| /* |
| * libjingle |
| * Copyright 2004--2005, Google Inc. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright notice, |
| * this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright notice, |
| * this list of conditions and the following disclaimer in the documentation |
| * and/or other materials provided with the distribution. |
| * 3. The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
| * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
| * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
| * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
| * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include <time.h> |
| |
| #include "talk/base/httpcommon-inl.h" |
| |
| #include "talk/base/asyncsocket.h" |
| #include "talk/base/common.h" |
| #include "talk/base/diskcache.h" |
| #include "talk/base/httpclient.h" |
| #include "talk/base/logging.h" |
| #include "talk/base/pathutils.h" |
| #include "talk/base/socketstream.h" |
| #include "talk/base/stringencode.h" |
| #include "talk/base/stringutils.h" |
| #include "talk/base/basicdefs.h" |
| |
| namespace talk_base { |
| |
| ////////////////////////////////////////////////////////////////////// |
| // Helpers |
| ////////////////////////////////////////////////////////////////////// |
| |
| namespace { |
| |
| const size_t kCacheHeader = 0; |
| const size_t kCacheBody = 1; |
| |
| std::string HttpAddress(const SocketAddress& address) { |
| return (address.port() == HTTP_DEFAULT_PORT) |
| ? address.hostname() : address.ToString(); |
| } |
| |
| // Convert decimal string to integer |
| bool HttpStringToInt(const std::string& str, unsigned long* val) { |
| ASSERT(NULL != val); |
| char* eos = NULL; |
| *val = strtoul(str.c_str(), &eos, 10); |
| return (*eos == '\0'); |
| } |
| |
| bool HttpShouldCache(const HttpRequestData& request, |
| const HttpResponseData& response) { |
| bool verb_allows_cache = (request.verb == HV_GET) |
| || (request.verb == HV_HEAD); |
| bool is_range_response = response.hasHeader(HH_CONTENT_RANGE, NULL); |
| bool has_expires = response.hasHeader(HH_EXPIRES, NULL); |
| bool request_allows_cache = |
| has_expires || (std::string::npos != request.path.find('?')); |
| bool response_allows_cache = |
| has_expires || HttpCodeIsCacheable(response.scode); |
| |
| bool may_cache = verb_allows_cache |
| && request_allows_cache |
| && response_allows_cache |
| && !is_range_response; |
| |
| std::string value; |
| if (response.hasHeader(HH_CACHE_CONTROL, &value)) { |
| HttpAttributeList directives; |
| HttpParseAttributes(value.data(), value.size(), directives); |
| // Response Directives Summary: |
| // public - always cacheable |
| // private - do not cache in a shared cache |
| // no-cache - may cache, but must revalidate whether fresh or stale |
| // no-store - sensitive information, do not cache or store in any way |
| // max-age - supplants Expires for staleness |
| // s-maxage - use as max-age for shared caches, ignore otherwise |
| // must-revalidate - may cache, but must revalidate after stale |
| // proxy-revalidate - shared cache must revalidate |
| if (HttpHasAttribute(directives, "no-store", NULL)) { |
| may_cache = false; |
| } else if (HttpHasAttribute(directives, "public", NULL)) { |
| may_cache = true; |
| } |
| } |
| return may_cache; |
| } |
| |
| enum HttpCacheState { |
| HCS_FRESH, // In cache, may use |
| HCS_STALE, // In cache, must revalidate |
| HCS_NONE // Not in cache |
| }; |
| |
| HttpCacheState HttpGetCacheState(const HttpRequestData& request, |
| const HttpResponseData& response) { |
| // Temporaries |
| std::string s_temp; |
| unsigned long i_temp; |
| |
| // Current time |
