Sweden-Number/dlls/urlmon/protocol.c

438 lines
14 KiB
C
Raw Normal View History

/*
* Copyright 2007 Misha Koshelev
* Copyright 2009 Jacek Caban for CodeWeavers
*
* 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 "urlmon_main.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(urlmon);
/* Flags are needed for, among other things, return HRESULTs from the Read function
* to conform to native. For example, Read returns:
*
* 1. E_PENDING if called before the request has completed,
* (flags = 0)
* 2. S_FALSE after all data has been read and S_OK has been reported,
* (flags = FLAG_REQUEST_COMPLETE | FLAG_ALL_DATA_READ | FLAG_RESULT_REPORTED)
* 3. INET_E_DATA_NOT_AVAILABLE if InternetQueryDataAvailable fails. The first time
* this occurs, INET_E_DATA_NOT_AVAILABLE will also be reported to the sink,
* (flags = FLAG_REQUEST_COMPLETE)
* but upon subsequent calls to Read no reporting will take place, yet
* InternetQueryDataAvailable will still be called, and, on failure,
* INET_E_DATA_NOT_AVAILABLE will still be returned.
* (flags = FLAG_REQUEST_COMPLETE | FLAG_RESULT_REPORTED)
*
* FLAG_FIRST_DATA_REPORTED and FLAG_LAST_DATA_REPORTED are needed for proper
* ReportData reporting. For example, if OnResponse returns S_OK, Continue will
* report BSCF_FIRSTDATANOTIFICATION, and when all data has been read Read will
* report BSCF_INTERMEDIATEDATANOTIFICATION|BSCF_LASTDATANOTIFICATION. However,
* if OnResponse does not return S_OK, Continue will not report data, and Read
* will report BSCF_FIRSTDATANOTIFICATION|BSCF_LASTDATANOTIFICATION when all
* data has been read.
*/
#define FLAG_REQUEST_COMPLETE 0x0001
#define FLAG_FIRST_CONTINUE_COMPLETE 0x0002
#define FLAG_FIRST_DATA_REPORTED 0x0004
#define FLAG_ALL_DATA_READ 0x0008
#define FLAG_LAST_DATA_REPORTED 0x0010
#define FLAG_RESULT_REPORTED 0x0020
static inline HRESULT report_progress(Protocol *protocol, ULONG status_code, LPCWSTR status_text)
{
return IInternetProtocolSink_ReportProgress(protocol->protocol_sink, status_code, status_text);
}
static inline HRESULT report_result(Protocol *protocol, HRESULT hres)
{
if (!(protocol->flags & FLAG_RESULT_REPORTED) && protocol->protocol_sink) {
protocol->flags |= FLAG_RESULT_REPORTED;
IInternetProtocolSink_ReportResult(protocol->protocol_sink, hres, 0, NULL);
}
return hres;
}
static void report_data(Protocol *protocol)
{
DWORD bscf;
if((protocol->flags & FLAG_LAST_DATA_REPORTED) || !protocol->protocol_sink)
return;
if(protocol->flags & FLAG_FIRST_DATA_REPORTED) {
bscf = BSCF_INTERMEDIATEDATANOTIFICATION;
}else {
protocol->flags |= FLAG_FIRST_DATA_REPORTED;
bscf = BSCF_FIRSTDATANOTIFICATION;
}
if(protocol->flags & FLAG_ALL_DATA_READ && !(protocol->flags & FLAG_LAST_DATA_REPORTED)) {
protocol->flags |= FLAG_LAST_DATA_REPORTED;
bscf |= BSCF_LASTDATANOTIFICATION;
}
IInternetProtocolSink_ReportData(protocol->protocol_sink, bscf,
protocol->current_position+protocol->available_bytes,
protocol->content_length);
}
static void all_data_read(Protocol *protocol)
{
protocol->flags |= FLAG_ALL_DATA_READ;
report_data(protocol);
report_result(protocol, S_OK);
}
static void request_complete(Protocol *protocol, INTERNET_ASYNC_RESULT *ar)
{
PROTOCOLDATA data;
if(!ar->dwResult) {
WARN("request failed: %d\n", ar->dwError);
return;
}
protocol->flags |= FLAG_REQUEST_COMPLETE;
if(!protocol->request) {
TRACE("setting request handle %p\n", (HINTERNET)ar->dwResult);
protocol->request = (HINTERNET)ar->dwResult;
}
/* PROTOCOLDATA same as native */
memset(&data, 0, sizeof(data));
data.dwState = 0xf1000000;
if(protocol->flags & FLAG_FIRST_CONTINUE_COMPLETE)
data.pData = (LPVOID)BINDSTATUS_ENDDOWNLOADCOMPONENTS;
else
data.pData = (LPVOID)BINDSTATUS_DOWNLOADINGDATA;
if (protocol->bindf & BINDF_FROMURLMON)
IInternetProtocolSink_Switch(protocol->protocol_sink, &data);
else
protocol_continue(protocol, &data);
}
