Adapted from: http://stackoverflow.com/questions/10982717/get-html-without-header-with-boostasio
| 40 | // Adapted from: |
| 41 | // http://stackoverflow.com/questions/10982717/get-html-without-header-with-boostasio |
| 42 | Status Do(std::ostream* out, int expected_code, const std::string& method) { |
| 43 | try { |
| 44 | tcp::iostream request_stream; |
| 45 | request_stream.connect(host, boost::lexical_cast<std::string>(port)); |
| 46 | if (!request_stream) return Status("Could not connect request_stream"); |
| 47 | |
| 48 | request_stream << method << " " << url_path << " HTTP/1.1\r\n"; |
| 49 | request_stream << "Host: " << host << ":" << port << "\r\n"; |
| 50 | request_stream << "Accept: */*\r\n"; |
| 51 | request_stream << "Cache-Control: no-cache\r\n"; |
| 52 | if (method == "POST") { |
| 53 | request_stream << "Content-Length: 0\r\n"; |
| 54 | } |
| 55 | for (const auto& header : headers) { |
| 56 | request_stream << header.first << ": " << header.second << "\r\n"; |
| 57 | } |
| 58 | |
| 59 | request_stream << "Connection: close\r\n\r\n"; |
| 60 | request_stream.flush(); |
| 61 | |
| 62 | std::string line1; |
| 63 | getline(request_stream, line1); |
| 64 | if (!request_stream) return Status("No response"); |
| 65 | |
| 66 | std::stringstream response_stream(line1); |
| 67 | std::string http_version; |
| 68 | response_stream >> http_version; |
| 69 | |
| 70 | unsigned int status_code; |
| 71 | response_stream >> status_code; |
| 72 | |
| 73 | std::string status_message; |
| 74 | getline(response_stream, status_message); |
| 75 | if (!response_stream || http_version.substr(0,5) != "HTTP/") { |
| 76 | return Status("Malformed response"); |
| 77 | } |
| 78 | |
| 79 | if (status_code != expected_code) { |
| 80 | return Status(strings::Substitute("Unexpected status code: $0", status_code)); |
| 81 | } |
| 82 | |
| 83 | (*out) << request_stream.rdbuf(); |
| 84 | return Status::OK(); |
| 85 | } catch (const std::exception& e){ |
| 86 | return Status(e.what()); |
| 87 | } |
| 88 | } |
| 89 | |
| 90 | Status Get(ostream* out, int expected_code = 200) { |
| 91 | return Do(out, expected_code, "GET"); |