From 4a698f611a4bed4e074a26556ca9262b182955ee Mon Sep 17 00:00:00 2001 From: solenberg Date: Fri, 18 Nov 2016 14:57:53 -0800 Subject: [PATCH] Remove unused HttpClient class. BUG=none Review-Url: https://codereview.webrtc.org/2511883005 Cr-Commit-Position: refs/heads/master@{#15156} --- webrtc/base/BUILD.gn | 2 - webrtc/base/httpclient.cc | 835 -------------------------------------- webrtc/base/httpclient.h | 196 --------- 3 files changed, 1033 deletions(-) delete mode 100644 webrtc/base/httpclient.cc delete mode 100644 webrtc/base/httpclient.h diff --git a/webrtc/base/BUILD.gn b/webrtc/base/BUILD.gn index 60303fcffc..a6b177999f 100644 --- a/webrtc/base/BUILD.gn +++ b/webrtc/base/BUILD.gn @@ -411,8 +411,6 @@ rtc_static_library("rtc_base") { "helpers.h", "httpbase.cc", "httpbase.h", - "httpclient.cc", - "httpclient.h", "httpcommon-inl.h", "httpcommon.cc", "httpcommon.h", diff --git a/webrtc/base/httpclient.cc b/webrtc/base/httpclient.cc deleted file mode 100644 index a458590bdb..0000000000 --- a/webrtc/base/httpclient.cc +++ /dev/null @@ -1,835 +0,0 @@ -/* - * Copyright 2004 The WebRTC Project Authors. All rights reserved. - * - * Use of this source code is governed by a BSD-style license - * that can be found in the LICENSE file in the root of the source - * tree. An additional intellectual property rights grant can be found - * in the file PATENTS. All contributing project authors may - * be found in the AUTHORS file in the root of the source tree. - */ - -#include -#include -#include -#include "webrtc/base/asyncsocket.h" -#include "webrtc/base/common.h" -#include "webrtc/base/diskcache.h" -#include "webrtc/base/httpclient.h" -#include "webrtc/base/httpcommon-inl.h" -#include "webrtc/base/logging.h" -#include "webrtc/base/pathutils.h" -#include "webrtc/base/socketstream.h" -#include "webrtc/base/stringencode.h" -#include "webrtc/base/stringutils.h" -#include "webrtc/base/thread.h" - -namespace rtc { - -////////////////////////////////////////////////////////////////////// -// Helpers -////////////////////////////////////////////////////////////////////// - -namespace { - -const size_t kCacheHeader = 0; -const size_t kCacheBody = 1; - -// Convert decimal string to integer -bool HttpStringToUInt(const std::string& str, size_t* val) { - ASSERT(NULL != val); - char* eos = NULL; - *val = strtoul(str.c_str(), &eos, 10); - return (*eos == '\0'); -} - -bool HttpShouldCache(const HttpTransaction& t) { - bool verb_allows_cache = (t.request.verb == HV_GET) - || (t.request.verb == HV_HEAD); - bool is_range_response = t.response.hasHeader(HH_CONTENT_RANGE, NULL); - bool has_expires = t.response.hasHeader(HH_EXPIRES, NULL); - bool request_allows_cache = - has_expires || (std::string::npos != t.request.path.find('?')); - bool response_allows_cache = - has_expires || HttpCodeIsCacheable(t.response.scode); - - bool may_cache = verb_allows_cache - && request_allows_cache - && response_allows_cache - && !is_range_response; - - std::string value; - if (t.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 HttpTransaction& t) { - // Temporaries - std::string s_temp; - time_t u_temp; - - // Current time - time_t now = time(0); - - HttpAttributeList cache_control; - if (t.response.hasHeader(HH_CACHE_CONTROL, &s_temp)) { - HttpParseAttributes(s_temp.data(), s_temp.size(), cache_control); - } - - // Compute age of cache document - time_t date; - if (!t.response.hasHeader(HH_DATE, &s_temp) - || !HttpDateToSeconds(s_temp, &date)) - return HCS_NONE; - - // TODO: Timestamp when cache request sent and response received? - time_t request_time = date; - time_t response_time = date; - - time_t apparent_age = 0; - if (response_time > date) { - apparent_age = response_time - date; - } - - time_t corrected_received_age = apparent_age; - size_t i_temp; - if (t.response.hasHeader(HH_AGE, &s_temp) - && HttpStringToUInt(s_temp, (&i_temp))) { - u_temp = static_cast(i_temp); - corrected_received_age = std::max(apparent_age, u_temp); - } - - time_t response_delay = response_time - request_time; - time_t