| unsigned long now = time(0); |
| |
| HttpAttributeList cache_control; |
| if (response.hasHeader(HH_CACHE_CONTROL, &s_temp)) { |
| HttpParseAttributes(s_temp.data(), s_temp.size(), cache_control); |
| } |
| |
| // Compute age of cache document |
| unsigned long date; |
| if (!response.hasHeader(HH_DATE, &s_temp) |
| || !HttpDateToSeconds(s_temp, &date)) |
| return HCS_NONE; |
| |
| // TODO: Timestamp when cache request sent and response received? |
| unsigned long request_time = date; |
| unsigned long response_time = date; |
| |
| unsigned long apparent_age = 0; |
| if (response_time > date) { |
| apparent_age = response_time - date; |
| } |
| |
| unsigned long corrected_received_age = apparent_age; |
| if (response.hasHeader(HH_AGE, &s_temp) |
| && HttpStringToInt(s_temp, &i_temp)) { |
| corrected_received_age = stdmax(apparent_age, i_temp); |
| } |
| |
| unsigned long response_delay = response_time - request_time; |
| unsigned long corrected_initial_age = corrected_received_age + response_delay; |
| unsigned long resident_time = now - response_time; |
| unsigned long current_age = corrected_initial_age + resident_time; |
| |
| // Compute lifetime of document |
| unsigned long lifetime; |
| if (HttpHasAttribute(cache_control, "max-age", &s_temp)) { |
| lifetime = atoi(s_temp.c_str()); |
| } else if (response.hasHeader(HH_EXPIRES, &s_temp) |
| && HttpDateToSeconds(s_temp, &i_temp)) { |
| lifetime = i_temp - date; |
| } else if (response.hasHeader(HH_LAST_MODIFIED, &s_temp) |
| && HttpDateToSeconds(s_temp, &i_temp)) { |
| // TODO: Issue warning 113 if age > 24 hours |
| lifetime = (now - i_temp) / 10; |
| } else { |
| return HCS_STALE; |
| } |
| |
| return (lifetime > current_age) ? HCS_FRESH : HCS_STALE; |
| } |
| |
| enum HttpValidatorStrength { |
| HVS_NONE, |
| HVS_WEAK, |
| HVS_STRONG |
| }; |
| |
| HttpValidatorStrength |
| HttpRequestValidatorLevel(const HttpRequestData& request) { |
| if (HV_GET != request.verb) |
| return HVS_STRONG; |
| return request.hasHeader(HH_RANGE, NULL) ? HVS_STRONG : HVS_WEAK; |
| } |
| |
| HttpValidatorStrength |
| HttpResponseValidatorLevel(const HttpResponseData& response) { |
| std::string value; |
| if (response.hasHeader(HH_ETAG, &value)) { |
| bool is_weak = (strnicmp(value.c_str(), "W/", 2) == 0); |
| return is_weak ? HVS_WEAK : HVS_STRONG; |
| } |
| if (response.hasHeader(HH_LAST_MODIFIED, &value)) { |
| unsigned long last_modified, date; |
| if (HttpDateToSeconds(value, &last_modified) |
| && response.hasHeader(HH_DATE, &value) |
| && HttpDateToSeconds(value, &date) |
| && (last_modified + 60 < date)) { |
| return HVS_STRONG; |
| } |
| return HVS_WEAK; |
| } |
| return HVS_NONE; |
| } |
| |
| std::string GetCacheID(const SocketAddress& server, |
| const HttpRequestData& request) { |
| std::string url; |
| url.append(ToString(request.verb)); |
| url.append("_"); |
| if ((_strnicmp(request.path.c_str(), "http://", 7) == 0) |
| || (_strnicmp(request.path.c_str(), "https://", 8) == 0)) { |
| url.append(request.path); |
| } else { |
| url.append("http://"); |
| url.append(HttpAddress(server)); |
| url.append(request.path); |
| } |
| return url; |
| } |
| |
| } // anonymous namespace |
| |
| ////////////////////////////////////////////////////////////////////// |
| // HttpClient |
| ////////////////////////////////////////////////////////////////////// |
| |
| HttpClient::HttpClient(const std::string& agent, StreamPool* pool) |
| : agent_(agent), pool_(pool), fail_redirect_(false), absolute_uri_(false), |
| cache_(NULL), cache_state_(CS_READY) |
| { |
| base_.notify(this); |
| } |
| |
| HttpClient::~HttpClient() { |
| base_.notify(NULL); |
