244 lines
7.1 KiB
C++
244 lines
7.1 KiB
C++
/* <!-- copyright */
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/*
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* aria2 - The high speed download utility
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*
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* Copyright (C) 2006 Tatsuhiro Tsujikawa
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* In addition, as a special exception, the copyright holders give
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* permission to link the code of portions of this program with the
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* OpenSSL library under certain conditions as described in each
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* individual source file, and distribute linked combinations
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* including the two.
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* You must obey the GNU General Public License in all respects
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* for all of the code used other than OpenSSL. If you modify
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* file(s) with this exception, you may extend this exception to your
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* version of the file(s), but you are not obligated to do so. If you
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* do not wish to do so, delete this exception statement from your
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* version. If you delete this exception statement from all source
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* files in the program, then also delete it here.
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*/
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/* copyright --> */
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#include "HttpHeader.h"
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#include <istream>
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#include "Range.h"
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#include "util.h"
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#include "A2STR.h"
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namespace aria2 {
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const std::string HttpHeader::LOCATION("Location");
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const std::string HttpHeader::TRANSFER_ENCODING("Transfer-Encoding");
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const std::string HttpHeader::CONTENT_ENCODING("Content-Encoding");
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const std::string HttpHeader::CONTENT_DISPOSITION("Content-Disposition");
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const std::string HttpHeader::SET_COOKIE("Set-Cookie");
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const std::string HttpHeader::CHUNKED("chunked");
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const std::string HttpHeader::GZIP("gzip");
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const std::string HttpHeader::DEFLATE("deflate");
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const std::string HttpHeader::CONTENT_TYPE("Content-Type");
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const std::string HttpHeader::RETRY_AFTER("Retry-After");
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const std::string HttpHeader::CONNECTION("Connection");
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const std::string HttpHeader::CLOSE("close");
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const std::string HttpHeader::CONTENT_LENGTH("Content-Length");
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const std::string HttpHeader::CONTENT_RANGE("Content-Range");
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const std::string HttpHeader::LAST_MODIFIED("Last-Modified");
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const std::string HttpHeader::ACCEPT_ENCODING("Accept-Encoding");
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const std::string HttpHeader::HTTP_1_1("HTTP/1.1");
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const std::string HttpHeader::S200("200");
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const std::string HttpHeader::S206("206");
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const std::string HttpHeader::S300("300");
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const std::string HttpHeader::S301("301");
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const std::string HttpHeader::S302("302");
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const std::string HttpHeader::S303("303");
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const std::string HttpHeader::S304("304");
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const std::string HttpHeader::S307("307");
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const std::string HttpHeader::S400("400");
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const std::string HttpHeader::S401("401");
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const std::string HttpHeader::S404("404");
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HttpHeader::HttpHeader() {}
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HttpHeader::~HttpHeader() {}
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void HttpHeader::put(const std::string& name, const std::string& value) {
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std::multimap<std::string, std::string>::value_type vt
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(util::toLower(name), value);
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table_.insert(vt);
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}
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bool HttpHeader::defined(const std::string& name) const {
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return table_.count(util::toLower(name)) >= 1;
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}
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const std::string& HttpHeader::getFirst(const std::string& name) const {
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std::multimap<std::string, std::string>::const_iterator itr =
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table_.find(util::toLower(name));
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if(itr == table_.end()) {
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return A2STR::NIL;
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} else {
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return (*itr).second;
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}
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}
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std::vector<std::string> HttpHeader::get(const std::string& name) const
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{
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std::vector<std::string> v;
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std::string n(util::toLower(name));
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std::pair<std::multimap<std::string, std::string>::const_iterator,
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std::multimap<std::string, std::string>::const_iterator> itrpair =
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table_.equal_range(n);
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std::multimap<std::string, std::string>::const_iterator first = itrpair.first;
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while(first != itrpair.second) {
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v.push_back((*first).second);
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++first;
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}
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return v;
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}
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unsigned int HttpHeader::getFirstAsUInt(const std::string& name) const {
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return getFirstAsULLInt(name);
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}
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uint64_t HttpHeader::getFirstAsULLInt(const std::string& name) const {
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const std::string& value = getFirst(name);
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if(value.empty()) {
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return 0;
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} else {
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return util::parseULLInt(value);
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}
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}
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RangeHandle HttpHeader::getRange() const
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{
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const std::string& rangeStr = getFirst(CONTENT_RANGE);
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if(rangeStr.empty()) {
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const std::string& contentLengthStr = getFirst(CONTENT_LENGTH);
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if(contentLengthStr.empty()) {
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return SharedHandle<Range>(new Range());
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} else {
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uint64_t contentLength = util::parseULLInt(contentLengthStr);
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if(contentLength == 0) {
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return SharedHandle<Range>(new Range());
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} else {
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return SharedHandle<Range>
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(new Range(0, contentLength-1, contentLength));
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}
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}
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}
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std::string byteRangeSpec;
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{
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// we expect that rangeStr looks like 'bytes 100-199/100'
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// but some server returns '100-199/100', omitting bytes-unit sepcifier
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// 'bytes'.
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std::pair<std::string, std::string> splist;
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util::divide(splist, rangeStr, ' ');
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if(splist.second.empty()) {
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// we assume bytes-unit specifier omitted.
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byteRangeSpec = splist.first;
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} else {
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byteRangeSpec = splist.second;
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}
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}
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std::pair<std::string, std::string> byteRangeSpecPair;
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util::divide(byteRangeSpecPair, byteRangeSpec, '/');
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if(util::strip(byteRangeSpecPair.first) == "*" ||
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util::strip(byteRangeSpecPair.second) == "*") {
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// If byte-range-resp-spec or instance-length is "*", we returns
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// empty Range. The former is usually sent with 416 (Request range
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// not satisfiable) status.
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return SharedHandle<Range>(new Range());
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}
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std::pair<std::string, std::string> byteRangeRespSpecPair;
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util::divide(byteRangeRespSpecPair, byteRangeSpecPair.first, '-');
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off_t startByte = util::parseLLInt(byteRangeRespSpecPair.first);
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off_t endByte = util::parseLLInt(byteRangeRespSpecPair.second);
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uint64_t entityLength = util::parseULLInt(byteRangeSpecPair.second);
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return SharedHandle<Range>(new Range(startByte, endByte, entityLength));
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}
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void HttpHeader::setResponseStatus(const std::string& responseStatus)
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{
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responseStatus_ = responseStatus;
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}
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void HttpHeader::setVersion(const std::string& version)
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{
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version_ = version;
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}
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void HttpHeader::setMethod(const std::string& method)
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{
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method_ = method;
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}
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void HttpHeader::setRequestPath(const std::string& requestPath)
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{
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requestPath_ = requestPath;
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}
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void HttpHeader::fill(std::istream& in)
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{
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std::string line;
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while(std::getline(in, line)) {
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line = util::strip(line);
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if(line.empty()) {
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continue;
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}
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std::pair<std::string, std::string> hp;
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util::divide(hp, line, ':');
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put(hp.first, hp.second);
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}
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}
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void HttpHeader::clearField()
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{
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table_.clear();
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}
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} // namespace aria2
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