corrected_initial_age = corrected_received_age + response_delay; - time_t resident_time = now - response_time; - time_t current_age = corrected_initial_age + resident_time; - - // Compute lifetime of document - time_t lifetime; - if (HttpHasAttribute(cache_control, "max-age", &s_temp)) { - lifetime = atoi(s_temp.c_str()); - } else if (t.response.hasHeader(HH_EXPIRES, &s_temp) - && HttpDateToSeconds(s_temp, &u_temp)) { - lifetime = u_temp - date; - } else if (t.response.hasHeader(HH_LAST_MODIFIED, &s_temp) - && HttpDateToSeconds(s_temp, &u_temp)) { - // TODO: Issue warning 113 if age > 24 hours - lifetime = static_cast(now - u_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)) { - time_t 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 HttpRequestData& request) { - std::string id, url; - id.append(ToString(request.verb)); - id.append("_"); - request.getAbsoluteUri(&url); - id.append(url); - return id; -} - -} // anonymous namespace - -////////////////////////////////////////////////////////////////////// -// Public Helpers -////////////////////////////////////////////////////////////////////// - -bool HttpWriteCacheHeaders(const HttpResponseData* response, - StreamInterface* output, size_t* size) { - size_t length = 0; - // 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; - length += it->first.length() + 2 + it->second.length() + 2; - if (!output) - continue; - std::string formatted_header(it->first); - formatted_header.append(": "); - formatted_header.append(it->second); - formatted_header.append("\r\n"); - StreamResult result = output->WriteAll(formatted_header.data(), - formatted_header.length(), - NULL, NULL); - if (SR_SUCCESS != result) { - return false; - } - } - if (output && (SR_SUCCESS != output->WriteAll("\r\n", 2, NULL, NULL))) { - return false; - } - length += 2; - if (size) - *size = length; - return true; -} - -bool HttpReadCacheHeaders(StreamInterface* input, HttpResponseData* response, - HttpData::HeaderCombine combine) { - while (true) { - std::string formatted_header; - StreamResult result = input->ReadLine(&formatted_header); - if ((SR_EOS == result) || (1 == formatted_header.size())) { - break; - } - if (SR_SUCCESS != result) { - return false; - } - 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); - } - return true; -} - -////////////////////////////////////////////////////////////////////// -// HttpClient -////////////////////////////////////////////////////////////////////// - -const size_t kDefaultRetries = 1; -const size_t kMaxRedirects = 5; - -HttpClient::HttpClient(const std::string& agent, StreamPool* pool, - HttpTransaction* transaction) - : agent_(agent), pool_(pool), - transaction_(transaction), free_transaction_(false), - retries_(kDefaultRetries), attempt_(0), redirects_(0), - redirect_action_(REDIRECT_DEFAULT), - uri_form_(URI_DEFAULT), cache_(NULL), cache_state_(CS_READY), - resolver_(NULL) { - base_.notify(this); - if (NULL == transaction_) { - free_transaction_ = true; - transaction_ = new HttpTransaction; - } -} - -HttpClient::~HttpClient() { - base_.notify(NULL); - base_.abort(HE_SHUTDOWN); - if (resolver_) { - resolver_->Destroy(false); - } - release(); - if (free_transaction_) - delete transaction_; -} - -void HttpClient::reset() { - server_.Clear(); - request().clear(true); - response().clear(true); - context_.reset(); - redirects_ = 0; - base_.abort(HE_OPERATION_CANCELLED); -} - -void HttpClient::OnResolveResult(AsyncResolverInterface* resolver) { - if (resolver != resolver_) { - return; - } - int error = resolver_->GetError(); - server_ = resolver_->address(); - resolver_->Destroy(false); - resolver_ = NULL; - if (error != 0) { - LOG(LS_ERROR) << "Error " << error << " resolving name: " - << server_; - onHttpComplete(HM_CONNECT, HE_CONNECT_FAILED); - } else { - connect(); - } -} - -void HttpClient::StartDNSLookup() { - resolver_ = new AsyncResolver(); - resolver_->SignalDone.connect(this, &HttpClient::OnResolveResult); - resolver_->Start(server_); -} - -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_, false), true); -} - -StreamInterface* HttpClient::GetDocumentStream() { - return