mirror of
https://github.com/dashr9230/SA-MP.git
synced 2024-11-23 14:29:52 +00:00
401 lines
9.6 KiB
C++
401 lines
9.6 KiB
C++
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
|
|
#ifdef WIN32
|
|
# include <windows.h>
|
|
#else
|
|
# include <errno.h>
|
|
# include <sys/types.h>
|
|
# include <sys/socket.h>
|
|
# include <sys/wait.h>
|
|
# include <netinet/in.h>
|
|
# include <netdb.h>
|
|
#endif
|
|
|
|
#include "httpclient.h"
|
|
#include "runutil.h"
|
|
|
|
//----------------------------------------------------
|
|
|
|
CHttpClient::CHttpClient()
|
|
{
|
|
memset(&m_Request,0,sizeof(HTTP_REQUEST));
|
|
memset(&m_Response,0,sizeof(HTTP_RESPONSE));
|
|
m_iError = HTTP_SUCCESS; // Request is successful until otherwise indicated
|
|
m_iSocket = (-1);
|
|
|
|
// Winsock init
|
|
#ifdef WIN32
|
|
WORD wVersionRequested;
|
|
WSADATA wsaData;
|
|
wVersionRequested = MAKEWORD(2,2);
|
|
WSAStartup(wVersionRequested,&wsaData);
|
|
#endif
|
|
}
|
|
|
|
//----------------------------------------------------
|
|
|
|
CHttpClient::~CHttpClient()
|
|
{
|
|
// Deallocate the request data memory
|
|
if(m_Request.file) free(m_Request.file);
|
|
if(m_Request.host) free(m_Request.host);
|
|
if(m_Request.referer) free(m_Request.referer);
|
|
|
|
if(m_Request.rtype == HTTP_POST) {
|
|
if(m_Request.data) free(m_Request.data);
|
|
}
|
|
|
|
// Deallocate the response data memory
|
|
if(m_Response.header) free(m_Response.header);
|
|
if(m_Response.response) free(m_Response.response);
|
|
|
|
// Winsock cleanup
|
|
#ifdef WIN32
|
|
WSACleanup();
|
|
#endif
|
|
}
|
|
|
|
//----------------------------------------------------
|
|
|
|
int CHttpClient::ProcessURL(int iType, char *szURL, char *szPostData, char *szReferer)
|
|
{
|
|
printf("CHttpClient::ProcessURL %s\n", szURL); // Thanks Kalcor!
|
|
|
|
InitRequest(iType,szURL,szPostData,szReferer);
|
|
|
|
Process();
|
|
|
|
return m_iError;
|
|
}
|
|
|
|
//----------------------------------------------------
|
|
|
|
bool CHttpClient::GetHeaderValue(char *szHeaderName,char *szReturnBuffer, int iBufSize)
|
|
{
|
|
char *szHeaderStart;
|
|
char *szHeaderEnd;
|
|
int iLengthSearchHeader = strlen(szHeaderName);
|
|
int iCopyLength;
|
|
|
|
szHeaderStart = Util_stristr(m_Response.header,szHeaderName);
|
|
if(!szHeaderStart) {
|
|
return false;
|
|
}
|
|
szHeaderStart+=iLengthSearchHeader+1;
|
|
|
|
szHeaderEnd = strchr(szHeaderStart,'\n');
|
|
if(!szHeaderEnd) {
|
|
szHeaderEnd = m_Response.header + strlen(m_Response.header); // (END OF STRING)
|
|
}
|
|
|
|
iCopyLength = szHeaderEnd - szHeaderStart;
|
|
if(iBufSize < iCopyLength) {
|
|
return false;
|
|
}
|
|
|
|
memcpy(szReturnBuffer,szHeaderStart,iCopyLength);
|
|
szReturnBuffer[iCopyLength] = '\0';
|
|
return true;
|
|
}
|
|
|
|
//----------------------------------------------------
|
|
|
|
bool CHttpClient::Connect(char *szHost, int iPort)
|
|
{
|
|
struct sockaddr_in sa;
|
|
struct hostent *hp;
|
|
|
|
// Hostname translation
|
|
if((hp=(struct hostent *)gethostbyname(szHost)) == NULL ) {
|
|
m_iError=HTTP_ERROR_BAD_HOST;
|
|
return false;
|
|
}
|
|
|
|
// Prepare a socket
|
|
memset(&sa,0,sizeof(sa));
|
|
memcpy(&sa.sin_addr,hp->h_addr,hp->h_length);
|
|
sa.sin_family = hp->h_addrtype;
|
|
sa.sin_port = htons((unsigned short)iPort);
|
|
|
|
if((m_iSocket=socket(AF_INET,SOCK_STREAM,0)) < 0) {
|
|
m_iError=HTTP_ERROR_NO_SOCKET;
|
|
return false;
|
|
}
|
|
|
|
// Try to connect
|
|
if(connect(m_iSocket,(struct sockaddr *)&sa,sizeof sa) < 0) {
|
|
CloseConnection();
|
|
m_iError=HTTP_ERROR_CANT_CONNECT;
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
//----------------------------------------------------
|
|
|
|
void CHttpClient::CloseConnection()
|
|
{
|
|
#ifdef WIN32
|
|
closesocket(m_iSocket);
|
|
#else
|
|
close(m_iSocket);
|
|
#endif
|
|
}
|
|
|
|
//----------------------------------------------------
|
|
|
|
bool CHttpClient::Send(char *szData)
|
|
{
|
|
if(send(m_iSocket,szData,strlen(szData),0) < 0) {
|
|
m_iError = HTTP_ERROR_CANT_WRITE;
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
//----------------------------------------------------
|
|
|
|
int CHttpClient::Recv(char *szBuffer, int iBufferSize)
|
|
{
|
|
return recv(m_iSocket,szBuffer,iBufferSize,0);
|
|
}
|
|
|
|
//----------------------------------------------------
|
|
|
|
void CHttpClient::InitRequest(int iType, char *szURL, char *szPostData, char *szReferer)
|
|
{
|
|
char *port; // port string
|
|
char *port_char; // position of ':' if any
|
|
unsigned int slash_pos; // position of first '/' numeric
|
|
char *slash_ptr;
|
|
char *szUseURL; // incase we have to cat something to it.