static void WINAPI internet_status_callback(HINTERNET internet, DWORD_PTR context,
DWORD internet_status, LPVOID status_info, DWORD status_info_len)
{
Protocol *protocol = (Protocol*)context;
switch(internet_status) {
case INTERNET_STATUS_RESOLVING_NAME:
TRACE("%p INTERNET_STATUS_RESOLVING_NAME\n", protocol);
report_progress(protocol, BINDSTATUS_FINDINGRESOURCE, (LPWSTR)status_info);
break;
case INTERNET_STATUS_CONNECTING_TO_SERVER:
TRACE("%p INTERNET_STATUS_CONNECTING_TO_SERVER\n", protocol);
report_progress(protocol, BINDSTATUS_CONNECTING, (LPWSTR)status_info);
break;
case INTERNET_STATUS_SENDING_REQUEST:
TRACE("%p INTERNET_STATUS_SENDING_REQUEST\n", protocol);
report_progress(protocol, BINDSTATUS_SENDINGREQUEST, (LPWSTR)status_info);
break;
case INTERNET_STATUS_REQUEST_COMPLETE:
request_complete(protocol, status_info);
break;
case INTERNET_STATUS_HANDLE_CREATED:
TRACE("%p INTERNET_STATUS_HANDLE_CREATED\n", protocol);
IInternetProtocol_AddRef(protocol->protocol);
break;
case INTERNET_STATUS_HANDLE_CLOSING:
TRACE("%p INTERNET_STATUS_HANDLE_CLOSING\n", protocol);
if(*(HINTERNET *)status_info == protocol->request) {
protocol->request = NULL;
if(protocol->protocol_sink) {
IInternetProtocolSink_Release(protocol->protocol_sink);
protocol->protocol_sink = NULL;
}
if(protocol->bind_info.cbSize) {
ReleaseBindInfo(&protocol->bind_info);
memset(&protocol->bind_info, 0, sizeof(protocol->bind_info));
}
}else if(*(HINTERNET *)status_info == protocol->connection) {
protocol->connection = NULL;
}
IInternetProtocol_Release(protocol->protocol);
break;
default:
WARN("Unhandled Internet status callback %d\n", internet_status);
}
}
static HINTERNET create_internet_session(IInternetBindInfo *bind_info)
{
LPWSTR global_user_agent = NULL;
LPOLESTR user_agent = NULL;
ULONG size = 0;
HINTERNET ret;
HRESULT hres;
hres = IInternetBindInfo_GetBindString(bind_info, BINDSTRING_USER_AGENT, &user_agent, 1, &size);
if(hres != S_OK || !size)
global_user_agent = get_useragent();
ret = InternetOpenW(user_agent ? user_agent : global_user_agent, 0, NULL, NULL, INTERNET_FLAG_ASYNC);
heap_free(global_user_agent);
CoTaskMemFree(user_agent);
if(!ret) {
WARN("InternetOpen failed: %d\n", GetLastError());
return NULL;
}
InternetSetStatusCallbackW(ret, internet_status_callback);
return ret;
}
static HINTERNET internet_session;
HINTERNET get_internet_session(IInternetBindInfo *bind_info)
{
HINTERNET new_session;
if(internet_session)
return internet_session;
if(!bind_info)
return NULL;
new_session = create_internet_session(bind_info);
if(new_session && InterlockedCompareExchangePointer((void**)&internet_session, new_session, NULL))
InternetCloseHandle(new_session);
return internet_session;
}
HRESULT protocol_start(Protocol *protocol, IInternetProtocol *prot, LPCWSTR url,
IInternetProtocolSink *protocol_sink, IInternetBindInfo *bind_info)
{
DWORD request_flags;
HRESULT hres;
protocol->protocol = prot;
IInternetProtocolSink_AddRef(protocol_sink);
protocol->protocol_sink = protocol_sink;
memset(&protocol->bind_info, 0, sizeof(protocol->bind_info));
protocol->bind_info.cbSize = sizeof(BINDINFO);
hres = IInternetBindInfo_GetBindInfo(bind_info, &protocol->bindf, &protocol->bind_info);
if(hres != S_OK) {
WARN("GetBindInfo failed: %08x\n", hres);
return report_result(protocol, hres);
}
if(!(protocol->bindf & BINDF_FROMURLMON))
report_progress(protocol, BINDSTATUS_DIRECTBIND, NULL);
if(!get_internet_session(bind_info))
return report_result(protocol, INET_E_NO_SESSION);
request_flags = INTERNET_FLAG_KEEP_CONNECTION;
if(protocol->bindf & BINDF_NOWRITECACHE)
request_flags |= INTERNET_FLAG_NO_CACHE_WRITE;
if(protocol->bindf & BINDF_NEEDFILE)
request_flags |= INTERNET_FLAG_NEED_FILE;
hres = protocol->vtbl->open_request(protocol, url, request_flags, internet_session, bind_info);
if(FAILED(hres)) {
protocol_close_connection(protocol);
return report_result(protocol, hres);
}
return S_OK;
