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Sweden-Number/dlls/shlwapi/url.c

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/*
* Url functions
*
* Copyright 2000 Huw D M Davies for CodeWeavers.
*/
#include <string.h>
#include <stdlib.h>
#include "windef.h"
#include "winnls.h"
#include "winbase.h"
#include "winerror.h"
#include "wine/unicode.h"
#include "wininet.h"
#include "winreg.h"
#define NO_SHLWAPI_STREAM
#include "shlwapi.h"
#include "debugtools.h"
#include "ordinal.h"
DEFAULT_DEBUG_CHANNEL(shell);
typedef struct {
LPCWSTR pScheme; /* [out] start of scheme */
DWORD szScheme; /* [out] size of scheme (until colon) */
LPCWSTR pUserName; /* [out] start of Username */
DWORD szUserName; /* [out] size of Username (until ":" or "@") */
LPCWSTR pPassword; /* [out] start of Password */
DWORD szPassword; /* [out] size of Password (until "@") */
LPCWSTR pHostName; /* [out] start of Hostname */
DWORD szHostName; /* [out] size of Hostname (until ":" or "/") */
LPCWSTR pPort; /* [out] start of Port */
DWORD szPort; /* [out] size of Port (until "/" or eos) */
LPCWSTR pQuery; /* [out] start of Query */
DWORD szQuery; /* [out] size of Query (until eos) */
} WINE_PARSE_URL;
typedef enum {
SCHEME,
HOST,
PORT,
USERPASS,
} WINE_URL_SCAN_TYPE;
static const WCHAR fileW[] = {'f','i','l','e','\0'};
static const unsigned char HashDataLookup[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 };
static BOOL URL_NeedEscapeA(CHAR ch, DWORD dwFlags)
{
if (isalnum(ch))
return FALSE;
if(dwFlags & URL_ESCAPE_SPACES_ONLY) {
if(ch == ' ')
return TRUE;
else
return FALSE;
}
if ((dwFlags & URL_ESCAPE_PERCENT) && (ch == '%'))
return TRUE;
if (ch <= 31 || ch >= 127)
return TRUE;
else {
switch (ch) {
case ' ':
case '<':
case '>':
case '\"':
case '{':
case '}':
case '|':
case '\\':
case '^':
case ']':
case '[':
case '`':
case '&':
return TRUE;
case '/':
case '?':
if (dwFlags & URL_ESCAPE_SEGMENT_ONLY) return TRUE;
default:
return FALSE;
}
}
}
static BOOL URL_NeedEscapeW(WCHAR ch, DWORD dwFlags)
{
if (isalnumW(ch))
return FALSE;
if(dwFlags & URL_ESCAPE_SPACES_ONLY) {
if(ch == L' ')
return TRUE;
else
return FALSE;
}
if ((dwFlags & URL_ESCAPE_PERCENT) && (ch == L'%'))
return TRUE;
if (ch <= 31 || ch >= 127)
return TRUE;
else {
switch (ch) {
case L' ':
case L'<':
case L'>':
case L'\"':
case L'{':
case L'}':
case L'|':
case L'\\':
case L'^':
case L']':
case L'[':
case L'`':
case L'&':
return TRUE;
case L'/':
case L'?':
if (dwFlags & URL_ESCAPE_SEGMENT_ONLY) return TRUE;
default:
return FALSE;
}
}
}
static BOOL URL_JustLocation(LPCWSTR str)
{
while(*str && (*str == L'/')) str++;
if (*str) {
while (*str && ((*str == L'-') ||
(*str == L'.') ||
isalnumW(*str))) str++;
if (*str == L'/') return FALSE;
}
return TRUE;
}
/*************************************************************************
* UrlCanonicalizeA [SHLWAPI.@]
*
* Uses the W version to do job.
*/
HRESULT WINAPI UrlCanonicalizeA(LPCSTR pszUrl, LPSTR pszCanonicalized,
LPDWORD pcchCanonicalized, DWORD dwFlags)
{
LPWSTR base, canonical;
DWORD ret, len, len2;
TRACE("(%s %p %p 0x%08lx) using W version\n",
debugstr_a(pszUrl), pszCanonicalized,
pcchCanonicalized, dwFlags);
base = (LPWSTR) HeapAlloc(GetProcessHeap(), 0,
(2*INTERNET_MAX_URL_LENGTH) * sizeof(WCHAR));
canonical = base + INTERNET_MAX_URL_LENGTH;
MultiByteToWideChar(0, 0, pszUrl, -1, base, INTERNET_MAX_URL_LENGTH);
len = INTERNET_MAX_URL_LENGTH;
ret = UrlCanonicalizeW(base, canonical, &len, dwFlags);
if (ret != S_OK) {
HeapFree(GetProcessHeap(), 0, base);
return ret;
}
len2 = WideCharToMultiByte(0, 0, canonical, len, 0, 0, 0, 0);
if (len2 > *pcchCanonicalized) {
*pcchCanonicalized = len;
HeapFree(GetProcessHeap(), 0, base);
return E_POINTER;
}
WideCharToMultiByte(0, 0, canonical, len+1, pszCanonicalized,
*pcchCanonicalized, 0, 0);
*pcchCanonicalized = len2;
HeapFree(GetProcessHeap(), 0, base);
return S_OK;
}
/*************************************************************************
* UrlCanonicalizeW [SHLWAPI.@]
*
*
* MSDN is wrong (at 10/30/01 - go figure). This should support the
* following flags: GLA
* URL_DONT_ESCAPE_EXTRA_INFO 0x02000000
* URL_ESCAPE_SPACES_ONLY 0x04000000
* URL_ESCAPE_PERCENT 0x00001000
* URL_ESCAPE_UNSAFE 0x10000000
* URL_UNESCAPE 0x10000000
* URL_DONT_SIMPLIFY 0x08000000
* URL_ESCAPE_SEGMENT_ONLY 0x00002000
*/
HRESULT WINAPI UrlCanonicalizeW(LPCWSTR pszUrl, LPWSTR pszCanonicalized,
LPDWORD pcchCanonicalized, DWORD dwFlags)
{
HRESULT hr = S_OK;
DWORD EscapeFlags;
LPWSTR lpszUrlCpy, wk1, wk2, mp, root;
INT nLen, nByteLen, state;
TRACE("(%s %p %p 0x%08lx)\n", debugstr_w(pszUrl), pszCanonicalized,
pcchCanonicalized, dwFlags);
nByteLen = (lstrlenW(pszUrl) + 1) * sizeof(WCHAR); /* length in bytes */
lpszUrlCpy = HeapAlloc(GetProcessHeap(), 0, nByteLen);
if (dwFlags & URL_DONT_SIMPLIFY)
memcpy(lpszUrlCpy, pszUrl, nByteLen);
else {
/*
* state =
* 0 initial 1,3
* 1 have 2[+] alnum 2,3
* 2 have scheme (found :) 4,6,3
* 3 failed (no location)
* 4 have // 5,3
* 5 have 1[+] alnum 6,3
* 6 have location (found /) save root location
*/
wk1 = (LPWSTR)pszUrl;
wk2 = lpszUrlCpy;
state = 0;
while (*wk1) {
switch (state) {
case 0:
if (!isalnumW(*wk1)) {state = 3; break;}
*wk2++ = *wk1++;
if (!isalnumW(*wk1)) {state = 3; break;}
*wk2++ = *wk1++;
state = 1;
break;
case 1:
