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Sweden-Number/dlls/wininet/urlcache.c

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/*
* Wininet - Url Cache functions
*
* Copyright 2001,2002 CodeWeavers
* Copyright 2003-2008 Robert Shearman
*
* Eric Kohl
* Aric Stewart
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include "wine/port.h"
#define NONAMELESSUNION
#define NONAMELESSSTRUCT
#if defined(__MINGW32__) || defined (_MSC_VER)
#include <ws2tcpip.h>
#endif
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#ifdef HAVE_SYS_SOCKET_H
# include <sys/socket.h>
#endif
#include <time.h>
#include "windef.h"
#include "winbase.h"
#include "winuser.h"
#include "wininet.h"
#include "winineti.h"
#include "winerror.h"
#include "winreg.h"
#include "shlwapi.h"
#include "shlobj.h"
#include "shellapi.h"
#include "internet.h"
#include "wine/unicode.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(wininet);
static const char urlcache_ver_prefix[] = "WINE URLCache Ver ";
static const char urlcache_ver[] = "0.2012001";
#define ENTRY_START_OFFSET 0x4000
#define DIR_LENGTH 8
#define MAX_DIR_NO 0x20
#define BLOCKSIZE 128
#define HASHTABLE_SIZE 448
#define HASHTABLE_NUM_ENTRIES 64 /* this needs to be power of 2, that divides HASHTABLE_SIZE */
#define HASHTABLE_BLOCKSIZE (HASHTABLE_SIZE / HASHTABLE_NUM_ENTRIES)
#define ALLOCATION_TABLE_OFFSET 0x250
#define ALLOCATION_TABLE_SIZE (ENTRY_START_OFFSET - ALLOCATION_TABLE_OFFSET)
#define MIN_BLOCK_NO 0x80
#define MAX_BLOCK_NO (ALLOCATION_TABLE_SIZE * 8)
#define FILE_SIZE(blocks) ((blocks) * BLOCKSIZE + ENTRY_START_OFFSET)
#define HASHTABLE_URL 0
#define HASHTABLE_DEL 1
#define HASHTABLE_LOCK 2
#define HASHTABLE_FREE 3
#define HASHTABLE_REDR 5
#define HASHTABLE_FLAG_BITS 6
#define PENDING_DELETE_CACHE_ENTRY 0x00400000
#define INSTALLED_CACHE_ENTRY 0x10000000
#define GET_INSTALLED_ENTRY 0x200
#define CACHE_CONTAINER_NO_SUBDIR 0xFE
#define CACHE_HEADER_DATA_ROOT_LEAK_OFFSET 0x16
#define FILETIME_SECOND 10000000
#define DWORD_SIG(a,b,c,d) (a | (b << 8) | (c << 16) | (d << 24))
#define URL_SIGNATURE DWORD_SIG('U','R','L',' ')
#define REDR_SIGNATURE DWORD_SIG('R','E','D','R')
#define LEAK_SIGNATURE DWORD_SIG('L','E','A','K')
#define HASH_SIGNATURE DWORD_SIG('H','A','S','H')
#define DWORD_ALIGN(x) ( (DWORD)(((DWORD)(x)+sizeof(DWORD)-1)/sizeof(DWORD))*sizeof(DWORD) )
typedef struct _CACHEFILE_ENTRY
{
/* union
{*/
DWORD dwSignature; /* e.g. "URL " */
/* CHAR szSignature[4];
};*/
DWORD dwBlocksUsed; /* number of 128byte blocks used by this entry */
} CACHEFILE_ENTRY;
typedef struct _URL_CACHEFILE_ENTRY
{
CACHEFILE_ENTRY CacheFileEntry;
FILETIME LastModifiedTime;
FILETIME LastAccessTime;
WORD wExpiredDate; /* expire date in dos format */
WORD wExpiredTime; /* expire time in dos format */
DWORD dwUnknown1; /* usually zero */
ULARGE_INTEGER size; /* see INTERNET_CACHE_ENTRY_INFO::dwSizeLow/High */
DWORD dwUnknown2; /* usually zero */
DWORD dwExemptDelta; /* see INTERNET_CACHE_ENTRY_INFO::dwExemptDelta */
DWORD dwUnknown3; /* usually 0x60 */
DWORD dwOffsetUrl; /* offset of start of url from start of entry */
BYTE CacheDir; /* index of cache directory this url is stored in */
BYTE Unknown4; /* usually zero */
WORD wUnknown5; /* usually 0x1010 */
DWORD dwOffsetLocalName; /* offset of start of local filename from start of entry */
DWORD CacheEntryType; /* see INTERNET_CACHE_ENTRY_INFO::CacheEntryType */
DWORD dwOffsetHeaderInfo; /* offset of start of header info from start of entry */
DWORD dwHeaderInfoSize;
DWORD dwOffsetFileExtension; /* offset of start of file extension from start of entry */
WORD wLastSyncDate; /* last sync date in dos format */
WORD wLastSyncTime; /* last sync time in dos format */
DWORD dwHitRate; /* see INTERNET_CACHE_ENTRY_INFO::dwHitRate */
DWORD dwUseCount; /* see INTERNET_CACHE_ENTRY_INFO::dwUseCount */
WORD LastWriteDate;
WORD LastWriteTime;
DWORD dwUnknown7; /* usually zero */
DWORD dwUnknown8; /* usually zero */
/* packing to dword align start of next field */
/* CHAR szSourceUrlName[]; (url) */
/* packing to dword align start of next field */
/* CHAR szLocalFileName[]; (local file name excluding path) */
/* packing to dword align start of next field */
/* CHAR szHeaderInfo[]; (header info) */
} URL_CACHEFILE_ENTRY;
struct _HASH_ENTRY
{
DWORD dwHashKey;
DWORD dwOffsetEntry;
};
typedef struct _HASH_CACHEFILE_ENTRY
{
CACHEFILE_ENTRY CacheFileEntry;
DWORD dwAddressNext;
DWORD dwHashTableNumber;
struct _HASH_ENTRY HashTable[HASHTABLE_SIZE];
} HASH_CACHEFILE_ENTRY;
typedef struct _DIRECTORY_DATA
{
DWORD dwNumFiles;
char filename[DIR_LENGTH];
} DIRECTORY_DATA;
typedef struct _URLCACHE_HEADER
{
char szSignature[28];
DWORD dwFileSize;
DWORD dwOffsetFirstHashTable;
DWORD dwIndexCapacityInBlocks;
DWORD dwBlocksInUse;
DWORD dwUnknown1;
ULARGE_INTEGER CacheLimit;
ULARGE_INTEGER CacheUsage;
ULARGE_INTEGER ExemptUsage;
DWORD DirectoryCount;
DIRECTORY_DATA directory_data[MAX_DIR_NO];
DWORD options[0x21];
BYTE allocation_table[ALLOCATION_TABLE_SIZE];
} URLCACHE_HEADER, *LPURLCACHE_HEADER;
typedef const URLCACHE_HEADER *LPCURLCACHE_HEADER;
typedef struct _STREAM_HANDLE
{
HANDLE hFile;
CHAR lpszUrl[1];
} STREAM_HANDLE;
typedef struct _URLCACHECONTAINER
{
struct list entry; /* part of a list */
LPWSTR cache_prefix; /* string that has to be prefixed for this container to be used */
LPWSTR path; /* path to url container directory */
HANDLE hMapping; /* handle of file mapping */
DWORD file_size; /* size of file when mapping was opened */
HANDLE hMutex; /* handle of mutex */
DWORD default_entry_type;
} URLCACHECONTAINER;
/* List of all containers available */
static struct list UrlContainers = LIST_INIT(UrlContainers);
static DWORD URLCache_CreateHashTable(LPURLCACHE_HEADER pHeader, HASH_CACHEFILE_ENTRY *pPrevHash, HASH_CACHEFILE_ENTRY **ppHash);
/***********************************************************************
* URLCache_PathToObjectName (Internal)
*
* Converts a path to a name suitable for use as a Win32 object name.
* Replaces '\\' characters in-place with the specified character
* (usually '_' or '!')
*
* RETURNS
* nothing
*
*/
static void URLCache_PathToObjectName(LPWSTR lpszPath, WCHAR replace)
{
for (; *lpszPath; lpszPath++)
{
if (*lpszPath == '\\')
*lpszPath = replace;
}
}
/***********************************************************************
* URLCacheContainer_OpenIndex (Internal)
*
* Opens the index file and saves mapping handle in hCacheIndexMapping
*
* RETURNS
* ERROR_SUCCESS if succeeded
* Any other Win32 error code if failed
*
*/
static DWORD URLCacheContainer_OpenIndex(URLCACHECONTAINER * pContainer, DWORD blocks_no)
{
HANDLE hFile;
WCHAR wszFilePath[MAX_PATH];
DWORD dwFileSize, new_file_size;
static const WCHAR wszIndex[] = {'i','n','d','e','x','.','d','a','t',0};
static const WCHAR wszMappingFormat[] = {'%','s','%','s','_','%','l','u',0};
WaitForSingleObject(pContainer->hMutex, INFINITE);
if (pContainer->hMapping) {
ReleaseMutex(pContainer->hMutex);
return ERROR_SUCCESS;
}
strcpyW(wszFilePath, pContainer->path);
strcatW(wszFilePath, wszIndex);
hFile = CreateFileW(wszFilePath, GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_ALWAYS, 0, NULL);
if (hFile == INVALID_HANDLE_VALUE)
{
/* Maybe the directory wasn't there? Try to create it */
if (CreateDirectoryW(pContainer->path, 0))
hFile = CreateFileW(wszFilePath, GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_ALWAYS, 0, NULL);
}
if (hFile == INVALID_HANDLE_VALUE)
{
TRACE("Could not open or create cache index file \"%s\"\n", debugstr_w(wszFilePath));
ReleaseMutex(pContainer->hMutex);
return GetLastError();
}
dwFileSize = GetFileSize(hFile, NULL);
if (dwFileSize == INVALID_FILE_SIZE)
{
ReleaseMutex(pContainer->hMutex);
return GetLastError();
}
if (blocks_no < MIN_BLOCK_NO)
blocks_no = MIN_BLOCK_NO;
else if (blocks_no > MAX_BLOCK_NO)
blocks_no = MAX_BLOCK_NO;
new_file_size = FILE_SIZE(blocks_no);
if (dwFileSize < new_file_size)
{
static const CHAR szCacheContent[] = "Software\\Microsoft\\Windows\\CurrentVersion\\Internet Settings\\Cache\\Content";
HKEY key;
char achZeroes[0x1000];
DWORD dwOffset;
DWORD dwError = ERROR_SUCCESS;
if (SetFilePointer(hFile, 0, NULL, FILE_END) == INVALID_SET_FILE_POINTER)
dwError = GetLastError();
/* Write zeroes to the entire file so we can safely map it without
* fear of getting a SEGV because the disk is full.
*/
memset(achZeroes, 0, sizeof(achZeroes));
for (dwOffset = dwFileSize; dwOffset<new_file_size && dwError==ERROR_SUCCESS;
dwOffset += sizeof(achZeroes))
{
DWORD dwWrite = sizeof(achZeroes);
DWORD dwWritten;
if (new_file_size - dwOffset < dwWrite)
dwWrite = new_file_size - dwOffset;
if (!WriteFile(hFile, achZeroes, dwWrite, &dwWritten, 0) ||
dwWritten != dwWrite)
{
/* If we fail to write, we need to return the error that
* cause the problem and also make sure the file is no
* longer there, if possible.
*/
dwError = GetLastError();
}
}
if (dwError == ERROR_SUCCESS)
{
HANDLE hMapping = CreateFileMappingW(hFile, NULL, PAGE_READWRITE, 0, 0, NULL);
if (hMapping)
{
URLCACHE_HEADER *pHeader = MapViewOfFile(hMapping, FILE_MAP_WRITE, 0, 0, 0);
if (pHeader && dwFileSize)
{
pHeader->dwFileSize = new_file_size;
pHeader->dwIndexCapacityInBlocks = blocks_no;
}
else if (pHeader)
{
WCHAR *pwchDir;
WCHAR wszDirPath[MAX_PATH];
FILETIME ft;
int i, j;
HASH_CACHEFILE_ENTRY *pHashEntry;
/* First set some constants and defaults in the header */
memcpy(pHeader->szSignature, urlcache_ver_prefix, sizeof(urlcache_ver_prefix)-1);
memcpy(pHeader->szSignature+sizeof(urlcache_ver_prefix)-1, urlcache_ver, sizeof(urlcache_ver)-1);
pHeader->dwFileSize = new_file_size;
pHeader->dwIndexCapacityInBlocks = blocks_no;
/* 127MB - taken from default for Windows 2000 */
pHeader->CacheLimit.QuadPart = 0x07ff5400;
/* Copied from a Windows 2000 cache index */
pHeader->DirectoryCount = pContainer->default_entry_type==NORMAL_CACHE_ENTRY ? 4 : 0;
/* If the registry has a cache size set, use the registry value */
if (RegOpenKeyA(HKEY_CURRENT_USER, szCacheContent, &key) == ERROR_SUCCESS)
{
DWORD dw;
DWORD len = sizeof(dw);
DWORD keytype;
if (RegQueryValueExA(key, "CacheLimit", NULL, &keytype,
(BYTE *) &dw, &len) == ERROR_SUCCESS &&
keytype == REG_DWORD)
{
pHeader->CacheLimit.QuadPart = (ULONGLONG)dw * 1024;
}
RegCloseKey(key);
}
URLCache_CreateHashTable(pHeader, NULL, &pHashEntry);
/* Last step - create the directories */
strcpyW(wszDirPath, pContainer->path);
pwchDir = wszDirPath + strlenW(wszDirPath);
pwchDir[8] = 0;
GetSystemTimeAsFileTime(&ft);
for (i = 0; !dwError && i < pHeader->DirectoryCount; ++i)
{
pHeader->directory_data[i].dwNumFiles = 0;
for (j = 0;; ++j)
{
int k;
ULONGLONG n = ft.dwHighDateTime;
/* Generate a file name to attempt to create.
* This algorithm will create what will appear
* to be random and unrelated directory names
* of up to 9 characters in length.
*/
n <<= 32;
n += ft.dwLowDateTime;
n ^= ((ULONGLONG) i << 56) | ((ULONGLONG) j << 48);
for (k = 0; k < 8; ++k)
{
int r = (n % 36);
/* Dividing by a prime greater than 36 helps
* with the appearance of randomness
*/
n /= 37;
if (r < 10)
pwchDir[k] = '0' + r;
else
pwchDir[k] = 'A' + (r - 10);
}
if (CreateDirectoryW(wszDirPath, 0))
{
/* The following is OK because we generated an
* 8 character directory name made from characters
* [A-Z0-9], which are equivalent for all code
* pages and for UTF-16
*/
for (k = 0; k < 8; ++k)
pHeader->directory_data[i].filename[k] = pwchDir[k];
break;
}
else if (j >= 255)
{
/* Give up. The most likely cause of this
* is a full disk, but whatever the cause
* is, it should be more than apparent that
* we won't succeed.
*/
dwError = GetLastError();
break;
}
}
}
UnmapViewOfFile(pHeader);
}
else
{
dwError = GetLastError();
}
dwFileSize = new_file_size;
CloseHandle(hMapping);
}
else
{
dwError = GetLastError();
}
}
if (dwError)
{
CloseHandle(hFile);
DeleteFileW(wszFilePath);
ReleaseMutex(pContainer->hMutex);
return dwError;
}
}
pContainer->file_size = dwFileSize;
wsprintfW(wszFilePath, wszMappingFormat, pContainer->path, wszIndex, dwFileSize);
URLCache_PathToObjectName(wszFilePath, '_');
pContainer->hMapping = OpenFileMappingW(FILE_MAP_WRITE, FALSE, wszFilePath);
if (!pContainer->hMapping)
{
pContainer->hMapping = CreateFileMappingW(hFile, NULL, PAGE_READWRITE, 0, 0, wszFilePath);
CloseHandle(hFile);
/* Validate cache index file on first open */
if (pContainer->hMapping && blocks_no==MIN_BLOCK_NO)
{
URLCACHE_HEADER *pHeader = MapViewOfFile(pContainer->hMapping, FILE_MAP_WRITE, 0, 0, 0);
if (!pHeader)
{
ERR("MapViewOfFile failed (error is %d)\n", GetLastError());
CloseHandle(pContainer->hMapping);
pContainer->hMapping = NULL;
ReleaseMutex(pContainer->hMutex);
return GetLastError();
}
if (!memcmp(pHeader->szSignature, urlcache_ver_prefix, sizeof(urlcache_ver_prefix)-1) &&
memcmp(pHeader->szSignature+sizeof(urlcache_ver_prefix)-1, urlcache_ver, sizeof(urlcache_ver)-1))
{
TRACE("detected wrong version of cache: %s, expected %s\n", pHeader->szSignature, urlcache_ver);
UnmapViewOfFile(pHeader);
FreeUrlCacheSpaceW(pContainer->path, 100, 0);
}
else
{
UnmapViewOfFile(pHeader);
}
}
}
else
{
CloseHandle(hFile);
}
if (!pContainer->hMapping)
{
ERR("Couldn't create file mapping (error is %d)\n", GetLastError());
ReleaseMutex(pContainer->hMutex);
return GetLastError();
}
ReleaseMutex(pContainer->hMutex);
return ERROR_SUCCESS;
}
/***********************************************************************
* URLCacheContainer_CloseIndex (Internal)
*
* Closes the index
*
* RETURNS
* nothing
*
*/
static void URLCacheContainer_CloseIndex(URLCACHECONTAINER * pContainer)
{
CloseHandle(pContainer->hMapping);
pContainer->hMapping = NULL;
}
static BOOL URLCacheContainers_AddContainer(LPCWSTR cache_prefix,
LPCWSTR path, DWORD default_entry_type, LPWSTR mutex_name)
{
URLCACHECONTAINER * pContainer = heap_alloc(sizeof(URLCACHECONTAINER));
int cache_prefix_len = strlenW(cache_prefix);
if (!pContainer)
{
return FALSE;
}
pContainer->hMapping = NULL;
pContainer->file_size = 0;
pContainer->default_entry_type = default_entry_type;
pContainer->path = heap_strdupW(path);
if (!pContainer->path)
{
heap_free(pContainer);
return FALSE;
}
pContainer->cache_prefix = heap_alloc((cache_prefix_len + 1) * sizeof(WCHAR));
if (!pContainer->cache_prefix)
{
heap_free(pContainer->path);
heap_free(pContainer);
return FALSE;
}
memcpy(pContainer->cache_prefix, cache_prefix, (cache_prefix_len + 1) * sizeof(WCHAR));
CharLowerW(mutex_name);
URLCache_PathToObjectName(mutex_name, '!');
if ((pContainer->hMutex = CreateMutexW(NULL, FALSE, mutex_name)) == NULL)
{
ERR("couldn't create mutex (error is %d)\n", GetLastError());
heap_free(pContainer->path);
heap_free(pContainer);
return FALSE;
}
list_add_head(&UrlContainers, &pContainer->entry);
return TRUE;
}
static void URLCacheContainer_DeleteContainer(URLCACHECONTAINER * pContainer)
{
list_remove(&pContainer->entry);
URLCacheContainer_CloseIndex(pContainer);
CloseHandle(pContainer->hMutex);
heap_free(pContainer->path);
heap_free(pContainer->cache_prefix);
heap_free(pContainer);
}
static void URLCacheContainers_CreateDefaults(void)
{
static const WCHAR UrlSuffix[] = {'C','o','n','t','e','n','t','.','I','E','5',0};
static const WCHAR UrlPrefix[] = {0};
static const WCHAR HistorySuffix[] = {'H','i','s','t','o','r','y','.','I','E','5',0};
static const WCHAR HistoryPrefix[] = {'V','i','s','i','t','e','d',':',0};
static const WCHAR CookieSuffix[] = {0};
static const WCHAR CookiePrefix[] = {'C','o','o','k','i','e',':',0};
static const struct
{
int nFolder; /* CSIDL_* constant */
const WCHAR * shpath_suffix; /* suffix on path returned by SHGetSpecialFolderPath */
const WCHAR * cache_prefix; /* prefix used to reference the container */
DWORD default_entry_type;
} DefaultContainerData[] =
{
{ CSIDL_INTERNET_CACHE, UrlSuffix, UrlPrefix, NORMAL_CACHE_ENTRY },
{ CSIDL_HISTORY, HistorySuffix, HistoryPrefix, URLHISTORY_CACHE_ENTRY },
{ CSIDL_COOKIES, CookieSuffix, CookiePrefix, COOKIE_CACHE_ENTRY },
};
DWORD i;
for (i = 0; i < sizeof(DefaultContainerData) / sizeof(DefaultContainerData[0]); i++)
{
WCHAR wszCachePath[MAX_PATH];
WCHAR wszMutexName[MAX_PATH];
int path_len, suffix_len;
if (!SHGetSpecialFolderPathW(NULL, wszCachePath, DefaultContainerData[i].nFolder, TRUE))
{
ERR("Couldn't get path for default container %u\n", i);
continue;
}
path_len = strlenW(wszCachePath);
suffix_len = strlenW(DefaultContainerData[i].shpath_suffix);
if (path_len + suffix_len + 2 > MAX_PATH)
{
ERR("Path too long\n");
continue;
}
wszCachePath[path_len] = '\\';
wszCachePath[path_len+1] = 0;
strcpyW(wszMutexName, wszCachePath);
if (suffix_len)
{
memcpy(wszCachePath + path_len + 1, DefaultContainerData[i].shpath_suffix, (suffix_len + 1) * sizeof(WCHAR));
wszCachePath[path_len + suffix_len + 1] = '\\';
wszCachePath[path_len + suffix_len + 2] = '\0';
}
URLCacheContainers_AddContainer(DefaultContainerData[i].cache_prefix, wszCachePath,
DefaultContainerData[i].default_entry_type, wszMutexName);
}
}
static void URLCacheContainers_DeleteAll(void)
{
while(!list_empty(&UrlContainers))
URLCacheContainer_DeleteContainer(
LIST_ENTRY(list_head(&UrlContainers), URLCACHECONTAINER, entry)
);
}
static DWORD URLCacheContainers_FindContainerW(LPCWSTR lpwszUrl, URLCACHECONTAINER ** ppContainer)
{
URLCACHECONTAINER * pContainer;
TRACE("searching for prefix for URL: %s\n", debugstr_w(lpwszUrl));
if(!lpwszUrl)
return ERROR_INVALID_PARAMETER;
LIST_FOR_EACH_ENTRY(pContainer, &UrlContainers, URLCACHECONTAINER, entry)
{
int prefix_len = strlenW(pContainer->cache_prefix);
if (!strncmpW(pContainer->cache_prefix, lpwszUrl, prefix_len))
{
TRACE("found container with prefix %s for URL %s\n", debugstr_w(pContainer->cache_prefix), debugstr_w(lpwszUrl));
*ppContainer = pContainer;
return ERROR_SUCCESS;
}
}
ERR("no container found\n");
return ERROR_FILE_NOT_FOUND;
}
static DWORD URLCacheContainers_FindContainerA(LPCSTR lpszUrl, URLCACHECONTAINER ** ppContainer)
{
LPWSTR url = NULL;
DWORD ret;
if (lpszUrl && !(url = heap_strdupAtoW(lpszUrl)))
return ERROR_OUTOFMEMORY;
ret = URLCacheContainers_FindContainerW(url, ppContainer);
heap_free(url);
return ret;
}
static BOOL URLCacheContainers_Enum(LPCWSTR lpwszSearchPattern, DWORD dwIndex, URLCACHECONTAINER ** ppContainer)
{
DWORD i = 0;
URLCACHECONTAINER * pContainer;
TRACE("searching for prefix: %s\n", debugstr_w(lpwszSearchPattern));
/* non-NULL search pattern only returns one container ever */
if (lpwszSearchPattern && dwIndex > 0)
return FALSE;
LIST_FOR_EACH_ENTRY(pContainer, &UrlContainers, URLCACHECONTAINER, entry)
{
if (lpwszSearchPattern)
{
if (!strcmpW(pContainer->cache_prefix, lpwszSearchPattern))
{
TRACE("found container with prefix %s\n", debugstr_w(pContainer->cache_prefix));
*ppContainer = pContainer;
return TRUE;
}
}
else
{
if (i == dwIndex)
{
TRACE("found container with prefix %s\n", debugstr_w(pContainer->cache_prefix));
*ppContainer = pContainer;
return TRUE;
}
}
i++;
}
return FALSE;
}
/***********************************************************************
* URLCacheContainer_LockIndex (Internal)
*
* Locks the index for system-wide exclusive access.
