#include <stdio.h> #include <stdlib.h> #include <string.h> #include "winsock2.h" #pragma comment(lib,"WS2_32.lib") int socket_readline(SOCKET socket,char *head) { char c = ‘\0‘; int r = 0,i = 0; while(recv(socket,&c,1,0)>0) { if(r == 1) { if(c == ‘\n‘) { break; } else { r = 0; } } else if(c == ‘\r‘) { r = 1; } else head[i++] = c; } head[i] = ‘\0‘; if(strcmp(head,"\r\n") == 0) return -1; else return i; } int parse_url(char *url,char *host,int *port,char *path,char *data) { char *p = strstr(url,"://"); if(!p) return -1; p += 3; int protocal = (int)(p-url); protocal = protocal==5?protocal=443:protocal=80; char *hostPort = p; char *hostPortEnd = strstr(p,"http://www.mamicode.com/"); if(!hostPortEnd) { if(strlen(p) < 1) return -1; else hostPortEnd = p+strlen(p); } char *hostEnd = strstr(hostPort,":"); if(!hostEnd){ *port = protocal; hostEnd = hostPortEnd; }else{ *port = (int)atoi(hostEnd+1); } strncpy(host,hostPort,hostEnd-hostPort); char *pathStart = hostPortEnd; if(!pathStart) return -1; char *pathEnd = strstr(pathStart,"?"); if(!pathEnd) strncpy(path,pathStart,strlen(pathStart)); else strncpy(path,pathStart,pathEnd-pathStart); if(pathEnd) strncpy(data,pathEnd+1,strlen(pathEnd)-1); return 1; } const char* strstri(const char* str, const char* subStr) { int len = strlen(subStr); if(len == 0) { return NULL; } while(*str) { if(strncmp(str, subStr, len) == 0) { return str; } ++str; } return NULL; } char *ajax_get(char *url) { int port = 0; char host[256],path[256],data[256]; memset(host,0,sizeof(host)); memset(path,0,sizeof(path)); memset(data,0,sizeof(data)); if(!parse_url(url,host,&port,path,data)) return NULL; SOCKET s = socket(AF_INET,SOCK_STREAM,IPPROTO_TCP); if(s == INVALID_SOCKET) { return NULL; } sockaddr_in servAddr; servAddr.sin_family = AF_INET; servAddr.sin_port = htons(port); servAddr.sin_addr.S_un.S_addr = inet_addr(host); connect(s,(sockaddr*)&servAddr,sizeof(servAddr)); char *getFormat = "GET %s?%s HTTP/1.1\r\n" "Host: %s\r\n" "Connection: Keep-Alive\r\n" "\r\n"; int sendDataSize = strlen(getFormat)+strlen(path)+strlen(data)+strlen(host)+200; char *sendData = (char *)malloc(sendDataSize); sprintf(sendData,getFormat,path,data,host); send(s,sendData,strlen(sendData),0); free(sendData); char *http_head_recv = new char[3000]; int Content_Length = 0; for(int flag=1;flag>0;) { memset(http_head_recv,0,sizeof(http_head_recv)); flag = socket_readline(s,http_head_recv); char key[125],value[2000]; memset(key,0,sizeof(key)); memset(value,0,sizeof(value)); sscanf(http_head_recv,"%s%s",key,value); key[strlen(key)-1] = ‘\0‘; if(strstri(key,"Content-Length") != NULL){ Content_Length = atoi(value); } } free(http_head_recv); char *msg = NULL; if(Content_Length>0) { msg = new char[Content_Length+1]; memset(msg,0,Content_Length+1); recv(s,msg,Content_Length,0); msg[Content_Length] = ‘\0‘; } closesocket(s); return msg; } char *ajax_post(char *url) { int port = 0; char host[256],path[256],data[256]; memset(host,0,sizeof(host)); memset(path,0,sizeof(path)); memset(data,0,sizeof(data)); if(!parse_url(url,host,&port,path,data)) return NULL; SOCKET s = socket(AF_INET,SOCK_STREAM,IPPROTO_TCP); if(s == INVALID_SOCKET) { return NULL; } sockaddr_in servAddr; servAddr.sin_family = AF_INET; servAddr.sin_port = htons(port); servAddr.sin_addr.S_un.S_addr = inet_addr(host); connect(s,(sockaddr*)&servAddr,sizeof(servAddr)); char *getFormat = "POST %s HTTP/1.1\r\n" "Host: %s\r\n" "Connection: Keep-Alive\r\n" "\r\n%s"; int sendDataSize = strlen(getFormat)+strlen(path)+strlen(data)+strlen(host)+200; char *sendData = (char *)malloc(sendDataSize); sprintf(sendData,getFormat,path,host,data); send(s,sendData,strlen(sendData),0); free(sendData); char *http_head_recv = new char[3000]; int Content_Length = 0; for(int flag=1;flag>0;) { memset(http_head_recv,0,sizeof(http_head_recv)); flag = socket_readline(s,http_head_recv); char key[125],value[2000]; memset(key,0,sizeof(key)); memset(value,0,sizeof(value)); sscanf(http_head_recv,"%s%s",key,value); key[strlen(key)-1] = ‘\0‘; if(strstri(key,"Content-Length") != NULL){ Content_Length = atoi(value); } } free(http_head_recv); char *msg = NULL; if(Content_Length>0) { msg = new char[Content_Length+1]; memset(msg,0,Content_Length+1); recv(s,msg,Content_Length,0); msg[Content_Length] = ‘\0‘; } closesocket(s); return msg; } int main(int argc, char* argv[]) { char *myajax_test = "http://10.10.22.102/myajax/test.php?user=admin"; WSADATA wsaData; WORD sockVersion = MAKEWORD(2,0); WSAStartup(sockVersion, &wsaData); char *text = ajax_post(myajax_test); if(text) { printf("%s\n",text); } WSACleanup(); return 0; }
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