*wk2++ = *wk1;
if (*wk1++ == L':') state = 2;
break;
case 2:
if (*wk1 != L'/') {state = 3; break;}
*wk2++ = *wk1++;
if (*wk1 != L'/') {state = 6; break;}
*wk2++ = *wk1++;
state = 4;
break;
case 3:
strcpyW(wk2, wk1);
wk1 += strlenW(wk1);
wk2 += strlenW(wk2);
break;
case 4:
if (!isalnumW(*wk1) && (*wk1 != L'-')) {state = 3; break;}
while(isalnumW(*wk1) || (*wk1 == L'-')) *wk2++ = *wk1++;
state = 5;
break;
case 5:
if (*wk1 != L'/') {state = 3; break;}
*wk2++ = *wk1++;
state = 6;
break;
case 6:
/* Now at root location, cannot back up any more. */
/* "root" will point at the '/' */
root = wk2-1;
while (*wk1) {
TRACE("wk1=%c\n", (CHAR)*wk1);
mp = strchrW(wk1, L'/');
if (!mp) {
strcpyW(wk2, wk1);
wk1 += strlenW(wk1);
wk2 += strlenW(wk2);
continue;
}
nLen = mp - wk1 + 1;
strncpyW(wk2, wk1, nLen);
wk2 += nLen;
wk1 += nLen;
if (*wk1 == L'.') {
TRACE("found '/.'\n");
if (*(wk1+1) == L'/') {
/* case of /./ -> skip the ./ */
wk1 += 2;
}
else if (*(wk1+1) == L'.') {
/* found /.. look for next / */
TRACE("found '/..'\n");
if (*(wk1+2) == L'/') {
/* case /../ -> need to backup wk2 */
TRACE("found '/../'\n");
*(wk2-1) = L'\0'; /* set end of string */
mp = strrchrW(root, L'/');
if (mp && (mp >= root)) {
/* found valid backup point */
wk2 = mp + 1;
wk1 += 3;
}
else {
/* did not find point, restore '/' */
*(wk2-1) = L'/';
}
}
}
}
}
*wk2 = L'\0';
break;
default:
FIXME("how did we get here - state=%d\n", state);
return E_INVALIDARG;
}
}
*wk2 = L'\0';
TRACE("Simplified, orig <%s>, simple <%s>\n",
debugstr_w(pszUrl), debugstr_w(lpszUrlCpy));
}
if(dwFlags & URL_UNESCAPE)
UrlUnescapeW(lpszUrlCpy, NULL, NULL, URL_UNESCAPE_INPLACE);
if((EscapeFlags = dwFlags & (URL_ESCAPE_UNSAFE |
URL_ESCAPE_SPACES_ONLY |
URL_ESCAPE_PERCENT |
URL_DONT_ESCAPE_EXTRA_INFO |
URL_ESCAPE_SEGMENT_ONLY ))) {
EscapeFlags &= ~URL_ESCAPE_UNSAFE;
hr = UrlEscapeW(lpszUrlCpy, pszCanonicalized, pcchCanonicalized,
EscapeFlags);
} else { /* No escaping needed, just copy the string */
nLen = lstrlenW(lpszUrlCpy);
if(nLen < *pcchCanonicalized)
memcpy(pszCanonicalized, lpszUrlCpy, (nLen + 1)*sizeof(WCHAR));
else {
hr = E_POINTER;
nLen++;
}
*pcchCanonicalized = nLen;
}
HeapFree(GetProcessHeap(), 0, lpszUrlCpy);
if (hr == S_OK)
TRACE("result %s\n", debugstr_w(pszCanonicalized));
return hr;
}
/*************************************************************************
* UrlCombineA [SHLWAPI.@]
*
* Uses the W version to do job.
*/
HRESULT WINAPI UrlCombineA(LPCSTR pszBase, LPCSTR pszRelative,
LPSTR pszCombined, LPDWORD pcchCombined,
DWORD dwFlags)
{
LPWSTR base, relative, combined;
DWORD ret, len, len2;
TRACE("(base %s, Relative %s, Combine size %ld, flags %08lx) using W version\n",
debugstr_a(pszBase),debugstr_a(pszRelative),
*pcchCombined,dwFlags);
base = (LPWSTR) HeapAlloc(GetProcessHeap(), 0,
(3*INTERNET_MAX_URL_LENGTH) * sizeof(WCHAR));
relative = base + INTERNET_MAX_URL_LENGTH;
combined = relative + INTERNET_MAX_URL_LENGTH;
MultiByteToWideChar(0, 0, pszBase, -1, base, INTERNET_MAX_URL_LENGTH);
MultiByteToWideChar(0, 0, pszRelative, -1, relative, INTERNET_MAX_URL_LENGTH);
len = INTERNET_MAX_URL_LENGTH;
ret = UrlCombineW(base, relative, combined, &len, dwFlags);
if (ret != S_OK) {
HeapFree(GetProcessHeap(), 0, base);
return ret;
}
len2 = WideCharToMultiByte(0, 0, combined, len, 0, 0, 0, 0);
if (len2 > *pcchCombined) {
*pcchCombined = len2;
HeapFree(GetProcessHeap(), 0, base);
return E_POINTER;
}
WideCharToMultiByte(0, 0, combined, len+1, pszCombined, *pcchCombined,
0, 0);
*pcchCombined = len2;
HeapFree(GetProcessHeap(), 0, base);
return S_OK;
}
/*************************************************************************
* UrlCombineW [SHLWAPI.@]
*/
HRESULT WINAPI UrlCombineW(LPCWSTR pszBase, LPCWSTR pszRelative,
LPWSTR pszCombined, LPDWORD pcchCombined,
DWORD dwFlags)
{
UNKNOWN_SHLWAPI_2 base, relative;
DWORD myflags, sizeloc = 0;
DWORD len, res1, res2, process_case = 0;
LPWSTR work, preliminary, mbase, mrelative;
WCHAR myfilestr[] = {'f','i','l','e',':','/','/','/','\0'};
WCHAR single_slash[] = {'/','\0'};
HRESULT ret;
TRACE("(base %s, Relative %s, Combine size %ld, flags %08lx)\n",
debugstr_w(pszBase),debugstr_w(pszRelative),
*pcchCombined,dwFlags);
base.size = 24;
relative.size = 24;
/* Get space for duplicates of the input and the output */
preliminary = HeapAlloc(GetProcessHeap(), 0, (3*INTERNET_MAX_URL_LENGTH) *
sizeof(WCHAR));
mbase = preliminary + INTERNET_MAX_URL_LENGTH;
mrelative = mbase + INTERNET_MAX_URL_LENGTH;
*preliminary = L'\0';
/* Canonicalize the base input prior to looking for the scheme */
myflags = dwFlags & (URL_DONT_SIMPLIFY | URL_UNESCAPE);
len = INTERNET_MAX_URL_LENGTH;
ret = UrlCanonicalizeW(pszBase, mbase, &len, myflags);
/* Canonicalize the relative input prior to looking for the scheme */
len = INTERNET_MAX_URL_LENGTH;
ret = UrlCanonicalizeW(pszRelative, mrelative, &len, myflags);
/* See if the base has a scheme */
res1 = SHLWAPI_2(mbase, &base);
if (res1) {
/* if pszBase has no scheme, then return pszRelative */
TRACE("no scheme detected in Base\n");
process_case = 1;
}
else do {
/* get size of location field (if it exists) */
work = (LPWSTR)base.ap2;
sizeloc = 0;
if (*work++ == L'/') {
if (*work++ == L'/') {
/* At this point have start of location and
* it ends at next '/' or end of string.