|
|
|
|
szUseURL = (char *)malloc(strlen(szURL)+256);
|
|
strcpy(szUseURL,szURL);
|
|
|
|
m_Request.rtype = iType;
|
|
m_Request.referer = (char *)malloc(strlen(szReferer)+1);
|
|
strcpy(m_Request.referer,szReferer);
|
|
|
|
if(iType==HTTP_POST) {
|
|
m_Request.data=(char *)malloc(strlen(szPostData)+1);
|
|
strcpy(m_Request.data,szPostData);
|
|
}
|
|
|
|
// Copy hostname from URL
|
|
slash_ptr = strchr(szUseURL,'/');
|
|
if(!slash_ptr) {
|
|
strcat(szUseURL,"/");
|
|
slash_ptr = strchr(szUseURL,'/');
|
|
}
|
|
|
|
slash_pos=(slash_ptr-szUseURL);
|
|
m_Request.host=(char *)malloc(slash_pos+1);
|
|
memcpy(m_Request.host,szUseURL,slash_pos);
|
|
m_Request.host[slash_pos]='\0';
|
|
|
|
// Copy the rest of the url to the file string.
|
|
m_Request.file=(char *)malloc((strlen(szUseURL)-slash_pos)+1);
|
|
strcpy(m_Request.file,strchr(szUseURL,'/'));
|
|
|
|
// Any special port used in the URL?
|
|
if((port_char=strchr(m_Request.host,':'))!=NULL) {
|
|
port=(char *)malloc(strlen(port_char));
|
|
strcpy(port,port_char+1);
|
|
*port_char='\0';
|
|
m_Request.port = atoi(port);
|
|
free(port);
|
|
}
|
|
else {
|
|
m_Request.port = 80;
|
|
}
|
|
|
|
free(szUseURL);
|
|
}
|
|
|
|
//----------------------------------------------------
|
|
|
|
void CHttpClient::Process()
|
|
{
|
|
int header_len;
|
|
char *request_head;
|
|
|
|
if(!Connect(m_Request.host,m_Request.port)) {
|
|
return;
|
|
}
|
|
|
|
// Build the HTTP Header
|
|
switch(m_Request.rtype)
|
|
{
|
|
case HTTP_GET:
|
|
header_len = strlen(m_Request.file)+strlen(m_Request.host)+
|
|
(strlen(GET_FORMAT)-8)+strlen(USER_AGENT)+
|
|
strlen(m_Request.referer);
|
|
request_head = (char *)malloc(header_len+1);
|
|
sprintf(request_head,GET_FORMAT,m_Request.file,USER_AGENT,m_Request.referer,m_Request.host);
|
|
break;
|
|
|
|
case HTTP_HEAD:
|
|
header_len = strlen(m_Request.file)+strlen(m_Request.host)+
|
|
(strlen(HEAD_FORMAT)-8)+strlen(USER_AGENT)+
|
|
strlen(m_Request.referer);
|
|
request_head = (char *)malloc(header_len+1);
|
|
sprintf(request_head,HEAD_FORMAT,m_Request.file,USER_AGENT,m_Request.referer,m_Request.host);
|
|
break;
|
|
|
|
case HTTP_POST:
|
|
header_len = strlen(m_Request.data)+strlen(m_Request.file)+
|
|
strlen(m_Request.host)+strlen(POST_FORMAT)+
|
|
strlen(USER_AGENT)+strlen(m_Request.referer);
|
|
request_head = (char *)malloc(header_len+1);
|
|
sprintf(request_head,POST_FORMAT,m_Request.file,USER_AGENT,m_Request.referer,m_Request.host,strlen(m_Request.data),m_Request.data);
|
|
break;
|
|
}
|
|
|
|
if(!Send(request_head)) {
|
|
free(request_head);
|
|
return;
|
|
}
|
|
|
|
free(request_head);
|
|
|
|
HandleEntity();
|
|
}
|
|
|
|
//----------------------------------------------------
|
|
|
|
#define RECV_BUFFER_SIZE 4096
|
|
|
|
void CHttpClient::HandleEntity()
|
|
{
|
|
int bytes_total = 0;
|
|
int bytes_read = 0;
|
|
char *buffer = (char *)malloc(RECV_BUFFER_SIZE);
|
|
char *response = (char *)malloc(1);
|
|
char *header;
|
|
char *head_end;
|
|
char *pcontent_buf;
|
|
char *content_len_str;
|
|
|
|
bool header_got = false;
|
|
bool has_content_len = false;
|
|
int header_len = 0;
|
|
int content_len = 0;