}
HRESULT protocol_continue(Protocol *protocol, PROTOCOLDATA *data)
{
HRESULT hres;
if (!data) {
WARN("Expected pProtocolData to be non-NULL\n");
return S_OK;
}
if(!protocol->request) {
WARN("Expected request to be non-NULL\n");
return S_OK;
}
if(!protocol->protocol_sink) {
WARN("Expected IInternetProtocolSink pointer to be non-NULL\n");
return S_OK;
}
if(data->pData == (LPVOID)BINDSTATUS_DOWNLOADINGDATA) {
hres = protocol->vtbl->start_downloading(protocol);
if(FAILED(hres)) {
protocol_close_connection(protocol);
report_result(protocol, hres);
return S_OK;
}
if(protocol->bindf & BINDF_NEEDFILE) {
WCHAR cache_file[MAX_PATH];
DWORD buflen = sizeof(cache_file);
if(InternetQueryOptionW(protocol->request, INTERNET_OPTION_DATAFILE_NAME,
cache_file, &buflen)) {
report_progress(protocol, BINDSTATUS_CACHEFILENAMEAVAILABLE, cache_file);
}else {
FIXME("Could not get cache file\n");
}
}
protocol->flags |= FLAG_FIRST_CONTINUE_COMPLETE;
}
if(data->pData >= (LPVOID)BINDSTATUS_DOWNLOADINGDATA) {
BOOL res;
/* InternetQueryDataAvailable may immediately fork and perform its asynchronous
* read, so clear the flag _before_ calling so it does not incorrectly get cleared
* after the status callback is called */
protocol->flags &= ~FLAG_REQUEST_COMPLETE;
res = InternetQueryDataAvailable(protocol->request, &protocol->available_bytes, 0, 0);
if(res) {
protocol->flags |= FLAG_REQUEST_COMPLETE;
report_data(protocol);
}else if(GetLastError() != ERROR_IO_PENDING) {
protocol->flags |= FLAG_REQUEST_COMPLETE;
WARN("InternetQueryDataAvailable failed: %d\n", GetLastError());
report_result(protocol, INET_E_DATA_NOT_AVAILABLE);
}
}
return S_OK;
}
HRESULT protocol_read(Protocol *protocol, void *buf, ULONG size, ULONG *read_ret)
{
ULONG read = 0;
BOOL res;
HRESULT hres = S_FALSE;
if(!(protocol->flags & FLAG_REQUEST_COMPLETE)) {
*read_ret = 0;
return E_PENDING;
}
if(protocol->flags & FLAG_ALL_DATA_READ) {
*read_ret = 0;
return S_FALSE;
}
while(read < size) {
if(protocol->available_bytes) {
ULONG len;
res = InternetReadFile(protocol->request, ((BYTE *)buf)+read,
protocol->available_bytes > size-read ? size-read : protocol->available_bytes, &len);
if(!res) {
WARN("InternetReadFile failed: %d\n", GetLastError());
hres = INET_E_DOWNLOAD_FAILURE;
report_result(protocol, hres);
break;
}
if(!len) {
all_data_read(protocol);
break;
}
read += len;
protocol->current_position += len;
protocol->available_bytes -= len;
}else {
/* InternetQueryDataAvailable may immediately fork and perform its asynchronous
* read, so clear the flag _before_ calling so it does not incorrectly get cleared
* after the status callback is called */
protocol->flags &= ~FLAG_REQUEST_COMPLETE;
res = InternetQueryDataAvailable(protocol->request, &protocol->available_bytes, 0, 0);
if(!res) {
if (GetLastError() == ERROR_IO_PENDING) {
hres = E_PENDING;
}else {
WARN("InternetQueryDataAvailable failed: %d\n", GetLastError());
hres = INET_E_DATA_NOT_AVAILABLE;
report_result(protocol, hres);
}
break;
}
if(!protocol->available_bytes) {
all_data_read(protocol);
break;
}
}
}
*read_ret = read;
if (hres != E_PENDING)
protocol->flags |= FLAG_REQUEST_COMPLETE;
if(FAILED(hres))
return hres;
return read ? S_OK : S_FALSE;
}
HRESULT protocol_lock_request(Protocol *protocol)
{
if (!InternetLockRequestFile(protocol->request, &protocol->lock))
WARN("InternetLockRequest failed: %d\n", GetLastError());
return S_OK;
}
HRESULT protocol_unlock_request(Protocol *protocol)
{
if(!protocol->lock)
return S_OK;
if(!InternetUnlockRequestFile(protocol->lock))
WARN("InternetUnlockRequest failed: %d\n", GetLastError());
protocol->lock = 0;
return S_OK;
}
void protocol_close_connection(Protocol *protocol)
{
protocol->vtbl->close_connection(protocol);
if(protocol->request)
InternetCloseHandle(protocol->request);
if(protocol->connection)
InternetCloseHandle(protocol->connection);
protocol->flags = 0;
}