*/
while(*work && (*work != L'/')) work++;
sizeloc = work - base.ap2;
}
}
/* Change .sizep2 to not have the last leaf in it,
* Note: we need to start after the location (if it exists)
*/
work = strrchrW((base.ap2+sizeloc), L'/');
if (work) {
len = work - base.ap2 + 1;
base.sizep2 = len;
}
/*
* At this point:
* .ap2 points to location (starting with '//')
* .sizep2 length of location (above) and rest less the last
* leaf (if any)
* sizeloc length of location (above) up to but not including
* the last '/'
*/
res2 = SHLWAPI_2(mrelative, &relative);
if (res2) {
/* no scheme in pszRelative */
TRACE("no scheme detected in Relative\n");
relative.ap2 = mrelative; /* case 3,4,5 depends on this */
relative.sizep2 = strlenW(mrelative);
if (*pszRelative == L':') {
/* case that is either left alone or uses pszBase */
if (dwFlags & URL_PLUGGABLE_PROTOCOL) {
process_case = 5;
break;
}
process_case = 1;
break;
}
if (isalnum(*mrelative) && (*(mrelative + 1) == L':')) {
/* case that becomes "file:///" */
strcpyW(preliminary, myfilestr);
process_case = 1;
break;
}
if ((*mrelative == L'/') && (*(mrelative+1) == L'/')) {
/* pszRelative has location and rest */
process_case = 3;
break;
}
if (*mrelative == L'/') {
/* case where pszRelative is root to location */
process_case = 4;
break;
}
process_case = (*base.ap2 == L'/') ? 5 : 3;
break;
}
/* handle cases where pszRelative has scheme */
if ((base.sizep1 == relative.sizep1) &&
(strncmpW(base.ap1, relative.ap1, base.sizep1) == 0)) {
/* since the schemes are the same */
if ((*relative.ap2 == L'/') && (*(relative.ap2+1) == L'/')) {
/* case where pszRelative replaces location and following */
process_case = 3;
break;
}
if (*relative.ap2 == L'/') {
/* case where pszRelative is root to location */
process_case = 4;
break;
}
/* case where scheme is followed by document path */
process_case = 5;
break;
}
if ((*relative.ap2 == L'/') && (*(relative.ap2+1) == L'/')) {
/* case where pszRelative replaces scheme, location,
* and following and handles PLUGGABLE
*/
process_case = 2;
break;
}
process_case = 1;
break;
} while(FALSE); /* a litte trick to allow easy exit from nested if's */
ret = S_OK;
switch (process_case) {
case 1: /*
* Return pszRelative appended to what ever is in pszCombined,
* (which may the string "file:///"
*/
len = strlenW(mrelative) + strlenW(preliminary);
if (len+1 > *pcchCombined) {
*pcchCombined = len;
ret = E_POINTER;
break;
}
strcatW(preliminary, mrelative);
break;
case 2: /*
* Same as case 1, but if URL_PLUGGABLE_PROTOCOL was specified
* and pszRelative starts with "//", then append a "/"
*/
len = strlenW(mrelative) + 1;
if (len+1 > *pcchCombined) {
*pcchCombined = len;
ret = E_POINTER;
break;
}
strcpyW(preliminary, mrelative);
if (!(dwFlags & URL_PLUGGABLE_PROTOCOL) &&
URL_JustLocation(relative.ap2))
strcatW(preliminary, single_slash);
break;
case 3: /*
* Return the pszBase scheme with pszRelative. Basicly
* keeps the scheme and replaces the domain and following.
*/
len = base.sizep1 + 1 + relative.sizep2 + 1;
if (len+1 > *pcchCombined) {
*pcchCombined = len;
ret = E_POINTER;
break;
}
strncpyW(preliminary, base.ap1, base.sizep1 + 1);
work = preliminary + base.sizep1 + 1;
strcpyW(work, relative.ap2);
if (!(dwFlags & URL_PLUGGABLE_PROTOCOL) &&
URL_JustLocation(relative.ap2))
strcatW(work, single_slash);
break;
case 4: /*
* Return the pszBase scheme and location but everything
* after the location is pszRelative. (Replace document
* from root on.)
*/
len = base.sizep1 + 1 + sizeloc + relative.sizep2 + 1;
if (len+1 > *pcchCombined) {
*pcchCombined = len;
ret = E_POINTER;
break;
}
strncpyW(preliminary, base.ap1, base.sizep1+1+sizeloc);
work = preliminary + base.sizep1 + 1 + sizeloc;
if (dwFlags & URL_PLUGGABLE_PROTOCOL)
*(work++) = L'/';
strcpyW(work, relative.ap2);
break;
case 5: /*
* Return the pszBase without its document (if any) and
* append pszRelative after its scheme.
*/
len = base.sizep1 + 1 + base.sizep2 + relative.sizep2;
if (len+1 > *pcchCombined) {
*pcchCombined = len;
ret = E_POINTER;
break;
}
strncpyW(preliminary, base.ap1, base.sizep1+1+base.sizep2);
work = preliminary + base.sizep1+1+base.sizep2 - 1;
if (*work++ != L'/')
*(work++) = L'/';
strcpyW(work, relative.ap2);
break;
default:
FIXME("How did we get here????? process_case=%ld\n", process_case);
ret = E_INVALIDARG;
}
if (ret == S_OK) {
/*
* Now that the combining is done, process the escape options if
* necessary, otherwise just copy the string.
*/
myflags = dwFlags & (URL_ESCAPE_PERCENT |
URL_ESCAPE_SPACES_ONLY |
URL_DONT_ESCAPE_EXTRA_INFO |
URL_ESCAPE_SEGMENT_ONLY);
if (myflags)
ret = UrlEscapeW(preliminary, pszCombined,
pcchCombined, myflags);
else {
len = (strlenW(preliminary) + 1) * sizeof(WCHAR);
memcpy(pszCombined, preliminary, len);
*pcchCombined = strlenW(preliminary);
}
TRACE("return-%ld len=%ld, %s\n",
process_case, *pcchCombined, debugstr_w(pszCombined));
}
HeapFree(GetProcessHeap(), 0, preliminary);
return ret;
}
/*************************************************************************
* UrlEscapeA [SHLWAPI.@]
*
* Converts unsafe characters into their escape sequences.
