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| 1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "net/http/http_request_headers.h" | |
| 6 | |
| 7 #include "base/logging.h" | |
| 8 #include "base/string_util.h" | |
| 9 #include "net/http/http_util.h" | |
| 10 | |
| 11 namespace net { | |
| 12 | |
| 13 const char HttpRequestHeaders::kGetMethod[] = "GET"; | |
| 14 | |
| 15 const char HttpRequestHeaders::kCacheControl[] = "Cache-Control"; | |
| 16 const char HttpRequestHeaders::kConnection[] = "Connection"; | |
| 17 const char HttpRequestHeaders::kContentLength[] = "Content-Length"; | |
| 18 const char HttpRequestHeaders::kHost[] = "Host"; | |
| 19 const char HttpRequestHeaders::kPragma[] = "Pragma"; | |
| 20 const char HttpRequestHeaders::kProxyConnection[] = "Proxy-Connection"; | |
| 21 const char HttpRequestHeaders::kReferer[] = "Referer"; | |
| 22 const char HttpRequestHeaders::kUserAgent[] = "User-Agent"; | |
| 23 | |
| 24 HttpRequestHeaders::HttpRequestHeaders() {} | |
| 25 HttpRequestHeaders::~HttpRequestHeaders() {} | |
| 26 | |
| 27 void HttpRequestHeaders::SetRequestLine(const base::StringPiece& method, | |
| 28 const base::StringPiece& path, | |
| 29 const base::StringPiece& version) { | |
| 30 DCHECK(!method.empty()); | |
| 31 DCHECK(!path.empty()); | |
| 32 DCHECK(!version.empty()); | |
| 33 | |
| 34 method_.assign(method.data(), method.length()); | |
| 35 path_.assign(path.data(), path.length()); | |
| 36 version_.assign(version.data(), version.length()); | |
| 37 } | |
| 38 | |
| 39 void HttpRequestHeaders::SetHeader(const base::StringPiece& key, | |
| 40 const base::StringPiece& value) { | |
| 41 HeaderVector::iterator it = FindHeader(key); | |
| 42 if (it != headers_.end()) | |
| 43 it->value = value.as_string(); | |
| 44 else | |
| 45 headers_.push_back(HeaderKeyValuePair(key.as_string(), value.as_string())); | |
| 46 } | |
| 47 | |
| 48 void HttpRequestHeaders::RemoveHeader(const base::StringPiece& key) { | |
| 49 HeaderVector::iterator it = FindHeader(key); | |
| 50 if (it != headers_.end()) | |
| 51 headers_.erase(it); | |
| 52 } | |
| 53 | |
| 54 void HttpRequestHeaders::AddHeaderFromString( | |
| 55 const base::StringPiece& header_line) { | |
| 56 DCHECK_EQ(std::string::npos, header_line.find("\r\n")) | |
| 57 << "\"" << header_line << "\" contains CRLF."; | |
| 58 | |
| 59 const std::string::size_type key_end_index = header_line.find(":"); | |
| 60 if (key_end_index == std::string::npos) { | |
| 61 LOG(DFATAL) << "\"" << header_line << "\" is missing colon delimiter."; | |
| 62 return; | |
| 63 } | |
| 64 | |
| 65 if (key_end_index == 0) { | |
| 66 LOG(DFATAL) << "\"" << header_line << "\" is missing header key."; | |
| 67 return; | |
| 68 } | |
| 69 | |
| 70 const base::StringPiece header_key(header_line.data(), key_end_index); | |
| 71 | |
| 72 const std::string::size_type value_index = key_end_index + 1; | |
| 73 | |
| 74 if (value_index < header_line.size()) { | |
| 75 std::string header_value(header_line.data() + value_index, | |
| 76 header_line.size() - value_index); | |
| 77 std::string::const_iterator header_value_begin = | |
| 78 header_value.begin(); | |
| 79 std::string::const_iterator header_value_end = | |
| 80 header_value.end(); | |
| 81 HttpUtil::TrimLWS(&header_value_begin, &header_value_end); | |
| 82 SetHeader(header_key, | |
| 83 base::StringPiece(&*header_value_begin, | |
| 84 header_value_end - header_value_begin)); | |
| 85 } else if (value_index == header_line.size()) { | |
| 86 SetHeader(header_key, ""); | |
| 87 } else { | |
| 88 NOTREACHED(); | |
| 89 } | |
| 90 } | |
| 91 | |
| 92 void HttpRequestHeaders::MergeFrom(const HttpRequestHeaders& other) { | |
| 93 DCHECK(other.method_.empty()); | |
| 94 DCHECK(other.path_.empty()); | |
| 95 DCHECK(other.version_.empty()); | |
| 96 | |
| 97 for (HeaderVector::const_iterator it = other.headers_.begin(); | |
| 98 it != other.headers_.end(); ++it ) { | |
| 99 SetHeader(it->key, it->value); | |
| 100 } | |
| 101 } | |
| 102 | |
| 103 std::string HttpRequestHeaders::ToString() const { | |
| 104 std::string output; | |
| 105 if (!method_.empty()) { | |
| 106 DCHECK(!path_.empty()); | |
| 107 DCHECK(!version_.empty()); | |
| 108 output = StringPrintf( | |
| 109 "%s %s HTTP/%s\r\n", method_.c_str(), path_.c_str(), version_.c_str()); | |
| 110 } | |
| 111 for (HeaderVector::const_iterator it = headers_.begin(); | |
| 112 it != headers_.end(); ++it) { | |
| 113 if (!it->value.empty()) | |
| 114 StringAppendF(&output, "%s: %s\r\n", it->key.c_str(), it->value.c_str()); | |
| 115 else | |
| 116 StringAppendF(&output, "%s:\r\n", it->key.c_str()); | |
| 117 } | |
| 118 output.append("\r\n"); | |
| 119 return output; | |
| 120 } | |
| 121 | |
| 122 HttpRequestHeaders::HeaderVector::iterator | |
| 123 HttpRequestHeaders::FindHeader(const base::StringPiece& key) { | |
| 124 for (HeaderVector::iterator it = headers_.begin(); | |
| 125 it != headers_.end(); ++it) { | |
| 126 if (!base::strncasecmp(key.data(), it->key.data(), key.length())) | |
| 127 return it; | |
| 128 } | |
| 129 | |
| 130 return headers_.end(); | |
| 131 } | |
| 132 | |
| 133 } // namespace net | |
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