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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "net/http/http_cache_transaction.h" | 5 #include "net/http/http_cache_transaction.h" |
6 | 6 |
7 #include "build/build_config.h" | 7 #include "build/build_config.h" |
8 | 8 |
9 #if defined(OS_POSIX) | 9 #if defined(OS_POSIX) |
10 #include <unistd.h> | 10 #include <unistd.h> |
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2397 request_ = custom_request_.get(); | 2397 request_ = custom_request_.get(); |
2398 } | 2398 } |
2399 DCHECK(custom_request_.get()); | 2399 DCHECK(custom_request_.get()); |
2400 | 2400 |
2401 bool use_if_range = partial_.get() && !partial_->IsCurrentRangeCached() && | 2401 bool use_if_range = partial_.get() && !partial_->IsCurrentRangeCached() && |
2402 !invalid_range_; | 2402 !invalid_range_; |
2403 | 2403 |
2404 if (!use_if_range) { | 2404 if (!use_if_range) { |
2405 // stale-while-revalidate is not useful when we only have a partial response | 2405 // stale-while-revalidate is not useful when we only have a partial response |
2406 // cached, so don't set the header in that case. | 2406 // cached, so don't set the header in that case. |
2407 HttpResponseHeaders::FreshnessLifetimes lifetime = | 2407 HttpResponseHeaders::FreshnessLifetimes lifetimes = |
2408 response_.headers->GetFreshnessLifetimes(response_.response_time); | 2408 response_.headers->GetFreshnessLifetimes(response_.response_time); |
2409 if (lifetime.stale > TimeDelta()) { | 2409 if (lifetimes.staleness > TimeDelta()) { |
2410 TimeDelta current_age = response_.headers->GetCurrentAge( | 2410 TimeDelta current_age = response_.headers->GetCurrentAge( |
2411 response_.request_time, response_.response_time, Time::Now()); | 2411 response_.request_time, response_.response_time, Time::Now()); |
2412 | 2412 |
2413 custom_request_->extra_headers.SetHeader( | 2413 custom_request_->extra_headers.SetHeader( |
2414 kFreshnessHeader, | 2414 kFreshnessHeader, |
2415 base::StringPrintf("max-age=%" PRId64 | 2415 base::StringPrintf("max-age=%" PRId64 |
2416 ",stale-while-revalidate=%" PRId64 ",age=%" PRId64, | 2416 ",stale-while-revalidate=%" PRId64 ",age=%" PRId64, |
2417 lifetime.fresh.InSeconds(), | 2417 lifetimes.freshness.InSeconds(), |
2418 lifetime.stale.InSeconds(), | 2418 lifetimes.staleness.InSeconds(), |
2419 current_age.InSeconds())); | 2419 current_age.InSeconds())); |
2420 } | 2420 } |
2421 } | 2421 } |
2422 | 2422 |
2423 if (!etag_value.empty()) { | 2423 if (!etag_value.empty()) { |
2424 if (use_if_range) { | 2424 if (use_if_range) { |
2425 // We don't want to switch to WRITE mode if we don't have this block of a | 2425 // We don't want to switch to WRITE mode if we don't have this block of a |
2426 // byte-range request because we may have other parts cached. | 2426 // byte-range request because we may have other parts cached. |
2427 custom_request_->extra_headers.SetHeader( | 2427 custom_request_->extra_headers.SetHeader( |
2428 HttpRequestHeaders::kIfRange, etag_value); | 2428 HttpRequestHeaders::kIfRange, etag_value); |
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2946 | 2946 |
2947 void HttpCache::Transaction::OnIOComplete(int result) { | 2947 void HttpCache::Transaction::OnIOComplete(int result) { |
2948 // TODO(vadimt): Remove ScopedProfile below once crbug.com/422516 is fixed. | 2948 // TODO(vadimt): Remove ScopedProfile below once crbug.com/422516 is fixed. |
2949 tracked_objects::ScopedProfile tracking_profile( | 2949 tracked_objects::ScopedProfile tracking_profile( |
2950 FROM_HERE_WITH_EXPLICIT_FUNCTION("422516 Transaction::OnIOComplete")); | 2950 FROM_HERE_WITH_EXPLICIT_FUNCTION("422516 Transaction::OnIOComplete")); |
2951 | 2951 |
2952 DoLoop(result); | 2952 DoLoop(result); |
2953 } | 2953 } |
2954 | 2954 |
2955 } // namespace net | 2955 } // namespace net |
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