*
* The converted string is returned in pszEscaped if the buffer size
* (which should be supplied in pcchEscaped) is large enough, in this
* case the function returns S_OK and pcchEscaped contains the length
* of the escaped string. If the buffer is not large enough the
* function returns E_POINTER and pcchEscaped contains the required
* buffer size (including room for the '\0').
*
* By default the function stops converting at the first '?' or
* '#'. [MSDN says differently]. If URL_ESCAPE_SPACE_ONLY flag is set
* then only spaces are converted, but the conversion continues past a
* '?' or '#'.
*
* BUGS:
* Have now implemented the following flags:
* URL_ESCAPE_SPACES_ONLY
* URL_DONT_ESCAPE_EXTRA_INFO
* URL_ESCAPE_SEGMENT_ONLY
* URL_ESCAPE_PERCENT
* Initial testing seems to indicate that this is now working like
* native shlwapi version 5. Note that these functions did not work
* well (or at all) in shlwapi version 4.
*
*/
HRESULT WINAPI UrlEscapeA(
LPCSTR pszUrl,
LPSTR pszEscaped,
LPDWORD pcchEscaped,
DWORD dwFlags)
{
LPCSTR src;
DWORD needed = 0, ret;
BOOL stop_escaping = FALSE;
char next[3], *dst = pszEscaped;
char hex[] = "0123456789ABCDEF";
INT len;
TRACE("(%s %p %p 0x%08lx)\n", debugstr_a(pszUrl), pszEscaped,
pcchEscaped, dwFlags);
if(dwFlags & ~(URL_ESCAPE_SPACES_ONLY |
URL_ESCAPE_SEGMENT_ONLY |
URL_DONT_ESCAPE_EXTRA_INFO |
URL_ESCAPE_PERCENT))
FIXME("Unimplemented flags: %08lx\n", dwFlags);
/* fix up flags */
if (dwFlags & URL_ESCAPE_SPACES_ONLY)
/* if SPACES_ONLY specified, reset the other controls */
dwFlags &= ~(URL_DONT_ESCAPE_EXTRA_INFO |
URL_ESCAPE_PERCENT |
URL_ESCAPE_SEGMENT_ONLY);
else
/* if SPACES_ONLY *not* specified the assume DONT_ESCAPE_EXTRA_INFO */
dwFlags |= URL_DONT_ESCAPE_EXTRA_INFO;
for(src = pszUrl; *src; src++) {
if(!(dwFlags & URL_ESCAPE_SEGMENT_ONLY) &&
(dwFlags & URL_DONT_ESCAPE_EXTRA_INFO) &&
(*src == '#' || *src == '?'))
stop_escaping = TRUE;
if(URL_NeedEscapeA(*src, dwFlags) && stop_escaping == FALSE) {
/* TRACE("escaping %c\n", *src); */
next[0] = '%';
next[1] = hex[(*src >> 4) & 0xf];
next[2] = hex[*src & 0xf];
len = 3;
} else {
/* TRACE("passing %c\n", *src); */
next[0] = *src;
len = 1;
}
if(needed + len <= *pcchEscaped) {
memcpy(dst, next, len);
dst += len;
}
needed += len;
}
if(needed < *pcchEscaped) {
*dst = '\0';
ret = S_OK;
} else {
needed++; /* add one for the '\0' */
ret = E_POINTER;
}
*pcchEscaped = needed;
return ret;
}
/*************************************************************************
* UrlEscapeW [SHLWAPI.@]
*
* See UrlEscapeA for list of assumptions, bugs, and FIXMEs
*/
HRESULT WINAPI UrlEscapeW(
LPCWSTR pszUrl,
LPWSTR pszEscaped,
LPDWORD pcchEscaped,
DWORD dwFlags)
{
LPCWSTR src;
DWORD needed = 0, ret;
BOOL stop_escaping = FALSE;
WCHAR next[5], *dst = pszEscaped;
CHAR hex[] = "0123456789ABCDEF";
INT len;
TRACE("(%s %p %p 0x%08lx)\n", debugstr_w(pszUrl), pszEscaped,
pcchEscaped, dwFlags);
if(dwFlags & ~(URL_ESCAPE_SPACES_ONLY |
URL_ESCAPE_SEGMENT_ONLY |
URL_DONT_ESCAPE_EXTRA_INFO |
URL_ESCAPE_PERCENT))
FIXME("Unimplemented flags: %08lx\n", dwFlags);
/* fix up flags */
if (dwFlags & URL_ESCAPE_SPACES_ONLY)
/* if SPACES_ONLY specified, reset the other controls */
dwFlags &= ~(URL_DONT_ESCAPE_EXTRA_INFO |
URL_ESCAPE_PERCENT |
URL_ESCAPE_SEGMENT_ONLY);
else
/* if SPACES_ONLY *not* specified the assume DONT_ESCAPE_EXTRA_INFO */
dwFlags |= URL_DONT_ESCAPE_EXTRA_INFO;
for(src = pszUrl; *src; src++) {
/*
* if(!(dwFlags & URL_ESCAPE_SPACES_ONLY) &&
* (*src == L'#' || *src == L'?'))
* stop_escaping = TRUE;
*/
if(!(dwFlags & URL_ESCAPE_SEGMENT_ONLY) &&
(dwFlags & URL_DONT_ESCAPE_EXTRA_INFO) &&
(*src == L'#' || *src == L'?'))
stop_escaping = TRUE;
if(URL_NeedEscapeW(*src, dwFlags) && stop_escaping == FALSE) {
/* TRACE("escaping %c\n", *src); */
next[0] = L'%';
/*
* I would have assumed that the W form would escape
* the character with 4 hex digits (or even 8),
* however, experiments show that native shlwapi escapes
* with only 2 hex digits.
* next[1] = hex[(*src >> 12) & 0xf];
* next[2] = hex[(*src >> 8) & 0xf];
* next[3] = hex[(*src >> 4) & 0xf];
* next[4] = hex[*src & 0xf];
* len = 5;
*/
next[1] = hex[(*src >> 4) & 0xf];
next[2] = hex[*src & 0xf];
len = 3;
} else {
/* TRACE("passing %c\n", *src); */
next[0] = *src;
len = 1;
}
if(needed + len <= *pcchEscaped) {
memcpy(dst, next, len*sizeof(WCHAR));
dst += len;
}
needed += len;
}
if(needed < *pcchEscaped) {
*dst = L'\0';
ret = S_OK;
} else {
needed++; /* add one for the '\0' */
ret = E_POINTER;
}
*pcchEscaped = needed;
return ret;
}
/*************************************************************************
* UrlUnescapeA [SHLWAPI.@]
*
* Converts escape sequences back to ordinary characters.