base_.GetDocumentStream(); -} - -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; - } - - attempt_ = 0; - - // If no content has been specified, using length of 0. - request().setHeader(HH_CONTENT_LENGTH, "0", false); - - if (!agent_.empty()) { - request().setHeader(HH_USER_AGENT, agent_, false); - } - - UriForm uri_form = uri_form_; - if (PROXY_HTTPS == proxy_.type) { - // Proxies require absolute form - uri_form = URI_ABSOLUTE; - request().version = HVER_1_0; - request().setHeader(HH_PROXY_CONNECTION, "Keep-Alive", false); - } else { - request().setHeader(HH_CONNECTION, "Keep-Alive", false); - } - - if (URI_ABSOLUTE == uri_form) { - // Convert to absolute uri form - std::string url; - if (request().getAbsoluteUri(&url)) { - request().path = url; - } else { - LOG(LS_WARNING) << "Couldn't obtain absolute uri"; - } - } else if (URI_RELATIVE == uri_form) { - // Convert to relative uri form - std::string host, path; - if (request().getRelativeUri(&host, &path)) { - request().setHeader(HH_HOST, host); - request().path = path; - } else { - LOG(LS_WARNING) << "Couldn't obtain relative uri"; - } - } - - if ((NULL != cache_) && CheckCache()) { - return; - } - - connect(); -} - -void HttpClient::connect() { - int stream_err; - if (server_.IsUnresolvedIP()) { - StartDNSLookup(); - return; - } - StreamInterface* stream = pool_->RequestConnectedStream(server_, &stream_err); - if (stream == NULL) { - ASSERT(0 != stream_err); - LOG(LS_ERROR) << "RequestConnectedStream error: " << stream_err; - onHttpComplete(HM_CONNECT, HE_CONNECT_FAILED); - } else { - base_.attach(stream); - if (stream->GetState() == SS_OPEN) { - base_.send(&transaction_->request); - } - } -} - -void HttpClient::prepare_get(const std::string& url) { - reset(); - Url purl(url); - set_server(SocketAddress(purl.host(), purl.port())); - 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 purl(url); - set_server(SocketAddress(purl.host(), purl.port())); - 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::ShouldRedirect(std::string* location) const { - // TODO: Unittest redirection. - if ((REDIRECT_NEVER == redirect_action_) - || !HttpCodeIsRedirection(response().scode) - || !response().hasHeader(HH_LOCATION, location) - || (redirects_ >= kMaxRedirects)) - return false; - return (REDIRECT_ALWAYS == redirect_action_) - || (HC_SEE_OTHER == response().scode) - || (HV_HEAD == request().verb) - || (HV_GET == request().verb); -} - -bool HttpClient::BeginCacheFile() { - ASSERT(NULL != cache_); - ASSERT(CS_READY == cache_state_); - - std::string id = GetCacheID(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; - } - - std::unique_ptr stream( - cache_->WriteResource(id, kCacheBody)); - if (!stream) { - 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) { - std::unique_ptr stream( - cache_->WriteResource(id, kCacheHeader)); - if (!stream) { - LOG_F(LS_ERROR) << "Couldn't open header cache"; - return HE_CACHE; - } - - if (!HttpWriteCacheHeaders(&transaction_->response, stream.get(), NULL)) { - 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(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(request())); - } -} - -bool HttpClient::CheckCache() { - ASSERT(NULL != cache_); - ASSERT(CS_READY == cache_state_); - - std::string id = GetCacheID(request()); - if (!cache_->HasResource(id)) { - // No cache file available - return false; - } - - HttpError error = ReadCacheHeaders(id, true); - - if (HE_NONE == error) { - switch (HttpGetCacheState(*transaction_)) { - 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. - FALLTHROUGH(); - 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) { - std::unique_ptr stream( - cache_->ReadResource(id, kCacheHeader)); - if (!stream) { - return HE_CACHE; - } - - HttpData::HeaderCombine combine = - override ? HttpData::HC_REPLACE : HttpData::HC_AUTO; - - if (!HttpReadCacheHeaders(stream.get(), &transaction_->response, combine)) { - LOG_F(LS_ERROR) << "Error