*
* RETURNS
* Cache file header if successful
* NULL if failed and calls SetLastError.
*/
static LPURLCACHE_HEADER URLCacheContainer_LockIndex(URLCACHECONTAINER * pContainer)
{
BYTE index;
LPVOID pIndexData;
URLCACHE_HEADER * pHeader;
DWORD error;
/* acquire mutex */
WaitForSingleObject(pContainer->hMutex, INFINITE);
pIndexData = MapViewOfFile(pContainer->hMapping, FILE_MAP_WRITE, 0, 0, 0);
if (!pIndexData)
{
ReleaseMutex(pContainer->hMutex);
ERR("Couldn't MapViewOfFile. Error: %d\n", GetLastError());
return NULL;
}
pHeader = (URLCACHE_HEADER *)pIndexData;
/* file has grown - we need to remap to prevent us getting
* access violations when we try and access beyond the end
* of the memory mapped file */
if (pHeader->dwFileSize != pContainer->file_size)
{
UnmapViewOfFile( pHeader );
URLCacheContainer_CloseIndex(pContainer);
error = URLCacheContainer_OpenIndex(pContainer, MIN_BLOCK_NO);
if (error != ERROR_SUCCESS)
{
ReleaseMutex(pContainer->hMutex);
SetLastError(error);
return NULL;
}
pIndexData = MapViewOfFile(pContainer->hMapping, FILE_MAP_WRITE, 0, 0, 0);
if (!pIndexData)
{
ReleaseMutex(pContainer->hMutex);
ERR("Couldn't MapViewOfFile. Error: %d\n", GetLastError());
return NULL;
}
pHeader = (URLCACHE_HEADER *)pIndexData;
}
TRACE("Signature: %s, file size: %d bytes\n", pHeader->szSignature, pHeader->dwFileSize);
for (index = 0; index < pHeader->DirectoryCount; index++)
{
TRACE("Directory[%d] = \"%.8s\"\n", index, pHeader->directory_data[index].filename);
}
return pHeader;
}
/***********************************************************************
* URLCacheContainer_UnlockIndex (Internal)
*
*/
static BOOL URLCacheContainer_UnlockIndex(URLCACHECONTAINER * pContainer, LPURLCACHE_HEADER pHeader)
{
/* release mutex */
ReleaseMutex(pContainer->hMutex);
return UnmapViewOfFile(pHeader);
}
#ifndef CHAR_BIT
#define CHAR_BIT (8 * sizeof(CHAR))
#endif
/***********************************************************************
* URLCache_Allocation_BlockIsFree (Internal)
*
* Is the specified block number free?
*
* RETURNS
* zero if free
* non-zero otherwise
*
*/
static inline BYTE URLCache_Allocation_BlockIsFree(BYTE * AllocationTable, DWORD dwBlockNumber)
{
BYTE mask = 1 << (dwBlockNumber % CHAR_BIT);
return (AllocationTable[dwBlockNumber / CHAR_BIT] & mask) == 0;
}
/***********************************************************************
* URLCache_Allocation_BlockFree (Internal)
*
* Marks the specified block as free
*
* CAUTION
* this function is not updating used blocks count
*
* RETURNS
* nothing
*
*/
static inline void URLCache_Allocation_BlockFree(BYTE * AllocationTable, DWORD dwBlockNumber)
{
BYTE mask = ~(1 << (dwBlockNumber % CHAR_BIT));
AllocationTable[dwBlockNumber / CHAR_BIT] &= mask;
}
/***********************************************************************
* URLCache_Allocation_BlockAllocate (Internal)
*
* Marks the specified block as allocated
*
* CAUTION
* this function is not updating used blocks count
*
* RETURNS
* nothing
*
*/
static inline void URLCache_Allocation_BlockAllocate(BYTE * AllocationTable, DWORD dwBlockNumber)
{
BYTE mask = 1 << (dwBlockNumber % CHAR_BIT);
AllocationTable[dwBlockNumber / CHAR_BIT] |= mask;
}
/***********************************************************************
* URLCache_FindFirstFreeEntry (Internal)
*
* Finds and allocates the first block of free space big enough and
* sets ppEntry to point to it.
*
* RETURNS
* ERROR_SUCCESS when free memory block was found
* Any other Win32 error code if the entry could not be added
*
*/
static DWORD URLCache_FindFirstFreeEntry(URLCACHE_HEADER * pHeader, DWORD dwBlocksNeeded, CACHEFILE_ENTRY ** ppEntry)
{
DWORD dwBlockNumber;
DWORD dwFreeCounter;
for (dwBlockNumber = 0; dwBlockNumber < pHeader->dwIndexCapacityInBlocks; dwBlockNumber++)
{
for (dwFreeCounter = 0;
dwFreeCounter < dwBlocksNeeded &&
dwFreeCounter + dwBlockNumber < pHeader->dwIndexCapacityInBlocks &&
URLCache_Allocation_BlockIsFree(pHeader->allocation_table, dwBlockNumber + dwFreeCounter);
dwFreeCounter++)
TRACE("Found free block at no. %d (0x%x)\n", dwBlockNumber, ENTRY_START_OFFSET + dwBlockNumber * BLOCKSIZE);
if (dwFreeCounter == dwBlocksNeeded)
{
DWORD index;
TRACE("Found free blocks starting at no. %d (0x%x)\n", dwBlockNumber, ENTRY_START_OFFSET + dwBlockNumber * BLOCKSIZE);
for (index = 0; index < dwBlocksNeeded; index++)
URLCache_Allocation_BlockAllocate(pHeader->allocation_table, dwBlockNumber + index);
*ppEntry = (CACHEFILE_ENTRY *)((LPBYTE)pHeader + ENTRY_START_OFFSET + dwBlockNumber * BLOCKSIZE);
for (index = 0; index < dwBlocksNeeded * BLOCKSIZE / sizeof(DWORD); index++)
((DWORD*)*ppEntry)[index] = 0xdeadbeef;
(*ppEntry)->dwBlocksUsed = dwBlocksNeeded;
pHeader->dwBlocksInUse += dwBlocksNeeded;
return ERROR_SUCCESS;
}
}
return ERROR_HANDLE_DISK_FULL;
}
/***********************************************************************
* URLCache_DeleteEntry (Internal)
*
* Deletes the specified entry and frees the space allocated to it
*
* RETURNS
* TRUE if it succeeded
* FALSE if it failed
*
*/
static BOOL URLCache_DeleteEntry(LPURLCACHE_HEADER pHeader, CACHEFILE_ENTRY * pEntry)
{
DWORD dwStartBlock;
DWORD dwBlock;
/* update allocation table */
dwStartBlock = ((DWORD)((BYTE *)pEntry - (BYTE *)pHeader) - ENTRY_START_OFFSET) / BLOCKSIZE;
for (dwBlock = dwStartBlock; dwBlock < dwStartBlock + pEntry->dwBlocksUsed; dwBlock++)
URLCache_Allocation_BlockFree(pHeader->allocation_table, dwBlock);
pHeader->dwBlocksInUse -= pEntry->dwBlocksUsed;
return TRUE;
}
/***********************************************************************
* URLCache_LocalFileNameToPathW (Internal)
*
* Copies the full path to the specified buffer given the local file
* name and the index of the directory it is in. Always sets value in
* lpBufferSize to the required buffer size (in bytes).
*
* RETURNS
* TRUE if the buffer was big enough
* FALSE if the buffer was too small
*
*/
static BOOL URLCache_LocalFileNameToPathW(
const URLCACHECONTAINER * pContainer,
LPCURLCACHE_HEADER pHeader,
LPCSTR szLocalFileName,
BYTE Directory,
LPWSTR wszPath,
LPLONG lpBufferSize)
{
LONG nRequired;
int path_len = strlenW(pContainer->path);
int file_name_len = MultiByteToWideChar(CP_ACP, 0, szLocalFileName, -1, NULL, 0);
if (Directory!=CACHE_CONTAINER_NO_SUBDIR && Directory>=pHeader->DirectoryCount)
{
*lpBufferSize = 0;
return FALSE;
}
nRequired = (path_len + file_name_len) * sizeof(WCHAR);
if(Directory != CACHE_CONTAINER_NO_SUBDIR)
nRequired += (DIR_LENGTH + 1) * sizeof(WCHAR);
if (nRequired <= *lpBufferSize)
{
int dir_len;
memcpy(wszPath, pContainer->path, path_len * sizeof(WCHAR));
if (Directory != CACHE_CONTAINER_NO_SUBDIR)
{
dir_len = MultiByteToWideChar(CP_ACP, 0, pHeader->directory_data[Directory].filename, DIR_LENGTH, wszPath + path_len, DIR_LENGTH);
wszPath[dir_len + path_len] = '\\';
dir_len++;
}
else
{
dir_len = 0;
}
MultiByteToWideChar(CP_ACP, 0, szLocalFileName, -1, wszPath + dir_len + path_len, file_name_len);
*lpBufferSize = nRequired;
return TRUE;
}
*lpBufferSize = nRequired;
return FALSE;
}
/***********************************************************************
* URLCache_LocalFileNameToPathA (Internal)
*
* Copies the full path to the specified buffer given the local file
* name and the index of the directory it is in. Always sets value in
* lpBufferSize to the required buffer size.
*
* RETURNS
* TRUE if the buffer was big enough
* FALSE if the buffer was too small
*
*/
static BOOL URLCache_LocalFileNameToPathA(
const URLCACHECONTAINER * pContainer,
LPCURLCACHE_HEADER pHeader,
LPCSTR szLocalFileName,
BYTE Directory,
LPSTR szPath,
LPLONG lpBufferSize)
{
LONG nRequired;
int path_len, file_name_len, dir_len;
if (Directory!=CACHE_CONTAINER_NO_SUBDIR && Directory>=pHeader->DirectoryCount)
{
*lpBufferSize = 0;
return FALSE;
}
path_len = WideCharToMultiByte(CP_ACP, 0, pContainer->path, -1, NULL, 0, NULL, NULL) - 1;
file_name_len = strlen(szLocalFileName) + 1 /* for nul-terminator */;
if (Directory!=CACHE_CONTAINER_NO_SUBDIR)
dir_len = DIR_LENGTH+1;
else
dir_len = 0;
nRequired = (path_len + dir_len + file_name_len) * sizeof(char);
if (nRequired < *lpBufferSize)
{
WideCharToMultiByte(CP_ACP, 0, pContainer->path, -1, szPath, path_len, NULL, NULL);
if(dir_len) {
memcpy(szPath+path_len, pHeader->directory_data[Directory].filename, dir_len-1);
szPath[path_len + dir_len-1] = '\\';
}
memcpy(szPath + path_len + dir_len, szLocalFileName, file_name_len);
*lpBufferSize = nRequired;
return TRUE;
}
*lpBufferSize = nRequired;
return FALSE;
}
/* Just like FileTimeToDosDateTime, except that it also maps the special
* case of a filetime of (0,0) to a DOS date/time of (0,0).
*/
static void URLCache_FileTimeToDosDateTime(const FILETIME *ft, WORD *fatdate,
WORD *fattime)
{
if (!ft->dwLowDateTime && !ft->dwHighDateTime)
*fatdate = *fattime = 0;
else
FileTimeToDosDateTime(ft, fatdate, fattime);
}
/***********************************************************************
* URLCache_DeleteFile (Internal)
*/
static DWORD URLCache_DeleteFile(const URLCACHECONTAINER *container,
URLCACHE_HEADER *header, URL_CACHEFILE_ENTRY *url_entry)
{
WIN32_FILE_ATTRIBUTE_DATA attr;
WCHAR path[MAX_PATH];
LONG path_size = sizeof(path);
DWORD err;
WORD date, time;
if(!url_entry->dwOffsetLocalName)
goto succ;
if(!URLCache_LocalFileNameToPathW(container, header,
(LPCSTR)url_entry+url_entry->dwOffsetLocalName,
url_entry->CacheDir, path, &path_size))
goto succ;
if(!GetFileAttributesExW(path, GetFileExInfoStandard, &attr))
goto succ;
URLCache_FileTimeToDosDateTime(&attr.ftLastWriteTime, &date, &time);
if(date != url_entry->LastWriteDate || time != url_entry->LastWriteTime)
goto succ;
err = (DeleteFileW(path) ? ERROR_SUCCESS : GetLastError());
if(err == ERROR_ACCESS_DENIED || err == ERROR_SHARING_VIOLATION)
return err;
succ:
if (url_entry->CacheDir < header->DirectoryCount)
{
if (header->directory_data[url_entry->CacheDir].dwNumFiles)
header->directory_data[url_entry->CacheDir].dwNumFiles--;
}
if (url_entry->CacheEntryType & STICKY_CACHE_ENTRY)
{
if (url_entry->size.QuadPart < header->ExemptUsage.QuadPart)
header->ExemptUsage.QuadPart -= url_entry->size.QuadPart;
else
header->ExemptUsage.QuadPart = 0;
}
else
{
if (url_entry->size.QuadPart < header->CacheUsage.QuadPart)
header->CacheUsage.QuadPart -= url_entry->size.QuadPart;
else
header->CacheUsage.QuadPart = 0;
}
return ERROR_SUCCESS;
}
static BOOL urlcache_clean_leaked_entries(URLCACHECONTAINER *container, URLCACHE_HEADER *header)
{
DWORD *leak_off;
BOOL freed = FALSE;
leak_off = &header->options[CACHE_HEADER_DATA_ROOT_LEAK_OFFSET];
while(*leak_off) {
URL_CACHEFILE_ENTRY *url_entry = (URL_CACHEFILE_ENTRY*)((LPBYTE)header + *leak_off);
if(SUCCEEDED(URLCache_DeleteFile(container, header, url_entry))) {
*leak_off = url_entry->dwExemptDelta;
URLCache_DeleteEntry(header, &url_entry->CacheFileEntry);
freed = TRUE;
}else {
leak_off = &url_entry->dwExemptDelta;
}
}
return freed;
}
/***********************************************************************
* URLCacheContainer_CleanIndex (Internal)
*
* This function is meant to make place in index file by removing leaked
* files entries and resizing the file.
*
* CAUTION: file view may get mapped to new memory
*
* RETURNS
* ERROR_SUCCESS when new memory is available
* error code otherwise
*/
static DWORD URLCacheContainer_CleanIndex(URLCACHECONTAINER *container, URLCACHE_HEADER **file_view)
{
URLCACHE_HEADER *header = *file_view;
DWORD ret;
TRACE("(%s %s)\n", debugstr_w(container->cache_prefix), debugstr_w(container->path));
if(urlcache_clean_leaked_entries(container, header))
return ERROR_SUCCESS;
if(header->dwFileSize >= ALLOCATION_TABLE_SIZE*8*BLOCKSIZE + ENTRY_START_OFFSET) {
WARN("index file has maximal size\n");
return ERROR_NOT_ENOUGH_MEMORY;
}
URLCacheContainer_CloseIndex(container);
ret = URLCacheContainer_OpenIndex(container, header->dwIndexCapacityInBlocks*2);
if(ret != ERROR_SUCCESS)
return ret;
header = MapViewOfFile(container->hMapping, FILE_MAP_WRITE, 0, 0, 0);
if(!header)
return GetLastError();
UnmapViewOfFile(*file_view);
*file_view = header;
return ERROR_SUCCESS;
}
/* Just like DosDateTimeToFileTime, except that it also maps the special
* case of a DOS date/time of (0,0) to a filetime of (0,0).
