ComputerSystemsProject/CleanWeatherAPI at master · zoeabboudi/ComputerSystemsProject · GitHub

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/*
 * adder.c - a minimal CGI program that subtracts two numbers
 */
/* $begin adder */
#include "../csapp.h"
#include <string.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <stdio.h>

int main(int argc, char **argv){

  char *urlBegin, *urlEnd, *s,  *input;
  char arg1[MAXLINE], arg2[MAXLINE], content[MAXLINE], zipcode[MAXLINE];

    int n1=0, n2=0;
    int zip;
    /* Extract the zipCode */

    input = strncat(getenv("QUERY_STRING"), "\0", 5);
    fprintf(stderr, "this is input: %s\n", input);
    sscanf(input, "zipcode=%d", &zip);
    fprintf(stderr, "\nthe zipcode you entered is: %d\n", zip);

    sprintf(zipcode, "%d", zip);
    fprintf(stderr, "this is zipcode: %s \n", zipcode);

    //fprintf(stderr, "\nthis is null %s\n", zipcode[0]);
    fprintf(stderr, "strlen is %d", strlen(zipcode));

    // only ask server for weather is user entered a valid zipcode
    if (strlen(zipcode) ==5){
      fprintf(stderr, "\nzipcode has something  in it!\n");


      char *host, *port;
      rio_t rio;
      char buf[MAXLINE];
      char buf2[MAXLINE];
      int clientfd, n;
      // THIS IS WHERE ECHOclient  COMES IN

      sprintf(buf, "GET /data/2.5/weather?zip=%s,us&units=imperial&APPID=364ebbea13d49a5e8e505870368c78be\n", zipcode);


      host  = "162.243.53.59";
      //"192.241.169.168"
      //http://www.openweathermap.org";
      port = "80";

      fprintf(stderr, "about to do clientfd\n");

      clientfd = Open_clientfd(host, port);
      Rio_readinitb(&rio,clientfd);

      if (clientfd == -1) {
	fprintf(stderr, "ERROR: connection could not be established.");
      }

      char response[MAXLINE];
      Rio_writen(clientfd, buf, MAXLINE);
      Rio_readlineb(&rio, buf2, MAXLINE);   /// buf2 has our output
      Close(clientfd);
      fprintf(stderr, "%s", buf2);

      fprintf(stderr, "made it to the JSON output\n ");
      char *response_split;  // split response on 1st occurence
      response_split = strchr(buf2, '[');
      *response_split = '\0';
      //strcpy(response, response_split +1);

    }


    sprintf(content,"<html><body style='background-color:#AED6F1;'><style>h1{color:#1B4F72}h2{color:#196F3D}</style><center><h1>Your Weather</h1><h2> brought to you by <strong>Mori and Zoe</strong></h2><p><img src='sunshine.jpeg' alt='sunshine' width='200'></p><h1>Enter Your zipcode:</h1><form action='/cgi-bin/htmlVersion?'><input type='text' name='zipcode'><br><input type='submit' value='Submit'></form><h2>the temperature outside:</h2></center></body></html>", zipcode, zipcode);

    /* Generate the HTTP response */
    printf("Connection: close\r\n");
    printf("Content-length: %d\r\n", (int)strlen(content));
    printf("Content-type: text/html\r\n\r\n");
    printf("%s", content);
    fflush(stdout);

    exit(0);
}