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HTTP::Parser: Content length fix, made ::GetHeader and ::hasHeader case-insensitive, preferring identical case if it is present.

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This commit is contained in:
Thulinma 2020-03-09 19:26:03 +01:00
parent 4ed5dd21e3
commit c1c35c75f9
1 changed files with 20 additions and 14 deletions
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32
lib/http_parser.cpp
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@ -8,6 +8,7 @@
#include "timing.h"
#include "url.h"
#include "util.h"
#include <strings.h>
#include <iomanip>
/// This constructor creates an empty HTTP::Parser, ready for use for either reading or writing.
@ -412,17 +413,28 @@ std::string HTTP::Parser::getUrl(){
/// Returns header i, if set.
const std::string &HTTP::Parser::GetHeader(const std::string &i) const{
if (headers.count(i)){
return headers.at(i);
}else{
if (headers.count(i)){return headers.at(i);}
for (std::map<std::string, std::string>::const_iterator it = headers.begin(); it != headers.end(); ++it){
if (it->first.length() != i.length()){continue;}
if (strncasecmp(it->first.c_str(), i.c_str(), i.length()) == 0){
return it->second;
}
}
//Return empty string if not found
static const std::string empty;
return empty;
}
}
/// Returns header i, if set.
bool HTTP::Parser::hasHeader(const std::string &i) const{
return headers.count(i);
if (headers.count(i)){return true;}
for (std::map<std::string, std::string>::const_iterator it = headers.begin(); it != headers.end(); ++it){
if (it->first.length() != i.length()){continue;}
if (strncasecmp(it->first.c_str(), i.c_str(), i.length()) == 0){
return true;
}
}
return false;
}
/// Returns POST variable i, if set.
@ -594,12 +606,6 @@ bool HTTP::Parser::parse(std::string &HTTPbuffer, Util::DataCallback &cb){
body.reserve(length);
}
}
if (GetHeader("Content-length") != ""){
length = atoi(GetHeader("Content-length").c_str());
if (!bodyCallback && (&cb == &Util::defaultDataCallback) && body.capacity() < length){
body.reserve(length);
}
}
if (GetHeader("Transfer-Encoding") == "chunked"){
getChunks = true;
doingChunk = 0;
@ -713,8 +719,8 @@ bool HTTP::Parser::parse(std::string &HTTPbuffer, Util::DataCallback &cb){
if (shouldAppend){body.append(HTTPbuffer, 0, toappend);}
HTTPbuffer.erase(0, toappend);
// return false when callbacks are used.
return shouldAppend;
// return true if there is no body, otherwise we only stop when the connection is dropped
return true;
}
}
}