*/
static void URLCache_DosDateTimeToFileTime(WORD fatdate, WORD fattime,
FILETIME *ft)
{
if (!fatdate && !fattime)
ft->dwLowDateTime = ft->dwHighDateTime = 0;
else
DosDateTimeToFileTime(fatdate, fattime, ft);
}
/***********************************************************************
* URLCache_CopyEntry (Internal)
*
* Copies an entry from the cache index file to the Win32 structure
*
* RETURNS
* ERROR_SUCCESS if the buffer was big enough
* ERROR_INSUFFICIENT_BUFFER if the buffer was too small
*
*/
static DWORD URLCache_CopyEntry(
URLCACHECONTAINER * pContainer,
LPCURLCACHE_HEADER pHeader,
LPINTERNET_CACHE_ENTRY_INFOA lpCacheEntryInfo,
LPDWORD lpdwBufferSize,
const URL_CACHEFILE_ENTRY * pUrlEntry,
BOOL bUnicode)
{
int lenUrl;
DWORD dwRequiredSize = sizeof(*lpCacheEntryInfo);
if (*lpdwBufferSize >= dwRequiredSize)
{
lpCacheEntryInfo->lpHeaderInfo = NULL;
lpCacheEntryInfo->lpszFileExtension = NULL;
lpCacheEntryInfo->lpszLocalFileName = NULL;
lpCacheEntryInfo->lpszSourceUrlName = NULL;
lpCacheEntryInfo->CacheEntryType = pUrlEntry->CacheEntryType;
lpCacheEntryInfo->u.dwExemptDelta = pUrlEntry->dwExemptDelta;
lpCacheEntryInfo->dwHeaderInfoSize = pUrlEntry->dwHeaderInfoSize;
lpCacheEntryInfo->dwHitRate = pUrlEntry->dwHitRate;
lpCacheEntryInfo->dwSizeHigh = pUrlEntry->size.u.HighPart;
lpCacheEntryInfo->dwSizeLow = pUrlEntry->size.u.LowPart;
lpCacheEntryInfo->dwStructSize = sizeof(*lpCacheEntryInfo);
lpCacheEntryInfo->dwUseCount = pUrlEntry->dwUseCount;
URLCache_DosDateTimeToFileTime(pUrlEntry->wExpiredDate, pUrlEntry->wExpiredTime, &lpCacheEntryInfo->ExpireTime);
lpCacheEntryInfo->LastAccessTime.dwHighDateTime = pUrlEntry->LastAccessTime.dwHighDateTime;
lpCacheEntryInfo->LastAccessTime.dwLowDateTime = pUrlEntry->LastAccessTime.dwLowDateTime;
lpCacheEntryInfo->LastModifiedTime.dwHighDateTime = pUrlEntry->LastModifiedTime.dwHighDateTime;
lpCacheEntryInfo->LastModifiedTime.dwLowDateTime = pUrlEntry->LastModifiedTime.dwLowDateTime;
URLCache_DosDateTimeToFileTime(pUrlEntry->wLastSyncDate, pUrlEntry->wLastSyncTime, &lpCacheEntryInfo->LastSyncTime);
}
if ((dwRequiredSize % 4) && (dwRequiredSize < *lpdwBufferSize))
ZeroMemory((LPBYTE)lpCacheEntryInfo + dwRequiredSize, 4 - (dwRequiredSize % 4));
dwRequiredSize = DWORD_ALIGN(dwRequiredSize);
if (bUnicode)
lenUrl = MultiByteToWideChar(CP_ACP, 0, (LPCSTR)pUrlEntry + pUrlEntry->dwOffsetUrl, -1, NULL, 0);
else
lenUrl = strlen((LPCSTR)pUrlEntry + pUrlEntry->dwOffsetUrl);
dwRequiredSize += (lenUrl + 1) * (bUnicode ? sizeof(WCHAR) : sizeof(CHAR));
/* FIXME: is source url optional? */
if (*lpdwBufferSize >= dwRequiredSize)
{
DWORD lenUrlBytes = (lenUrl+1) * (bUnicode ? sizeof(WCHAR) : sizeof(CHAR));
lpCacheEntryInfo->lpszSourceUrlName = (LPSTR)lpCacheEntryInfo + dwRequiredSize - lenUrlBytes;
if (bUnicode)
MultiByteToWideChar(CP_ACP, 0, (LPCSTR)pUrlEntry + pUrlEntry->dwOffsetUrl, -1, (LPWSTR)lpCacheEntryInfo->lpszSourceUrlName, lenUrl + 1);
else
memcpy(lpCacheEntryInfo->lpszSourceUrlName, (LPCSTR)pUrlEntry + pUrlEntry->dwOffsetUrl, lenUrlBytes);
}
if ((dwRequiredSize % 4) && (dwRequiredSize < *lpdwBufferSize))
ZeroMemory((LPBYTE)lpCacheEntryInfo + dwRequiredSize, 4 - (dwRequiredSize % 4));
dwRequiredSize = DWORD_ALIGN(dwRequiredSize);
if (pUrlEntry->dwOffsetLocalName)
{
LONG nLocalFilePathSize;
LPSTR lpszLocalFileName;
lpszLocalFileName = (LPSTR)lpCacheEntryInfo + dwRequiredSize;
nLocalFilePathSize = *lpdwBufferSize - dwRequiredSize;
if ((bUnicode && URLCache_LocalFileNameToPathW(pContainer, pHeader, (LPCSTR)pUrlEntry + pUrlEntry->dwOffsetLocalName, pUrlEntry->CacheDir, (LPWSTR)lpszLocalFileName, &nLocalFilePathSize)) ||
(!bUnicode && URLCache_LocalFileNameToPathA(pContainer, pHeader, (LPCSTR)pUrlEntry + pUrlEntry->dwOffsetLocalName, pUrlEntry->CacheDir, lpszLocalFileName, &nLocalFilePathSize)))
{
lpCacheEntryInfo->lpszLocalFileName = lpszLocalFileName;
}
dwRequiredSize += nLocalFilePathSize * (bUnicode ? sizeof(WCHAR) : sizeof(CHAR)) ;
if ((dwRequiredSize % 4) && (dwRequiredSize < *lpdwBufferSize))
ZeroMemory((LPBYTE)lpCacheEntryInfo + dwRequiredSize, 4 - (dwRequiredSize % 4));
dwRequiredSize = DWORD_ALIGN(dwRequiredSize);
}
dwRequiredSize += pUrlEntry->dwHeaderInfoSize + 1;
if (*lpdwBufferSize >= dwRequiredSize)
{
lpCacheEntryInfo->lpHeaderInfo = (LPBYTE)lpCacheEntryInfo + dwRequiredSize - pUrlEntry->dwHeaderInfoSize - 1;
memcpy(lpCacheEntryInfo->lpHeaderInfo, (LPCSTR)pUrlEntry + pUrlEntry->dwOffsetHeaderInfo, pUrlEntry->dwHeaderInfoSize);
((LPBYTE)lpCacheEntryInfo)[dwRequiredSize - 1] = '\0';
}
if ((dwRequiredSize % 4) && (dwRequiredSize < *lpdwBufferSize))
ZeroMemory((LPBYTE)lpCacheEntryInfo + dwRequiredSize, 4 - (dwRequiredSize % 4));
dwRequiredSize = DWORD_ALIGN(dwRequiredSize);
if (pUrlEntry->dwOffsetFileExtension)
{
int lenExtension;
if (bUnicode)
lenExtension = MultiByteToWideChar(CP_ACP, 0, (LPCSTR)pUrlEntry + pUrlEntry->dwOffsetFileExtension, -1, NULL, 0);
else
lenExtension = strlen((LPCSTR)pUrlEntry + pUrlEntry->dwOffsetFileExtension) + 1;
dwRequiredSize += lenExtension * (bUnicode ? sizeof(WCHAR) : sizeof(CHAR));
if (*lpdwBufferSize >= dwRequiredSize)
{
lpCacheEntryInfo->lpszFileExtension = (LPSTR)lpCacheEntryInfo + dwRequiredSize - lenExtension;
if (bUnicode)
MultiByteToWideChar(CP_ACP, 0, (LPCSTR)pUrlEntry + pUrlEntry->dwOffsetFileExtension, -1, (LPWSTR)lpCacheEntryInfo->lpszSourceUrlName, lenExtension);
else
memcpy(lpCacheEntryInfo->lpszFileExtension, (LPCSTR)pUrlEntry + pUrlEntry->dwOffsetFileExtension, lenExtension * sizeof(CHAR));
}
if ((dwRequiredSize % 4) && (dwRequiredSize < *lpdwBufferSize))
ZeroMemory((LPBYTE)lpCacheEntryInfo + dwRequiredSize, 4 - (dwRequiredSize % 4));
dwRequiredSize = DWORD_ALIGN(dwRequiredSize);
}
if (dwRequiredSize > *lpdwBufferSize)
{
*lpdwBufferSize = dwRequiredSize;
return ERROR_INSUFFICIENT_BUFFER;
}
*lpdwBufferSize = dwRequiredSize;
return ERROR_SUCCESS;
}
/***********************************************************************
* URLCache_SetEntryInfo (Internal)
*
* Helper for SetUrlCacheEntryInfo{A,W}. Sets fields in URL entry
* according to the flags set by dwFieldControl.
*
* RETURNS
* ERROR_SUCCESS if the buffer was big enough
* ERROR_INSUFFICIENT_BUFFER if the buffer was too small
*
*/
static DWORD URLCache_SetEntryInfo(URL_CACHEFILE_ENTRY * pUrlEntry, const INTERNET_CACHE_ENTRY_INFOW * lpCacheEntryInfo, DWORD dwFieldControl)
{
if (dwFieldControl & CACHE_ENTRY_ACCTIME_FC)
pUrlEntry->LastAccessTime = lpCacheEntryInfo->LastAccessTime;
if (dwFieldControl & CACHE_ENTRY_ATTRIBUTE_FC)
pUrlEntry->CacheEntryType = lpCacheEntryInfo->CacheEntryType;
if (dwFieldControl & CACHE_ENTRY_EXEMPT_DELTA_FC)
pUrlEntry->dwExemptDelta = lpCacheEntryInfo->u.dwExemptDelta;
if (dwFieldControl & CACHE_ENTRY_EXPTIME_FC)
URLCache_FileTimeToDosDateTime(&lpCacheEntryInfo->ExpireTime, &pUrlEntry->wExpiredDate, &pUrlEntry->wExpiredTime);
if (dwFieldControl & CACHE_ENTRY_HEADERINFO_FC)
FIXME("CACHE_ENTRY_HEADERINFO_FC unimplemented\n");
if (dwFieldControl & CACHE_ENTRY_HITRATE_FC)
pUrlEntry->dwHitRate = lpCacheEntryInfo->dwHitRate;
if (dwFieldControl & CACHE_ENTRY_MODTIME_FC)
pUrlEntry->LastModifiedTime = lpCacheEntryInfo->LastModifiedTime;
if (dwFieldControl & CACHE_ENTRY_SYNCTIME_FC)
URLCache_FileTimeToDosDateTime(&lpCacheEntryInfo->LastAccessTime, &pUrlEntry->wLastSyncDate, &pUrlEntry->wLastSyncTime);
return ERROR_SUCCESS;
}
/***********************************************************************
* URLCache_HashKey (Internal)
*
* Returns the hash key for a given string
*
* RETURNS
* hash key for the string
*
*/
static DWORD URLCache_HashKey(LPCSTR lpszKey)
{
/* NOTE: this uses the same lookup table as SHLWAPI.UrlHash{A,W}
* but the algorithm and result are not the same!
*/
static const unsigned char lookupTable[256] =
{
0x01, 0x0E, 0x6E, 0x19, 0x61, 0xAE, 0x84, 0x77,
0x8A, 0xAA, 0x7D, 0x76, 0x1B, 0xE9, 0x8C, 0x33,
0x57, 0xC5, 0xB1, 0x6B, 0xEA, 0xA9, 0x38, 0x44,
0x1E, 0x07, 0xAD, 0x49, 0xBC, 0x28, 0x24, 0x41,
0x31, 0xD5, 0x68, 0xBE, 0x39, 0xD3, 0x94, 0xDF,
0x30, 0x73, 0x0F, 0x02, 0x43, 0xBA, 0xD2, 0x1C,
0x0C, 0xB5, 0x67, 0x46, 0x16, 0x3A, 0x4B, 0x4E,
0xB7, 0xA7, 0xEE, 0x9D, 0x7C, 0x93, 0xAC, 0x90,
0xB0, 0xA1, 0x8D, 0x56, 0x3C, 0x42, 0x80, 0x53,
0x9C, 0xF1, 0x4F, 0x2E, 0xA8, 0xC6, 0x29, 0xFE,
0xB2, 0x55, 0xFD, 0xED, 0xFA, 0x9A, 0x85, 0x58,
0x23, 0xCE, 0x5F, 0x74, 0xFC, 0xC0, 0x36, 0xDD,
0x66, 0xDA, 0xFF, 0xF0, 0x52, 0x6A, 0x9E, 0xC9,
0x3D, 0x03, 0x59, 0x09, 0x2A, 0x9B, 0x9F, 0x5D,
0xA6, 0x50, 0x32, 0x22, 0xAF, 0xC3, 0x64, 0x63,
0x1A, 0x96, 0x10, 0x91, 0x04, 0x21, 0x08, 0xBD,
0x79, 0x40, 0x4D, 0x48, 0xD0, 0xF5, 0x82, 0x7A,
0x8F, 0x37, 0x69, 0x86, 0x1D, 0xA4, 0xB9, 0xC2,
0xC1, 0xEF, 0x65, 0xF2, 0x05, 0xAB, 0x7E, 0x0B,
0x4A, 0x3B, 0x89, 0xE4, 0x6C, 0xBF, 0xE8, 0x8B,
0x06, 0x18, 0x51, 0x14, 0x7F, 0x11, 0x5B, 0x5C,
0xFB, 0x97, 0xE1, 0xCF, 0x15, 0x62, 0x71, 0x70,
0x54, 0xE2, 0x12, 0xD6, 0xC7, 0xBB, 0x0D, 0x20,
0x5E, 0xDC, 0xE0, 0xD4, 0xF7, 0xCC, 0xC4, 0x2B,
0xF9, 0xEC, 0x2D, 0xF4, 0x6F, 0xB6, 0x99, 0x88,
0x81, 0x5A, 0xD9, 0xCA, 0x13, 0xA5, 0xE7, 0x47,
0xE6, 0x8E, 0x60, 0xE3, 0x3E, 0xB3, 0xF6, 0x72,
0xA2, 0x35, 0xA0, 0xD7, 0xCD, 0xB4, 0x2F, 0x6D,
0x2C, 0x26, 0x1F, 0x95, 0x87, 0x00, 0xD8, 0x34,
0x3F, 0x17, 0x25, 0x45, 0x27, 0x75, 0x92, 0xB8,
0xA3, 0xC8, 0xDE, 0xEB, 0xF8, 0xF3, 0xDB, 0x0A,
0x98, 0x83, 0x7B, 0xE5, 0xCB, 0x4C, 0x78, 0xD1
};
BYTE key[4];
DWORD i;
for (i = 0; i < sizeof(key) / sizeof(key[0]); i++)
key[i] = lookupTable[(*lpszKey + i) & 0xFF];
for (lpszKey++; *lpszKey && ((lpszKey[0] != '/') || (lpszKey[1] != 0)); lpszKey++)
{
for (i = 0; i < sizeof(key) / sizeof(key[0]); i++)
key[i] = lookupTable[*lpszKey ^ key[i]];
}
return *(DWORD *)key;
}
static inline HASH_CACHEFILE_ENTRY * URLCache_HashEntryFromOffset(LPCURLCACHE_HEADER pHeader, DWORD dwOffset)
{
return (HASH_CACHEFILE_ENTRY *)((LPBYTE)pHeader + dwOffset);
}
static inline BOOL URLCache_IsHashEntryValid(LPCURLCACHE_HEADER pHeader, const HASH_CACHEFILE_ENTRY *pHashEntry)
{
/* check pHashEntry located within acceptable bounds in the URL cache mapping */
return ((DWORD)((const BYTE*)pHashEntry - (const BYTE*)pHeader) >= ENTRY_START_OFFSET) &&
((DWORD)((const BYTE*)pHashEntry - (const BYTE*)pHeader) < pHeader->dwFileSize);
}
static BOOL URLCache_FindHash(LPCURLCACHE_HEADER pHeader, LPCSTR lpszUrl, struct _HASH_ENTRY ** ppHashEntry)
{
/* structure of hash table:
* 448 entries divided into 64 blocks
* each block therefore contains a chain of 7 key/offset pairs
* how position in table is calculated:
* 1. the url is hashed in helper function
* 2. the key % HASHTABLE_NUM_ENTRIES is the bucket number
* 3. bucket number * HASHTABLE_BLOCKSIZE is offset of the bucket
*
* note:
* there can be multiple hash tables in the file and the offset to
* the next one is stored in the header of the hash table
*/
DWORD key = URLCache_HashKey(lpszUrl);
DWORD offset = (key & (HASHTABLE_NUM_ENTRIES-1)) * HASHTABLE_BLOCKSIZE;
HASH_CACHEFILE_ENTRY * pHashEntry;
DWORD dwHashTableNumber = 0;
key >>= HASHTABLE_FLAG_BITS;
for (pHashEntry = URLCache_HashEntryFromOffset(pHeader, pHeader->dwOffsetFirstHashTable);
URLCache_IsHashEntryValid(pHeader, pHashEntry);
pHashEntry = URLCache_HashEntryFromOffset(pHeader, pHashEntry->dwAddressNext))
{
int i;
if (pHashEntry->dwHashTableNumber != dwHashTableNumber++)
{
ERR("Error: not right hash table number (%d) expected %d\n", pHashEntry->dwHashTableNumber, dwHashTableNumber);
continue;
}
/* make sure that it is in fact a hash entry */
if (pHashEntry->CacheFileEntry.dwSignature != HASH_SIGNATURE)
{
ERR("Error: not right signature (\"%.4s\") - expected \"HASH\"\n", (LPCSTR)&pHashEntry->CacheFileEntry.dwSignature);
continue;
}
for (i = 0; i < HASHTABLE_BLOCKSIZE; i++)
{
struct _HASH_ENTRY * pHashElement = &pHashEntry->HashTable[offset + i];
if (key == pHashElement->dwHashKey>>HASHTABLE_FLAG_BITS)
{
/* FIXME: we should make sure that this is the right element
* before returning and claiming that it is. We can do this
* by doing a simple compare between the URL we were given
* and the URL stored in the entry. However, this assumes
* we know the format of all the entries stored in the
* hash table */
*ppHashEntry = pHashElement;
return TRUE;
}
}
}
return FALSE;
}
static BOOL URLCache_FindHashW(LPCURLCACHE_HEADER pHeader, LPCWSTR lpszUrl, struct _HASH_ENTRY ** ppHashEntry)
{
LPSTR urlA;
BOOL ret;
urlA = heap_strdupWtoA(lpszUrl);
if (!urlA)
{
SetLastError(ERROR_OUTOFMEMORY);
return FALSE;
}
ret = URLCache_FindHash(pHeader, urlA, ppHashEntry);
heap_free(urlA);
return ret;
}
/***********************************************************************
* URLCache_HashEntrySetFlags (Internal)
*
* Sets special bits in hash key
*
* RETURNS
* nothing
*
*/
static void URLCache_HashEntrySetFlags(struct _HASH_ENTRY * pHashEntry, DWORD dwFlag)
{
pHashEntry->dwHashKey = (pHashEntry->dwHashKey >> HASHTABLE_FLAG_BITS << HASHTABLE_FLAG_BITS) | dwFlag;
}
/***********************************************************************
* URLCache_DeleteEntryFromHash (Internal)
*
* Searches all the hash tables in the index for the given URL and
* then if found deletes the entry.
*
* RETURNS
* TRUE if the entry was found
* FALSE if the entry could not be found
*
*/
static BOOL URLCache_DeleteEntryFromHash(struct _HASH_ENTRY * pHashEntry)
{
pHashEntry->dwHashKey = HASHTABLE_DEL;
return TRUE;
}
/***********************************************************************
* URLCache_AddEntryToHash (Internal)
*
* Searches all the hash tables for a free slot based on the offset
* generated from the hash key. If a free slot is found, the offset and
* key are entered into the hash table.
*
* RETURNS
* ERROR_SUCCESS if the entry was added
* Any other Win32 error code if the entry could not be added
*
*/
static DWORD URLCache_AddEntryToHash(LPURLCACHE_HEADER pHeader, LPCSTR lpszUrl, DWORD dwOffsetEntry, DWORD dwFieldType)
{
/* see URLCache_FindEntryInHash for structure of hash tables */
DWORD key = URLCache_HashKey(lpszUrl);
DWORD offset = (key & (HASHTABLE_NUM_ENTRIES-1)) * HASHTABLE_BLOCKSIZE;
HASH_CACHEFILE_ENTRY * pHashEntry, *pHashPrev = NULL;
DWORD dwHashTableNumber = 0;
DWORD error;
key = ((key >> HASHTABLE_FLAG_BITS) << HASHTABLE_FLAG_BITS) + dwFieldType;
for (pHashEntry = URLCache_HashEntryFromOffset(pHeader, pHeader->dwOffsetFirstHashTable);
URLCache_IsHashEntryValid(pHeader, pHashEntry);
pHashEntry = URLCache_HashEntryFromOffset(pHeader, pHashEntry->dwAddressNext))
{
int i;
pHashPrev = pHashEntry;
if (pHashEntry->dwHashTableNumber != dwHashTableNumber++)
{
ERR("not right hash table number (%d) expected %d\n", pHashEntry->dwHashTableNumber, dwHashTableNumber);
break;
}
/* make sure that it is in fact a hash entry */
if (pHashEntry->CacheFileEntry.dwSignature != HASH_SIGNATURE)
{
ERR("not right signature (\"%.4s\") - expected \"HASH\"\n", (LPCSTR)&pHashEntry->CacheFileEntry.dwSignature);
break;
}
for (i = 0; i < HASHTABLE_BLOCKSIZE; i++)
{
struct _HASH_ENTRY * pHashElement = &pHashEntry->HashTable[offset + i];
if (pHashElement->dwHashKey==HASHTABLE_FREE || pHashElement->dwHashKey==HASHTABLE_DEL) /* if the slot is free */
{
pHashElement->dwHashKey = key;
pHashElement->dwOffsetEntry = dwOffsetEntry;
return ERROR_SUCCESS;
}
}
}
error = URLCache_CreateHashTable(pHeader, pHashPrev, &pHashEntry);
if (error != ERROR_SUCCESS)
return error;
pHashEntry->HashTable[offset].dwHashKey = key;
pHashEntry->HashTable[offset].dwOffsetEntry = dwOffsetEntry;
return ERROR_SUCCESS;
}
/***********************************************************************
* URLCache_CreateHashTable (Internal)
*
* Creates a new hash table in free space and adds it to the chain of existing
* hash tables.
