Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(235)

Issues Search
    My Issues | Starred     Open | Closed | All

Unified Diff: webrtc/base/httpclient.cc

Issue 2694753002: Delete httpclient.c and related files. (Closed)
Patch Set: Created 3 years, 10 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View side-by-side diff with in-line comments
Download patch
« no previous file with comments | « webrtc/base/httpclient.h ('k') | webrtc/base/socketpool.h » ('j') | no next file with comments »
Expand Comments ('e') | Collapse Comments ('c') | Show Comments Hide Comments ('s')
Index: webrtc/base/httpclient.cc
diff --git a/webrtc/base/httpclient.cc b/webrtc/base/httpclient.cc
deleted file mode 100644
index e65eb9e80c4f05db2f500d91a923f7bee8669d34..0000000000000000000000000000000000000000
--- a/webrtc/base/httpclient.cc
+++ /dev/null
@@ -1,836 +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 <time.h>
-#include <algorithm>
-#include <memory>
-#include "webrtc/base/asyncsocket.h"
-#include "webrtc/base/checks.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) {
- RTC_DCHECK(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<time_t>(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<size_t>(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
- RTC_NOTREACHED();
- return;
- }
-
- RTC_DCHECK(!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.
- RTC_NOTREACHED();
- 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) {
- RTC_DCHECK(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<char> 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<char> 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() {
- RTC_DCHECK(NULL != cache_);
- RTC_DCHECK(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<StreamInterface> 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<StreamInterface> 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<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(request()));
- }
-}
-
-bool HttpClient::CheckCache() {
- RTC_DCHECK(NULL != cache_);
- RTC_DCHECK(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<StreamInterface> 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<StreamInterface> 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<char[]> 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() {
- RTC_DCHECK(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() {
- RTC_DCHECK(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
- }
-
- RTC_DCHECK(!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<char> 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.
- RTC_DCHECK(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.
- RTC_NOTREACHED();
-}
-
-//////////////////////////////////////////////////////////////////////
-// 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
« no previous file with comments | « webrtc/base/httpclient.h ('k') | webrtc/base/socketpool.h » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698