reading cache headers"; - return HE_CACHE; - } - - 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; - std::unique_ptr stream(cache_->ReadResource(id, kCacheBody)); - if (!stream || !stream->GetAvailable(&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) - && response().document) { - // Allocate on heap to not explode the stack. - const int array_size = 1024 * 64; - std::unique_ptr buffer(new char[array_size]); - StreamResult result = Flow(stream.get(), buffer.get(), array_size, - 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(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 we are ignoring the data, this is an intermediate header. - // TODO: don't signal intermediate headers. Instead, do all header-dependent - // processing now, and either set up the next request, or fail outright. - // TODO: by default, only write response documents with a success code. - SignalHeaderAvailable(this, !ignore_data, ignore_data ? 0 : data_size); - if (!ignore_data && !chunked && (data_size != SIZE_UNKNOWN) - && response().document) { - // Attempt to pre-allocate space for the downloaded data. - if (!response().document->ReserveSize(data_size)) { - return HE_OVERFLOW; - } - } - 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(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 (ShouldRedirect(NULL) - || ((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(*transaction_)) { - if (BeginCacheFile()) { - cache_state_ = CS_WRITING; - } - } - return HE_NONE; -} - -void HttpClient::onHttpComplete(HttpMode mode, HttpError err) { - if (((HE_DISCONNECTED == err) || (HE_CONNECT_FAILED == err) - || (HE_SOCKET_ERROR == err)) - && (HC_INTERNAL_SERVER_ERROR == response().scode) - && (attempt_ < retries_)) { - // If the response code has not changed from the default, then we haven't - // received anything meaningful from the server, so we are eligible for a - // retry. - ++attempt_; - if (request().document && !request().document->Rewind()) { - // Unable to replay the request document. - err = HE_STREAM; - } else { - release(); - connect(); - return; - } - } else if (err != HE_NONE) { - // fall through - } else if (mode == HM_CONNECT) { - base_.send(&transaction_->request); - return; - } else if ((mode == HM_SEND) || HttpCodeIsInformational(response().scode)) { - // If you're interested in informational headers, catch - // SignalHeaderAvailable. - base_.recv(&transaction_->response); - return; - } else { - if (!HttpShouldKeepAlive(response())) { - LOG(LS_VERBOSE) << "HttpClient: closing socket"; - base_.stream()->Close(); - } - std::string location; - if (ShouldRedirect(&location)) { - Url purl(location); - set_server(SocketAddress(purl.host(), purl.port())); - 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 && !request().document->Rewind()) { - // Unable to replay the request document. - ASSERT(REDIRECT_ALWAYS == redirect_action_); - err = HE_STREAM; - } - if (err == HE_NONE) { - ++redirects_; - context_.reset(); - response().clear(false); - release(); - start(); - return; - } - } else if ((HC_PROXY_AUTHENTICATION_REQUIRED == response().scode) - && (PROXY_HTTPS == proxy_.type)) { - std::string authorization, 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) { - HttpAuthContext *context = context_.get(); - HttpAuthResult res = HttpAuthenticate( - it->second.data(), it->second.size(), - proxy_.address, - ToString(request().verb), request().path, - proxy_.username, proxy_.password, - context, authorization, auth_method); - context_.reset(context); - if (res == HAR_RESPONSE) { - request().setHeader(HH_PROXY_AUTHORIZATION, authorization); - if (request().document && !