gistfile1.c

/* 
 * File:   main.c
 * Author: jgarcia
 *
 * Created on February 3, 2015, 7:04 AM
 */

#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <curl/curl.h>
#include <gtk-3.0/gtk/gtk.h>


CURL *curl;
GtkWidget *window;

//char *url = "https://support.us.playstation.com/";

char *url = "file://status.html";

struct MemoryStruct {
    char *memory;       // Used to store the result from the 
    size_t size;
};
 
 
static size_t write_memory_callback(void *contents, size_t size, size_t nmemb, void *userp) {
    size_t realsize = size * nmemb;
    struct MemoryStruct *mem = (struct MemoryStruct *)userp;

    mem->memory = realloc(mem->memory, mem->size + realsize + 1);
    if(mem->memory == NULL) {
        /* out of memory! */ 
        printf("not enough memory (realloc returned NULL)\n");
        return 0;
    }

    memcpy(&(mem->memory[mem->size]), contents, realsize);
    mem->size += realsize;
    mem->memory[mem->size] = 0;

    return realsize;
}
 


// Inspired by: http://curl.haxx.se/libcurl/c/getinmemory.html
int get_psn_status() {
    int psn_status = 0;
    
    CURL *curl_handle;
    CURLcode res;

    struct MemoryStruct chunk;

    chunk.memory = malloc(1);  /* will be grown as needed by the realloc above */ 
    chunk.size = 0;    /* no data at this point */ 

    curl_global_init(CURL_GLOBAL_ALL);

    curl_handle = curl_easy_init();

    curl_easy_setopt(curl_handle, CURLOPT_URL, url);
    curl_easy_setopt(curl_handle, CURLOPT_WRITEFUNCTION, write_memory_callback);
    curl_easy_setopt(curl_handle, CURLOPT_WRITEDATA, (void *)&chunk);

    /* some servers don't like requests that are made without a user-agent
       field, so we provide one */ 
    curl_easy_setopt(curl_handle, CURLOPT_USERAGENT, "libcurl-agent/1.0");

    res = curl_easy_perform(curl_handle);

    /* check for errors */ 
    if (res != CURLE_OK) {
        fprintf(stderr, "curl_easy_perform() failed: %s\n", curl_easy_strerror(res));
        psn_status = -1;
    }
    else {
    
        char *output = (char *)chunk.memory;
        
        printf("%lu bytes retrieved\n", (long)chunk.size);

        char *pointer = strstr(output, "PSN Status: ONLINE");
        
        if (pointer) {
            //printf("FOUND [%s]\n", pointer);
            psn_status = 1;   
        }

    }
 
    /* cleanup curl stuff */ 
    curl_easy_cleanup(curl_handle);

    if(chunk.memory) {
        free(chunk.memory);
    }

    curl_global_cleanup();

    return psn_status;
}
    
    
void show_window(int argc, char *argv[]) {
    
    gtk_init(&argc, &argv);

    window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
    
    gtk_window_set_default_size(GTK_WINDOW(window), 230, 150);

    gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
    gtk_window_resize(GTK_WINDOW(window), 230, 150);
    
    gtk_window_set_resizable(GTK_WINDOW(window), FALSE);
    gtk_window_set_title(GTK_WINDOW(window), "Fetching...");

    gtk_container_set_border_width(GTK_CONTAINER(window), 2);


    g_signal_connect_swapped(
        G_OBJECT(window), 
        "destroy", 
        G_CALLBACK(gtk_main_quit), 
        G_OBJECT(window)
    );

    gtk_widget_show_all(window);
    //gtk_window_fullscreen(GTK_WINDOW(window));

    gtk_main();
}

void update_window(int psn_status) {
    GtkWidget *image;

    GList *children, *iter;

    children = gtk_container_get_children(GTK_CONTAINER(window));

    for(iter = children; iter != NULL; iter = g_list_next(iter)) {
        gtk_widget_destroy(GTK_WIDGET(iter->data));
    }

    g_list_free(children);    
      
    gtk_container_add(GTK_CONTAINER(window), image);

    image = gtk_image_new_from_file((psn_status == 1) ? "thumbs_up.gif" : "thumbs_down.gif");
    gtk_window_set_title(GTK_WINDOW(window), (psn_status == 1) ? "PSN is ONLINE" : "PSN is OFFLINE");
}

    
void show_window2( int argc, char *argv[]) {

//    GtkWidget *window;

    gtk_init(&argc, &argv);

    window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
    gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
    gtk_window_resize(GTK_WINDOW(window), 230, 150);
    
    //gtk_window_set_title(GTK_WINDOW(window), "Red Rock");
    //gtk_window_set_resizable(GTK_WINDOW(window), FALSE);

    gtk_container_set_border_width(GTK_CONTAINER(window), 2);

    //image = gtk_image_new_from_file("thumbs_down.gif");
   //gtk_container_add(GTK_CONTAINER(window), image);


    g_signal_connect_swapped(G_OBJECT(window), "destroy",
          G_CALLBACK(gtk_main_quit), G_OBJECT(window));

    gtk_widget_show_all(window);
    //gtk_window_fullscreen(GTK_WINDOW(window));

    gtk_main();
}


int main(int argc, char *argv[]) {
    show_window2(argc, argv);
    
    pthread_t threads[1];
    int rc = pthread_create(&threads[i], NULL, show_window2, argc, argv);
    
    if (rc != 0) {
        
    }
     
    
    update_window(1);

//    while(1) {
//        printf("Getting status...\n");
//        gtk_window_set_title(GTK_WINDOW(window), "Fetching...");
//        int status = get_psn_status();
//
//        if (status == 1) {
//            printf("PSN is up, bitch\n");
//        }
//        else if (status == 0) {
//            printf("PSN is down\n");
//        }
//        else if (status == -1) {
//            printf("Could not connect to PSN\n");
//        }
//        
//        sleep(60);
//    }
    
    
    exit(0);
}