455 lines
14 KiB
C
455 lines
14 KiB
C
/*
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* Copyright 2007 Misha Koshelev
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* Copyright 2009 Jacek Caban for CodeWeavers
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "urlmon_main.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(urlmon);
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/* Flags are needed for, among other things, return HRESULTs from the Read function
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* to conform to native. For example, Read returns:
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*
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* 1. E_PENDING if called before the request has completed,
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* (flags = 0)
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* 2. S_FALSE after all data has been read and S_OK has been reported,
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* (flags = FLAG_REQUEST_COMPLETE | FLAG_ALL_DATA_READ | FLAG_RESULT_REPORTED)
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* 3. INET_E_DATA_NOT_AVAILABLE if InternetQueryDataAvailable fails. The first time
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* this occurs, INET_E_DATA_NOT_AVAILABLE will also be reported to the sink,
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* (flags = FLAG_REQUEST_COMPLETE)
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* but upon subsequent calls to Read no reporting will take place, yet
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* InternetQueryDataAvailable will still be called, and, on failure,
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* INET_E_DATA_NOT_AVAILABLE will still be returned.
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* (flags = FLAG_REQUEST_COMPLETE | FLAG_RESULT_REPORTED)
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*
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* FLAG_FIRST_DATA_REPORTED and FLAG_LAST_DATA_REPORTED are needed for proper
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* ReportData reporting. For example, if OnResponse returns S_OK, Continue will
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* report BSCF_FIRSTDATANOTIFICATION, and when all data has been read Read will
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* report BSCF_INTERMEDIATEDATANOTIFICATION|BSCF_LASTDATANOTIFICATION. However,
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* if OnResponse does not return S_OK, Continue will not report data, and Read
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* will report BSCF_FIRSTDATANOTIFICATION|BSCF_LASTDATANOTIFICATION when all
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* data has been read.
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*/
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#define FLAG_REQUEST_COMPLETE 0x0001
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#define FLAG_FIRST_CONTINUE_COMPLETE 0x0002
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#define FLAG_FIRST_DATA_REPORTED 0x0004
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#define FLAG_ALL_DATA_READ 0x0008
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#define FLAG_LAST_DATA_REPORTED 0x0010
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#define FLAG_RESULT_REPORTED 0x0020
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static inline HRESULT report_progress(Protocol *protocol, ULONG status_code, LPCWSTR status_text)
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{
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return IInternetProtocolSink_ReportProgress(protocol->protocol_sink, status_code, status_text);
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}
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static inline HRESULT report_result(Protocol *protocol, HRESULT hres)
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{
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if (!(protocol->flags & FLAG_RESULT_REPORTED) && protocol->protocol_sink) {
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protocol->flags |= FLAG_RESULT_REPORTED;
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IInternetProtocolSink_ReportResult(protocol->protocol_sink, hres, 0, NULL);
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}
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return hres;
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}
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static void report_data(Protocol *protocol)
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{
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DWORD bscf;
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if((protocol->flags & FLAG_LAST_DATA_REPORTED) || !protocol->protocol_sink)
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return;
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if(protocol->flags & FLAG_FIRST_DATA_REPORTED) {
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bscf = BSCF_INTERMEDIATEDATANOTIFICATION;
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}else {
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protocol->flags |= FLAG_FIRST_DATA_REPORTED;
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bscf = BSCF_FIRSTDATANOTIFICATION;
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}
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if(protocol->flags & FLAG_ALL_DATA_READ && !(protocol->flags & FLAG_LAST_DATA_REPORTED)) {
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protocol->flags |= FLAG_LAST_DATA_REPORTED;
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bscf |= BSCF_LASTDATANOTIFICATION;
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}
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IInternetProtocolSink_ReportData(protocol->protocol_sink, bscf,
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protocol->current_position+protocol->available_bytes,
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protocol->content_length);
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}
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static void all_data_read(Protocol *protocol)
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{
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protocol->flags |= FLAG_ALL_DATA_READ;
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report_data(protocol);
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report_result(protocol, S_OK);
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}
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static void request_complete(Protocol *protocol, INTERNET_ASYNC_RESULT *ar)
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{
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PROTOCOLDATA data;
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if(!ar->dwResult) {
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WARN("request failed: %d\n", ar->dwError);
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return;
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}
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protocol->flags |= FLAG_REQUEST_COMPLETE;
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if(!protocol->request) {
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TRACE("setting request handle %p\n", (HINTERNET)ar->dwResult);
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protocol->request = (HINTERNET)ar->dwResult;
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}
