mirror of
https://github.com/chromium/crashpad.git
synced 2024-12-29 00:32:35 +08:00
0c322ecc3f
This adds zlib to Crashpad. By default in standalone Crashpad builds, the system zlib will be used where available. A copy of Chromium’s zlib (currently a slightly patched 1.2.11) is checked out via DEPS into third_party for use on Windows, which does not have a system zlib. zlib is used to produce gzip streams for HTTP upload request bodies sent by crashpad_handler by default. The Content-Encoding: gzip header is set for these compressed request bodies. Compression can be disabled for upload to servers without corresponding decompression support by starting crashpad_handler with the --no-upload-gzip option. Most minidumps compress quite well with zlib. A size reduction of 90% is not uncommon. BUG=crashpad:157 TEST=crashpad_util_test GzipHTTPBodyStream.*:HTTPTransport.* Change-Id: I99b86db3952c3685cd78f5dc858a60b54399c513 Reviewed-on: https://chromium-review.googlesource.com/438585 Reviewed-by: Robert Sesek <rsesek@chromium.org>
68 lines
1.8 KiB
C++
68 lines
1.8 KiB
C++
// Copyright 2017 The Crashpad Authors. All rights reserved.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
#ifndef CRASHPAD_UTIL_NET_HTTP_BODY_GZIP_H_
|
|
#define CRASHPAD_UTIL_NET_HTTP_BODY_GZIP_H_
|
|
|
|
#include <stdint.h>
|
|
#include <sys/types.h>
|
|
|
|
#include <memory>
|
|
|
|
#include "base/macros.h"
|
|
#include "util/file/file_io.h"
|
|
#include "util/net/http_body.h"
|
|
|
|
extern "C" {
|
|
typedef struct z_stream_s z_stream;
|
|
} // extern "C"
|
|
|
|
namespace crashpad {
|
|
|
|
//! \brief An implementation of HTTPBodyStream that `gzip`-compresses another
|
|
//! HTTPBodyStream.
|
|
class GzipHTTPBodyStream : public HTTPBodyStream {
|
|
public:
|
|
explicit GzipHTTPBodyStream(std::unique_ptr<HTTPBodyStream> source);
|
|
|
|
~GzipHTTPBodyStream() override;
|
|
|
|
// HTTPBodyStream:
|
|
FileOperationResult GetBytesBuffer(uint8_t* buffer, size_t max_len) override;
|
|
|
|
private:
|
|
enum State : int {
|
|
kUninitialized,
|
|
kOperating,
|
|
kInputEOF,
|
|
kFinished,
|
|
kError,
|
|
};
|
|
|
|
// Calls deflateEnd() and transitions state_ to state. If deflateEnd() fails,
|
|
// logs a message and transitions state_ to State::kError.
|
|
void Done(State state);
|
|
|
|
uint8_t input_[4096];
|
|
std::unique_ptr<HTTPBodyStream> source_;
|
|
std::unique_ptr<z_stream> z_stream_;
|
|
State state_;
|
|
|
|
DISALLOW_COPY_AND_ASSIGN(GzipHTTPBodyStream);
|
|
};
|
|
|
|
} // namespace crashpad
|
|
|
|
#endif // CRASHPAD_UTIL_NET_HTTP_BODY_GZIP_H_
|