2007-05-06 12:59:31 +00:00
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/*
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* rss.c
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2007-06-01 10:42:57 +00:00
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* RSS stuff (prss version)
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2007-06-01 15:49:49 +00:00
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*
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* prss.c and prss.h written by Sisu (Mikko Sysikaski)
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* new rss.c written by hifi (Toni Spets)
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2007-05-06 12:59:31 +00:00
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*/
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#include <stdio.h>
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#include <string.h>
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2007-06-01 10:42:57 +00:00
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#include <time.h>
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#include <assert.h>
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#include "prss.h"
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2007-06-01 11:37:19 +00:00
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#include <curl/curl.h>
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#include <curl/types.h>
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#include <curl/easy.h>
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2007-05-06 12:59:31 +00:00
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2007-06-01 15:49:49 +00:00
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#define MAX_FEEDS 16
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2007-06-01 10:42:57 +00:00
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2007-06-01 11:37:19 +00:00
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struct MemoryStruct {
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char *memory;
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size_t size;
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};
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2007-06-01 15:49:49 +00:00
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typedef struct feed_ {
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char* uri;
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int last_update;
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PRSS* data;
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} feed;
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int num_feeds = 0;
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feed feeds[MAX_FEEDS];
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2007-06-01 11:37:19 +00:00
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size_t
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WriteMemoryCallback(void *ptr, size_t size, size_t nmemb, void *data)
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{
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size_t realsize = size * nmemb;
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struct MemoryStruct *mem = (struct MemoryStruct *)data;
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mem->memory = (char *)realloc(mem->memory, mem->size + realsize + 1);
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if (mem->memory) {
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memcpy(&(mem->memory[mem->size]), ptr, realsize);
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mem->size += realsize;
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mem->memory[mem->size] = 0;
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}
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return realsize;
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}
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2007-06-01 15:49:49 +00:00
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int rss_delay(int *wait, int delay)
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2007-05-06 12:59:31 +00:00
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{
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2007-06-01 10:42:57 +00:00
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time_t now = time(NULL);
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2007-05-06 12:59:31 +00:00
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2007-06-01 11:37:19 +00:00
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// make it minutes
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if(delay < 1) delay = 1;
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2007-06-01 11:46:14 +00:00
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delay *= 60;
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2007-06-01 11:37:19 +00:00
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2007-06-01 15:49:49 +00:00
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if(!*wait) {
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*wait = now + delay;
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2007-06-01 10:42:57 +00:00
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return 1;
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}
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2007-05-06 12:59:31 +00:00
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2007-06-01 15:49:49 +00:00
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if(now >= *wait + delay) {
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*wait = now + delay;
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2007-06-01 10:42:57 +00:00
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return 1;
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2007-05-06 12:59:31 +00:00
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}
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2007-06-01 10:42:57 +00:00
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return 0;
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}
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PRSS*
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get_rss_info(char *uri, int delay)
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{
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2007-06-01 11:37:19 +00:00
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CURL *curl = NULL;
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CURLcode res;
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2007-06-01 15:49:49 +00:00
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// curl temps
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2007-06-01 11:37:19 +00:00
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struct MemoryStruct chunk;
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chunk.memory = NULL;
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chunk.size = 0;
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2007-06-01 15:49:49 +00:00
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// pointers to struct
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feed *curfeed = NULL;
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PRSS *curdata = NULL;
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int *last_update = 0;
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int i;
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// first seek for the uri in list
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if(num_feeds > 0) {
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for(i = 0; i < num_feeds; i++) {
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if(feeds[i].uri != NULL)
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if(!strcmp(feeds[i].uri, uri)) {
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curfeed = &feeds[i];
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break;
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}
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}
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}
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2007-06-01 10:42:57 +00:00
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2007-06-01 15:49:49 +00:00
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if(!curfeed) { // new feed
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if(num_feeds == MAX_FEEDS-1) return NULL;
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curfeed = &feeds[num_feeds];
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curfeed->uri = (char *)malloc(sizeof(char) * strlen(uri)+1);
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strncpy(curfeed->uri, uri, strlen(uri)+1);
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num_feeds++;
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}
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last_update = &curfeed->last_update;
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curdata = curfeed->data;
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if(!rss_delay(last_update, delay))
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return curdata; // wait for delay to pass
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if(curdata != NULL)
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prss_free(curdata); // clean up old data
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2007-05-06 12:59:31 +00:00
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2007-06-01 11:37:19 +00:00
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curl = curl_easy_init();
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if(curl) {
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curl_easy_setopt(curl, CURLOPT_URL, uri);
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curl_easy_setopt(curl, CURLOPT_NOPROGRESS, 1);
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curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback);
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curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&chunk);
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curl_easy_setopt(curl, CURLOPT_USERAGENT, "conky-rss/1.0");
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res = curl_easy_perform(curl);
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if(chunk.size) {
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2007-06-01 15:49:49 +00:00
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curdata = prss_parse_data(chunk.memory);
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2007-06-01 11:37:19 +00:00
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free(chunk.memory);
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}
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2007-06-01 15:49:49 +00:00
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curfeed->data = curdata;
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2007-06-01 11:37:19 +00:00
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curl_easy_cleanup(curl);
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}
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2007-05-06 12:59:31 +00:00
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2007-06-01 15:49:49 +00:00
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return curdata;
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2007-05-06 12:59:31 +00:00
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}
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