| base_.abort(HE_SHUTDOWN); |
| release(); |
| } |
| |
| void HttpClient::reset() { |
| server_.Clear(); |
| request_.clear(true); |
| response_.clear(true); |
| context_.reset(); |
| base_.abort(HE_OPERATION_CANCELLED); |
| } |
| |
| void HttpClient::set_server(const SocketAddress& address) { |
| server_ = address; |
| // Setting 'Host' here allows it to be overridden before starting the request, |
| // if necessary. |
| request_.setHeader(HH_HOST, HttpAddress(server_), true); |
| } |
| |
| void HttpClient::start() { |
| if (base_.mode() != HM_NONE) { |
| // call reset() to abort an in-progress request |
| ASSERT(false); |
| return; |
| } |
| |
| ASSERT(!IsCacheActive()); |
| |
| if (request_.hasHeader(HH_TRANSFER_ENCODING, NULL)) { |
| // Exact size must be known on the client. Instead of using chunked |
| // encoding, wrap data with auto-caching file or memory stream. |
| ASSERT(false); |
| return; |
| } |
| |
| // If no content has been specified, using length of 0. |
| request_.setHeader(HH_CONTENT_LENGTH, "0", false); |
| |
| request_.setHeader(HH_USER_AGENT, agent_, false); |
| request_.setHeader(HH_CONNECTION, "Keep-Alive", false); |
| if (_strnicmp(request_.path.c_str(), "http", 4) == 0) { |
| request_.setHeader(HH_PROXY_CONNECTION, "Keep-Alive", false); |
| } |
| |
| bool absolute_uri = absolute_uri_; |
| if (PROXY_HTTPS == proxy_.type) { |
| request().version = HVER_1_0; |
| // Proxies require canonical form |
| absolute_uri = true; |
| } |
| |
| // Convert to canonical form (if not already) |
| if (absolute_uri && (_strnicmp(request().path.c_str(), "http://", 7) != 0)) { |
| std::string canonical_path("http://"); |
| canonical_path.append(HttpAddress(server_)); |
| canonical_path.append(request().path); |
| request().path = canonical_path; |
| } |
| |
| if ((NULL != cache_) && CheckCache()) { |
| return; |
| } |
| |
| int stream_err; |
| StreamInterface* stream = pool_->RequestConnectedStream(server_, &stream_err); |
| if (stream == NULL) { |
| if (stream_err) |
| LOG(LS_ERROR) << "RequestConnectedStream returned: " << stream_err; |
| onHttpComplete(HM_CONNECT, (stream_err == 0) ? HE_NONE : HE_SOCKET); |
| } else { |
| base_.attach(stream); |
| if (stream->GetState() == SS_OPEN) { |
| base_.send(&request_); |
| } |
| } |
| } |
| |
| void HttpClient::prepare_get(const std::string& url) { |
| reset(); |
| Url<char> purl(url); |
| set_server(SocketAddress(purl.server(), purl.port(), false)); |
| request().verb = HV_GET; |
| request().path = purl.full_path(); |
| } |
| |
| void HttpClient::prepare_post(const std::string& url, |
| const std::string& content_type, |
| StreamInterface* request_doc) { |
| reset(); |
| Url<char> purl(url); |
| set_server(SocketAddress(purl.server(), purl.port(), false)); |
| request().verb = HV_POST; |
| request().path = purl.full_path(); |
| request().setContent(content_type, request_doc); |
| } |
| |
| void HttpClient::release() { |
| if (StreamInterface* stream = base_.detach()) { |
| pool_->ReturnConnectedStream(stream); |
| } |
| } |
| |
| bool HttpClient::BeginCacheFile() { |
| ASSERT(NULL != cache_); |
| ASSERT(CS_READY == cache_state_); |
| |
| std::string id = GetCacheID(server_, request_); |
| CacheLock lock(cache_, id, true); |
| if (!lock.IsLocked()) { |
| LOG_F(LS_WARNING) << "Couldn't lock cache"; |
| return false; |
| } |
| |
| if (HE_NONE != WriteCacheHeaders(id)) { |
| return false; |
| } |
| |
| scoped_ptr<StreamInterface> stream(cache_->WriteResource(id, kCacheBody)); |
| if (!stream.get()) { |
| LOG_F(LS_ERROR) << "Couldn't open body cache"; |
| return false; |
| } |
| lock.Commit(); |
| |
| // Let's secretly replace the response document with Folgers Crystals, |
