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// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/devtools/devtools_io_context.h"
#include <array>
#include "base/functional/bind.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/string_util.h"
#include "base/task/sequenced_task_runner.h"
#include "content/browser/blob_storage/chrome_blob_storage_context.h"
#include "content/browser/devtools/devtools_stream_blob.h"
#include "content/browser/devtools/devtools_stream_file.h"
namespace content {
DevToolsIOContext::Stream::Stream(
scoped_refptr<base::SequencedTaskRunner> task_runner)
: RefCountedDeleteOnSequence<DevToolsIOContext::Stream>(
std::move(task_runner)) {}
std::string DevToolsIOContext::Stream::Register(DevToolsIOContext* context) {
static unsigned s_last_stream_handle = 0;
const std::string handle = base::NumberToString(++s_last_stream_handle);
Register(context, handle);
return handle;
}
void DevToolsIOContext::Stream::Register(DevToolsIOContext* context,
const std::string& handle) {
context->RegisterStream(this, handle);
}
bool DevToolsIOContext::Stream::SupportsSeek() const {
return true;
}
DevToolsIOContext::Stream::~Stream() = default;
DevToolsIOContext::DevToolsIOContext() = default;
DevToolsIOContext::~DevToolsIOContext() = default;
void DevToolsIOContext::RegisterStream(scoped_refptr<Stream> stream,
const std::string& id) {
bool inserted = streams_.emplace(id, std::move(stream)).second;
DCHECK(inserted);
}
scoped_refptr<DevToolsIOContext::Stream> DevToolsIOContext::GetByHandle(
const std::string& handle) {
auto it = streams_.find(handle);
return it == streams_.end() ? nullptr : it->second;
}
bool DevToolsIOContext::Close(const std::string& handle) {
size_t erased_count = streams_.erase(handle);
return !!erased_count;
}
void DevToolsIOContext::DiscardAllStreams() {
streams_.clear();
}
// static
bool DevToolsIOContext::IsTextMimeType(const std::string& mime_type) {
static const auto kTextMIMETypePrefixes = std::to_array({
"text/",
"application/x-javascript",
"application/json",
"application/xml",
});
for (size_t i = 0; i < std::size(kTextMIMETypePrefixes); ++i) {
if (base::StartsWith(mime_type, kTextMIMETypePrefixes[i],
base::CompareCase::INSENSITIVE_ASCII))
return true;
}
return false;
}
} // namespace content
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