|
|
|
|
while((bytes_read=Recv(buffer,RECV_BUFFER_SIZE)) > 0)
|
|
{
|
|
bytes_total+=bytes_read;
|
|
response=(char *)realloc(response,bytes_total+1);
|
|
memcpy(response+(bytes_total-bytes_read),buffer,(unsigned int)bytes_read);
|
|
|
|
if(!header_got)
|
|
{
|
|
if((head_end=strstr(response,"\r\n\r\n"))!=NULL
|
|
|| (head_end=strstr(response,"\n\n"))!=NULL)
|
|
{
|
|
header_got=true;
|
|
|
|
header_len=(head_end-response);
|
|
header=(char *)malloc(header_len+1);
|
|
memcpy(header,response,header_len);
|
|
header[header_len]='\0';
|
|
|
|
if((*(response+header_len))=='\n') /* LFLF */
|
|
{
|
|
bytes_total-=(header_len+2);
|
|
memmove(response,(response+(header_len+2)),bytes_total);
|
|
}
|
|
else /* assume CRLFCRLF */
|
|
{
|
|
bytes_total-=(header_len+4);
|
|
memmove(response,(response+(header_len+4)),bytes_total);
|
|
}
|
|
|
|
/* find the content-length if available */
|
|
if((pcontent_buf=Util_stristr(header,"CONTENT-LENGTH:"))!=NULL)
|
|
{
|
|
has_content_len=true;
|
|
|
|
pcontent_buf+=16;
|
|
while(*pcontent_buf!='\n' && *pcontent_buf)
|
|
{
|
|
*pcontent_buf++;
|
|
content_len++;
|
|
}
|
|
|
|
content_len_str=(char *)malloc(content_len+1);
|
|
pcontent_buf-=content_len;
|
|
memcpy(content_len_str,pcontent_buf,content_len);
|
|
|
|
if(content_len_str[content_len-1] == '\r') {
|
|
content_len_str[content_len-1]='\0';
|
|
}
|
|
else {
|
|
content_len_str[content_len]='\0';
|
|
}
|
|
|
|
content_len=atoi(content_len_str);
|
|
free(content_len_str);
|
|
|
|
if(content_len > MAX_ENTITY_LENGTH) {
|
|
CloseConnection();
|
|
m_iError = HTTP_ERROR_CONTENT_TOO_BIG;
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if(header_got && has_content_len)
|
|
if(bytes_total>=content_len) break;
|
|
}
|
|
|
|
CloseConnection();
|
|
|
|
response[bytes_total]='\0';
|
|
free(buffer);
|
|
|
|
// check the returned header
|
|
if(!header_got || *(DWORD *)header != 0x50545448) { // 'HTTP'
|
|
m_iError = HTTP_ERROR_MALFORMED_RESPONSE;
|
|
return;
|
|
}
|
|
|
|
// Now fill in the response code
|
|
char response_code_str[4];
|
|
response_code_str[0] = *(header+9);
|
|
response_code_str[1] = *(header+10);
|
|
response_code_str[2] = *(header+11);
|
|
response_code_str[3] = '\0';
|
|
m_Response.response_code = atoi(response_code_str);
|
|
|
|
// Copy over the document entity strings and sizes
|
|
m_Response.header = header;
|
|
m_Response.header_len = header_len;
|
|
m_Response.response = response;
|
|
m_Response.response_len = bytes_total;
|
|
|
|
//printf("Code: %u\n\n%s\n",m_Response.response_code,m_Response.header);
|
|
|
|
// Try and determine the document type
|
|
m_Response.content_type = CONTENT_TYPE_HTML; // default to html
|
|
|
|
char szContentType[256];
|
|
|
|
if(GetHeaderValue("CONTENT-TYPE:",szContentType,256) == true) {
|
|
if(strstr(szContentType,"text/html") != NULL) {
|
|
m_Response.content_type = CONTENT_TYPE_HTML;
|
|
}
|
|
else if(strstr(szContentType,"text/plain") != NULL) {
|
|
m_Response.content_type = CONTENT_TYPE_TEXT;
|
|
} else {
|
|
m_Response.content_type = CONTENT_TYPE_UNKNOWN;
|
|
}
|
|
}
|
|
}
|
|
|
|
//----------------------------------------------------
|