| // er, StreamTap, so that we can mirror the data to our cache. |
| StreamInterface* output = response_.document.release(); |
| if (!output) { |
| output = new NullStream; |
| } |
| StreamTap* tap = new StreamTap(output, stream.release()); |
| response_.document.reset(tap); |
| return true; |
| } |
| |
| HttpError HttpClient::WriteCacheHeaders(const std::string& id) { |
| scoped_ptr<StreamInterface> stream(cache_->WriteResource(id, kCacheHeader)); |
| if (!stream.get()) { |
| LOG_F(LS_ERROR) << "Couldn't open header cache"; |
| return HE_CACHE; |
| } |
| |
| // Write all unknown and end-to-end headers to a cache file |
| for (HttpData::const_iterator it = response_.begin(); |
| it != response_.end(); ++it) { |
| HttpHeader header; |
| if (FromString(header, it->first) && !HttpHeaderIsEndToEnd(header)) |
| continue; |
| std::string formatted_header(it->first); |
| formatted_header.append(": "); |
| formatted_header.append(it->second); |
| formatted_header.append("\r\n"); |
| StreamResult result = stream->WriteAll(formatted_header.data(), |
| formatted_header.length(), |
| NULL, NULL); |
| if (SR_SUCCESS != result) { |
| LOG_F(LS_ERROR) << "Couldn't write header cache"; |
| return HE_CACHE; |
| } |
| } |
| |
| return HE_NONE; |
| } |
| |
| void HttpClient::CompleteCacheFile() { |
| // Restore previous response document |
| StreamTap* tap = static_cast<StreamTap*>(response_.document.release()); |
| response_.document.reset(tap->Detach()); |
| |
| int error; |
| StreamResult result = tap->GetTapResult(&error); |
| |
| // Delete the tap and cache stream (which completes cache unlock) |
| delete tap; |
| |
| if (SR_SUCCESS != result) { |
| LOG(LS_ERROR) << "Cache file error: " << error; |
| cache_->DeleteResource(GetCacheID(server_, request_)); |
| } |
| } |
| |
| bool HttpClient::CheckCache() { |
| ASSERT(NULL != cache_); |
| ASSERT(CS_READY == cache_state_); |
| |
| std::string id = GetCacheID(server_, request_); |
| if (!cache_->HasResource(id)) { |
| // No cache file available |
| return false; |
| } |
| |
| HttpError error = ReadCacheHeaders(id, true); |
| |
| if (HE_NONE == error) { |
| switch (HttpGetCacheState(request_, response_)) { |
| case HCS_FRESH: |
| // Cache content is good, read from cache |
| break; |
| case HCS_STALE: |
| // Cache content may be acceptable. Issue a validation request. |
| if (PrepareValidate()) { |
| return false; |
| } |
| // Couldn't validate, fall through. |
| case HCS_NONE: |
| // Cache content is not useable. Issue a regular request. |
| response_.clear(false); |
| return false; |
| } |
| } |
| |
| if (HE_NONE == error) { |
| error = ReadCacheBody(id); |
| cache_state_ = CS_READY; |
| } |
| |
| if (HE_CACHE == error) { |
| LOG_F(LS_WARNING) << "Cache failure, continuing with normal request"; |
| response_.clear(false); |
| return false; |
| } |
| |
| SignalHttpClientComplete(this, error); |
| return true; |
| } |
| |
| HttpError HttpClient::ReadCacheHeaders(const std::string& id, bool override) { |
| scoped_ptr<StreamInterface> stream(cache_->ReadResource(id, kCacheHeader)); |
| if (!stream.get()) { |
| return HE_CACHE; |
| } |
| |
| HttpData::HeaderCombine combine = |
| override ? HttpData::HC_REPLACE : HttpData::HC_AUTO; |
| |
| while (true) { |
| std::string formatted_header; |
| StreamResult result = stream->ReadLine(&formatted_header); |
| if (SR_EOS == result) |
| break; |
| |
| if (SR_SUCCESS != result) { |
| LOG_F(LS_ERROR) << "ReadLine error in cache headers"; |
| return HE_CACHE; |
| } |
| size_t end_of_name = formatted_header.find(':'); |
| if (std::string::npos == end_of_name) { |
| LOG_F(LS_WARNING) << "Malformed cache header"; |
