138 lines
2.8 KiB
C
138 lines
2.8 KiB
C
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <fcntl.h>
|
|
#include <errno.h>
|
|
#include "env.h"
|
|
#include "error.h"
|
|
#include "cconf.h"
|
|
#include "dlhist.h"
|
|
#include "proc-cache.h"
|
|
#include "filter.h"
|
|
#include "http.h"
|
|
#include "rss.h"
|
|
#include "version.h"
|
|
|
|
#define PROC_CACHE_PURGE_INTERVAL (60*60*6) /* 6 hours (in seconds) */
|
|
#define DLHIST_PURGE_INTERVAL (60*60*24) /* 1 day */
|
|
|
|
static int write_http_file(struct http_file *file, const char *dest) {
|
|
|
|
char path[4096];
|
|
snprintf(path, sizeof(path), "%s/%s", dest, file->filename);
|
|
return buffer_write(&file->data, path);
|
|
}
|
|
|
|
static void process_items(rss_t rss, struct target *t) {
|
|
|
|
int i;
|
|
struct rss_item item;
|
|
|
|
while(rss_walk_next(rss, &item)) {
|
|
|
|
struct http_file *file = NULL;
|
|
|
|
if (proc_cache_lookup(item.link))
|
|
continue;
|
|
|
|
for(i=0; i < t->nr; i++) {
|
|
struct filter *filter = &t->filter[i];
|
|
|
|
if (dlhist_lookup(item.title, filter->dest) ||
|
|
!filter_match(filter->pattern, item.title))
|
|
continue;
|
|
|
|
/* fetch the file if we haven't already. */
|
|
if (file == NULL) {
|
|
file = http_fetch_file(item.link);
|
|
if (file == NULL) {
|
|
error("download failed");
|
|
continue;
|
|
}
|
|
}
|
|
|
|
/* At this point, mark the item as downloaded.
|
|
Even if we encounter an error while saving to disk. */
|
|
dlhist_mark(item.title, filter->dest);
|
|
|
|
if (write_http_file(file, filter->dest) < 0)
|
|
continue;
|
|
|
|
printf("Downloaded: %s (%s) to %s\n",
|
|
item.title, item.link, filter->dest);
|
|
}
|
|
|
|
proc_cache_update(item.link);
|
|
|
|
http_free_file(file);
|
|
}
|
|
}
|
|
|
|
static void process(struct cconf *config) {
|
|
|
|
int i;
|
|
struct buffer *data;
|
|
|
|
proc_cache_purge(PROC_CACHE_PURGE_INTERVAL);
|
|
dlhist_purge(DLHIST_PURGE_INTERVAL);
|
|
|
|
for(i=0; i < config->nr; i++) {
|
|
struct target *t = config->target + i;
|
|
rss_t rss;
|
|
|
|
data = http_fetch_page(t->src);
|
|
if (!data)
|
|
continue;
|
|
|
|
rss = rss_parse(data->block, data->len);
|
|
if (!rss) {
|
|
error("failed to parse rss: %s", t->src);
|
|
continue;
|
|
}
|
|
|
|
process_items(rss, t);
|
|
rss_free(rss);
|
|
http_free(data);
|
|
}
|
|
}
|
|
|
|
int main(int argc, char *argv[]) {
|
|
|
|
struct cconf *config;
|
|
char configfile[4096];
|
|
|
|
if (argc > 1) {
|
|
if (!strcmp(argv[1], "-h") || !strcmp(argv[1], "-help")) {
|
|
printf("%s [--help|-h|--version|-v]\n", argv[0]);
|
|
} else if (!strcmp(argv[1], "-v")
|
|
|| !strcmp(argv[1], "--version")) {
|
|
printf("dlight version %s\n",
|
|
dlight_version_str);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
snprintf(configfile, sizeof(configfile), "%s/%s",
|
|
env_get_dir(), "config");
|
|
|
|
config = cconf_read(configfile);
|
|
if (!config) {
|
|
perror(configfile);
|
|
return 1;
|
|
}
|
|
|
|
/* open process cache and download history. */
|
|
if (proc_cache_open() < 0 || dlhist_open() < 0)
|
|
return 1;
|
|
|
|
process(config);
|
|
|
|
proc_cache_close();
|
|
dlhist_close();
|
|
cconf_free(config);
|
|
|
|
return 0;
|
|
}
|