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/* PROTOCOLDATA same as native */
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memset(&data, 0, sizeof(data));
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data.dwState = 0xf1000000;
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if(protocol->flags & FLAG_FIRST_CONTINUE_COMPLETE)
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data.pData = (LPVOID)BINDSTATUS_ENDDOWNLOADCOMPONENTS;
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else
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data.pData = (LPVOID)BINDSTATUS_DOWNLOADINGDATA;
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if (protocol->bindf & BINDF_FROMURLMON)
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IInternetProtocolSink_Switch(protocol->protocol_sink, &data);
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else
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protocol_continue(protocol, &data);
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}
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static void WINAPI internet_status_callback(HINTERNET internet, DWORD_PTR context,
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DWORD internet_status, LPVOID status_info, DWORD status_info_len)
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{
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Protocol *protocol = (Protocol*)context;
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switch(internet_status) {
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case INTERNET_STATUS_RESOLVING_NAME:
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TRACE("%p INTERNET_STATUS_RESOLVING_NAME\n", protocol);
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report_progress(protocol, BINDSTATUS_FINDINGRESOURCE, (LPWSTR)status_info);
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break;
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case INTERNET_STATUS_CONNECTING_TO_SERVER:
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TRACE("%p INTERNET_STATUS_CONNECTING_TO_SERVER\n", protocol);
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report_progress(protocol, BINDSTATUS_CONNECTING, (LPWSTR)status_info);
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break;
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case INTERNET_STATUS_SENDING_REQUEST:
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TRACE("%p INTERNET_STATUS_SENDING_REQUEST\n", protocol);
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report_progress(protocol, BINDSTATUS_SENDINGREQUEST, (LPWSTR)status_info);
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break;
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case INTERNET_STATUS_REDIRECT:
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TRACE("%p INTERNET_STATUS_REDIRECT\n", protocol);
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report_progress(protocol, BINDSTATUS_REDIRECTING, (LPWSTR)status_info);
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break;
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case INTERNET_STATUS_REQUEST_COMPLETE:
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request_complete(protocol, status_info);
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break;
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case INTERNET_STATUS_HANDLE_CREATED:
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TRACE("%p INTERNET_STATUS_HANDLE_CREATED\n", protocol);
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IInternetProtocol_AddRef(protocol->protocol);
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break;
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case INTERNET_STATUS_HANDLE_CLOSING:
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TRACE("%p INTERNET_STATUS_HANDLE_CLOSING\n", protocol);
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if(*(HINTERNET *)status_info == protocol->request) {
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protocol->request = NULL;
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if(protocol->protocol_sink) {
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IInternetProtocolSink_Release(protocol->protocol_sink);
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protocol->protocol_sink = NULL;
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}
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if(protocol->bind_info.cbSize) {
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ReleaseBindInfo(&protocol->bind_info);
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memset(&protocol->bind_info, 0, sizeof(protocol->bind_info));
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}
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}else if(*(HINTERNET *)status_info == protocol->connection) {
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protocol->connection = NULL;
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}
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IInternetProtocol_Release(protocol->protocol);
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break;
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default:
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WARN("Unhandled Internet status callback %d\n", internet_status);
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}
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}
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static HINTERNET create_internet_session(IInternetBindInfo *bind_info)
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{
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LPWSTR global_user_agent = NULL;
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LPOLESTR user_agent = NULL;
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ULONG size = 0;
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HINTERNET ret;
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HRESULT hres;
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hres = IInternetBindInfo_GetBindString(bind_info, BINDSTRING_USER_AGENT, &user_agent, 1, &size);
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if(hres != S_OK || !size)
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global_user_agent = get_useragent();
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ret = InternetOpenW(user_agent ? user_agent : global_user_agent, 0, NULL, NULL, INTERNET_FLAG_ASYNC);
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heap_free(global_user_agent);
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CoTaskMemFree(user_agent);
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if(!ret) {
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WARN("InternetOpen failed: %d\n", GetLastError());
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return NULL;
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}
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InternetSetStatusCallbackW(ret, internet_status_callback);
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return ret;
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}
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static HINTERNET internet_session;
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HINTERNET get_internet_session(IInternetBindInfo *bind_info)
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{
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HINTERNET new_session;
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if(internet_session)
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return internet_session;