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) { - // This shouldn't occur, since we return the stream to the pool upon command - // completion. - ASSERT(false); -} - -////////////////////////////////////////////////////////////////////// -// HttpClientDefault -////////////////////////////////////////////////////////////////////// - -HttpClientDefault::HttpClientDefault(SocketFactory* factory, - const std::string& agent, - HttpTransaction* transaction) - : ReuseSocketPool(factory ? factory : Thread::Current()->socketserver()), - HttpClient(agent, NULL, transaction) { - set_pool(this); -} - -////////////////////////////////////////////////////////////////////// - -} // namespace rtc diff --git a/webrtc/base/httpclient.h b/webrtc/base/httpclient.h deleted file mode 100644 index 569ff04ed8..0000000000 --- a/webrtc/base/httpclient.h +++ /dev/null @@ -1,196 +0,0 @@ -/* - * Copyright 2004 The WebRTC Project Authors. All rights reserved. - * - * Use of this source code is governed by a BSD-style license - * that can be found in the LICENSE file in the root of the source - * tree. An additional intellectual property rights grant can be found - * in the file PATENTS. All contributing project authors may - * be found in the AUTHORS file in the root of the source tree. - */ - -#ifndef WEBRTC_BASE_HTTPCLIENT_H__ -#define WEBRTC_BASE_HTTPCLIENT_H__ - -#include - -#include "webrtc/base/common.h" -#include "webrtc/base/httpbase.h" -#include "webrtc/base/nethelpers.h" -#include "webrtc/base/proxyinfo.h" -#include "webrtc/base/sigslot.h" -#include "webrtc/base/socketaddress.h" -#include "webrtc/base/socketpool.h" - -namespace rtc { - -////////////////////////////////////////////////////////////////////// -// Client-specific http utilities -////////////////////////////////////////////////////////////////////// - -// Write cache-relevant response headers to output stream. If size is non-null, -// it contains the length of the output in bytes. output may be null if only -// the length is desired. -bool HttpWriteCacheHeaders(const HttpResponseData* response, - StreamInterface* output, size_t* size); -// Read cached headers from a stream, and them merge them into the response -// object using the specified combine operation. -bool HttpReadCacheHeaders(StreamInterface* input, - HttpResponseData* response, - HttpData::HeaderCombine combine); - -////////////////////////////////////////////////////////////////////// -// HttpClient -// Implements an HTTP 1.1 client. -////////////////////////////////////////////////////////////////////// - -class DiskCache; -class HttpClient; -class IPNetPool; - -class SignalThread; -// What to do: Define STRICT_HTTP_ERROR=1 in your makefile. Use HttpError in -// your code (HttpErrorType should only be used for code that is shared -// with groups which have not yet migrated). -#if defined(STRICT_HTTP_ERROR) && STRICT_HTTP_ERROR -typedef HttpError HttpErrorType; -#else // !STRICT_HTTP_ERROR -typedef int HttpErrorType; -#endif // !STRICT_HTTP_ERROR - -class HttpClient : private IHttpNotify, public sigslot::has_slots<> { -public: - // If HttpRequestData and HttpResponseData objects are provided, they must - // be freed by the caller. Otherwise, an internal object is allocated. - HttpClient(const std::string& agent, StreamPool* pool, - HttpTransaction* transaction = NULL); - ~HttpClient() override; - - void set_pool(StreamPool* pool) { pool_ = pool; } - - void set_agent(const std::string& agent) { agent_ = agent; } - const std::string& agent() const { return agent_; } - - void set_proxy(const ProxyInfo& proxy) { proxy_ = proxy; } - const ProxyInfo& proxy() const { return proxy_; } - - // Request retries occur when the connection closes before the beginning of - // an http response is received. In these cases, the http server may have - // timed out the keepalive connection before it received our request. Note - // that if a request document cannot be rewound, no retry is made. The - // default is 1. - void set_request_retries(size_t retries) { retries_ = retries; } - size_t request_retries() const { return retries_; } - - enum RedirectAction { REDIRECT_DEFAULT, REDIRECT_ALWAYS, REDIRECT_NEVER }; - void set_redirect_action(RedirectAction action) { redirect_action_ = action; } - RedirectAction redirect_action() const { return redirect_action_; } - - enum UriForm { URI_DEFAULT, URI_ABSOLUTE, URI_RELATIVE }; - void