*
* RETURNS
* ERROR_SUCCESS if the hash table was created
* ERROR_DISK_FULL if the hash table could not be created
*
*/
static DWORD URLCache_CreateHashTable(LPURLCACHE_HEADER pHeader, HASH_CACHEFILE_ENTRY *pPrevHash, HASH_CACHEFILE_ENTRY **ppHash)
{
DWORD dwOffset, error;
int i;
if ((error = URLCache_FindFirstFreeEntry(pHeader, 0x20, (CACHEFILE_ENTRY **)ppHash)) != ERROR_SUCCESS)
return error;
dwOffset = (BYTE *)*ppHash - (BYTE *)pHeader;
if (pPrevHash)
pPrevHash->dwAddressNext = dwOffset;
else
pHeader->dwOffsetFirstHashTable = dwOffset;
(*ppHash)->CacheFileEntry.dwSignature = HASH_SIGNATURE;
(*ppHash)->CacheFileEntry.dwBlocksUsed = 0x20;
(*ppHash)->dwAddressNext = 0;
(*ppHash)->dwHashTableNumber = pPrevHash ? pPrevHash->dwHashTableNumber + 1 : 0;
for (i = 0; i < HASHTABLE_SIZE; i++)
{
(*ppHash)->HashTable[i].dwOffsetEntry = HASHTABLE_FREE;
(*ppHash)->HashTable[i].dwHashKey = HASHTABLE_FREE;
}
return ERROR_SUCCESS;
}
/***********************************************************************
* URLCache_EnumHashTables (Internal)
*
* Enumerates the hash tables in a container.
*
* RETURNS
* TRUE if an entry was found
* FALSE if there are no more tables to enumerate.
*
*/
static BOOL URLCache_EnumHashTables(LPCURLCACHE_HEADER pHeader, DWORD *pdwHashTableNumber, HASH_CACHEFILE_ENTRY ** ppHashEntry)
{
for (*ppHashEntry = URLCache_HashEntryFromOffset(pHeader, pHeader->dwOffsetFirstHashTable);
URLCache_IsHashEntryValid(pHeader, *ppHashEntry);
*ppHashEntry = URLCache_HashEntryFromOffset(pHeader, (*ppHashEntry)->dwAddressNext))
{
TRACE("looking at hash table number %d\n", (*ppHashEntry)->dwHashTableNumber);
if ((*ppHashEntry)->dwHashTableNumber != *pdwHashTableNumber)
continue;
/* make sure that it is in fact a hash entry */
if ((*ppHashEntry)->CacheFileEntry.dwSignature != HASH_SIGNATURE)
{
ERR("Error: not right signature (\"%.4s\") - expected \"HASH\"\n", (LPCSTR)&(*ppHashEntry)->CacheFileEntry.dwSignature);
(*pdwHashTableNumber)++;
continue;
}
TRACE("hash table number %d found\n", *pdwHashTableNumber);
return TRUE;
}
return FALSE;
}
/***********************************************************************
* URLCache_EnumHashTableEntries (Internal)
*
* Enumerates entries in a hash table and returns the next non-free entry.
*
* RETURNS
* TRUE if an entry was found
* FALSE if the hash table is empty or there are no more entries to
* enumerate.
*
*/
static BOOL URLCache_EnumHashTableEntries(LPCURLCACHE_HEADER pHeader, const HASH_CACHEFILE_ENTRY * pHashEntry,
DWORD * index, const struct _HASH_ENTRY ** ppHashEntry)
{
for (; *index < HASHTABLE_SIZE ; (*index)++)
{
if (pHashEntry->HashTable[*index].dwHashKey==HASHTABLE_FREE || pHashEntry->HashTable[*index].dwHashKey==HASHTABLE_DEL)
continue;
*ppHashEntry = &pHashEntry->HashTable[*index];
TRACE("entry found %d\n", *index);
return TRUE;
}
TRACE("no more entries (%d)\n", *index);
return FALSE;
}
/***********************************************************************
* URLCache_DeleteCacheDirectory (Internal)
*
* Erase a directory containing an URL cache.
*
* RETURNS
* TRUE success, FALSE failure/aborted.
*
*/
static BOOL URLCache_DeleteCacheDirectory(LPCWSTR lpszPath)
{
DWORD path_len;
WCHAR path[MAX_PATH + 1];
SHFILEOPSTRUCTW shfos;
int ret;
path_len = strlenW(lpszPath);
if (path_len >= MAX_PATH)
return FALSE;
strcpyW(path, lpszPath);
path[path_len + 1] = 0; /* double-NUL-terminate path */
shfos.hwnd = NULL;
shfos.wFunc = FO_DELETE;
shfos.pFrom = path;
shfos.pTo = NULL;
shfos.fFlags = FOF_NOCONFIRMATION;
shfos.fAnyOperationsAborted = FALSE;
ret = SHFileOperationW(&shfos);
if (ret)
ERR("SHFileOperationW on %s returned %i\n", debugstr_w(path), ret);
return !(ret || shfos.fAnyOperationsAborted);
}
/***********************************************************************
* URLCache_IsLocked (Internal)
*
* Checks if entry is locked. Unlocks it if possible.
*/
static BOOL URLCache_IsLocked(struct _HASH_ENTRY *hash_entry, URL_CACHEFILE_ENTRY *url_entry)
{
FILETIME cur_time;
ULARGE_INTEGER acc_time, time;
if ((hash_entry->dwHashKey & ((1<<HASHTABLE_FLAG_BITS)-1)) != HASHTABLE_LOCK)
return FALSE;
GetSystemTimeAsFileTime(&cur_time);
time.u.LowPart = cur_time.dwLowDateTime;
time.u.HighPart = cur_time.dwHighDateTime;
acc_time.u.LowPart = url_entry->LastAccessTime.dwLowDateTime;
acc_time.u.HighPart = url_entry->LastAccessTime.dwHighDateTime;
time.QuadPart -= acc_time.QuadPart;
/* check if entry was locked for at least a day */
if(time.QuadPart > (ULONGLONG)24*60*60*FILETIME_SECOND) {
URLCache_HashEntrySetFlags(hash_entry, HASHTABLE_URL);
url_entry->dwUseCount = 0;
return FALSE;
}
return TRUE;
}
/***********************************************************************
* GetUrlCacheEntryInfoExA (WININET.@)
*
*/
BOOL WINAPI GetUrlCacheEntryInfoExA(
LPCSTR lpszUrl,
LPINTERNET_CACHE_ENTRY_INFOA lpCacheEntryInfo,
LPDWORD lpdwCacheEntryInfoBufSize,
LPSTR lpszReserved,
LPDWORD lpdwReserved,
LPVOID lpReserved,
DWORD dwFlags)
{
LPURLCACHE_HEADER pHeader;
struct _HASH_ENTRY * pHashEntry;
const CACHEFILE_ENTRY * pEntry;
const URL_CACHEFILE_ENTRY * pUrlEntry;
URLCACHECONTAINER * pContainer;
DWORD error;
TRACE("(%s, %p, %p, %p, %p, %p, %x)\n",
debugstr_a(lpszUrl),
lpCacheEntryInfo,
lpdwCacheEntryInfoBufSize,
lpszReserved,
lpdwReserved,
lpReserved,
dwFlags);
if ((lpszReserved != NULL) ||
(lpdwReserved != NULL) ||
(lpReserved != NULL))
{
ERR("Reserved value was not 0\n");
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
if (dwFlags & ~GET_INSTALLED_ENTRY)
FIXME("ignoring unsupported flags: %x\n", dwFlags);
error = URLCacheContainers_FindContainerA(lpszUrl, &pContainer);
if (error != ERROR_SUCCESS)
{
SetLastError(error);
return FALSE;
}
error = URLCacheContainer_OpenIndex(pContainer, MIN_BLOCK_NO);
if (error != ERROR_SUCCESS)
{
SetLastError(error);
return FALSE;
}
if (!(pHeader = URLCacheContainer_LockIndex(pContainer)))
return FALSE;
if (!URLCache_FindHash(pHeader, lpszUrl, &pHashEntry))
{
URLCacheContainer_UnlockIndex(pContainer, pHeader);
WARN("entry %s not found!\n", debugstr_a(lpszUrl));
SetLastError(ERROR_FILE_NOT_FOUND);
return FALSE;
}
pEntry = (const CACHEFILE_ENTRY *)((LPBYTE)pHeader + pHashEntry->dwOffsetEntry);
if (pEntry->dwSignature != URL_SIGNATURE)
{
URLCacheContainer_UnlockIndex(pContainer, pHeader);
FIXME("Trying to retrieve entry of unknown format %s\n", debugstr_an((LPCSTR)&pEntry->dwSignature, sizeof(DWORD)));
SetLastError(ERROR_FILE_NOT_FOUND);
return FALSE;
}
pUrlEntry = (const URL_CACHEFILE_ENTRY *)pEntry;
TRACE("Found URL: %s\n", debugstr_a((LPCSTR)pUrlEntry + pUrlEntry->dwOffsetUrl));
if (pUrlEntry->dwOffsetHeaderInfo)
TRACE("Header info: %s\n", debugstr_a((LPCSTR)pUrlEntry + pUrlEntry->dwOffsetHeaderInfo));
if((dwFlags & GET_INSTALLED_ENTRY) && !(pUrlEntry->CacheEntryType & INSTALLED_CACHE_ENTRY))
{
URLCacheContainer_UnlockIndex(pContainer, pHeader);
SetLastError(ERROR_FILE_NOT_FOUND);
return FALSE;
}
if (lpdwCacheEntryInfoBufSize)
{
if (!lpCacheEntryInfo)
*lpdwCacheEntryInfoBufSize = 0;
error = URLCache_CopyEntry(
pContainer,
pHeader,
lpCacheEntryInfo,
lpdwCacheEntryInfoBufSize,
pUrlEntry,
FALSE /* ANSI */);
if (error != ERROR_SUCCESS)
{
URLCacheContainer_UnlockIndex(pContainer, pHeader);
SetLastError(error);
return FALSE;
}
TRACE("Local File Name: %s\n", debugstr_a((LPCSTR)pUrlEntry + pUrlEntry->dwOffsetLocalName));
}
URLCacheContainer_UnlockIndex(pContainer, pHeader);
return TRUE;
}
/***********************************************************************
* GetUrlCacheEntryInfoA (WININET.@)
*
*/
BOOL WINAPI GetUrlCacheEntryInfoA(
IN LPCSTR lpszUrlName,
IN LPINTERNET_CACHE_ENTRY_INFOA lpCacheEntryInfo,
IN OUT LPDWORD lpdwCacheEntryInfoBufferSize
)
{
return GetUrlCacheEntryInfoExA(lpszUrlName, lpCacheEntryInfo,
lpdwCacheEntryInfoBufferSize, NULL, NULL, NULL, 0);
}
/***********************************************************************
* GetUrlCacheEntryInfoW (WININET.@)
*
*/
BOOL WINAPI GetUrlCacheEntryInfoW(LPCWSTR lpszUrl,
LPINTERNET_CACHE_ENTRY_INFOW lpCacheEntryInfo,
LPDWORD lpdwCacheEntryInfoBufferSize)
{
return GetUrlCacheEntryInfoExW(lpszUrl, lpCacheEntryInfo,
lpdwCacheEntryInfoBufferSize, NULL, NULL, NULL, 0);
}
/***********************************************************************
* GetUrlCacheEntryInfoExW (WININET.@)
*
*/
BOOL WINAPI GetUrlCacheEntryInfoExW(
LPCWSTR lpszUrl,
LPINTERNET_CACHE_ENTRY_INFOW lpCacheEntryInfo,
LPDWORD lpdwCacheEntryInfoBufSize,
LPWSTR lpszReserved,
LPDWORD lpdwReserved,
LPVOID lpReserved,
DWORD dwFlags)
{
LPURLCACHE_HEADER pHeader;
struct _HASH_ENTRY * pHashEntry;
const CACHEFILE_ENTRY * pEntry;
const URL_CACHEFILE_ENTRY * pUrlEntry;
URLCACHECONTAINER * pContainer;
DWORD error;
TRACE("(%s, %p, %p, %p, %p, %p, %x)\n",
debugstr_w(lpszUrl),
lpCacheEntryInfo,
lpdwCacheEntryInfoBufSize,
lpszReserved,
lpdwReserved,
lpReserved,
dwFlags);
/* Ignore GET_INSTALLED_ENTRY flag in unicode version of function */
dwFlags &= ~GET_INSTALLED_ENTRY;
if ((lpszReserved != NULL) ||
(lpdwReserved != NULL) ||
(lpReserved != NULL))
{
ERR("Reserved value was not 0\n");
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
if (dwFlags)
FIXME("ignoring unsupported flags: %x\n", dwFlags);
error = URLCacheContainers_FindContainerW(lpszUrl, &pContainer);
if (error != ERROR_SUCCESS)
{
SetLastError(error);
return FALSE;
}
error = URLCacheContainer_OpenIndex(pContainer, MIN_BLOCK_NO);
if (error != ERROR_SUCCESS)
{
SetLastError(error);
return FALSE;
}
if (!(pHeader = URLCacheContainer_LockIndex(pContainer)))
return FALSE;
if (!URLCache_FindHashW(pHeader, lpszUrl, &pHashEntry))
{
URLCacheContainer_UnlockIndex(pContainer, pHeader);
WARN("entry %s not found!\n", debugstr_w(lpszUrl));
SetLastError(ERROR_FILE_NOT_FOUND);
return FALSE;
}
pEntry = (const CACHEFILE_ENTRY *)((LPBYTE)pHeader + pHashEntry->dwOffsetEntry);
if (pEntry->dwSignature != URL_SIGNATURE)
{
URLCacheContainer_UnlockIndex(pContainer, pHeader);
FIXME("Trying to retrieve entry of unknown format %s\n", debugstr_an((LPCSTR)&pEntry->dwSignature, sizeof(DWORD)));
SetLastError(ERROR_FILE_NOT_FOUND);
return FALSE;
}
pUrlEntry = (const URL_CACHEFILE_ENTRY *)pEntry;
TRACE("Found URL: %s\n", debugstr_a((LPCSTR)pUrlEntry + pUrlEntry->dwOffsetUrl));
TRACE("Header info: %s\n", debugstr_a((LPCSTR)pUrlEntry + pUrlEntry->dwOffsetHeaderInfo));
if (lpdwCacheEntryInfoBufSize)
{
if (!lpCacheEntryInfo)
*lpdwCacheEntryInfoBufSize = 0;
error = URLCache_CopyEntry(
pContainer,
pHeader,
(LPINTERNET_CACHE_ENTRY_INFOA)lpCacheEntryInfo,
lpdwCacheEntryInfoBufSize,
pUrlEntry,
TRUE /* UNICODE */);
if (error != ERROR_SUCCESS)
{
URLCacheContainer_UnlockIndex(pContainer, pHeader);
SetLastError(error);
return FALSE;
}
TRACE("Local File Name: %s\n", debugstr_a((LPCSTR)pUrlEntry + pUrlEntry->dwOffsetLocalName));
}
URLCacheContainer_UnlockIndex(pContainer, pHeader);
return TRUE;
}
/***********************************************************************
* SetUrlCacheEntryInfoA (WININET.@)
*/
BOOL WINAPI SetUrlCacheEntryInfoA(
LPCSTR lpszUrlName,
LPINTERNET_CACHE_ENTRY_INFOA lpCacheEntryInfo,
DWORD dwFieldControl)
{
LPURLCACHE_HEADER pHeader;
struct _HASH_ENTRY * pHashEntry;
CACHEFILE_ENTRY * pEntry;
URLCACHECONTAINER * pContainer;
DWORD error;
TRACE("(%s, %p, 0x%08x)\n", debugstr_a(lpszUrlName), lpCacheEntryInfo, dwFieldControl);
error = URLCacheContainers_FindContainerA(lpszUrlName, &pContainer);
if (error != ERROR_SUCCESS)
{
SetLastError(error);
return FALSE;
}
error = URLCacheContainer_OpenIndex(pContainer, MIN_BLOCK_NO);
if (error != ERROR_SUCCESS)
{
SetLastError(error);
return FALSE;
}
if (!(pHeader = URLCacheContainer_LockIndex(pContainer)))
return FALSE;
if (!URLCache_FindHash(pHeader, lpszUrlName, &pHashEntry))
{
URLCacheContainer_UnlockIndex(pContainer, pHeader);
WARN("entry %s not found!\n", debugstr_a(lpszUrlName));
SetLastError(ERROR_FILE_NOT_FOUND);
return FALSE;
}
pEntry = (CACHEFILE_ENTRY *)((LPBYTE)pHeader + pHashEntry->dwOffsetEntry);
if (pEntry->dwSignature != URL_SIGNATURE)
{
URLCacheContainer_UnlockIndex(pContainer, pHeader);
FIXME("Trying to retrieve entry of unknown format %s\n", debugstr_an((LPSTR)&pEntry->dwSignature, sizeof(DWORD)));
SetLastError(ERROR_FILE_NOT_FOUND);
return FALSE;
}
URLCache_SetEntryInfo(
(URL_CACHEFILE_ENTRY *)pEntry,
(const INTERNET_CACHE_ENTRY_INFOW *)lpCacheEntryInfo,
dwFieldControl);
URLCacheContainer_UnlockIndex(pContainer, pHeader);
return TRUE;
}
/***********************************************************************
* SetUrlCacheEntryInfoW (WININET.@)
*/
BOOL WINAPI SetUrlCacheEntryInfoW(LPCWSTR lpszUrl, LPINTERNET_CACHE_ENTRY_INFOW lpCacheEntryInfo, DWORD dwFieldControl)
{
LPURLCACHE_HEADER pHeader;
struct _HASH_ENTRY * pHashEntry;
CACHEFILE_ENTRY * pEntry;
URLCACHECONTAINER * pContainer;
DWORD error;
TRACE("(%s, %p, 0x%08x)\n", debugstr_w(lpszUrl), lpCacheEntryInfo, dwFieldControl);
error = URLCacheContainers_FindContainerW(lpszUrl, &pContainer);
if (error != ERROR_SUCCESS)
{
SetLastError(error);
return FALSE;
}
error = URLCacheContainer_OpenIndex(pContainer, MIN_BLOCK_NO);
if (error != ERROR_SUCCESS)
{
SetLastError(error);
return FALSE;
}
if (!(pHeader = URLCacheContainer_LockIndex(pContainer)))
return FALSE;
if (!URLCache_FindHashW(pHeader, lpszUrl, &pHashEntry))
{
URLCacheContainer_UnlockIndex(pContainer, pHeader);
WARN("entry %s not found!\n", debugstr_w(lpszUrl));
SetLastError(ERROR_FILE_NOT_FOUND);
return FALSE;
}
pEntry = (CACHEFILE_ENTRY *)((LPBYTE)pHeader + pHashEntry->dwOffsetEntry);
if (pEntry->dwSignature != URL_SIGNATURE)
{
URLCacheContainer_UnlockIndex(pContainer, pHeader);
FIXME("Trying to retrieve entry of unknown format %s\n", debugstr_an((LPSTR)&pEntry->dwSignature, sizeof(DWORD)));
SetLastError(ERROR_FILE_NOT_FOUND);
return FALSE;
}
URLCache_SetEntryInfo(
(URL_CACHEFILE_ENTRY *)pEntry,
lpCacheEntryInfo,
dwFieldControl);
URLCacheContainer_UnlockIndex(pContainer, pHeader);
return TRUE;
}
/***********************************************************************
* RetrieveUrlCacheEntryFileA (WININET.@)
*
*/
BOOL WINAPI RetrieveUrlCacheEntryFileA(
IN LPCSTR lpszUrlName,
OUT LPINTERNET_CACHE_ENTRY_INFOA lpCacheEntryInfo,
