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team5_client.cc
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team5_client.cc
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#include "team5_client.h"
void send_http_request_message(int sockfd, char* URL)
{
char host[256];
char dir[512];
int x=0;
while (URL[x]!='/')
{
host[x] = URL[x];
x++;
}
host[x] = '\0';
int y=0;
for (y=0; y<strlen(URL); y++)
{
dir[y] = URL[y+x];
}
dir[y]='\0';
cout<<host<<endl;
cout<<dir<<endl;
//buffer_size = strlen(URL) + 1;
char buffer[1024];
memset(buffer, 0, 1024);
strcpy(buffer, "GET ");
strcat(buffer, dir);
strcat(buffer, " HTTP/1.0\r\n");
strcat(buffer, "Host: ");
strcat(buffer,host);
strcat(buffer,"\r\nConnection: close");
strcat(buffer,"\r\n\r\n");
cout<<buffer<<endl;
int bytes_sent = send(sockfd, buffer, strlen(buffer)+1, 0);
}
void got_data(int descriptor)
{
char buffer[BUFF_SIZE];
memset(buffer, 0, BUFF_SIZE);
int nbytes = recv(descriptor, buffer, BUFF_SIZE, 0);
cout<<nbytes<<endl;
std::string str_buffer(buffer);
std::remove(str_buffer.begin(),str_buffer.end(),'\r');
std::string str;
std::stringstream stream(str_buffer);
getline(stream,str);
if (str.substr(9,3) == "200")
{
cout<<"got the web page!"<<endl;
str.clear();
std::map<std::string,std::string> response_map;
std::string::size_type index;
while(getline(stream, str))
{
if (str.length()==0)
break;
index = str.find(':', 0);
response_map.insert(std::pair<std::string,std::string>(str.substr(0,index),str.substr(index+2)));
str.clear();
}
str.clear();
//std::map<std::string,std::string>::iterator i = response_map.begin();
//for (i=response_map.begin(); i!=response_map.end(); i++)
// cout<<i->first<<" "<<i->second<<endl;
fstream(myfile);
myfile.open("output_page",ios::out);
while(getline(stream, str))
{
//cout<<str<<endl;
myfile<<str;
str.clear();
}
myfile.close();
}
else if (str.substr(9,3) == "301")
cout<<"moved permanently"<<endl;
else if (str.substr(9,3) == "302")
cout<<"found"<<endl;
else if (str.substr(9,3) == "400")
cout<<"bad request"<<endl;
else if (str.substr(9,3) == "401")
cout<<"unauthorized"<<endl;
else if (str.substr(9,3) == "403")
cout<<"forbidden"<<endl;
else if (str.substr(9,3) == "404")
cout<<"not found"<<endl;
else if (str.substr(9,3) == "500")
cout<<"internal server error"<<endl;
else if (str.substr(9,3) == "501")
cout<<"not implemented"<<endl;
else if (str.substr(9,3) == "502")
cout<<"bad gateway"<<endl;
else if (str.substr(9,3) == "503")
cout<<"service unavailable"<<endl;
}
int main(int argc, char** argv)
{
if (argc!=4)
{
cout<<"Please enter 3 arguments"<<endl;
cout<<"quitting ..."<<endl;
return 0;
}
char temp_URL[512];
char URL[512];
char server_ip[50];
char proxy_server_port_string[50];
unsigned short int proxy_server_port;
strcpy(server_ip,argv[1]);
strcpy(proxy_server_port_string,argv[2]);
strcpy(temp_URL,argv[3]);
proxy_server_port = atoi(proxy_server_port_string);
if (temp_URL[0] == 'h' && temp_URL[1] == 't' && temp_URL[2] == 't' && temp_URL[3] == 'p' && temp_URL[4] == ':' && temp_URL[5] == '/' && temp_URL[6] == '/')
{
int i;
for (i=0; i<strlen(temp_URL)-7; i++)
{
URL[i] = temp_URL[i+7];
}
URL[i]='\0';
}
else
{
int i;
for (i=0; i<strlen(temp_URL); i++)
{
URL[i] = temp_URL[i];
}
URL[i]='\0';
}
int sockfd;
if ((sockfd = socket(AF_INET,SOCK_STREAM,0))<0)
{
perror("socket error");
return 0;
}
struct sockaddr_in proxy_server_addr;
bzero(&proxy_server_addr,sizeof(proxy_server_addr));
proxy_server_addr.sin_family = AF_INET;
proxy_server_addr.sin_port = htons(proxy_server_port);
inet_pton(AF_INET,server_ip,&(proxy_server_addr.sin_addr));
if ((connect(sockfd,(struct sockaddr*) &proxy_server_addr, sizeof(proxy_server_addr)))<0)
{
perror("connect error");
return 0;
}
send_http_request_message(sockfd, URL);
got_data(sockfd);
close(sockfd);
return 0;
}