wrapper of TLS library to connect to HTTPS servers
Dependents: HTTPSClientExample
This library provides a simple interface to send GET requests over HTTPS. Notice that this library uses the axTLS library for the implementation of TLS.
Import programHTTPSClientExample
Connect to twitter.com and copies this webpage to a file.
Diff: HTTPSClient.cpp
- Revision:
- 0:ab9011f6ede5
- Child:
- 1:95f92eed4e09
diff -r 000000000000 -r ab9011f6ede5 HTTPSClient.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/HTTPSClient.cpp Wed Sep 04 13:24:29 2013 +0000 @@ -0,0 +1,90 @@ +#include "HTTPSClient.h" +#include "HTTPHeader.h" +#include <stdio.h> +#include <string.h> + +HTTPSClient::HTTPSClient(): +_con() +{ +} + +bool HTTPSClient::connect(const std::string& host) +{ + if(_con.is_connected()) + return false; + + return _con.connect(host.c_str()) == 0; +} + +std::string HTTPSClient::readLine() +{ + std::string line; + char c; + _con.receive_all(&c, 1); + while(c != '\r') + { + line += c; + _con.receive_all(&c, 1); + } + _con.receive_all(&c, 1); // skip \n + return line; +} + +HTTPHeader HTTPSClient::readHeader() +{ + HTTPHeader hdr; + std::string line = readLine(); + sscanf(line.c_str(), "HTTP/1.1 %d OK", &hdr._status); + do + { + if(!line.compare(0,strlen("Content-Length"), "Content-Length")) + sscanf(line.c_str(), "Content-Length: %d", &hdr._bodyLength); + line = readLine(); + }while(line.size()); + return hdr; +} + +int HTTPSClient::get(const std::string& path, HTTPHeader *hdr) +{ + if(!_con.is_connected()) + return -1; + + const std::string &request = HTTPHeader::getRequest(path, _con.get_address(), 443); + + if(_con.send_all((char*)request.c_str(), request.size()+1) != request.size()+1) + return -1; + + *hdr = readHeader(); + return hdr->_status == HTTP_OK ? 0 : -1; +} + +int HTTPSClient::get(const std::string& path, HTTPHeader *hdr, char *data, int length) +{ + if(!_con.is_connected()) + return -1; + + if(hdr != NULL) + { + const std::string &request = HTTPHeader::getRequest(path, _con.get_address(), 443); + if(_con.send_all((char*)request.c_str(), request.size()+1) != request.size()+1) + return -1; + *hdr = readHeader(); + if(hdr->_status != HTTP_OK) + return -1; + + if(hdr->_bodyLength > 0) + return _con.receive_all(data, hdr->_bodyLength > length ? length : hdr->_bodyLength); + + return 0; + } + else + return _con.receive_all(data, length); +} + +bool HTTPSClient::disconnect() +{ + if(!_con.is_connected()) + return true; + + return _con.close() == 0; +}