IN OUT LPDWORD lpdwCacheEntryInfoBufferSize,
IN DWORD dwReserved
)
{
LPURLCACHE_HEADER pHeader;
struct _HASH_ENTRY * pHashEntry;
CACHEFILE_ENTRY * pEntry;
URL_CACHEFILE_ENTRY * pUrlEntry;
URLCACHECONTAINER * pContainer;
DWORD error;
TRACE("(%s, %p, %p, 0x%08x)\n",
debugstr_a(lpszUrlName),
lpCacheEntryInfo,
lpdwCacheEntryInfoBufferSize,
dwReserved);
if (!lpszUrlName || !lpdwCacheEntryInfoBufferSize ||
(!lpCacheEntryInfo && *lpdwCacheEntryInfoBufferSize))
{
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
error = URLCacheContainers_FindContainerA(lpszUrlName, &pContainer);
if (error != ERROR_SUCCESS)
{
SetLastError(error);
return FALSE;
}
error = URLCacheContainer_OpenIndex(pContainer, MIN_BLOCK_NO);
if (error != ERROR_SUCCESS)
{
SetLastError(error);
return FALSE;
}
if (!(pHeader = URLCacheContainer_LockIndex(pContainer)))
return FALSE;
if (!URLCache_FindHash(pHeader, lpszUrlName, &pHashEntry))
{
URLCacheContainer_UnlockIndex(pContainer, pHeader);
TRACE("entry %s not found!\n", lpszUrlName);
SetLastError(ERROR_FILE_NOT_FOUND);
return FALSE;
}
pEntry = (CACHEFILE_ENTRY *)((LPBYTE)pHeader + pHashEntry->dwOffsetEntry);
if (pEntry->dwSignature != URL_SIGNATURE)
{
URLCacheContainer_UnlockIndex(pContainer, pHeader);
FIXME("Trying to retrieve entry of unknown format %s\n", debugstr_an((LPSTR)&pEntry->dwSignature, sizeof(DWORD)));
SetLastError(ERROR_FILE_NOT_FOUND);
return FALSE;
}
pUrlEntry = (URL_CACHEFILE_ENTRY *)pEntry;
if (!pUrlEntry->dwOffsetLocalName)
{
URLCacheContainer_UnlockIndex(pContainer, pHeader);
SetLastError(ERROR_INVALID_DATA);
return FALSE;
}
TRACE("Found URL: %s\n", (LPSTR)pUrlEntry + pUrlEntry->dwOffsetUrl);
TRACE("Header info: %s\n", (LPBYTE)pUrlEntry + pUrlEntry->dwOffsetHeaderInfo);
error = URLCache_CopyEntry(pContainer, pHeader, lpCacheEntryInfo,
lpdwCacheEntryInfoBufferSize, pUrlEntry,
FALSE);
if (error != ERROR_SUCCESS)
{
URLCacheContainer_UnlockIndex(pContainer, pHeader);
SetLastError(error);
return FALSE;
}
TRACE("Local File Name: %s\n", debugstr_a((LPCSTR)pUrlEntry + pUrlEntry->dwOffsetLocalName));
pUrlEntry->dwHitRate++;
pUrlEntry->dwUseCount++;
URLCache_HashEntrySetFlags(pHashEntry, HASHTABLE_LOCK);
GetSystemTimeAsFileTime(&pUrlEntry->LastAccessTime);
URLCacheContainer_UnlockIndex(pContainer, pHeader);
return TRUE;
}
/***********************************************************************
* RetrieveUrlCacheEntryFileW (WININET.@)
*
*/
BOOL WINAPI RetrieveUrlCacheEntryFileW(
IN LPCWSTR lpszUrlName,
OUT LPINTERNET_CACHE_ENTRY_INFOW lpCacheEntryInfo,
IN OUT LPDWORD lpdwCacheEntryInfoBufferSize,
IN DWORD dwReserved
)
{
LPURLCACHE_HEADER pHeader;
struct _HASH_ENTRY * pHashEntry;
CACHEFILE_ENTRY * pEntry;
URL_CACHEFILE_ENTRY * pUrlEntry;
URLCACHECONTAINER * pContainer;
DWORD error;
TRACE("(%s, %p, %p, 0x%08x)\n",
debugstr_w(lpszUrlName),
lpCacheEntryInfo,
lpdwCacheEntryInfoBufferSize,
dwReserved);
if (!lpszUrlName || !lpdwCacheEntryInfoBufferSize ||
(!lpCacheEntryInfo && *lpdwCacheEntryInfoBufferSize))
{
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
error = URLCacheContainers_FindContainerW(lpszUrlName, &pContainer);
if (error != ERROR_SUCCESS)
{
SetLastError(error);
return FALSE;
}
error = URLCacheContainer_OpenIndex(pContainer, MIN_BLOCK_NO);
if (error != ERROR_SUCCESS)
{
SetLastError(error);
return FALSE;
}
if (!(pHeader = URLCacheContainer_LockIndex(pContainer)))
return FALSE;
if (!URLCache_FindHashW(pHeader, lpszUrlName, &pHashEntry))
{
URLCacheContainer_UnlockIndex(pContainer, pHeader);
TRACE("entry %s not found!\n", debugstr_w(lpszUrlName));
SetLastError(ERROR_FILE_NOT_FOUND);
return FALSE;
}
pEntry = (CACHEFILE_ENTRY *)((LPBYTE)pHeader + pHashEntry->dwOffsetEntry);
if (pEntry->dwSignature != URL_SIGNATURE)
{
URLCacheContainer_UnlockIndex(pContainer, pHeader);
FIXME("Trying to retrieve entry of unknown format %s\n", debugstr_an((LPSTR)&pEntry->dwSignature, sizeof(DWORD)));
SetLastError(ERROR_FILE_NOT_FOUND);
return FALSE;
}
pUrlEntry = (URL_CACHEFILE_ENTRY *)pEntry;
if (!pUrlEntry->dwOffsetLocalName)
{
URLCacheContainer_UnlockIndex(pContainer, pHeader);
SetLastError(ERROR_INVALID_DATA);
return FALSE;
}
TRACE("Found URL: %s\n", (LPSTR)pUrlEntry + pUrlEntry->dwOffsetUrl);
TRACE("Header info: %s\n", (LPBYTE)pUrlEntry + pUrlEntry->dwOffsetHeaderInfo);
error = URLCache_CopyEntry(
pContainer,
pHeader,
(LPINTERNET_CACHE_ENTRY_INFOA)lpCacheEntryInfo,
lpdwCacheEntryInfoBufferSize,
pUrlEntry,
TRUE /* UNICODE */);
if (error != ERROR_SUCCESS)
{
URLCacheContainer_UnlockIndex(pContainer, pHeader);
SetLastError(error);
return FALSE;
}
TRACE("Local File Name: %s\n", debugstr_a((LPCSTR)pUrlEntry + pUrlEntry->dwOffsetLocalName));
pUrlEntry->dwHitRate++;
pUrlEntry->dwUseCount++;
URLCache_HashEntrySetFlags(pHashEntry, HASHTABLE_LOCK);
GetSystemTimeAsFileTime(&pUrlEntry->LastAccessTime);
URLCacheContainer_UnlockIndex(pContainer, pHeader);
return TRUE;
}
static BOOL DeleteUrlCacheEntryInternal(const URLCACHECONTAINER * pContainer,
LPURLCACHE_HEADER pHeader, struct _HASH_ENTRY *pHashEntry)
{
CACHEFILE_ENTRY * pEntry;
URL_CACHEFILE_ENTRY * pUrlEntry;
pEntry = (CACHEFILE_ENTRY *)((LPBYTE)pHeader + pHashEntry->dwOffsetEntry);
if (pEntry->dwSignature != URL_SIGNATURE)
{
FIXME("Trying to delete entry of unknown format %s\n",
debugstr_an((LPCSTR)&pEntry->dwSignature, sizeof(DWORD)));
SetLastError(ERROR_FILE_NOT_FOUND);
return FALSE;
}
pUrlEntry = (URL_CACHEFILE_ENTRY *)pEntry;
if(URLCache_IsLocked(pHashEntry, pUrlEntry))
{
TRACE("Trying to delete locked entry\n");
pUrlEntry->CacheEntryType |= PENDING_DELETE_CACHE_ENTRY;
SetLastError(ERROR_SHARING_VIOLATION);
return FALSE;
}
if(!URLCache_DeleteFile(pContainer, pHeader, pUrlEntry))
{
URLCache_DeleteEntry(pHeader, pEntry);
}
else
{
/* Add entry to leaked files list */
pUrlEntry->CacheFileEntry.dwSignature = LEAK_SIGNATURE;
pUrlEntry->dwExemptDelta = pHeader->options[CACHE_HEADER_DATA_ROOT_LEAK_OFFSET];
pHeader->options[CACHE_HEADER_DATA_ROOT_LEAK_OFFSET] = pHashEntry->dwOffsetEntry;
}
URLCache_DeleteEntryFromHash(pHashEntry);
return TRUE;
}
static HANDLE free_cache_running;
static HANDLE dll_unload_event;
static DWORD WINAPI handle_full_cache_worker(void *param)
{
FreeUrlCacheSpaceW(NULL, 20, 0);
ReleaseSemaphore(free_cache_running, 1, NULL);
return 0;
}
static void handle_full_cache(void)
{
if(WaitForSingleObject(free_cache_running, 0) == WAIT_OBJECT_0) {
if(!QueueUserWorkItem(handle_full_cache_worker, NULL, 0))
ReleaseSemaphore(free_cache_running, 1, NULL);
}
}
/* Enumerates entries in cache, allows cache unlocking between calls. */
static BOOL urlcache_next_entry(URLCACHE_HEADER *header, DWORD *hash_table_off, DWORD *hash_table_entry,
struct _HASH_ENTRY **hash_entry, CACHEFILE_ENTRY **entry)
{
HASH_CACHEFILE_ENTRY *hashtable_entry;
*hash_entry = NULL;
*entry = NULL;
if(!*hash_table_off) {
*hash_table_off = header->dwOffsetFirstHashTable;
*hash_table_entry = 0;
hashtable_entry = URLCache_HashEntryFromOffset(header, *hash_table_off);
}else {
if(*hash_table_off >= header->dwFileSize) {
*hash_table_off = 0;
return FALSE;
}
hashtable_entry = URLCache_HashEntryFromOffset(header, *hash_table_off);
}
if(hashtable_entry->CacheFileEntry.dwSignature != HASH_SIGNATURE) {
*hash_table_off = 0;
return FALSE;
}
while(1) {
if(*hash_table_entry >= HASHTABLE_SIZE) {
*hash_table_off = hashtable_entry->dwAddressNext;
if(!*hash_table_off) {
*hash_table_off = 0;
return FALSE;
}
hashtable_entry = URLCache_HashEntryFromOffset(header, *hash_table_off);
*hash_table_entry = 0;
}
if(hashtable_entry->HashTable[*hash_table_entry].dwHashKey != HASHTABLE_DEL &&
hashtable_entry->HashTable[*hash_table_entry].dwHashKey != HASHTABLE_FREE) {
*hash_entry = &hashtable_entry->HashTable[*hash_table_entry];
*entry = (CACHEFILE_ENTRY*)((LPBYTE)header + hashtable_entry->HashTable[*hash_table_entry].dwOffsetEntry);
(*hash_table_entry)++;
return TRUE;
}
(*hash_table_entry)++;
}
*hash_table_off = 0;
return FALSE;
}
/* Rates an urlcache entry to determine if it can be deleted.
*
* Score 0 means that entry can safely be removed, the bigger rating
* the smaller chance of entry being removed.
* DWORD_MAX means that entry can't be deleted at all.
*
* Rating system is currently not fully compatible with native implementation.
*/
static DWORD urlcache_rate_entry(URL_CACHEFILE_ENTRY *url_entry, FILETIME *cur_time)
{
ULARGE_INTEGER time, access_time;
DWORD rating;
access_time.u.LowPart = url_entry->LastAccessTime.dwLowDateTime;
access_time.u.HighPart = url_entry->LastAccessTime.dwHighDateTime;
time.u.LowPart = cur_time->dwLowDateTime;
time.u.HighPart = cur_time->dwHighDateTime;
/* Don't touch entries that were added less than 10 minutes ago */
if(time.QuadPart < access_time.QuadPart + (ULONGLONG)10*60*FILETIME_SECOND)
return -1;
if(url_entry->CacheEntryType & STICKY_CACHE_ENTRY)
if(time.QuadPart < access_time.QuadPart + (ULONGLONG)url_entry->dwExemptDelta*FILETIME_SECOND)
return -1;
time.QuadPart = (time.QuadPart-access_time.QuadPart)/FILETIME_SECOND;
rating = 400*60*60*24/(60*60*24+time.QuadPart);
if(url_entry->dwHitRate > 100)
rating += 100;
else
rating += url_entry->dwHitRate;
return rating;
}
static int dword_cmp(const void *p1, const void *p2)
{
return *(const DWORD*)p1 - *(const DWORD*)p2;
}
/***********************************************************************
* FreeUrlCacheSpaceW (WININET.@)
*
* Frees up some cache.
*
* PARAMETERS
* cache_path [I] Which volume to free up from, or NULL if you don't care.
* size [I] How many percents of the cache should be free.
* filter [I] Which entries can't be deleted (CacheEntryType)
*
* RETURNS
* TRUE success. FALSE failure.
*
* IMPLEMENTATION
* This implementation just retrieves the path of the cache directory, and
* deletes its contents from the filesystem. The correct approach would
* probably be to implement and use {FindFirst,FindNext,Delete}UrlCacheGroup().
*/
BOOL WINAPI FreeUrlCacheSpaceW(LPCWSTR cache_path, DWORD size, DWORD filter)
{
URLCACHECONTAINER *container;
DWORD path_len, err;
TRACE("(%s, %x, %x)\n", debugstr_w(cache_path), size, filter);
if(size<1 || size>100) {
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
if(cache_path) {
path_len = strlenW(cache_path);
if(cache_path[path_len-1] == '\\')
path_len--;
}else {
path_len = 0;
}
if(size==100 && !filter) {
LIST_FOR_EACH_ENTRY(container, &UrlContainers, URLCACHECONTAINER, entry)
{
/* When cache_path==NULL only clean Temporary Internet Files */
if((!path_len && container->cache_prefix[0]==0) ||
(path_len && !strncmpiW(container->path, cache_path, path_len) &&
(container->path[path_len]=='\0' || container->path[path_len]=='\\')))
{
BOOL ret_del;
WaitForSingleObject(container->hMutex, INFINITE);
/* unlock, delete, recreate and lock cache */
URLCacheContainer_CloseIndex(container);
ret_del = URLCache_DeleteCacheDirectory(container->path);
err = URLCacheContainer_OpenIndex(container, MIN_BLOCK_NO);
ReleaseMutex(container->hMutex);
if(!ret_del || (err != ERROR_SUCCESS))
return FALSE;
}
}
return TRUE;
}
LIST_FOR_EACH_ENTRY(container, &UrlContainers, URLCACHECONTAINER, entry)
{
URLCACHE_HEADER *header;
struct _HASH_ENTRY *hash_entry;
CACHEFILE_ENTRY *entry;
URL_CACHEFILE_ENTRY *url_entry;
ULONGLONG desired_size, cur_size;
DWORD delete_factor, hash_table_off, hash_table_entry;
DWORD rate[100], rate_no;
FILETIME cur_time;
if((path_len || container->cache_prefix[0]!=0) &&
(!path_len || strncmpiW(container->path, cache_path, path_len) ||
(container->path[path_len]!='\0' && container->path[path_len]!='\\')))
continue;
err = URLCacheContainer_OpenIndex(container, MIN_BLOCK_NO);
if(err != ERROR_SUCCESS)
continue;
header = URLCacheContainer_LockIndex(container);
if(!header)
continue;
urlcache_clean_leaked_entries(container, header);
desired_size = header->CacheLimit.QuadPart*(100-size)/100;
cur_size = header->CacheUsage.QuadPart+header->ExemptUsage.QuadPart;
if(cur_size <= desired_size)
delete_factor = 0;
else
delete_factor = (cur_size-desired_size)*100/cur_size;
if(!delete_factor) {
URLCacheContainer_UnlockIndex(container, header);
continue;
}
hash_table_off = 0;
hash_table_entry = 0;
rate_no = 0;
GetSystemTimeAsFileTime(&cur_time);
while(rate_no<sizeof(rate)/sizeof(*rate) &&
urlcache_next_entry(header, &hash_table_off, &hash_table_entry, &hash_entry, &entry)) {
if(entry->dwSignature != URL_SIGNATURE) {
WARN("only url entries are currently supported\n");
continue;
}
url_entry = (URL_CACHEFILE_ENTRY*)entry;
if(url_entry->CacheEntryType & filter)
continue;
rate[rate_no] = urlcache_rate_entry(url_entry, &cur_time);
if(rate[rate_no] != -1)
rate_no++;
}
if(!rate_no) {
TRACE("nothing to delete\n");
URLCacheContainer_UnlockIndex(container, header);
continue;
}
qsort(rate, rate_no, sizeof(DWORD), dword_cmp);
delete_factor = delete_factor*rate_no/100;
delete_factor = rate[delete_factor];
TRACE("deleting files with rating %d or less\n", delete_factor);
hash_table_off = 0;
while(urlcache_next_entry(header, &hash_table_off, &hash_table_entry, &hash_entry, &entry)) {
if(entry->dwSignature != URL_SIGNATURE)
continue;
url_entry = (URL_CACHEFILE_ENTRY*)entry;
if(url_entry->CacheEntryType & filter)
continue;
if(urlcache_rate_entry(url_entry, &cur_time) <= delete_factor) {
TRACE("deleting file: %s\n", (char*)url_entry+url_entry->dwOffsetLocalName);
DeleteUrlCacheEntryInternal(container, header, hash_entry);
if(header->CacheUsage.QuadPart+header->ExemptUsage.QuadPart <= desired_size)
break;
/* Allow other threads to use cache while cleaning */
URLCacheContainer_UnlockIndex(container, header);
if(WaitForSingleObject(dll_unload_event, 0) == WAIT_OBJECT_0) {
TRACE("got dll_unload_event - finishing\n");
return TRUE;
}
Sleep(0);
header = URLCacheContainer_LockIndex(container);
}
}
TRACE("cache size after cleaning 0x%s/0x%s\n",
wine_dbgstr_longlong(header->CacheUsage.QuadPart+header->ExemptUsage.QuadPart),
wine_dbgstr_longlong(header->CacheLimit.QuadPart));
URLCacheContainer_UnlockIndex(container, header);
}
return TRUE;
}
/***********************************************************************
* FreeUrlCacheSpaceA (WININET.@)
*
* See FreeUrlCacheSpaceW.
