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// Copyright (c) 2010 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "webkit/glue/media/media_resource_loader_bridge_factory.h"
#include "base/format_macros.h"
#include "base/string_util.h"
#include "base/stringprintf.h"
namespace {
// A constant for an unknown position.
const int64 kPositionNotSpecified = -1;
} // namespace
namespace webkit_glue {
MediaResourceLoaderBridgeFactory::MediaResourceLoaderBridgeFactory(
const GURL& referrer,
const std::string& frame_origin,
const std::string& main_frame_origin,
int origin_pid,
int appcache_host_id,
int32 routing_id)
: referrer_(referrer),
frame_origin_(frame_origin),
main_frame_origin_(main_frame_origin),
origin_pid_(origin_pid),
appcache_host_id_(appcache_host_id),
routing_id_(routing_id) {
}
ResourceLoaderBridge* MediaResourceLoaderBridgeFactory::CreateBridge(
const GURL& url,
int load_flags,
int64 first_byte_position,
int64 last_byte_position) {
webkit_glue::ResourceLoaderBridge::RequestInfo request_info;
request_info.method = "GET";
request_info.url = url;
request_info.first_party_for_cookies = url;
request_info.referrer = referrer_;
request_info.frame_origin = frame_origin_;
request_info.main_frame_origin = main_frame_origin_;
request_info.headers = GenerateHeaders(first_byte_position,
last_byte_position);
request_info.load_flags = load_flags;
request_info.requestor_pid = origin_pid_;
request_info.request_type = ResourceType::MEDIA;
request_info.appcache_host_id = appcache_host_id_;
request_info.routing_id = routing_id_;
return webkit_glue::ResourceLoaderBridge::Create(request_info);
}
// static
const std::string MediaResourceLoaderBridgeFactory::GenerateHeaders (
int64 first_byte_position, int64 last_byte_position) {
// Construct the range header.
std::string header;
if (first_byte_position > kPositionNotSpecified &&
last_byte_position > kPositionNotSpecified) {
if (first_byte_position <= last_byte_position) {
header = base::StringPrintf("Range: bytes=%" PRId64 "-%" PRId64,
first_byte_position,
last_byte_position);
}
} else if (first_byte_position > kPositionNotSpecified) {
header = base::StringPrintf("Range: bytes=%" PRId64 "-",
first_byte_position);
} else if (last_byte_position > kPositionNotSpecified) {
NOTIMPLEMENTED() << "Suffix range not implemented";
}
return header;
}
} // namespace webkit_glue
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