*
* If URL_ESCAPE_INPLACE is set in dwFlags then pszUnescaped and
* pcchUnescaped are ignored and the converted string is returned in
* pszUrl, otherwise the string is returned in pszUnescaped.
* pcchUnescaped should contain the size of pszUnescaped on calling
* and will contain the length the the returned string on return if
* the buffer is big enough else it will contain the buffer size
* required (including room for the '\0'). The function returns S_OK
* on success or E_POINTER if the buffer is not large enough. If the
* URL_DONT_ESCAPE_EXTRA_INFO flag is set then the conversion stops at
* the first occurrence of either '?' or '#'.
*
*/
HRESULT WINAPI UrlUnescapeA(
LPCSTR pszUrl,
LPSTR pszUnescaped,
LPDWORD pcchUnescaped,
DWORD dwFlags)
{
char *dst, next;
LPCSTR src;
HRESULT ret;
DWORD needed;
BOOL stop_unescaping = FALSE;
TRACE("(%s, %p, %p, 0x%08lx)\n", debugstr_a(pszUrl), pszUnescaped,
pcchUnescaped, dwFlags);
if(dwFlags & URL_UNESCAPE_INPLACE)
dst = (char*)pszUrl;
else
dst = pszUnescaped;
for(src = pszUrl, needed = 0; *src; src++, needed++) {
if(dwFlags & URL_DONT_UNESCAPE_EXTRA_INFO &&
(*src == '#' || *src == '?')) {
stop_unescaping = TRUE;
next = *src;
} else if(*src == '%' && isxdigit(*(src + 1)) && isxdigit(*(src + 2))
&& stop_unescaping == FALSE) {
INT ih;
char buf[3];
memcpy(buf, src + 1, 2);
buf[2] = '\0';
ih = strtol(buf, NULL, 16);
next = (CHAR) ih;
src += 2; /* Advance to end of escape */
} else
next = *src;
if(dwFlags & URL_UNESCAPE_INPLACE || needed < *pcchUnescaped)
*dst++ = next;
}
if(dwFlags & URL_UNESCAPE_INPLACE || needed < *pcchUnescaped) {
*dst = '\0';
ret = S_OK;
} else {
needed++; /* add one for the '\0' */
ret = E_POINTER;
}
if(!(dwFlags & URL_UNESCAPE_INPLACE))
*pcchUnescaped = needed;
if (ret == S_OK) {
TRACE("result %s\n", (dwFlags & URL_UNESCAPE_INPLACE) ?
debugstr_a(pszUrl) : debugstr_a(pszUnescaped));
}
return ret;
}
/*************************************************************************
* UrlUnescapeW [SHLWAPI.@]
*
* See UrlUnescapeA for list of assumptions, bugs, and FIXMEs
*/
HRESULT WINAPI UrlUnescapeW(
LPCWSTR pszUrl,
LPWSTR pszUnescaped,
LPDWORD pcchUnescaped,
DWORD dwFlags)
{
WCHAR *dst, next;
LPCWSTR src;
HRESULT ret;
DWORD needed;
BOOL stop_unescaping = FALSE;
TRACE("(%s, %p, %p, 0x%08lx)\n", debugstr_w(pszUrl), pszUnescaped,
pcchUnescaped, dwFlags);
if(dwFlags & URL_UNESCAPE_INPLACE)
dst = (WCHAR*)pszUrl;
else
dst = pszUnescaped;
for(src = pszUrl, needed = 0; *src; src++, needed++) {
if(dwFlags & URL_DONT_UNESCAPE_EXTRA_INFO &&
(*src == L'#' || *src == L'?')) {
stop_unescaping = TRUE;
next = *src;
} else if(*src == L'%' && isxdigitW(*(src + 1)) && isxdigitW(*(src + 2))
&& stop_unescaping == FALSE) {
INT ih;
WCHAR buf[3];
memcpy(buf, src + 1, 2*sizeof(WCHAR));
buf[2] = L'\0';
ih = StrToIntW(buf);
next = (WCHAR) ih;
src += 2; /* Advance to end of escape */
} else
next = *src;
if(dwFlags & URL_UNESCAPE_INPLACE || needed < *pcchUnescaped)
*dst++ = next;
}
if(dwFlags & URL_UNESCAPE_INPLACE || needed < *pcchUnescaped) {
*dst = L'\0';
ret = S_OK;
} else {
needed++; /* add one for the '\0' */
ret = E_POINTER;
}
if(!(dwFlags & URL_UNESCAPE_INPLACE))
*pcchUnescaped = needed;
if (ret == S_OK) {
TRACE("result %s\n", (dwFlags & URL_UNESCAPE_INPLACE) ?
debugstr_w(pszUrl) : debugstr_w(pszUnescaped));
}
return ret;
}
/*************************************************************************
* UrlGetLocationA [SHLWAPI.@]
*
* Bugs/Features:
* MSDN (as of 2001-11-01) says that:
* "The location is the segment of the URL starting with a ?
* or # character."
* Neither V4 nor V5 of shlwapi.dll implement the '?' and always return
* a NULL.
* MSDN further states that:
* "If a file URL has a query string, ther returned string
* the query string."
* In all test cases if the scheme starts with "fi" then a NULL is
* returned. V5 gives the following results:
* NULL file://aa/b/cd#hohoh
* #hohoh http://aa/b/cd#hohoh
* NULL fi://aa/b/cd#hohoh
* #hohoh ff://aa/b/cd#hohoh
*/
LPCSTR WINAPI UrlGetLocationA(
LPCSTR pszUrl)
{
UNKNOWN_SHLWAPI_1 base;
DWORD res1;
base.size = 24;
res1 = SHLWAPI_1(pszUrl, &base);
if (res1) return NULL; /* invalid scheme */
/* if scheme is file: then never return pointer */
if (strncmp(base.ap1, "file", min(4,base.sizep1)) == 0) return NULL;
/* Look for '#' and return its addr */
return strchr(base.ap2, '#');
}
/*************************************************************************
* UrlGetLocationW [SHLWAPI.@]
*
* See UrlGetLocationA for list of assumptions, bugs, and FIXMEs
*/
LPCWSTR WINAPI UrlGetLocationW(
LPCWSTR pszUrl)
{
UNKNOWN_SHLWAPI_2 base;
DWORD res1;
base.size = 24;
res1 = SHLWAPI_2(pszUrl, &base);
if (res1) return NULL; /* invalid scheme */
/* if scheme is file: then never return pointer */
if (strncmpW(base.ap1, fileW, min(4,base.sizep1)) == 0) return NULL;
/* Look for '#' and return its addr */
return strchrW(base.ap2, L'#');
}
/*************************************************************************
* UrlCompareA [SHLWAPI.@]
*/
INT WINAPI UrlCompareA(
LPCSTR pszUrl1,
LPCSTR pszUrl2,
BOOL fIgnoreSlash)
{
INT ret, len, len1, len2;
if (!fIgnoreSlash)
return strcmp(pszUrl1, pszUrl2);
len1 = strlen(pszUrl1);
if (pszUrl1[len1-1] == L'/') len1--;
len2 = strlen(pszUrl2);
if (pszUrl2[len2-1] == L'/') len2--;
if (len1 == len2)
return strncmp(pszUrl1, pszUrl2, len1);
len = min(len1, len2);
ret = strncmp(pszUrl1, pszUrl2, len);
if (ret) return ret;
if (len1 > len2) return 1;
return -1;
}
/*************************************************************************
* UrlCompareW [SHLWAPI.@]
*/
INT WINAPI UrlCompareW(
LPCWSTR pszUrl1,
LPCWSTR pszUrl2,
BOOL fIgnoreSlash)
{
INT ret, len, len1, len2;
if (!fIgnoreSlash)
return strcmpW(pszUrl1, pszUrl2);
len1 = strlenW(pszUrl1);
if (pszUrl1[len1-1] == L'/') len1--;
len2 = strlenW(pszUrl2);
if (pszUrl2[len2-1] == L'/') len2--;
if (len1 == len2)
return strncmpW(pszUrl1, pszUrl2, len1);
len = min(len1, len2);
ret = strncmpW(pszUrl1, pszUrl2, len);
if (ret) return ret;
if (len1 > len2) return 1;
return -1;
}
/*************************************************************************
* HashData [SHLWAPI.@]
*
* Hash an input block into a variable sized digest.