*/
BOOL WINAPI FreeUrlCacheSpaceA(LPCSTR lpszCachePath, DWORD dwSize, DWORD dwFilter)
{
BOOL ret = FALSE;
LPWSTR path = heap_strdupAtoW(lpszCachePath);
if (lpszCachePath == NULL || path != NULL)
ret = FreeUrlCacheSpaceW(path, dwSize, dwFilter);
heap_free(path);
return ret;
}
/***********************************************************************
* UnlockUrlCacheEntryFileA (WININET.@)
*
*/
BOOL WINAPI UnlockUrlCacheEntryFileA(
IN LPCSTR lpszUrlName,
IN DWORD dwReserved
)
{
LPURLCACHE_HEADER pHeader;
struct _HASH_ENTRY * pHashEntry;
CACHEFILE_ENTRY * pEntry;
URL_CACHEFILE_ENTRY * pUrlEntry;
URLCACHECONTAINER * pContainer;
DWORD error;
TRACE("(%s, 0x%08x)\n", debugstr_a(lpszUrlName), dwReserved);
if (dwReserved)
{
ERR("dwReserved != 0\n");
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
error = URLCacheContainers_FindContainerA(lpszUrlName, &pContainer);
if (error != ERROR_SUCCESS)
{
SetLastError(error);
return FALSE;
}
error = URLCacheContainer_OpenIndex(pContainer, MIN_BLOCK_NO);
if (error != ERROR_SUCCESS)
{
SetLastError(error);
return FALSE;
}
if (!(pHeader = URLCacheContainer_LockIndex(pContainer)))
return FALSE;
if (!URLCache_FindHash(pHeader, lpszUrlName, &pHashEntry))
{
URLCacheContainer_UnlockIndex(pContainer, pHeader);
TRACE("entry %s not found!\n", lpszUrlName);
SetLastError(ERROR_FILE_NOT_FOUND);
return FALSE;
}
pEntry = (CACHEFILE_ENTRY *)((LPBYTE)pHeader + pHashEntry->dwOffsetEntry);
if (pEntry->dwSignature != URL_SIGNATURE)
{
URLCacheContainer_UnlockIndex(pContainer, pHeader);
FIXME("Trying to retrieve entry of unknown format %s\n", debugstr_an((LPSTR)&pEntry->dwSignature, sizeof(DWORD)));
SetLastError(ERROR_FILE_NOT_FOUND);
return FALSE;
}
pUrlEntry = (URL_CACHEFILE_ENTRY *)pEntry;
if (pUrlEntry->dwUseCount == 0)
{
URLCacheContainer_UnlockIndex(pContainer, pHeader);
return FALSE;
}
pUrlEntry->dwUseCount--;
if (!pUrlEntry->dwUseCount)
{
URLCache_HashEntrySetFlags(pHashEntry, HASHTABLE_URL);
if (pUrlEntry->CacheEntryType & PENDING_DELETE_CACHE_ENTRY)
DeleteUrlCacheEntryInternal(pContainer, pHeader, pHashEntry);
}
URLCacheContainer_UnlockIndex(pContainer, pHeader);
return TRUE;
}
/***********************************************************************
* UnlockUrlCacheEntryFileW (WININET.@)
*
*/
BOOL WINAPI UnlockUrlCacheEntryFileW( LPCWSTR lpszUrlName, DWORD dwReserved )
{
LPURLCACHE_HEADER pHeader;
struct _HASH_ENTRY * pHashEntry;
CACHEFILE_ENTRY * pEntry;
URL_CACHEFILE_ENTRY * pUrlEntry;
URLCACHECONTAINER * pContainer;
DWORD error;
TRACE("(%s, 0x%08x)\n", debugstr_w(lpszUrlName), dwReserved);
if (dwReserved)
{
ERR("dwReserved != 0\n");
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
error = URLCacheContainers_FindContainerW(lpszUrlName, &pContainer);
if (error != ERROR_SUCCESS)
{
SetLastError(error);
return FALSE;
}
error = URLCacheContainer_OpenIndex(pContainer, MIN_BLOCK_NO);
if (error != ERROR_SUCCESS)
{
SetLastError(error);
return FALSE;
}
if (!(pHeader = URLCacheContainer_LockIndex(pContainer)))
return FALSE;
if (!URLCache_FindHashW(pHeader, lpszUrlName, &pHashEntry))
{
URLCacheContainer_UnlockIndex(pContainer, pHeader);
TRACE("entry %s not found!\n", debugstr_w(lpszUrlName));
SetLastError(ERROR_FILE_NOT_FOUND);
return FALSE;
}
pEntry = (CACHEFILE_ENTRY *)((LPBYTE)pHeader + pHashEntry->dwOffsetEntry);
if (pEntry->dwSignature != URL_SIGNATURE)
{
URLCacheContainer_UnlockIndex(pContainer, pHeader);
FIXME("Trying to retrieve entry of unknown format %s\n", debugstr_an((LPSTR)&pEntry->dwSignature, sizeof(DWORD)));
SetLastError(ERROR_FILE_NOT_FOUND);
return FALSE;
}
pUrlEntry = (URL_CACHEFILE_ENTRY *)pEntry;
if (pUrlEntry->dwUseCount == 0)
{
URLCacheContainer_UnlockIndex(pContainer, pHeader);
return FALSE;
}
pUrlEntry->dwUseCount--;
if (!pUrlEntry->dwUseCount)
URLCache_HashEntrySetFlags(pHashEntry, HASHTABLE_URL);
URLCacheContainer_UnlockIndex(pContainer, pHeader);
return TRUE;
}
/***********************************************************************
* CreateUrlCacheEntryA (WININET.@)
*
*/
BOOL WINAPI CreateUrlCacheEntryA(
IN LPCSTR lpszUrlName,
IN DWORD dwExpectedFileSize,
IN LPCSTR lpszFileExtension,
OUT LPSTR lpszFileName,
IN DWORD dwReserved
)
{
WCHAR *url_name;
WCHAR *file_extension = NULL;
WCHAR file_name[MAX_PATH];
BOOL bSuccess = FALSE;
DWORD dwError = 0;
TRACE("(%s %d %s %p %d)\n", debugstr_a(lpszUrlName), dwExpectedFileSize,
debugstr_a(lpszFileExtension), lpszFileName, dwReserved);
if (lpszUrlName && (url_name = heap_strdupAtoW(lpszUrlName)))
{
if (!lpszFileExtension || (file_extension = heap_strdupAtoW(lpszFileExtension)))
{
if (CreateUrlCacheEntryW(url_name, dwExpectedFileSize, file_extension, file_name, dwReserved))
{
if (WideCharToMultiByte(CP_ACP, 0, file_name, -1, lpszFileName, MAX_PATH, NULL, NULL) < MAX_PATH)
{
bSuccess = TRUE;
}
else
{
dwError = GetLastError();
}
}
else
{
dwError = GetLastError();
}
heap_free(file_extension);
}
else
{
dwError = GetLastError();
}
heap_free(url_name);
if (!bSuccess) SetLastError(dwError);
}
return bSuccess;
}
/***********************************************************************
* CreateUrlCacheEntryW (WININET.@)
*
*/
BOOL WINAPI CreateUrlCacheEntryW(
IN LPCWSTR lpszUrlName,
IN DWORD dwExpectedFileSize,
IN LPCWSTR lpszFileExtension,
OUT LPWSTR lpszFileName,
IN DWORD dwReserved
)
{
URLCACHECONTAINER * pContainer;
LPURLCACHE_HEADER pHeader;
CHAR szFile[MAX_PATH];
WCHAR szExtension[MAX_PATH];
LPCWSTR lpszUrlPart;
LPCWSTR lpszUrlEnd;
LPCWSTR lpszFileNameExtension;
LPWSTR lpszFileNameNoPath;
int i;
int countnoextension;
BYTE CacheDir;
LONG lBufferSize;
BOOL bFound = FALSE;
BOOL generate_name = FALSE;
int count;
DWORD error;
HANDLE hFile;
FILETIME ft;
static const WCHAR szWWW[] = {'w','w','w',0};
TRACE("(%s, 0x%08x, %s, %p, 0x%08x)\n",
debugstr_w(lpszUrlName),
dwExpectedFileSize,
debugstr_w(lpszFileExtension),
lpszFileName,
dwReserved);
if (dwReserved)
FIXME("dwReserved 0x%08x\n", dwReserved);
lpszUrlEnd = lpszUrlName + strlenW(lpszUrlName);
if (((lpszUrlEnd - lpszUrlName) > 1) && (*(lpszUrlEnd - 1) == '/' || *(lpszUrlEnd - 1) == '\\'))
lpszUrlEnd--;
lpszUrlPart = memchrW(lpszUrlName, '?', lpszUrlEnd - lpszUrlName);
if (!lpszUrlPart)
lpszUrlPart = memchrW(lpszUrlName, '#', lpszUrlEnd - lpszUrlName);
if (lpszUrlPart)
lpszUrlEnd = lpszUrlPart;
for (lpszUrlPart = lpszUrlEnd;
(lpszUrlPart >= lpszUrlName);
lpszUrlPart--)
{
if ((*lpszUrlPart == '/' || *lpszUrlPart == '\\') && ((lpszUrlEnd - lpszUrlPart) > 1))
{
bFound = TRUE;
lpszUrlPart++;
break;
}
}
if (!lstrcmpW(lpszUrlPart, szWWW))
{
lpszUrlPart += lstrlenW(szWWW);
}
count = lpszUrlEnd - lpszUrlPart;
if (bFound && (count < MAX_PATH))
{
int len = WideCharToMultiByte(CP_ACP, 0, lpszUrlPart, count, szFile, sizeof(szFile) - 1, NULL, NULL);
if (!len)
return FALSE;
szFile[len] = '\0';
while(len && szFile[--len] == '/') szFile[len] = '\0';
/* FIXME: get rid of illegal characters like \, / and : */
TRACE("File name: %s\n", debugstr_a(szFile));
}
else
{
generate_name = TRUE;
szFile[0] = 0;
}
error = URLCacheContainers_FindContainerW(lpszUrlName, &pContainer);
if (error != ERROR_SUCCESS)
{
SetLastError(error);
return FALSE;
}
error = URLCacheContainer_OpenIndex(pContainer, MIN_BLOCK_NO);
if (error != ERROR_SUCCESS)
{
SetLastError(error);
return FALSE;
}
if (!(pHeader = URLCacheContainer_LockIndex(pContainer)))
return FALSE;
if(pHeader->DirectoryCount)
CacheDir = (BYTE)(rand() % pHeader->DirectoryCount);
else
CacheDir = CACHE_CONTAINER_NO_SUBDIR;
lBufferSize = MAX_PATH * sizeof(WCHAR);
if (!URLCache_LocalFileNameToPathW(pContainer, pHeader, szFile, CacheDir, lpszFileName, &lBufferSize))
{
WARN("Failed to get full path for filename %s, needed %u bytes.\n",
debugstr_a(szFile), lBufferSize);
URLCacheContainer_UnlockIndex(pContainer, pHeader);
return FALSE;
}
URLCacheContainer_UnlockIndex(pContainer, pHeader);
for (lpszFileNameNoPath = lpszFileName + lBufferSize / sizeof(WCHAR) - 2;
lpszFileNameNoPath >= lpszFileName;
--lpszFileNameNoPath)
{
if (*lpszFileNameNoPath == '/' || *lpszFileNameNoPath == '\\')
break;
}
countnoextension = lstrlenW(lpszFileNameNoPath);
lpszFileNameExtension = PathFindExtensionW(lpszFileNameNoPath);
if (lpszFileNameExtension)
countnoextension -= lstrlenW(lpszFileNameExtension);
*szExtension = '\0';
if (lpszFileExtension)
{
szExtension[0] = '.';
lstrcpyW(szExtension+1, lpszFileExtension);
}
for (i = 0; i<255 && !generate_name; i++)
{
static const WCHAR szFormat[] = {'[','%','u',']','%','s',0};
WCHAR *p;
wsprintfW(lpszFileNameNoPath + countnoextension, szFormat, i, szExtension);
for (p = lpszFileNameNoPath + 1; *p; p++)
{
switch (*p)
{
case '<': case '>':
case ':': case '"':
case '/': case '\\':
case '|': case '?':
case '*':
*p = '_'; break;
default: break;
}
}
if (p[-1] == ' ' || p[-1] == '.') p[-1] = '_';
TRACE("Trying: %s\n", debugstr_w(lpszFileName));
hFile = CreateFileW(lpszFileName, GENERIC_READ, 0, NULL, CREATE_NEW, 0, NULL);
if (hFile != INVALID_HANDLE_VALUE)
{
CloseHandle(hFile);
return TRUE;
}
}
/* Try to generate random name */
GetSystemTimeAsFileTime(&ft);
strcpyW(lpszFileNameNoPath+countnoextension+8, szExtension);
for(i=0; i<255; i++)
{
int j;
ULONGLONG n = ft.dwHighDateTime;
n <<= 32;
n += ft.dwLowDateTime;
n ^= (ULONGLONG)i<<48;
for(j=0; j<8; j++)
{
int r = (n % 36);
n /= 37;
lpszFileNameNoPath[countnoextension+j] = (r < 10 ? '0' + r : 'A' + r - 10);
}
TRACE("Trying: %s\n", debugstr_w(lpszFileName));
hFile = CreateFileW(lpszFileName, GENERIC_READ, 0, NULL, CREATE_NEW, 0, NULL);
if (hFile != INVALID_HANDLE_VALUE)
{
CloseHandle(hFile);
return TRUE;
}
}
WARN("Could not find a unique filename\n");
return FALSE;
}
/***********************************************************************
* CommitUrlCacheEntryInternal (Compensates for an MS bug)
*
* The bug we are compensating for is that some drongo at Microsoft
* used lpHeaderInfo to pass binary data to CommitUrlCacheEntryA.
* As a consequence, CommitUrlCacheEntryA has been effectively
* redefined as LPBYTE rather than LPCSTR. But CommitUrlCacheEntryW
* is still defined as LPCWSTR. The result (other than madness) is
* that we always need to store lpHeaderInfo in CP_ACP rather than
* in UTF16, and we need to avoid converting lpHeaderInfo in
* CommitUrlCacheEntryA to UTF16 and then back to CP_ACP, since the
* result will lose data for arbitrary binary data.
*
*/
static BOOL CommitUrlCacheEntryInternal(
IN LPCWSTR lpszUrlName,
IN LPCWSTR lpszLocalFileName,
IN FILETIME ExpireTime,
IN FILETIME LastModifiedTime,
IN DWORD CacheEntryType,
IN LPBYTE lpHeaderInfo,
IN DWORD dwHeaderSize,
IN LPCWSTR lpszFileExtension,
IN LPCWSTR lpszOriginalUrl
)
{
URLCACHECONTAINER * pContainer;
LPURLCACHE_HEADER pHeader;
struct _HASH_ENTRY * pHashEntry;
CACHEFILE_ENTRY * pEntry;
URL_CACHEFILE_ENTRY * pUrlEntry;
DWORD url_entry_offset;
DWORD dwBytesNeeded = DWORD_ALIGN(sizeof(*pUrlEntry));
DWORD dwOffsetLocalFileName = 0;
DWORD dwOffsetHeader = 0;
DWORD dwOffsetFileExtension = 0;
WIN32_FILE_ATTRIBUTE_DATA file_attr;
LARGE_INTEGER file_size;
BYTE cDirectory;
char achFile[MAX_PATH];
LPSTR lpszUrlNameA = NULL;
LPSTR lpszFileExtensionA = NULL;
char *pchLocalFileName = 0;
DWORD hit_rate = 0;
DWORD exempt_delta = 0;
DWORD error;
TRACE("(%s, %s, ..., ..., %x, %p, %d, %s, %s)\n",
debugstr_w(lpszUrlName),
debugstr_w(lpszLocalFileName),
CacheEntryType,
lpHeaderInfo,
dwHeaderSize,
debugstr_w(lpszFileExtension),
debugstr_w(lpszOriginalUrl));
if (CacheEntryType & STICKY_CACHE_ENTRY && !lpszLocalFileName)
{
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
if (lpszOriginalUrl)
WARN(": lpszOriginalUrl ignored\n");
memset(&file_attr, 0, sizeof(file_attr));
if (lpszLocalFileName)
{
if(!GetFileAttributesExW(lpszLocalFileName, GetFileExInfoStandard, &file_attr))
return FALSE;
}
file_size.u.LowPart = file_attr.nFileSizeLow;
file_size.u.HighPart = file_attr.nFileSizeHigh;
error = URLCacheContainers_FindContainerW(lpszUrlName, &pContainer);
if (error != ERROR_SUCCESS)
{
SetLastError(error);
return FALSE;
}
error = URLCacheContainer_OpenIndex(pContainer, MIN_BLOCK_NO);
if (error != ERROR_SUCCESS)
{
SetLastError(error);
return FALSE;
}
if (!(pHeader = URLCacheContainer_LockIndex(pContainer)))
return FALSE;
lpszUrlNameA = heap_strdupWtoA(lpszUrlName);
if (!lpszUrlNameA)
{
error = GetLastError();
goto cleanup;
}
if (lpszFileExtension && !(lpszFileExtensionA = heap_strdupWtoA(lpszFileExtension)))
{
error = GetLastError();
goto cleanup;
}
if (URLCache_FindHash(pHeader, lpszUrlNameA, &pHashEntry))
{
URL_CACHEFILE_ENTRY *pUrlEntry = (URL_CACHEFILE_ENTRY*)((LPBYTE)pHeader + pHashEntry->dwOffsetEntry);
if (URLCache_IsLocked(pHashEntry, pUrlEntry))
{
TRACE("Trying to overwrite locked entry\n");
error = ERROR_SHARING_VIOLATION;
goto cleanup;
}
hit_rate = pUrlEntry->dwHitRate;
exempt_delta = pUrlEntry->dwExemptDelta;
DeleteUrlCacheEntryInternal(pContainer, pHeader, pHashEntry);
}
if (pHeader->DirectoryCount)
cDirectory = 0;
else
cDirectory = CACHE_CONTAINER_NO_SUBDIR;
if (lpszLocalFileName)
{
BOOL bFound = FALSE;
if (strncmpW(lpszLocalFileName, pContainer->path, lstrlenW(pContainer->path)))
{
ERR("path %s must begin with cache content path %s\n", debugstr_w(lpszLocalFileName), debugstr_w(pContainer->path));
error = ERROR_INVALID_PARAMETER;
goto cleanup;
}
/* skip container path prefix */
lpszLocalFileName += lstrlenW(pContainer->path);
WideCharToMultiByte(CP_ACP, 0, lpszLocalFileName, -1, achFile, MAX_PATH, NULL, NULL);
pchLocalFileName = achFile;
if(pHeader->DirectoryCount)
{
for (cDirectory = 0; cDirectory < pHeader->DirectoryCount; cDirectory++)
{
if (!strncmp(pHeader->directory_data[cDirectory].filename, pchLocalFileName, DIR_LENGTH))
{
bFound = TRUE;
break;
}
}
if (!bFound)
{
ERR("cache directory not found in path %s\n", debugstr_w(lpszLocalFileName));
error = ERROR_INVALID_PARAMETER;
goto cleanup;
}
lpszLocalFileName += DIR_LENGTH + 1;
pchLocalFileName += DIR_LENGTH + 1;
}
}
dwBytesNeeded = DWORD_ALIGN(dwBytesNeeded + strlen(lpszUrlNameA) + 1);
if (lpszLocalFileName)
{
dwOffsetLocalFileName = dwBytesNeeded;
dwBytesNeeded = DWORD_ALIGN(dwBytesNeeded + strlen(pchLocalFileName) + 1);
}
if (lpHeaderInfo)
{
dwOffsetHeader = dwBytesNeeded;
dwBytesNeeded = DWORD_ALIGN(dwBytesNeeded + dwHeaderSize);
}
if (lpszFileExtensionA)
{
dwOffsetFileExtension = dwBytesNeeded;
dwBytesNeeded = DWORD_ALIGN(dwBytesNeeded + strlen(lpszFileExtensionA) + 1);
}
/* round up to next block */
if (dwBytesNeeded % BLOCKSIZE)
{
dwBytesNeeded -= dwBytesNeeded % BLOCKSIZE;
dwBytesNeeded += BLOCKSIZE;
}
error = URLCache_FindFirstFreeEntry(pHeader, dwBytesNeeded / BLOCKSIZE, &pEntry);
while (error == ERROR_HANDLE_DISK_FULL)
{
error = URLCacheContainer_CleanIndex(pContainer, &pHeader);
if (error == ERROR_SUCCESS)
error = URLCache_FindFirstFreeEntry(pHeader, dwBytesNeeded / BLOCKSIZE, &pEntry);
}
if (error != ERROR_SUCCESS)
goto cleanup;
/* FindFirstFreeEntry fills in blocks used */
pUrlEntry = (URL_CACHEFILE_ENTRY *)pEntry;
url_entry_offset = (LPBYTE)pUrlEntry - (LPBYTE)pHeader;
pUrlEntry->CacheFileEntry.dwSignature = URL_SIGNATURE;
pUrlEntry->CacheDir = cDirectory;
pUrlEntry->CacheEntryType = CacheEntryType | pContainer->default_entry_type;
pUrlEntry->dwHeaderInfoSize = dwHeaderSize;
if ((CacheEntryType & STICKY_CACHE_ENTRY) && !exempt_delta)
{
/* Sticky entries have a default exempt time of one day */
exempt_delta = 86400;
}
pUrlEntry->dwExemptDelta = exempt_delta;
pUrlEntry->dwHitRate = hit_rate+1;
pUrlEntry->dwOffsetFileExtension = dwOffsetFileExtension;
pUrlEntry->dwOffsetHeaderInfo = dwOffsetHeader;
pUrlEntry->dwOffsetLocalName = dwOffsetLocalFileName;
pUrlEntry->dwOffsetUrl = DWORD_ALIGN(sizeof(*pUrlEntry));
pUrlEntry->size.QuadPart = file_size.QuadPart;
pUrlEntry->dwUseCount = 0;
GetSystemTimeAsFileTime(&pUrlEntry->LastAccessTime);
pUrlEntry->LastModifiedTime = LastModifiedTime;
URLCache_FileTimeToDosDateTime(&pUrlEntry->LastAccessTime, &pUrlEntry->wLastSyncDate, &pUrlEntry->wLastSyncTime);
URLCache_FileTimeToDosDateTime(&ExpireTime, &pUrlEntry->wExpiredDate, &pUrlEntry->wExpiredTime);
URLCache_FileTimeToDosDateTime(&file_attr.ftLastWriteTime, &pUrlEntry->LastWriteDate, &pUrlEntry->LastWriteTime);
/*** Unknowns ***/
pUrlEntry->dwUnknown1 = 0;
pUrlEntry->dwUnknown2 = 0;
pUrlEntry->dwUnknown3 = 0x60;
pUrlEntry->Unknown4 = 0;
pUrlEntry->wUnknown5 = 0x1010;