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if(!bind_info)
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return NULL;
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new_session = create_internet_session(bind_info);
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if(new_session && InterlockedCompareExchangePointer((void**)&internet_session, new_session, NULL))
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InternetCloseHandle(new_session);
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return internet_session;
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}
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HRESULT protocol_start(Protocol *protocol, IInternetProtocol *prot, IUri *uri,
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IInternetProtocolSink *protocol_sink, IInternetBindInfo *bind_info)
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{
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DWORD request_flags;
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HRESULT hres;
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protocol->protocol = prot;
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IInternetProtocolSink_AddRef(protocol_sink);
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protocol->protocol_sink = protocol_sink;
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memset(&protocol->bind_info, 0, sizeof(protocol->bind_info));
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protocol->bind_info.cbSize = sizeof(BINDINFO);
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hres = IInternetBindInfo_GetBindInfo(bind_info, &protocol->bindf, &protocol->bind_info);
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if(hres != S_OK) {
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WARN("GetBindInfo failed: %08x\n", hres);
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return report_result(protocol, hres);
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}
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if(!(protocol->bindf & BINDF_FROMURLMON))
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report_progress(protocol, BINDSTATUS_DIRECTBIND, NULL);
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if(!get_internet_session(bind_info))
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return report_result(protocol, INET_E_NO_SESSION);
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request_flags = INTERNET_FLAG_KEEP_CONNECTION;
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if(protocol->bindf & BINDF_NOWRITECACHE)
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request_flags |= INTERNET_FLAG_NO_CACHE_WRITE;
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if(protocol->bindf & BINDF_NEEDFILE)
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request_flags |= INTERNET_FLAG_NEED_FILE;
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hres = protocol->vtbl->open_request(protocol, uri, request_flags, internet_session, bind_info);
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if(FAILED(hres)) {
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protocol_close_connection(protocol);
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return report_result(protocol, hres);
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}
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return S_OK;
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}
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HRESULT protocol_continue(Protocol *protocol, PROTOCOLDATA *data)
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{
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HRESULT hres;
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if (!data) {
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WARN("Expected pProtocolData to be non-NULL\n");
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return S_OK;
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}
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if(!protocol->request) {
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WARN("Expected request to be non-NULL\n");
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return S_OK;
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}
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if(!protocol->protocol_sink) {
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WARN("Expected IInternetProtocolSink pointer to be non-NULL\n");
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return S_OK;
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}
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if(data->pData == (LPVOID)BINDSTATUS_DOWNLOADINGDATA) {
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hres = protocol->vtbl->start_downloading(protocol);
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if(FAILED(hres)) {
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protocol_close_connection(protocol);
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report_result(protocol, hres);
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return S_OK;
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}
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if(protocol->bindf & BINDF_NEEDFILE) {
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WCHAR cache_file[MAX_PATH];
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DWORD buflen = sizeof(cache_file);
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if(InternetQueryOptionW(protocol->request, INTERNET_OPTION_DATAFILE_NAME,
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cache_file, &buflen)) {
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report_progress(protocol, BINDSTATUS_CACHEFILENAMEAVAILABLE, cache_file);
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}else {
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FIXME("Could not get cache file\n");
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}
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}
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protocol->flags |= FLAG_FIRST_CONTINUE_COMPLETE;
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}
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if(data->pData >= (LPVOID)BINDSTATUS_DOWNLOADINGDATA) {
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BOOL res;
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/* InternetQueryDataAvailable may immediately fork and perform its asynchronous
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* read, so clear the flag _before_ calling so it does not incorrectly get cleared
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* after the status callback is called */
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protocol->flags &= ~FLAG_REQUEST_COMPLETE;
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res = InternetQueryDataAvailable(protocol->request, &protocol->available_bytes, 0, 0);
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if(res) {
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protocol->flags |= FLAG_REQUEST_COMPLETE;
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report_data(protocol);
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}else if(GetLastError() != ERROR_IO_PENDING) {
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protocol->flags |= FLAG_REQUEST_COMPLETE;
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WARN("InternetQueryDataAvailable failed: %d\n", GetLastError());
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report_result(protocol, INET_E_DATA_NOT_AVAILABLE);
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}