*/
BOOL WINAPI HashData(const unsigned char *lpSrc, INT nSrcLen,
unsigned char *lpDest, INT nDestLen)
{
INT srcCount = nSrcLen - 1, destCount = nDestLen - 1;
if (IsBadReadPtr(lpSrc, nSrcLen) ||
IsBadWritePtr(lpDest, nDestLen))
return FALSE;
while (destCount >= 0)
{
lpDest[destCount] = (destCount & 0xff);
destCount--;
}
while (srcCount >= 0)
{
destCount = nDestLen - 1;
while (destCount >= 0)
{
lpDest[destCount] = HashDataLookup[lpSrc[srcCount] ^ lpDest[destCount]];
destCount--;
}
srcCount--;
}
return TRUE;
}
/*************************************************************************
* UrlHashA [SHLWAPI.@]
*
* Hash an ASCII URL.
*/
HRESULT WINAPI UrlHashA(LPCSTR pszUrl, unsigned char *lpDest, INT nDestLen)
{
if (IsBadStringPtrA(pszUrl, -1) || IsBadWritePtr(lpDest, nDestLen))
return E_INVALIDARG;
HashData(pszUrl, strlen(pszUrl), lpDest, nDestLen);
return NOERROR;
}
/*************************************************************************
* UrlApplySchemeA [SHLWAPI.@]
*/
HRESULT WINAPI UrlApplySchemeA(LPCSTR pszIn, LPSTR pszOut, LPDWORD pcchOut, DWORD dwFlags)
{
LPWSTR in, out;
DWORD ret, len, len2;
TRACE("(in %s, out size %ld, flags %08lx) using W version\n",
debugstr_a(pszIn), *pcchOut, dwFlags);
in = (LPWSTR) HeapAlloc(GetProcessHeap(), 0,
(2*INTERNET_MAX_URL_LENGTH) * sizeof(WCHAR));
out = in + INTERNET_MAX_URL_LENGTH;
MultiByteToWideChar(0, 0, pszIn, -1, in, INTERNET_MAX_URL_LENGTH);
len = INTERNET_MAX_URL_LENGTH;
ret = UrlApplySchemeW(in, out, &len, dwFlags);
if ((ret != S_OK) && (ret != S_FALSE)) {
HeapFree(GetProcessHeap(), 0, in);
return ret;
}
len2 = WideCharToMultiByte(0, 0, out, len+1, 0, 0, 0, 0);
if (len2 > *pcchOut) {
*pcchOut = len2;
HeapFree(GetProcessHeap(), 0, in);
return E_POINTER;
}
WideCharToMultiByte(0, 0, out, len+1, pszOut, *pcchOut, 0, 0);
*pcchOut = len2;
HeapFree(GetProcessHeap(), 0, in);
return ret;
}
HRESULT URL_GuessScheme(LPCWSTR pszIn, LPWSTR pszOut, LPDWORD pcchOut)
{
HKEY newkey;
BOOL j;
INT index, i;
DWORD value_len, data_len, dwType;
WCHAR reg_path[MAX_PATH];
WCHAR value[MAX_PATH], data[MAX_PATH];
WCHAR Wxx, Wyy;
MultiByteToWideChar(0, 0,
"Software\\Microsoft\\Windows\\CurrentVersion\\URL\\Prefixes",
-1, reg_path, MAX_PATH);
RegOpenKeyExW(HKEY_LOCAL_MACHINE, reg_path, 0, 1, &newkey);
index = 0;
while(value_len = data_len = MAX_PATH,
RegEnumValueW(newkey, index, value, &value_len,
0, &dwType, (LPVOID)data, &data_len) == 0) {
TRACE("guess %d %s is %s\n",
index, debugstr_w(value), debugstr_w(data));
j = FALSE;
for(i=0; i<value_len; i++) {
Wxx = pszIn[i];
Wyy = value[i];
/* remember that TRUE is not-equal */
j = ChrCmpIW(Wxx, Wyy);
if (j) break;
}
if ((i == value_len) && !j) {
if (strlenW(data) + strlenW(pszIn) + 1 > *pcchOut) {
*pcchOut = strlenW(data) + strlenW(pszIn) + 1;
RegCloseKey(newkey);
return E_POINTER;
}
strcpyW(pszOut, data);
strcatW(pszOut, pszIn);
*pcchOut = strlenW(pszOut);
TRACE("matched and set to %s\n", debugstr_w(pszOut));
RegCloseKey(newkey);
return S_OK;
}
index++;
}
RegCloseKey(newkey);
return -1;
}
HRESULT URL_ApplyDefault(LPCWSTR pszIn, LPWSTR pszOut, LPDWORD pcchOut)
{
HKEY newkey;
DWORD data_len, dwType;
WCHAR reg_path[MAX_PATH];
WCHAR value[MAX_PATH], data[MAX_PATH];
/* get and prepend default */
MultiByteToWideChar(0, 0,
"Software\\Microsoft\\Windows\\CurrentVersion\\URL\\DefaultPrefix",
-1, reg_path, MAX_PATH);
RegOpenKeyExW(HKEY_LOCAL_MACHINE, reg_path, 0, 1, &newkey);
data_len = MAX_PATH;
value[0] = L'@';
value[1] = L'\0';
RegQueryValueExW(newkey, value, 0, &dwType, (LPBYTE)data, &data_len);
RegCloseKey(newkey);
if (strlenW(data) + strlenW(pszIn) + 1 > *pcchOut) {
*pcchOut = strlenW(data) + strlenW(pszIn) + 1;
return E_POINTER;
}
strcpyW(pszOut, data);
strcatW(pszOut, pszIn);
*pcchOut = strlenW(pszOut);
TRACE("used default %s\n", debugstr_w(pszOut));
return S_OK;
}
/*************************************************************************
* UrlApplySchemeW [SHLWAPI.@]
*/
HRESULT WINAPI UrlApplySchemeW(LPCWSTR pszIn, LPWSTR pszOut, LPDWORD pcchOut, DWORD dwFlags)
{
UNKNOWN_SHLWAPI_2 in_scheme;
DWORD res1;
HRESULT ret;
TRACE("(in %s, out size %ld, flags %08lx)\n",
debugstr_w(pszIn), *pcchOut, dwFlags);
if (dwFlags & URL_APPLY_GUESSFILE) {
FIXME("(%s %p %p(%ld) 0x%08lx): stub URL_APPLY_GUESSFILE not implemented\n",
debugstr_w(pszIn), pszOut, pcchOut, *pcchOut, dwFlags);
strcpyW(pszOut, pszIn);
*pcchOut = strlenW(pszOut);
return S_FALSE;
}
in_scheme.size = 24;
/* See if the base has a scheme */
res1 = SHLWAPI_2(pszIn, &in_scheme);
if (res1) {
/* no scheme in input, need to see if we need to guess */
if (dwFlags & URL_APPLY_GUESSSCHEME) {
if ((ret = URL_GuessScheme(pszIn, pszOut, pcchOut)) != -1)
return ret;
}
}
else {
/* we have a scheme, see if valid (known scheme) */
if (in_scheme.fcncde) {
/* have valid scheme, so just copy and exit */
if (strlenW(pszIn) + 1 > *pcchOut) {
*pcchOut = strlenW(pszIn) + 1;
return E_POINTER;
}
strcpyW(pszOut, pszIn);
*pcchOut = strlenW(pszOut);
TRACE("valid scheme, returing copy\n");
return S_OK;
}
}
/* If we are here, then either invalid scheme,
* or no scheme and can't/failed guess.