| continue; |
| } |
| size_t start_of_value = end_of_name + 1; |
| size_t end_of_value = formatted_header.length(); |
| while ((start_of_value < end_of_value) |
| && isspace(formatted_header[start_of_value])) |
| ++start_of_value; |
| while ((start_of_value < end_of_value) |
| && isspace(formatted_header[end_of_value-1])) |
| --end_of_value; |
| size_t value_length = end_of_value - start_of_value; |
| |
| std::string name(formatted_header.substr(0, end_of_name)); |
| std::string value(formatted_header.substr(start_of_value, value_length)); |
| response_.changeHeader(name, value, combine); |
| } |
| |
| response_.scode = HC_OK; |
| return HE_NONE; |
| } |
| |
| HttpError HttpClient::ReadCacheBody(const std::string& id) { |
| cache_state_ = CS_READING; |
| |
| HttpError error = HE_NONE; |
| |
| size_t data_size; |
| scoped_ptr<StreamInterface> stream(cache_->ReadResource(id, kCacheBody)); |
| if (!stream.get() || !stream->GetSize(&data_size)) { |
| LOG_F(LS_ERROR) << "Unavailable cache body"; |
| error = HE_CACHE; |
| } else { |
| error = OnHeaderAvailable(false, false, data_size); |
| } |
| |
| if ((HE_NONE == error) |
| && (HV_HEAD != request_.verb) |
| && (NULL != response_.document.get())) { |
| char buffer[1024 * 64]; |
| StreamResult result = Flow(stream.get(), buffer, ARRAY_SIZE(buffer), |
| response_.document.get()); |
| if (SR_SUCCESS != result) { |
| error = HE_STREAM; |
| } |
| } |
| |
| return error; |
| } |
| |
| bool HttpClient::PrepareValidate() { |
| ASSERT(CS_READY == cache_state_); |
| // At this point, request_ contains the pending request, and response_ |
| // contains the cached response headers. Reformat the request to validate |
| // the cached content. |
| HttpValidatorStrength vs_required = HttpRequestValidatorLevel(request_); |
| HttpValidatorStrength vs_available = HttpResponseValidatorLevel(response_); |
| if (vs_available < vs_required) { |
| return false; |
| } |
| std::string value; |
| if (response_.hasHeader(HH_ETAG, &value)) { |
| request_.addHeader(HH_IF_NONE_MATCH, value); |
| } |
| if (response_.hasHeader(HH_LAST_MODIFIED, &value)) { |
| request_.addHeader(HH_IF_MODIFIED_SINCE, value); |
| } |
| response_.clear(false); |
| cache_state_ = CS_VALIDATING; |
| return true; |
| } |
| |
| HttpError HttpClient::CompleteValidate() { |
| ASSERT(CS_VALIDATING == cache_state_); |
| |
| std::string id = GetCacheID(server_, request_); |
| |
| // Merge cached headers with new headers |
| HttpError error = ReadCacheHeaders(id, false); |
| if (HE_NONE != error) { |
| // Rewrite merged headers to cache |
| CacheLock lock(cache_, id); |
| error = WriteCacheHeaders(id); |
| } |
| if (HE_NONE != error) { |
| error = ReadCacheBody(id); |
| } |
| return error; |
| } |
| |
| HttpError HttpClient::OnHeaderAvailable(bool ignore_data, bool chunked, |
| size_t data_size) { |
| if (!ignore_data && !chunked && response_.document.get()) { |
| // Attempt to pre-allocate space for the downloaded data. |
| if (!response_.document->ReserveSize(data_size)) { |
| return HE_OVERFLOW; |
| } |
| } |
| SignalHeaderAvailable(this, chunked, data_size); |
| return HE_NONE; |
| } |
| |
| // |
| // HttpBase Implementation |
| // |
| |
| HttpError HttpClient::onHttpHeaderComplete(bool chunked, size_t& data_size) { |
| if (CS_VALIDATING == cache_state_) { |
| if (HC_NOT_MODIFIED == response_.scode) { |
| return CompleteValidate(); |
| } |
| // Should we remove conditional headers from request? |
| cache_state_ = CS_READY; |
| cache_->DeleteResource(GetCacheID(server_, request_)); |
| // Continue processing response as normal |
| } |
| |
| ASSERT(!IsCacheActive()); |