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}
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return S_OK;
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}
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HRESULT protocol_read(Protocol *protocol, void *buf, ULONG size, ULONG *read_ret)
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{
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ULONG read = 0;
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BOOL res;
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HRESULT hres = S_FALSE;
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if(protocol->flags & FLAG_ALL_DATA_READ) {
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*read_ret = 0;
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return S_FALSE;
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}
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if(!(protocol->flags & FLAG_REQUEST_COMPLETE)) {
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*read_ret = 0;
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return E_PENDING;
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}
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while(read < size) {
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if(protocol->available_bytes) {
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ULONG len;
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res = InternetReadFile(protocol->request, ((BYTE *)buf)+read,
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protocol->available_bytes > size-read ? size-read : protocol->available_bytes, &len);
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if(!res) {
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WARN("InternetReadFile failed: %d\n", GetLastError());
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hres = INET_E_DOWNLOAD_FAILURE;
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report_result(protocol, hres);
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break;
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}
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if(!len) {
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all_data_read(protocol);
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break;
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}
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read += len;
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protocol->current_position += len;
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protocol->available_bytes -= len;
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}else {
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/* InternetQueryDataAvailable may immediately fork and perform its asynchronous
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* read, so clear the flag _before_ calling so it does not incorrectly get cleared
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* after the status callback is called */
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protocol->flags &= ~FLAG_REQUEST_COMPLETE;
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res = InternetQueryDataAvailable(protocol->request, &protocol->available_bytes, 0, 0);
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if(!res) {
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if (GetLastError() == ERROR_IO_PENDING) {
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hres = E_PENDING;
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}else {
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WARN("InternetQueryDataAvailable failed: %d\n", GetLastError());
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hres = INET_E_DATA_NOT_AVAILABLE;
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report_result(protocol, hres);
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}
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break;
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}
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if(!protocol->available_bytes) {
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all_data_read(protocol);
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break;
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}
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}
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}
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*read_ret = read;
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if (hres != E_PENDING)
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protocol->flags |= FLAG_REQUEST_COMPLETE;
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if(FAILED(hres))
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return hres;
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return read ? S_OK : S_FALSE;
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}
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HRESULT protocol_lock_request(Protocol *protocol)
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{
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if (!InternetLockRequestFile(protocol->request, &protocol->lock))
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WARN("InternetLockRequest failed: %d\n", GetLastError());
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return S_OK;
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}
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HRESULT protocol_unlock_request(Protocol *protocol)
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{
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if(!protocol->lock)
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return S_OK;
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if(!InternetUnlockRequestFile(protocol->lock))
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WARN("InternetUnlockRequest failed: %d\n", GetLastError());
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protocol->lock = 0;
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return S_OK;
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}
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HRESULT protocol_abort(Protocol *protocol, HRESULT reason)
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{
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if(!protocol->protocol_sink)
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return S_OK;
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if(protocol->flags & FLAG_RESULT_REPORTED)
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return INET_E_RESULT_DISPATCHED;
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report_result(protocol, reason);
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return S_OK;
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}
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void protocol_close_connection(Protocol *protocol)
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{
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protocol->vtbl->close_connection(protocol);
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if(protocol->request)
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InternetCloseHandle(protocol->request);
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if(protocol->connection)
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InternetCloseHandle(protocol->connection);
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protocol->flags = 0;
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}
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