*/
if ( ( ((res1 == 0) && (dwFlags & URL_APPLY_FORCEAPPLY)) ||
((res1 != 0)) ) &&
(dwFlags & URL_APPLY_DEFAULT)) {
/* find and apply default scheme */
return URL_ApplyDefault(pszIn, pszOut, pcchOut);
}
/* just copy and give proper return code */
if (strlenW(pszIn) + 1 > *pcchOut) {
*pcchOut = strlenW(pszIn) + 1;
return E_POINTER;
}
strcpyW(pszOut, pszIn);
*pcchOut = strlenW(pszOut);
TRACE("returing copy, left alone\n");
return S_FALSE;
}
/*************************************************************************
* UrlIsA [SHLWAPI.@]
*/
BOOL WINAPI UrlIsA(LPCSTR pszUrl, URLIS Urlis)
{
UNKNOWN_SHLWAPI_1 base;
DWORD res1;
switch (Urlis) {
case URLIS_OPAQUE:
base.size = 24;
res1 = SHLWAPI_1(pszUrl, &base);
if (res1) return FALSE; /* invalid scheme */
if ((*base.ap2 == '/') && (*(base.ap2+1) == '/'))
/* has scheme followed by 2 '/' */
return FALSE;
return TRUE;
case URLIS_URL:
case URLIS_NOHISTORY:
case URLIS_FILEURL:
case URLIS_APPLIABLE:
case URLIS_DIRECTORY:
case URLIS_HASQUERY:
default:
FIXME("(%s %d): stub\n", debugstr_a(pszUrl), Urlis);
}
return FALSE;
}
/*************************************************************************
* UrlIsW [SHLWAPI.@]
*/
BOOL WINAPI UrlIsW(LPCWSTR pszUrl, URLIS Urlis)
{
UNKNOWN_SHLWAPI_2 base;
DWORD res1;
switch (Urlis) {
case URLIS_OPAQUE:
base.size = 24;
res1 = SHLWAPI_2(pszUrl, &base);
if (res1) return FALSE; /* invalid scheme */
if ((*base.ap2 == L'/') && (*(base.ap2+1) == L'/'))
/* has scheme followed by 2 '/' */
return FALSE;
return TRUE;
case URLIS_URL:
case URLIS_NOHISTORY:
case URLIS_FILEURL:
case URLIS_APPLIABLE:
case URLIS_DIRECTORY:
case URLIS_HASQUERY:
default:
FIXME("(%s %d): stub\n", debugstr_w(pszUrl), Urlis);
}
return FALSE;
}
/*************************************************************************
* UrlIsNoHistoryA [SHLWAPI.@]
*/
BOOL WINAPI UrlIsNoHistoryA(LPCSTR pszUrl)
{
return UrlIsA(pszUrl, URLIS_NOHISTORY);
}
/*************************************************************************
* UrlIsNoHistoryW [SHLWAPI.@]
*/
BOOL WINAPI UrlIsNoHistoryW(LPCWSTR pszUrl)
{
return UrlIsW(pszUrl, URLIS_NOHISTORY);
}
/*************************************************************************
* UrlIsOpaqueA [SHLWAPI.@]
*/
BOOL WINAPI UrlIsOpaqueA(LPCSTR pszUrl)
{
return UrlIsA(pszUrl, URLIS_OPAQUE);
}
/*************************************************************************
* UrlIsOpaqueW [SHLWAPI.@]
*/
BOOL WINAPI UrlIsOpaqueW(LPCWSTR pszUrl)
{
return UrlIsW(pszUrl, URLIS_OPAQUE);
}
/*************************************************************************
* Scans for characters of type "type" and when not matching found,
* returns pointer to it and length in size.
*
* Characters tested based on RFC 1738
*/
LPCWSTR URL_ScanID(LPCWSTR start, LPDWORD size, WINE_URL_SCAN_TYPE type)
{
static DWORD alwayszero = 0;
BOOL cont = TRUE;
*size = 0;
switch(type){
case SCHEME:
while (cont) {
if ( (islowerW(*start) && isalphaW(*start)) ||
isdigitW(*start) ||
(*start == L'+') ||
(*start == L'-') ||
(*start == L'.')) {
start++;
(*size)++;
}
else
cont = FALSE;
}
break;
case USERPASS:
while (cont) {
if ( isalphaW(*start) ||
isdigitW(*start) ||
/* user/password only characters */
(*start == L';') ||
(*start == L'?') ||
(*start == L'&') ||
(*start == L'=') ||
/* *extra* characters */
(*start == L'!') ||
(*start == L'*') ||
(*start == L'\'') ||
(*start == L'(') ||
(*start == L')') ||
(*start == L',') ||
/* *safe* characters */
(*start == L'$') ||
(*start == L'_') ||
(*start == L'+') ||
(*start == L'-') ||
(*start == L'.')) {
start++;
(*size)++;
} else if (*start == L'%') {
if (isxdigitW(*(start+1)) &&
isxdigitW(*(start+2))) {
start += 3;
*size += 3;
} else
cont = FALSE;
} else
cont = FALSE;
}
break;
case PORT:
while (cont) {
if (isdigitW(*start)) {
start++;
(*size)++;
}
else
cont = FALSE;
}
break;
case HOST:
while (cont) {
if (isalnumW(*start) ||
(*start == L'-') ||
(*start == L'.') ) {
start++;
(*size)++;
}
else
cont = FALSE;
}
break;
default:
FIXME("unknown type %d\n", type);
return (LPWSTR)&alwayszero;
}
/* TRACE("scanned %ld characters next char %p<%c>\n",
*size, start, *start); */
return start;
}
/*************************************************************************
* Attempt to parse URL into pieces.