| if ((request_.verb == HV_HEAD) || !HttpCodeHasBody(response_.scode)) { |
| // HEAD requests and certain response codes contain no body |
| data_size = 0; |
| } |
| if ((HttpCodeIsRedirection(response_.scode) && !fail_redirect_) |
| || ((HC_PROXY_AUTHENTICATION_REQUIRED == response_.scode) |
| && (PROXY_HTTPS == proxy_.type))) { |
| // We're going to issue another request, so ignore the incoming data. |
| base_.set_ignore_data(true); |
| } |
| |
| HttpError error = OnHeaderAvailable(base_.ignore_data(), chunked, data_size); |
| if (HE_NONE != error) { |
| return error; |
| } |
| |
| if ((NULL != cache_) |
| && !base_.ignore_data() |
| && HttpShouldCache(request_, response_)) { |
| if (BeginCacheFile()) { |
| cache_state_ = CS_WRITING; |
| } |
| } |
| return HE_NONE; |
| } |
| |
| void HttpClient::onHttpComplete(HttpMode mode, HttpError err) { |
| if (err != HE_NONE) { |
| // fall through |
| } else if (mode == HM_CONNECT) { |
| base_.send(&request_); |
| return; |
| } else if ((mode == HM_SEND) || HttpCodeIsInformational(response_.scode)) { |
| // If you're interested in informational headers, catch |
| // SignalHeaderAvailable. |
| base_.recv(&response_); |
| return; |
| } else { |
| if (!HttpShouldKeepAlive(response_)) { |
| LOG(INFO) << "HttpClient: closing socket"; |
| base_.stream()->Close(); |
| } |
| if (HttpCodeIsRedirection(response_.scode) && !fail_redirect_) { |
| std::string value; |
| if (!response_.hasHeader(HH_LOCATION, &value)) { |
| err = HE_PROTOCOL; |
| } else { |
| Url<char> purl(value); |
| set_server(SocketAddress(purl.server(), purl.port(), false)); |
| request_.path = purl.full_path(); |
| if (response_.scode == HC_SEE_OTHER) { |
| request_.verb = HV_GET; |
| request_.clearHeader(HH_CONTENT_TYPE); |
| request_.clearHeader(HH_CONTENT_LENGTH); |
| request_.document.reset(); |
| } else if (request_.document.get() && !request_.document->Rewind()) { |
| // Unable to replay the request document. |
| err = HE_STREAM; |
| } |
| } |
| if (err == HE_NONE) { |
| context_.reset(); |
| response_.clear(false); |
| release(); |
| start(); |
| return; |
| } |
| } else if ((HC_PROXY_AUTHENTICATION_REQUIRED == response_.scode) |
| && (PROXY_HTTPS == proxy_.type)) { |
| std::string response, auth_method; |
| HttpData::const_iterator begin = response_.begin(HH_PROXY_AUTHENTICATE); |
| HttpData::const_iterator end = response_.end(HH_PROXY_AUTHENTICATE); |
| for (HttpData::const_iterator it = begin; it != end; ++it) { |
| HttpAuthResult res = HttpAuthenticate( |
| it->second.data(), it->second.size(), |
| proxy_.address, |
| ToString(request_.verb), request_.path, |
| proxy_.username, proxy_.password, |
| *context_.use(), response, auth_method); |
| if (res == HAR_RESPONSE) { |
| request_.setHeader(HH_PROXY_AUTHORIZATION, response); |
| if (request_.document.get() && !request_.document->Rewind()) { |
| err = HE_STREAM; |
| } else { |
| // Explicitly do not reset the HttpAuthContext |
| response_.clear(false); |
| // TODO: Reuse socket when authenticating? |
| release(); |
| start(); |
| return; |
| } |
| } else if (res == HAR_IGNORE) { |
| LOG(INFO) << "Ignoring Proxy-Authenticate: " << auth_method; |
| continue; |
| } else { |
| break; |
| } |
| } |
| } |
| } |
| if (CS_WRITING == cache_state_) { |
| CompleteCacheFile(); |
| cache_state_ = CS_READY; |
| } else if (CS_READING == cache_state_) { |
| cache_state_ = CS_READY; |
| } |
| release(); |
| SignalHttpClientComplete(this, err); |
| } |
| |
| void HttpClient::onHttpClosed(HttpError err) { |
| SignalHttpClientClosed(this, err); |
| } |
| |
| ////////////////////////////////////////////////////////////////////// |
| |
| } // namespace talk_base |