pUrlEntry->dwUnknown7 = 0;
pUrlEntry->dwUnknown8 = 0;
strcpy((LPSTR)pUrlEntry + pUrlEntry->dwOffsetUrl, lpszUrlNameA);
if (dwOffsetLocalFileName)
strcpy((LPSTR)((LPBYTE)pUrlEntry + dwOffsetLocalFileName), pchLocalFileName);
if (dwOffsetHeader)
memcpy((LPBYTE)pUrlEntry + dwOffsetHeader, lpHeaderInfo, dwHeaderSize);
if (dwOffsetFileExtension)
strcpy((LPSTR)((LPBYTE)pUrlEntry + dwOffsetFileExtension), lpszFileExtensionA);
error = URLCache_AddEntryToHash(pHeader, lpszUrlNameA, url_entry_offset, HASHTABLE_URL);
while (error == ERROR_HANDLE_DISK_FULL)
{
error = URLCacheContainer_CleanIndex(pContainer, &pHeader);
if (error == ERROR_SUCCESS)
{
pUrlEntry = (URL_CACHEFILE_ENTRY *)((LPBYTE)pHeader + url_entry_offset);
error = URLCache_AddEntryToHash(pHeader, lpszUrlNameA,
url_entry_offset, HASHTABLE_URL);
}
}
if (error != ERROR_SUCCESS)
URLCache_DeleteEntry(pHeader, &pUrlEntry->CacheFileEntry);
else
{
if (pUrlEntry->CacheDir < pHeader->DirectoryCount)
pHeader->directory_data[pUrlEntry->CacheDir].dwNumFiles++;
if (CacheEntryType & STICKY_CACHE_ENTRY)
pHeader->ExemptUsage.QuadPart += file_size.QuadPart;
else
pHeader->CacheUsage.QuadPart += file_size.QuadPart;
if (pHeader->CacheUsage.QuadPart + pHeader->ExemptUsage.QuadPart >
pHeader->CacheLimit.QuadPart)
handle_full_cache();
}
cleanup:
URLCacheContainer_UnlockIndex(pContainer, pHeader);
heap_free(lpszUrlNameA);
heap_free(lpszFileExtensionA);
if (error == ERROR_SUCCESS)
return TRUE;
else
{
SetLastError(error);
return FALSE;
}
}
/***********************************************************************
* CommitUrlCacheEntryA (WININET.@)
*
*/
BOOL WINAPI CommitUrlCacheEntryA(
IN LPCSTR lpszUrlName,
IN LPCSTR lpszLocalFileName,
IN FILETIME ExpireTime,
IN FILETIME LastModifiedTime,
IN DWORD CacheEntryType,
IN LPBYTE lpHeaderInfo,
IN DWORD dwHeaderSize,
IN LPCSTR lpszFileExtension,
IN LPCSTR lpszOriginalUrl
)
{
WCHAR *url_name = NULL;
WCHAR *local_file_name = NULL;
WCHAR *original_url = NULL;
WCHAR *file_extension = NULL;
BOOL bSuccess = FALSE;
TRACE("(%s, %s, ..., ..., %x, %p, %d, %s, %s)\n",
debugstr_a(lpszUrlName),
debugstr_a(lpszLocalFileName),
CacheEntryType,
lpHeaderInfo,
dwHeaderSize,
debugstr_a(lpszFileExtension),
debugstr_a(lpszOriginalUrl));
url_name = heap_strdupAtoW(lpszUrlName);
if (!url_name)
goto cleanup;
if (lpszLocalFileName)
{
local_file_name = heap_strdupAtoW(lpszLocalFileName);
if (!local_file_name)
goto cleanup;
}
if (lpszFileExtension)
{
file_extension = heap_strdupAtoW(lpszFileExtension);
if (!file_extension)
goto cleanup;
}
if (lpszOriginalUrl)
{
original_url = heap_strdupAtoW(lpszOriginalUrl);
if (!original_url)
goto cleanup;
}
bSuccess = CommitUrlCacheEntryInternal(url_name, local_file_name, ExpireTime, LastModifiedTime,
CacheEntryType, lpHeaderInfo, dwHeaderSize,
file_extension, original_url);
cleanup:
heap_free(original_url);
heap_free(file_extension);
heap_free(local_file_name);
heap_free(url_name);
return bSuccess;
}
/***********************************************************************
* CommitUrlCacheEntryW (WININET.@)
*
*/
BOOL WINAPI CommitUrlCacheEntryW(
IN LPCWSTR lpszUrlName,
IN LPCWSTR lpszLocalFileName,
IN FILETIME ExpireTime,
IN FILETIME LastModifiedTime,
IN DWORD CacheEntryType,
IN LPWSTR lpHeaderInfo,
IN DWORD dwHeaderSize,
IN LPCWSTR lpszFileExtension,
IN LPCWSTR lpszOriginalUrl
)
{
DWORD dwError = 0;
BOOL bSuccess = FALSE;
DWORD len = 0;
CHAR *header_info = NULL;
TRACE("(%s, %s, ..., ..., %x, %p, %d, %s, %s)\n",
debugstr_w(lpszUrlName),
debugstr_w(lpszLocalFileName),
CacheEntryType,
lpHeaderInfo,
dwHeaderSize,
debugstr_w(lpszFileExtension),
debugstr_w(lpszOriginalUrl));
if (!lpHeaderInfo || (header_info = heap_strdupWtoA(lpHeaderInfo)))
{
if(header_info)
len = strlen(header_info);
if (CommitUrlCacheEntryInternal(lpszUrlName, lpszLocalFileName, ExpireTime, LastModifiedTime,
CacheEntryType, (LPBYTE)header_info, len, lpszFileExtension, lpszOriginalUrl))
{
bSuccess = TRUE;
}
else
{
dwError = GetLastError();
}
if (header_info)
{
heap_free(header_info);
if (!bSuccess)
SetLastError(dwError);
}
}
return bSuccess;
}
/***********************************************************************
* ReadUrlCacheEntryStream (WININET.@)
*
*/
BOOL WINAPI ReadUrlCacheEntryStream(
IN HANDLE hUrlCacheStream,
IN DWORD dwLocation,
IN OUT LPVOID lpBuffer,
IN OUT LPDWORD lpdwLen,
IN DWORD dwReserved
)
{
/* Get handle to file from 'stream' */
STREAM_HANDLE * pStream = (STREAM_HANDLE *)hUrlCacheStream;
if (dwReserved != 0)
{
ERR("dwReserved != 0\n");
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
if (IsBadReadPtr(pStream, sizeof(*pStream)) || IsBadStringPtrA(pStream->lpszUrl, INTERNET_MAX_URL_LENGTH))
{
SetLastError(ERROR_INVALID_HANDLE);
return FALSE;
}
if (SetFilePointer(pStream->hFile, dwLocation, NULL, FILE_CURRENT) == INVALID_SET_FILE_POINTER)
return FALSE;
return ReadFile(pStream->hFile, lpBuffer, *lpdwLen, lpdwLen, NULL);
}
/***********************************************************************
* RetrieveUrlCacheEntryStreamA (WININET.@)
*
*/
HANDLE WINAPI RetrieveUrlCacheEntryStreamA(
IN LPCSTR lpszUrlName,
OUT LPINTERNET_CACHE_ENTRY_INFOA lpCacheEntryInfo,
IN OUT LPDWORD lpdwCacheEntryInfoBufferSize,
IN BOOL fRandomRead,
IN DWORD dwReserved
)
{
/* NOTE: this is not the same as the way that the native
* version allocates 'stream' handles. I did it this way
* as it is much easier and no applications should depend
* on this behaviour. (Native version appears to allocate
* indices into a table)
*/
STREAM_HANDLE * pStream;
HANDLE hFile;
TRACE( "(%s, %p, %p, %x, 0x%08x)\n", debugstr_a(lpszUrlName), lpCacheEntryInfo,
lpdwCacheEntryInfoBufferSize, fRandomRead, dwReserved );
if (!RetrieveUrlCacheEntryFileA(lpszUrlName,
lpCacheEntryInfo,
lpdwCacheEntryInfoBufferSize,
dwReserved))
{
return NULL;
}
hFile = CreateFileA(lpCacheEntryInfo->lpszLocalFileName,
GENERIC_READ,
FILE_SHARE_READ,
NULL,
OPEN_EXISTING,
fRandomRead ? FILE_FLAG_RANDOM_ACCESS : 0,
NULL);
if (hFile == INVALID_HANDLE_VALUE)
return FALSE;
/* allocate handle storage space */
pStream = heap_alloc(sizeof(STREAM_HANDLE) + strlen(lpszUrlName) * sizeof(CHAR));
if (!pStream)
{
CloseHandle(hFile);
SetLastError(ERROR_OUTOFMEMORY);
return FALSE;
}
pStream->hFile = hFile;
strcpy(pStream->lpszUrl, lpszUrlName);
return pStream;
}
/***********************************************************************
* RetrieveUrlCacheEntryStreamW (WININET.@)
*
*/
HANDLE WINAPI RetrieveUrlCacheEntryStreamW(
IN LPCWSTR lpszUrlName,
OUT LPINTERNET_CACHE_ENTRY_INFOW lpCacheEntryInfo,
IN OUT LPDWORD lpdwCacheEntryInfoBufferSize,
IN BOOL fRandomRead,
IN DWORD dwReserved
)
{
DWORD size;
int url_len;
/* NOTE: this is not the same as the way that the native
* version allocates 'stream' handles. I did it this way
* as it is much easier and no applications should depend
* on this behaviour. (Native version appears to allocate
* indices into a table)
*/
STREAM_HANDLE * pStream;
HANDLE hFile;
TRACE( "(%s, %p, %p, %x, 0x%08x)\n", debugstr_w(lpszUrlName), lpCacheEntryInfo,
lpdwCacheEntryInfoBufferSize, fRandomRead, dwReserved );
if (!RetrieveUrlCacheEntryFileW(lpszUrlName,
lpCacheEntryInfo,
lpdwCacheEntryInfoBufferSize,
dwReserved))
{
return NULL;
}
hFile = CreateFileW(lpCacheEntryInfo->lpszLocalFileName,
GENERIC_READ,
FILE_SHARE_READ,
NULL,
OPEN_EXISTING,
fRandomRead ? FILE_FLAG_RANDOM_ACCESS : 0,
NULL);
if (hFile == INVALID_HANDLE_VALUE)
return FALSE;
/* allocate handle storage space */
size = sizeof(STREAM_HANDLE);
url_len = WideCharToMultiByte(CP_ACP, 0, lpszUrlName, -1, NULL, 0, NULL, NULL);
size += url_len;
pStream = heap_alloc(size);
if (!pStream)
{
CloseHandle(hFile);
SetLastError(ERROR_OUTOFMEMORY);
return FALSE;
}
pStream->hFile = hFile;
WideCharToMultiByte(CP_ACP, 0, lpszUrlName, -1, pStream->lpszUrl, url_len, NULL, NULL);
return pStream;
}
/***********************************************************************
* UnlockUrlCacheEntryStream (WININET.@)
*
*/
BOOL WINAPI UnlockUrlCacheEntryStream(
IN HANDLE hUrlCacheStream,
IN DWORD dwReserved
)
{
STREAM_HANDLE * pStream = (STREAM_HANDLE *)hUrlCacheStream;
if (dwReserved != 0)
{
ERR("dwReserved != 0\n");
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
if (IsBadReadPtr(pStream, sizeof(*pStream)) || IsBadStringPtrA(pStream->lpszUrl, INTERNET_MAX_URL_LENGTH))
{
SetLastError(ERROR_INVALID_HANDLE);
return FALSE;
}
if (!UnlockUrlCacheEntryFileA(pStream->lpszUrl, 0))
return FALSE;
CloseHandle(pStream->hFile);
heap_free(pStream);
return TRUE;
}
/***********************************************************************
* DeleteUrlCacheEntryA (WININET.@)
*
*/
BOOL WINAPI DeleteUrlCacheEntryA(LPCSTR lpszUrlName)
{
URLCACHECONTAINER * pContainer;
LPURLCACHE_HEADER pHeader;
struct _HASH_ENTRY * pHashEntry;
DWORD error;
BOOL ret;
TRACE("(%s)\n", debugstr_a(lpszUrlName));
error = URLCacheContainers_FindContainerA(lpszUrlName, &pContainer);
if (error != ERROR_SUCCESS)
{
SetLastError(error);
return FALSE;
}
error = URLCacheContainer_OpenIndex(pContainer, MIN_BLOCK_NO);
if (error != ERROR_SUCCESS)
{
SetLastError(error);
return FALSE;
}
if (!(pHeader = URLCacheContainer_LockIndex(pContainer)))
return FALSE;
if (!URLCache_FindHash(pHeader, lpszUrlName, &pHashEntry))
{
URLCacheContainer_UnlockIndex(pContainer, pHeader);
TRACE("entry %s not found!\n", lpszUrlName);
SetLastError(ERROR_FILE_NOT_FOUND);
return FALSE;
}
ret = DeleteUrlCacheEntryInternal(pContainer, pHeader, pHashEntry);
URLCacheContainer_UnlockIndex(pContainer, pHeader);
return ret;
}
/***********************************************************************
* DeleteUrlCacheEntryW (WININET.@)
*
*/
BOOL WINAPI DeleteUrlCacheEntryW(LPCWSTR lpszUrlName)
{
URLCACHECONTAINER * pContainer;
LPURLCACHE_HEADER pHeader;
struct _HASH_ENTRY * pHashEntry;
LPSTR urlA;
DWORD error;
BOOL ret;
TRACE("(%s)\n", debugstr_w(lpszUrlName));
urlA = heap_strdupWtoA(lpszUrlName);
if (!urlA)
{
SetLastError(ERROR_OUTOFMEMORY);
return FALSE;
}
error = URLCacheContainers_FindContainerW(lpszUrlName, &pContainer);
if (error != ERROR_SUCCESS)
{
heap_free(urlA);
SetLastError(error);
return FALSE;
}
error = URLCacheContainer_OpenIndex(pContainer, MIN_BLOCK_NO);
if (error != ERROR_SUCCESS)
{
heap_free(urlA);
SetLastError(error);
return FALSE;
}
if (!(pHeader = URLCacheContainer_LockIndex(pContainer)))
{
heap_free(urlA);
return FALSE;
}
if (!URLCache_FindHash(pHeader, urlA, &pHashEntry))
{
URLCacheContainer_UnlockIndex(pContainer, pHeader);
TRACE("entry %s not found!\n", debugstr_a(urlA));
heap_free(urlA);
SetLastError(ERROR_FILE_NOT_FOUND);
return FALSE;
}
ret = DeleteUrlCacheEntryInternal(pContainer, pHeader, pHashEntry);
URLCacheContainer_UnlockIndex(pContainer, pHeader);
heap_free(urlA);
return ret;
}
BOOL WINAPI DeleteUrlCacheContainerA(DWORD d1, DWORD d2)
{
FIXME("(0x%08x, 0x%08x) stub\n", d1, d2);
return TRUE;
}
BOOL WINAPI DeleteUrlCacheContainerW(DWORD d1, DWORD d2)
{
FIXME("(0x%08x, 0x%08x) stub\n", d1, d2);
return TRUE;
}
/***********************************************************************
* CreateCacheContainerA (WININET.@)
*/
BOOL WINAPI CreateUrlCacheContainerA(DWORD d1, DWORD d2, DWORD d3, DWORD d4,
DWORD d5, DWORD d6, DWORD d7, DWORD d8)
{
FIXME("(0x%08x, 0x%08x, 0x%08x, 0x%08x, 0x%08x, 0x%08x, 0x%08x, 0x%08x) stub\n",
d1, d2, d3, d4, d5, d6, d7, d8);
return TRUE;
}
/***********************************************************************
* CreateCacheContainerW (WININET.@)
*/
BOOL WINAPI CreateUrlCacheContainerW(DWORD d1, DWORD d2, DWORD d3, DWORD d4,
DWORD d5, DWORD d6, DWORD d7, DWORD d8)
{
FIXME("(0x%08x, 0x%08x, 0x%08x, 0x%08x, 0x%08x, 0x%08x, 0x%08x, 0x%08x) stub\n",
d1, d2, d3, d4, d5, d6, d7, d8);
return TRUE;
}
/***********************************************************************
* FindFirstUrlCacheContainerA (WININET.@)
*/
HANDLE WINAPI FindFirstUrlCacheContainerA( LPVOID p1, LPVOID p2, LPVOID p3, DWORD d1 )
{
FIXME("(%p, %p, %p, 0x%08x) stub\n", p1, p2, p3, d1 );
return NULL;
}
/***********************************************************************
* FindFirstUrlCacheContainerW (WININET.@)
*/
HANDLE WINAPI FindFirstUrlCacheContainerW( LPVOID p1, LPVOID p2, LPVOID p3, DWORD d1 )
{
FIXME("(%p, %p, %p, 0x%08x) stub\n", p1, p2, p3, d1 );
return NULL;
}
/***********************************************************************
* FindNextUrlCacheContainerA (WININET.@)
*/
BOOL WINAPI FindNextUrlCacheContainerA( HANDLE handle, LPVOID p1, LPVOID p2 )
{
FIXME("(%p, %p, %p) stub\n", handle, p1, p2 );
return FALSE;
}
/***********************************************************************
* FindNextUrlCacheContainerW (WININET.@)
*/
BOOL WINAPI FindNextUrlCacheContainerW( HANDLE handle, LPVOID p1, LPVOID p2 )
{
FIXME("(%p, %p, %p) stub\n", handle, p1, p2 );
return FALSE;
}
HANDLE WINAPI FindFirstUrlCacheEntryExA(
LPCSTR lpszUrlSearchPattern,
DWORD dwFlags,
DWORD dwFilter,
GROUPID GroupId,
LPINTERNET_CACHE_ENTRY_INFOA lpFirstCacheEntryInfo,
LPDWORD lpdwFirstCacheEntryInfoBufferSize,
LPVOID lpReserved,
LPDWORD pcbReserved2,
LPVOID lpReserved3
)
{
FIXME("(%s, 0x%08x, 0x%08x, 0x%08x%08x, %p, %p, %p, %p, %p) stub\n", debugstr_a(lpszUrlSearchPattern),
dwFlags, dwFilter, (ULONG)(GroupId >> 32), (ULONG)GroupId, lpFirstCacheEntryInfo,
lpdwFirstCacheEntryInfoBufferSize, lpReserved, pcbReserved2,lpReserved3);
SetLastError(ERROR_FILE_NOT_FOUND);
return NULL;
}
HANDLE WINAPI FindFirstUrlCacheEntryExW(
LPCWSTR lpszUrlSearchPattern,
DWORD dwFlags,
DWORD dwFilter,
GROUPID GroupId,
LPINTERNET_CACHE_ENTRY_INFOW lpFirstCacheEntryInfo,
LPDWORD lpdwFirstCacheEntryInfoBufferSize,
LPVOID lpReserved,
LPDWORD pcbReserved2,
LPVOID lpReserved3
)
{
FIXME("(%s, 0x%08x, 0x%08x, 0x%08x%08x, %p, %p, %p, %p, %p) stub\n", debugstr_w(lpszUrlSearchPattern),
dwFlags, dwFilter, (ULONG)(GroupId >> 32), (ULONG)GroupId, lpFirstCacheEntryInfo,
lpdwFirstCacheEntryInfoBufferSize, lpReserved, pcbReserved2,lpReserved3);
SetLastError(ERROR_FILE_NOT_FOUND);
return NULL;
}
#define URLCACHE_FIND_ENTRY_HANDLE_MAGIC 0xF389ABCD
typedef struct URLCacheFindEntryHandle
{
DWORD dwMagic;
LPWSTR lpszUrlSearchPattern;
DWORD dwContainerIndex;
DWORD dwHashTableIndex;
DWORD dwHashEntryIndex;
} URLCacheFindEntryHandle;
/***********************************************************************
* FindFirstUrlCacheEntryA (WININET.@)
*
*/
INTERNETAPI HANDLE WINAPI FindFirstUrlCacheEntryA(LPCSTR lpszUrlSearchPattern,
LPINTERNET_CACHE_ENTRY_INFOA lpFirstCacheEntryInfo, LPDWORD lpdwFirstCacheEntryInfoBufferSize)
{
URLCacheFindEntryHandle *pEntryHandle;
TRACE("(%s, %p, %p)\n", debugstr_a(lpszUrlSearchPattern), lpFirstCacheEntryInfo, lpdwFirstCacheEntryInfoBufferSize);
pEntryHandle = heap_alloc(sizeof(*pEntryHandle));
if (!pEntryHandle)
return NULL;
pEntryHandle->dwMagic = URLCACHE_FIND_ENTRY_HANDLE_MAGIC;
if (lpszUrlSearchPattern)
{
pEntryHandle->lpszUrlSearchPattern = heap_strdupAtoW(lpszUrlSearchPattern);
if (!pEntryHandle->lpszUrlSearchPattern)
{
heap_free(pEntryHandle);
return NULL;
}
}
else
pEntryHandle->lpszUrlSearchPattern = NULL;
pEntryHandle->dwContainerIndex = 0;
pEntryHandle->dwHashTableIndex = 0;
pEntryHandle->dwHashEntryIndex = 0;
if (!FindNextUrlCacheEntryA(pEntryHandle, lpFirstCacheEntryInfo, lpdwFirstCacheEntryInfoBufferSize))
{
heap_free(pEntryHandle);
return NULL;
}
return pEntryHandle;
}
/***********************************************************************
* FindFirstUrlCacheEntryW (WININET.@)
*
*/
INTERNETAPI HANDLE WINAPI FindFirstUrlCacheEntryW(LPCWSTR lpszUrlSearchPattern,
LPINTERNET_CACHE_ENTRY_INFOW lpFirstCacheEntryInfo, LPDWORD lpdwFirstCacheEntryInfoBufferSize)
{
URLCacheFindEntryHandle *pEntryHandle;
TRACE("(%s, %p, %p)\n", debugstr_w(lpszUrlSearchPattern), lpFirstCacheEntryInfo, lpdwFirstCacheEntryInfoBufferSize);
pEntryHandle = heap_alloc(sizeof(*pEntryHandle));
if (!pEntryHandle)
return NULL;
pEntryHandle->dwMagic = URLCACHE_FIND_ENTRY_HANDLE_MAGIC;
if (lpszUrlSearchPattern)
{
pEntryHandle->lpszUrlSearchPattern = heap_strdupW(lpszUrlSearchPattern);
if (!pEntryHandle->lpszUrlSearchPattern)
{
heap_free(pEntryHandle);
return NULL;
}
}
else
pEntryHandle->lpszUrlSearchPattern = NULL;
pEntryHandle->dwContainerIndex = 0;
pEntryHandle->dwHashTableIndex = 0;
pEntryHandle->dwHashEntryIndex = 0;
