iframe-proxy | Sunbelt Computer Software

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#include <sys/types.h>

#include <sys/stat.h>

#include <pthread.h>

#include <arpa/inet.h>

#include <sys/socket.h>

#include <netinet/in.h>

#include <errno.h>

#include <cstring>

#include <cstdio>

#include <cstdlib>

#include <unistd.h>

#include <ctype.h>

#include <pthread.h>

using namespace std;

#define ServerString "Server : OldColorGhost's httpd/1.0\r\n"

int ServerSocket;

int port;

sockaddr_in LocalIP;

socklen_t LocalIP_len;

void error(const char *message){

printf("%s:%d\n",message,errno);

exit(0);

}

int getLinefromSocket(int socket,char *buf,int size){

int count=0;

char c='\0';

int res;

while(c!='\n'&&count<size-1){

res=recv(socket,&c,1,0);

if(res>0){

if(c=='\r'){

res=recv(socket,&c,1,MSG_PEEK);

if(res>0&&c=='\n')

recv(socket,&c,1,0);

else

c='\n';

}

buf[count]=c;

count++;

}

else

c='\n';

}

buf[count]='\0';

return count;

}

void getfile(int clinet,FILE *resource){

char buffer[1024];

fgets(buffer,sizeof(buffer),resource);

while(!feof(resource)){

send(clinet,buffer,strlen(buffer),0);

fgets(buffer,sizeof(buffer),resource);

}

void init(){

LocalIP.sin_family=AF_INET;

LocalIP.sin_port=htons(1234);

LocalIP.sin_addr.s_addr=inet_addr("127.0.0.1");

LocalIP_len=sizeof(LocalIP);

ServerSocket=socket(AF_INET,SOCK_STREAM,0);

int on=1;

if(ServerSocket==-1)

error("socket");

if(setsockopt(ServerSocket,SOL_SOCKET,SO_REUSEADDR,&on,sizeof(on))==-1)

error("setsockopt");

if(bind(ServerSocket,(sockaddr *)&LocalIP,LocalIP_len)==-1)

error("bind");

if(listen(ServerSocket,5)==-1)

error("listen");

}

void method501(int Socket){

int msg_len=1024;

char *msg=(char *)malloc(msg_len);

sprintf(msg,"HTTP/1.0 501 Method Not Implemented\r\n");

send(Socket,msg,strlen(msg),0);

sprintf(msg,ServerString);

send(Socket,msg,strlen(msg),0);

sprintf(msg,"Content-Type: text/html\r\n");

send(Socket,msg,strlen(msg),0);

sprintf(msg,"\r\n");

send(Socket,msg,strlen(msg),0);

FILE *fd=fopen("html/501.html","r");

if(fd==NULL)

error("fopen");

getfile(Socket,fd);

fclose(fd);

free(msg);

}

void method404(int Socket){

int msg_len=1024;

char *msg=(char *)malloc(msg_len);

sprintf(msg,"HTTP/1.0 404 Not Found\r\n");

send(Socket,msg,strlen(msg),0);

sprintf(msg,ServerString);

send(Socket,msg,strlen(msg),0);

sprintf(msg,"Content-Type: text/html\r\n");

send(Socket,msg,strlen(msg),0);

sprintf(msg,"\r\n");

send(Socket,msg,strlen(msg),0);

FILE *fd=fopen("html/404.html","r");

if(fd==NULL)

error("fopen");

getfile(Socket,fd);

fclose(fd);

free(msg);

}

void header(int clinet,FILE *resource){

char buffer[1024];

strcpy(buffer,"HTTP/1.1 200 OK\r\n");

send(clinet,buffer,strlen(buffer),0);

strcpy(buffer,ServerString);

send(clinet,buffer,strlen(buffer),0);

strcpy(buffer,"Content-Type: text/html\r\n");

send(clinet,buffer,strlen(buffer),0);

strcpy(buffer,"\r\n");

send(clinet,buffer,strlen(buffer),0);

}

void serve_file(int clinet,const char *path){

FILE *resource=NULL;

char *buf=(char*)malloc(1024);

int numchar=1;

buf[0]='$',buf[1]='\0';

while((numchar>0)&&(strcmp(buf,"\n")))

{

numchar=getLinefromSocket(clinet,buf,1024);

printf("%s",buf);

}

resource=fopen(path,"r");

if(resource==NULL)

error("resource");

header(clinet,resource);

getfile(clinet,resource);

fclose(resource);

}

void *acceptRequest(void *arg){

int Client=(intptr_t)arg;

printf("%d\n",Client);

int buffer_len=1000;

char *buffer=(char *)malloc(buffer_len);

char method[20];

char url[200];

char path[200];

int count;

int isDone=0;

count=getLinefromSocket(Client,buffer,buffer_len);

int index=0,j=0;

while(isspace(buffer[index])==0&&(j<sizeof(method)-1)){

method[j]=buffer[index];

index++;j++;

}

method[j]='\0';j=0;

while(isspace(buffer[index])!=0&&(index<count))

index++;

while(isspace(buffer[index])==0&&(j<sizeof(url)-1)){

url[j]=buffer[index];

j++;index++;

}

free(buffer);

url[j]='\0';j=0;

path[0]='.';path[1]='\0';

printf("%s %s\n",method,url);

if(strcasecmp(method,"GET")==0){

if(strcmp(url,"/\0")==0)

strcat(path,"/index.html");

else

strcat(path,url);

isDone=1;

}

printf("%s %s\n",method,path);

if(isDone==0)

method501(Client);

else{

serve_file(Client,path);

}

close(Client);

return ((void*)0);

}

int main(){

init();

sockaddr_in ClientIP;

socklen_t ClinetIP_len=sizeof(ClientIP);

int ClinetSocket;

pthread_t newclient;

while(1){

ClinetSocket=accept(ServerSocket,(sockaddr *)&ClientIP,&ClinetIP_len);

if(ClinetSocket==-1)

error("accept");

if(pthread_create(&newclient,NULL,acceptRequest,(void *)(intptr_t)ClinetSocket)!=0)

error("threat");

}

ClinetSocket=accept(ServerSocket,(sockaddr *)&ClientIP,&ClinetIP_len);

acceptRequest((void *)(intptr_t)ClinetSocket);

return 0;

}

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