*/
LONG URL_ParseUrl(LPCWSTR pszUrl, WINE_PARSE_URL *pl)
{
LPCWSTR work;
memset(pl, 0, sizeof(WINE_PARSE_URL));
pl->pScheme = pszUrl;
work = URL_ScanID(pl->pScheme, &pl->szScheme, SCHEME);
if (!*work || (*work != L':')) goto ERROR;
work++;
if ((*work != L'/') || (*(work+1) != L'/')) goto ERROR;
pl->pUserName = work + 2;
work = URL_ScanID(pl->pUserName, &pl->szUserName, USERPASS);
if (*work == L':' ) {
/* parse password */
work++;
pl->pPassword = work;
work = URL_ScanID(pl->pPassword, &pl->szPassword, USERPASS);
if (*work != L'@') {
/* what we just parsed must be the hostname and port
* so reset pointers and clear then let it parse */
pl->szUserName = pl->szPassword = 0;
work = pl->pUserName - 1;
pl->pUserName = pl->pPassword = 0;
}
} else if (*work == L'@') {
/* no password */
pl->szPassword = 0;
pl->pPassword = 0;
} else if (!*work || (*work == L'/') || (*work == L'.')) {
/* what was parsed was hostname, so reset pointers and let it parse */
pl->szUserName = pl->szPassword = 0;
work = pl->pUserName - 1;
pl->pUserName = pl->pPassword = 0;
} else goto ERROR;
/* now start parsing hostname or hostnumber */
work++;
pl->pHostName = work;
work = URL_ScanID(pl->pHostName, &pl->szHostName, HOST);
if (*work == L':') {
/* parse port */
work++;
pl->pPort = work;
work = URL_ScanID(pl->pPort, &pl->szPort, PORT);
}
if (*work == L'/') {
/* see if query string */
pl->pQuery = strchrW(work, L'?');
if (pl->pQuery) pl->szQuery = strlenW(pl->pQuery);
}
TRACE("parse successful: scheme=%p(%ld), user=%p(%ld), pass=%p(%ld), host=%p(%ld), port=%p(%ld), query=%p(%ld)\n",
pl->pScheme, pl->szScheme,
pl->pUserName, pl->szUserName,
pl->pPassword, pl->szPassword,
pl->pHostName, pl->szHostName,
pl->pPort, pl->szPort,
pl->pQuery, pl->szQuery);
return S_OK;
ERROR:
FIXME("failed to parse %s\n", debugstr_w(pszUrl));
return E_INVALIDARG;
}
/*************************************************************************
* UrlGetPartA [SHLWAPI.@]
*/
HRESULT WINAPI UrlGetPartA(LPCSTR pszIn, LPSTR pszOut, LPDWORD pcchOut,
DWORD dwPart, DWORD dwFlags)
{
LPWSTR in, out;
DWORD ret, len, len2;
in = (LPWSTR) HeapAlloc(GetProcessHeap(), 0,
(2*INTERNET_MAX_URL_LENGTH) * sizeof(WCHAR));
out = in + INTERNET_MAX_URL_LENGTH;
MultiByteToWideChar(0, 0, pszIn, -1, in, INTERNET_MAX_URL_LENGTH);
len = INTERNET_MAX_URL_LENGTH;
ret = UrlGetPartW(in, out, &len, dwPart, dwFlags);
if (ret != S_OK) {
HeapFree(GetProcessHeap(), 0, in);
return ret;
}
len2 = WideCharToMultiByte(0, 0, out, len, 0, 0, 0, 0);
if (len2 > *pcchOut) {
*pcchOut = len2;
HeapFree(GetProcessHeap(), 0, in);
return E_POINTER;
}
WideCharToMultiByte(0, 0, out, len+1, pszOut, *pcchOut, 0, 0);
*pcchOut = len2;
HeapFree(GetProcessHeap(), 0, in);
return S_OK;
}
/*************************************************************************
* UrlGetPartW [SHLWAPI.@]
*/
HRESULT WINAPI UrlGetPartW(LPCWSTR pszIn, LPWSTR pszOut, LPDWORD pcchOut,
DWORD dwPart, DWORD dwFlags)
{
WINE_PARSE_URL pl;
HRESULT ret;
DWORD size, schsize;
LPCWSTR addr, schaddr;
LPWSTR work;
TRACE("(%s %p %p(%ld) %08lx %08lx)\n",
debugstr_w(pszIn), pszOut, pcchOut, *pcchOut, dwPart, dwFlags);
ret = URL_ParseUrl(pszIn, &pl);
if (!ret) {
schaddr = pl.pScheme;
schsize = pl.szScheme;
switch (dwPart) {
case URL_PART_SCHEME:
if (!pl.szScheme) return E_INVALIDARG;
addr = pl.pScheme;
size = pl.szScheme;
break;
case URL_PART_HOSTNAME:
if (!pl.szHostName) return E_INVALIDARG;
addr = pl.pHostName;
size = pl.szHostName;
break;
case URL_PART_USERNAME:
if (!pl.szUserName) return E_INVALIDARG;
addr = pl.pUserName;
size = pl.szUserName;
break;
case URL_PART_PASSWORD:
if (!pl.szPassword) return E_INVALIDARG;
addr = pl.pPassword;
size = pl.szPassword;
break;
case URL_PART_PORT:
if (!pl.szPort) return E_INVALIDARG;
addr = pl.pPort;
size = pl.szPort;
break;
case URL_PART_QUERY:
if (!pl.szQuery) return E_INVALIDARG;
addr = pl.pQuery;
size = pl.szQuery;
break;
default:
return E_INVALIDARG;
}
if (dwFlags == URL_PARTFLAG_KEEPSCHEME) {
if (*pcchOut < size + schsize + 2) {
*pcchOut = size + schsize + 2;
return E_POINTER;
}
strncpyW(pszOut, schaddr, schsize);
work = pszOut + schsize;
*work = L':';
strncpyW(work+1, addr, size);
*pcchOut = size + schsize + 1;
work += (size + 1);
*work = L'\0';
}
else {
if (*pcchOut < size + 1) {*pcchOut = size+1; return E_POINTER;}
strncpyW(pszOut, addr, size);
*pcchOut = size;
work = pszOut + size;
*work = L'\0';
}
TRACE("len=%ld %s\n", *pcchOut, debugstr_w(pszOut));
}
return ret;
}
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