if (!FindNextUrlCacheEntryW(pEntryHandle, lpFirstCacheEntryInfo, lpdwFirstCacheEntryInfoBufferSize))
{
heap_free(pEntryHandle);
return NULL;
}
return pEntryHandle;
}
static BOOL FindNextUrlCacheEntryInternal(
HANDLE hEnumHandle,
LPINTERNET_CACHE_ENTRY_INFOA lpNextCacheEntryInfo,
LPDWORD lpdwNextCacheEntryInfoBufferSize,
BOOL unicode)
{
URLCacheFindEntryHandle *pEntryHandle = (URLCacheFindEntryHandle *)hEnumHandle;
URLCACHECONTAINER * pContainer;
if (pEntryHandle->dwMagic != URLCACHE_FIND_ENTRY_HANDLE_MAGIC)
{
SetLastError(ERROR_INVALID_HANDLE);
return FALSE;
}
for (; URLCacheContainers_Enum(pEntryHandle->lpszUrlSearchPattern, pEntryHandle->dwContainerIndex, &pContainer);
pEntryHandle->dwContainerIndex++, pEntryHandle->dwHashTableIndex = 0)
{
LPURLCACHE_HEADER pHeader;
HASH_CACHEFILE_ENTRY *pHashTableEntry;
DWORD error;
error = URLCacheContainer_OpenIndex(pContainer, MIN_BLOCK_NO);
if (error != ERROR_SUCCESS)
{
SetLastError(error);
return FALSE;
}
if (!(pHeader = URLCacheContainer_LockIndex(pContainer)))
return FALSE;
for (; URLCache_EnumHashTables(pHeader, &pEntryHandle->dwHashTableIndex, &pHashTableEntry);
pEntryHandle->dwHashTableIndex++, pEntryHandle->dwHashEntryIndex = 0)
{
const struct _HASH_ENTRY *pHashEntry = NULL;
for (; URLCache_EnumHashTableEntries(pHeader, pHashTableEntry, &pEntryHandle->dwHashEntryIndex, &pHashEntry);
pEntryHandle->dwHashEntryIndex++)
{
const URL_CACHEFILE_ENTRY *pUrlEntry;
const CACHEFILE_ENTRY *pEntry = (const CACHEFILE_ENTRY *)((LPBYTE)pHeader + pHashEntry->dwOffsetEntry);
if (pEntry->dwSignature != URL_SIGNATURE)
continue;
pUrlEntry = (const URL_CACHEFILE_ENTRY *)pEntry;
TRACE("Found URL: %s\n",
debugstr_a((LPCSTR)pUrlEntry + pUrlEntry->dwOffsetUrl));
TRACE("Header info: %s\n",
debugstr_a((LPCSTR)pUrlEntry + pUrlEntry->dwOffsetHeaderInfo));
error = URLCache_CopyEntry(
pContainer,
pHeader,
lpNextCacheEntryInfo,
lpdwNextCacheEntryInfoBufferSize,
pUrlEntry,
unicode);
if (error != ERROR_SUCCESS)
{
URLCacheContainer_UnlockIndex(pContainer, pHeader);
SetLastError(error);
return FALSE;
}
TRACE("Local File Name: %s\n",
debugstr_a((LPCSTR)pUrlEntry + pUrlEntry->dwOffsetLocalName));
/* increment the current index so that next time the function
* is called the next entry is returned */
pEntryHandle->dwHashEntryIndex++;
URLCacheContainer_UnlockIndex(pContainer, pHeader);
return TRUE;
}
}
URLCacheContainer_UnlockIndex(pContainer, pHeader);
}
SetLastError(ERROR_NO_MORE_ITEMS);
return FALSE;
}
/***********************************************************************
* FindNextUrlCacheEntryA (WININET.@)
*/
BOOL WINAPI FindNextUrlCacheEntryA(
HANDLE hEnumHandle,
LPINTERNET_CACHE_ENTRY_INFOA lpNextCacheEntryInfo,
LPDWORD lpdwNextCacheEntryInfoBufferSize)
{
TRACE("(%p, %p, %p)\n", hEnumHandle, lpNextCacheEntryInfo, lpdwNextCacheEntryInfoBufferSize);
return FindNextUrlCacheEntryInternal(hEnumHandle, lpNextCacheEntryInfo,
lpdwNextCacheEntryInfoBufferSize, FALSE /* not UNICODE */);
}
/***********************************************************************
* FindNextUrlCacheEntryW (WININET.@)
*/
BOOL WINAPI FindNextUrlCacheEntryW(
HANDLE hEnumHandle,
LPINTERNET_CACHE_ENTRY_INFOW lpNextCacheEntryInfo,
LPDWORD lpdwNextCacheEntryInfoBufferSize
)
{
TRACE("(%p, %p, %p)\n", hEnumHandle, lpNextCacheEntryInfo, lpdwNextCacheEntryInfoBufferSize);
return FindNextUrlCacheEntryInternal(hEnumHandle,
(LPINTERNET_CACHE_ENTRY_INFOA)lpNextCacheEntryInfo,
lpdwNextCacheEntryInfoBufferSize, TRUE /* UNICODE */);
}
/***********************************************************************
* FindCloseUrlCache (WININET.@)
*/
BOOL WINAPI FindCloseUrlCache(HANDLE hEnumHandle)
{
URLCacheFindEntryHandle *pEntryHandle = (URLCacheFindEntryHandle *)hEnumHandle;
TRACE("(%p)\n", hEnumHandle);
if (!pEntryHandle || pEntryHandle->dwMagic != URLCACHE_FIND_ENTRY_HANDLE_MAGIC)
{
SetLastError(ERROR_INVALID_HANDLE);
return FALSE;
}
pEntryHandle->dwMagic = 0;
heap_free(pEntryHandle->lpszUrlSearchPattern);
heap_free(pEntryHandle);
return TRUE;
}
HANDLE WINAPI FindFirstUrlCacheGroup( DWORD dwFlags, DWORD dwFilter, LPVOID lpSearchCondition,
DWORD dwSearchCondition, GROUPID* lpGroupId, LPVOID lpReserved )
{
FIXME("(0x%08x, 0x%08x, %p, 0x%08x, %p, %p) stub\n", dwFlags, dwFilter, lpSearchCondition,
dwSearchCondition, lpGroupId, lpReserved);
return NULL;
}
BOOL WINAPI FindNextUrlCacheEntryExA(
HANDLE hEnumHandle,
LPINTERNET_CACHE_ENTRY_INFOA lpFirstCacheEntryInfo,
LPDWORD lpdwFirstCacheEntryInfoBufferSize,
LPVOID lpReserved,
LPDWORD pcbReserved2,
LPVOID lpReserved3
)
{
FIXME("(%p, %p, %p, %p, %p, %p) stub\n", hEnumHandle, lpFirstCacheEntryInfo, lpdwFirstCacheEntryInfoBufferSize,
lpReserved, pcbReserved2, lpReserved3);
return FALSE;
}
BOOL WINAPI FindNextUrlCacheEntryExW(
HANDLE hEnumHandle,
LPINTERNET_CACHE_ENTRY_INFOW lpFirstCacheEntryInfo,
LPDWORD lpdwFirstCacheEntryInfoBufferSize,
LPVOID lpReserved,
LPDWORD pcbReserved2,
LPVOID lpReserved3
)
{
FIXME("(%p, %p, %p, %p, %p, %p) stub\n", hEnumHandle, lpFirstCacheEntryInfo, lpdwFirstCacheEntryInfoBufferSize,
lpReserved, pcbReserved2, lpReserved3);
return FALSE;
}
BOOL WINAPI FindNextUrlCacheGroup( HANDLE hFind, GROUPID* lpGroupId, LPVOID lpReserved )
{
FIXME("(%p, %p, %p) stub\n", hFind, lpGroupId, lpReserved);
return FALSE;
}
/***********************************************************************
* CreateUrlCacheGroup (WININET.@)
*
*/
INTERNETAPI GROUPID WINAPI CreateUrlCacheGroup(DWORD dwFlags, LPVOID lpReserved)
{
FIXME("(0x%08x, %p): stub\n", dwFlags, lpReserved);
return FALSE;
}
/***********************************************************************
* DeleteUrlCacheGroup (WININET.@)
*
*/
BOOL WINAPI DeleteUrlCacheGroup(GROUPID GroupId, DWORD dwFlags, LPVOID lpReserved)
{
FIXME("(0x%08x%08x, 0x%08x, %p) stub\n",
(ULONG)(GroupId >> 32), (ULONG)GroupId, dwFlags, lpReserved);
return FALSE;
}
/***********************************************************************
* SetUrlCacheEntryGroupA (WININET.@)
*
*/
BOOL WINAPI SetUrlCacheEntryGroupA(LPCSTR lpszUrlName, DWORD dwFlags,
GROUPID GroupId, LPBYTE pbGroupAttributes, DWORD cbGroupAttributes,
LPVOID lpReserved)
{
FIXME("(%s, 0x%08x, 0x%08x%08x, %p, 0x%08x, %p) stub\n",
debugstr_a(lpszUrlName), dwFlags, (ULONG)(GroupId >> 32), (ULONG)GroupId,
pbGroupAttributes, cbGroupAttributes, lpReserved);
SetLastError(ERROR_FILE_NOT_FOUND);
return FALSE;
}
/***********************************************************************
* SetUrlCacheEntryGroupW (WININET.@)
*
*/
BOOL WINAPI SetUrlCacheEntryGroupW(LPCWSTR lpszUrlName, DWORD dwFlags,
GROUPID GroupId, LPBYTE pbGroupAttributes, DWORD cbGroupAttributes,
LPVOID lpReserved)
{
FIXME("(%s, 0x%08x, 0x%08x%08x, %p, 0x%08x, %p) stub\n",
debugstr_w(lpszUrlName), dwFlags, (ULONG)(GroupId >> 32), (ULONG)GroupId,
pbGroupAttributes, cbGroupAttributes, lpReserved);
SetLastError(ERROR_FILE_NOT_FOUND);
return FALSE;
}
/***********************************************************************
* GetUrlCacheConfigInfoW (WININET.@)
*/
BOOL WINAPI GetUrlCacheConfigInfoW(LPINTERNET_CACHE_CONFIG_INFOW CacheInfo, LPDWORD size, DWORD bitmask)
{
FIXME("(%p, %p, %x)\n", CacheInfo, size, bitmask);
INTERNET_SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
/***********************************************************************
* GetUrlCacheConfigInfoA (WININET.@)
*/
BOOL WINAPI GetUrlCacheConfigInfoA(LPINTERNET_CACHE_CONFIG_INFOA CacheInfo, LPDWORD size, DWORD bitmask)
{
FIXME("(%p, %p, %x)\n", CacheInfo, size, bitmask);
INTERNET_SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
BOOL WINAPI GetUrlCacheGroupAttributeA( GROUPID gid, DWORD dwFlags, DWORD dwAttributes,
LPINTERNET_CACHE_GROUP_INFOA lpGroupInfo,
LPDWORD lpdwGroupInfo, LPVOID lpReserved )
{
FIXME("(0x%08x%08x, 0x%08x, 0x%08x, %p, %p, %p) stub\n",
(ULONG)(gid >> 32), (ULONG)gid, dwFlags, dwAttributes, lpGroupInfo,
lpdwGroupInfo, lpReserved);
return FALSE;
}
BOOL WINAPI GetUrlCacheGroupAttributeW( GROUPID gid, DWORD dwFlags, DWORD dwAttributes,
LPINTERNET_CACHE_GROUP_INFOW lpGroupInfo,
LPDWORD lpdwGroupInfo, LPVOID lpReserved )
{
FIXME("(0x%08x%08x, 0x%08x, 0x%08x, %p, %p, %p) stub\n",
(ULONG)(gid >> 32), (ULONG)gid, dwFlags, dwAttributes, lpGroupInfo,
lpdwGroupInfo, lpReserved);
return FALSE;
}
BOOL WINAPI SetUrlCacheGroupAttributeA( GROUPID gid, DWORD dwFlags, DWORD dwAttributes,
LPINTERNET_CACHE_GROUP_INFOA lpGroupInfo, LPVOID lpReserved )
{
FIXME("(0x%08x%08x, 0x%08x, 0x%08x, %p, %p) stub\n",
(ULONG)(gid >> 32), (ULONG)gid, dwFlags, dwAttributes, lpGroupInfo, lpReserved);
return TRUE;
}
BOOL WINAPI SetUrlCacheGroupAttributeW( GROUPID gid, DWORD dwFlags, DWORD dwAttributes,
LPINTERNET_CACHE_GROUP_INFOW lpGroupInfo, LPVOID lpReserved )
{
FIXME("(0x%08x%08x, 0x%08x, 0x%08x, %p, %p) stub\n",
(ULONG)(gid >> 32), (ULONG)gid, dwFlags, dwAttributes, lpGroupInfo, lpReserved);
return TRUE;
}
BOOL WINAPI SetUrlCacheConfigInfoA( LPINTERNET_CACHE_CONFIG_INFOA lpCacheConfigInfo, DWORD dwFieldControl )
{
FIXME("(%p, 0x%08x) stub\n", lpCacheConfigInfo, dwFieldControl);
return TRUE;
}
BOOL WINAPI SetUrlCacheConfigInfoW( LPINTERNET_CACHE_CONFIG_INFOW lpCacheConfigInfo, DWORD dwFieldControl )
{
FIXME("(%p, 0x%08x) stub\n", lpCacheConfigInfo, dwFieldControl);
return TRUE;
}
/***********************************************************************
* DeleteIE3Cache (WININET.@)
*
* Deletes the files used by the IE3 URL caching system.
*
* PARAMS
* hWnd [I] A dummy window.
* hInst [I] Instance of process calling the function.
* lpszCmdLine [I] Options used by function.
* nCmdShow [I] The nCmdShow value to use when showing windows created, if any.
*/
DWORD WINAPI DeleteIE3Cache(HWND hWnd, HINSTANCE hInst, LPSTR lpszCmdLine, int nCmdShow)
{
FIXME("(%p, %p, %s, %d)\n", hWnd, hInst, debugstr_a(lpszCmdLine), nCmdShow);
return 0;
}
static BOOL IsUrlCacheEntryExpiredInternal(const URL_CACHEFILE_ENTRY *pUrlEntry,
FILETIME *pftLastModified)
{
BOOL ret;
FILETIME now, expired;
*pftLastModified = pUrlEntry->LastModifiedTime;
GetSystemTimeAsFileTime(&now);
URLCache_DosDateTimeToFileTime(pUrlEntry->wExpiredDate,
pUrlEntry->wExpiredTime, &expired);
/* If the expired time is 0, it's interpreted as not expired */
if (!expired.dwLowDateTime && !expired.dwHighDateTime)
ret = FALSE;
else
ret = CompareFileTime(&expired, &now) < 0;
return ret;
}
/***********************************************************************
* IsUrlCacheEntryExpiredA (WININET.@)
*
* PARAMS
* url [I] Url
* dwFlags [I] Unknown
* pftLastModified [O] Last modified time
*/
BOOL WINAPI IsUrlCacheEntryExpiredA( LPCSTR url, DWORD dwFlags, FILETIME* pftLastModified )
{
LPURLCACHE_HEADER pHeader;
struct _HASH_ENTRY * pHashEntry;
const CACHEFILE_ENTRY * pEntry;
const URL_CACHEFILE_ENTRY * pUrlEntry;
URLCACHECONTAINER * pContainer;
BOOL expired;
TRACE("(%s, %08x, %p)\n", debugstr_a(url), dwFlags, pftLastModified);
if (!url || !pftLastModified)
return TRUE;
if (dwFlags)
FIXME("unknown flags 0x%08x\n", dwFlags);
/* Any error implies that the URL is expired, i.e. not in the cache */
if (URLCacheContainers_FindContainerA(url, &pContainer))
{
memset(pftLastModified, 0, sizeof(*pftLastModified));
return TRUE;
}
if (URLCacheContainer_OpenIndex(pContainer, MIN_BLOCK_NO))
{
memset(pftLastModified, 0, sizeof(*pftLastModified));
return TRUE;
}
if (!(pHeader = URLCacheContainer_LockIndex(pContainer)))
{
memset(pftLastModified, 0, sizeof(*pftLastModified));
return TRUE;
}
if (!URLCache_FindHash(pHeader, url, &pHashEntry))
{
URLCacheContainer_UnlockIndex(pContainer, pHeader);
memset(pftLastModified, 0, sizeof(*pftLastModified));
TRACE("entry %s not found!\n", url);
return TRUE;
}
pEntry = (const CACHEFILE_ENTRY *)((LPBYTE)pHeader + pHashEntry->dwOffsetEntry);
if (pEntry->dwSignature != URL_SIGNATURE)
{
URLCacheContainer_UnlockIndex(pContainer, pHeader);
memset(pftLastModified, 0, sizeof(*pftLastModified));
FIXME("Trying to retrieve entry of unknown format %s\n", debugstr_an((LPCSTR)&pEntry->dwSignature, sizeof(DWORD)));
return TRUE;
}
pUrlEntry = (const URL_CACHEFILE_ENTRY *)pEntry;
expired = IsUrlCacheEntryExpiredInternal(pUrlEntry, pftLastModified);
URLCacheContainer_UnlockIndex(pContainer, pHeader);
return expired;
}
/***********************************************************************
* IsUrlCacheEntryExpiredW (WININET.@)
*
* PARAMS
* url [I] Url
* dwFlags [I] Unknown
* pftLastModified [O] Last modified time
*/
BOOL WINAPI IsUrlCacheEntryExpiredW( LPCWSTR url, DWORD dwFlags, FILETIME* pftLastModified )
{
LPURLCACHE_HEADER pHeader;
struct _HASH_ENTRY * pHashEntry;
const CACHEFILE_ENTRY * pEntry;
const URL_CACHEFILE_ENTRY * pUrlEntry;
URLCACHECONTAINER * pContainer;
BOOL expired;
TRACE("(%s, %08x, %p)\n", debugstr_w(url), dwFlags, pftLastModified);
if (!url || !pftLastModified)
return TRUE;
if (dwFlags)
FIXME("unknown flags 0x%08x\n", dwFlags);
/* Any error implies that the URL is expired, i.e. not in the cache */
if (URLCacheContainers_FindContainerW(url, &pContainer))
{
memset(pftLastModified, 0, sizeof(*pftLastModified));
return TRUE;
}
if (URLCacheContainer_OpenIndex(pContainer, MIN_BLOCK_NO))
{
memset(pftLastModified, 0, sizeof(*pftLastModified));
return TRUE;
}
if (!(pHeader = URLCacheContainer_LockIndex(pContainer)))
{
memset(pftLastModified, 0, sizeof(*pftLastModified));
return TRUE;
}
if (!URLCache_FindHashW(pHeader, url, &pHashEntry))
{
URLCacheContainer_UnlockIndex(pContainer, pHeader);
memset(pftLastModified, 0, sizeof(*pftLastModified));
TRACE("entry %s not found!\n", debugstr_w(url));
return TRUE;
}
if (!URLCache_FindHashW(pHeader, url, &pHashEntry))
{
URLCacheContainer_UnlockIndex(pContainer, pHeader);
memset(pftLastModified, 0, sizeof(*pftLastModified));
TRACE("entry %s not found!\n", debugstr_w(url));
return TRUE;
}
pEntry = (const CACHEFILE_ENTRY *)((LPBYTE)pHeader + pHashEntry->dwOffsetEntry);
if (pEntry->dwSignature != URL_SIGNATURE)
{
URLCacheContainer_UnlockIndex(pContainer, pHeader);
memset(pftLastModified, 0, sizeof(*pftLastModified));
FIXME("Trying to retrieve entry of unknown format %s\n", debugstr_an((LPCSTR)&pEntry->dwSignature, sizeof(DWORD)));
return TRUE;
}
pUrlEntry = (const URL_CACHEFILE_ENTRY *)pEntry;
expired = IsUrlCacheEntryExpiredInternal(pUrlEntry, pftLastModified);
URLCacheContainer_UnlockIndex(pContainer, pHeader);
return expired;
}
/***********************************************************************
* GetDiskInfoA (WININET.@)
*/
BOOL WINAPI GetDiskInfoA(PCSTR path, PDWORD cluster_size, PDWORDLONG free, PDWORDLONG total)
{
BOOL ret;
ULARGE_INTEGER bytes_free, bytes_total;
TRACE("(%s, %p, %p, %p)\n", debugstr_a(path), cluster_size, free, total);
if (!path)
{
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
if ((ret = GetDiskFreeSpaceExA(path, NULL, &bytes_total, &bytes_free)))
{
if (cluster_size) *cluster_size = 1;
if (free) *free = bytes_free.QuadPart;
if (total) *total = bytes_total.QuadPart;
}
return ret;
}
/***********************************************************************
* RegisterUrlCacheNotification (WININET.@)
*/
DWORD WINAPI RegisterUrlCacheNotification(LPVOID a, DWORD b, DWORD c, DWORD d, DWORD e, DWORD f)
{
FIXME("(%p %x %x %x %x %x)\n", a, b, c, d, e, f);
return 0;
}
/***********************************************************************
* IncrementUrlCacheHeaderData (WININET.@)
*/
BOOL WINAPI IncrementUrlCacheHeaderData(DWORD index, LPDWORD data)
{
FIXME("(%u, %p)\n", index, data);
return FALSE;
}
/***********************************************************************
* RunOnceUrlCache (WININET.@)
*/
DWORD WINAPI RunOnceUrlCache(HWND hwnd, HINSTANCE hinst, LPSTR cmd, int cmdshow)
{
FIXME("(%p, %p, %s, %d): stub\n", hwnd, hinst, debugstr_a(cmd), cmdshow);
return 0;
}
BOOL init_urlcache(void)
{
dll_unload_event = CreateEventW(NULL, FALSE, FALSE, NULL);
if(!dll_unload_event)
return FALSE;
free_cache_running = CreateSemaphoreW(NULL, 1, 1, NULL);
if(!free_cache_running) {
CloseHandle(dll_unload_event);
return FALSE;
}
URLCacheContainers_CreateDefaults();
return TRUE;
}
void free_urlcache(void)
{
SetEvent(dll_unload_event);
WaitForSingleObject(free_cache_running, INFINITE);
ReleaseSemaphore(free_cache_running, 1, NULL);
CloseHandle(free_cache_running);
CloseHandle(dll_unload_event);
URLCacheContainers_DeleteAll();
}
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