set_uri_form(UriForm form) { uri_form_ = form; } - UriForm uri_form() const { return uri_form_; } - - void set_cache(DiskCache* cache) { ASSERT(!IsCacheActive()); cache_ = cache; } - bool cache_enabled() const { return (NULL != cache_); } - - // reset clears the server, request, and response structures. It will also - // abort an active request. - void reset(); - - void set_server(const SocketAddress& address); - const SocketAddress& server() const { return server_; } - - // Note: in order for HttpClient to retry a POST in response to - // an authentication challenge, a redirect response, or socket disconnection, - // the request document must support 'replaying' by calling Rewind() on it. - HttpTransaction* transaction() { return transaction_; } - const HttpTransaction* transaction() const { return transaction_; } - HttpRequestData& request() { return transaction_->request; } - const HttpRequestData& request() const { return transaction_->request; } - HttpResponseData& response() { return transaction_->response; } - const HttpResponseData& response() const { return transaction_->response; } - - // convenience methods - void prepare_get(const std::string& url); - void prepare_post(const std::string& url, const std::string& content_type, - StreamInterface* request_doc); - - // Convert HttpClient to a pull-based I/O model. - StreamInterface* GetDocumentStream(); - - // After you finish setting up your request, call start. - void start(); - - // Signalled when the header has finished downloading, before the document - // content is processed. You may change the response document in response - // to this signal. The second parameter indicates whether this is an - // intermediate (false) or final (true) header. An intermediate header is - // one that generates another request, such as a redirect or authentication - // challenge. The third parameter indicates the length of the response - // document, or else SIZE_UNKNOWN. Note: Do NOT abort the request in response - // to this signal. - sigslot::signal3 SignalHeaderAvailable; - // Signalled when the current request finishes. On success, err is 0. - sigslot::signal2 SignalHttpClientComplete; - -protected: - void connect(); - void release(); - - bool ShouldRedirect(std::string* location) const; - - bool BeginCacheFile(); - HttpError WriteCacheHeaders(const std::string& id); - void CompleteCacheFile(); - - bool CheckCache(); - HttpError ReadCacheHeaders(const std::string& id, bool override); - HttpError ReadCacheBody(const std::string& id); - - bool PrepareValidate(); - HttpError CompleteValidate(); - - HttpError OnHeaderAvailable(bool ignore_data, bool chunked, size_t data_size); - - void StartDNSLookup(); - void OnResolveResult(AsyncResolverInterface* resolver); - - // IHttpNotify Interface - HttpError onHttpHeaderComplete(bool chunked, size_t& data_size) override; - void onHttpComplete(HttpMode mode, HttpError err) override; - void onHttpClosed(HttpError err) override; - -private: - enum CacheState { CS_READY, CS_WRITING, CS_READING, CS_VALIDATING }; - bool IsCacheActive() const { return (cache_state_ > CS_READY); } - - std::string agent_; - StreamPool* pool_; - HttpBase base_; - SocketAddress server_; - ProxyInfo proxy_; - HttpTransaction* transaction_; - bool free_transaction_; - size_t retries_, attempt_, redirects_; - RedirectAction redirect_action_; - UriForm uri_form_; - std::unique_ptr context_; - DiskCache* cache_; - CacheState cache_state_; - AsyncResolverInterface* resolver_; -}; - -////////////////////////////////////////////////////////////////////// -// HttpClientDefault - Default implementation of HttpClient -////////////////////////////////////////////////////////////////////// - -class HttpClientDefault : public ReuseSocketPool, public HttpClient { -public: - HttpClientDefault(SocketFactory* factory, const std::string& agent, - HttpTransaction* transaction = NULL); -}; - -////////////////////////////////////////////////////////////////////// - -} // namespace rtc - -#endif // WEBRTC_BASE_HTTPCLIENT_H__