1a8aa0dd05
Builds libwvmdrmengine.so, which is loaded by the new MediaDrm APIs to support playback of Widevine/CENC protected content. Change-Id: I6f57dd37083dfd96c402cb9dd137c7d74edc8f1c
107 lines
2.8 KiB
C++
107 lines
2.8 KiB
C++
// Copyright 2013 Google Inc. All Rights Reserved.
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#include "url_request.h"
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#include "http_socket.h"
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#include "log.h"
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namespace wvcdm {
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UrlRequest::UrlRequest(const std::string& url, const std::string& port)
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: is_connected_(false),
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port_("80"),
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request_(""),
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server_url_(url)
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{
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if (!port.empty()) {
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port_.assign(port);
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}
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if (socket_.Connect((server_url_).c_str(), port_, true)) {
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LOGD("connected to %s", socket_.domain_name().c_str());
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is_connected_ = true;
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} else {
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LOGE("failed to connect to %s, port=%s",
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socket_.domain_name().c_str(), port.c_str());
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}
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}
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UrlRequest::~UrlRequest()
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{
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socket_.CloseSocket();
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}
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void UrlRequest::AppendChunkToUpload(const std::string& data) {
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// format of chunk:
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// size of chunk in hex\r\n
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// data\r\n
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// . . .
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// 0\r\n
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// buffer to store length of chunk
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memset(buffer_, 0, kHttpBufferSize);
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snprintf(buffer_, kHttpBufferSize, "%x\r\n", data.size());
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request_.append(buffer_); // appends size of chunk
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LOGD("...\r\n%s", request_.c_str());
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request_.append(data);
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request_.append("\r\n"); // marks end of data
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}
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int UrlRequest::GetResponse(std::string& response) {
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response.clear();
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const int kTimeoutInMs = 1000;
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int bytes = 0;
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int total_bytes = 0;
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do {
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memset(buffer_, 0, kHttpBufferSize);
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bytes = socket_.Read(buffer_, kHttpBufferSize, kTimeoutInMs);
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if (bytes > 0) {
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response.append(buffer_, bytes);
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total_bytes += bytes;
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} else {
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if (bytes < 0) LOGE("read error = ", errno);
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// bytes == 0 indicates nothing to read
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}
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} while (bytes > 0);
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return total_bytes;
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}
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int UrlRequest::GetStatusCode(const std::string& response) {
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const std::string kHttpVersion("HTTP/1.1");
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int status_code = -1;
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size_t pos = response.find(kHttpVersion);
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if (pos != std::string::npos) {
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pos += kHttpVersion.size();
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sscanf(response.substr(pos).c_str(), "%d", &status_code);
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}
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return status_code;
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}
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bool UrlRequest::PostRequest(const std::string& data) {
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request_.assign("POST /");
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request_.append(socket_.resource_path());
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request_.append(" HTTP/1.1\r\n");
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request_.append("Host: ");
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request_.append(socket_.domain_name());
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request_.append("\r\nConnection: Keep-Alive\r\n");
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request_.append("Transfer-Encoding: chunked\r\n");
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request_.append("User-Agent: Widevine CDM v1.0\r\n");
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request_.append("Accept-Encoding: gzip,deflate\r\n");
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request_.append("Accept-Language: en-us,fr\r\n");
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request_.append("Accept-Charset: iso-8859-1,*,utf-8\r\n");
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request_.append("\r\n"); // empty line to terminate header
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// calls AppendChunkToUpload repeatedly for multiple chunks
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AppendChunkToUpload(data);
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// terminates last chunk with 0\r\n, then ends header with an empty line
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request_.append("0\r\n\r\n");
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socket_.Write(request_.c_str(), request_.size());
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return true;
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}
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} // namespace wvcdm
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