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Add preliminary code for database (this really needs to be cleaned)

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Mina Brown
2024-11-22 19:20:44 -05:00
parent cd90d62b2c
commit ae2ec6f662
8 changed files with 241 additions and 98 deletions
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51
feed_info.c
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@ -1,3 +1,6 @@
#define _GNU_SOURCE
#define _XOPEN_SOURCE
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
@ -7,50 +10,42 @@
#include <concord/discord.h>
#include <concord/log.h>
#include <postgresql/libpq-fe.h>
#include "config.h"
#include "feed_info.h"
void feed_info_free(feed_info *feed) {
free(feed->title);
free(feed->url);
free(feed->last_pubDate);
free(feed);
}
const char *feed_info_strerror(feed_info_err error) {
static_assert(FEED_INFO_ERRORCOUNT == 3, "Not all feed info errors implemented");
// returns a string about the result of a feed_info function
const char *zblock_feed_info_strerror(zblock_feed_info_err error) {
static_assert(ZBLOCK_FEED_INFO_ERRORCOUNT == 3, "Not all feed info errors implemented");
switch (error) {
case FEED_INFO_OK: {
case ZBLOCK_FEED_INFO_OK: {
return "OK";
}
case FEED_INFO_FILEERROR: {
return strerror(errno);
}
case FEED_INFO_NULL: {
case ZBLOCK_FEED_INFO_NULL: {
return "No feed info was provided";
}
case ZBLOCK_FEED_INFO_POSTGRES: {
return "An error was encountered with the feed database";
}
default: {
return "Unspecified error";
}
}
}
/*
* Reads feed info for given information from file and puts it in the provided struct
*/
feed_info_err feed_info_save_file(feed_info *feed) {
if (!feed) return FEED_INFO_NULL;
// format string for for the time format of pubDate
#define PUBDATE_FMT "%a, %d %b %Y %T %z"
time_t pubDate_to_time_t(char *s) {
struct tm tm;
char *res = strptime(s, PUBDATE_FMT, &tm);
if (!res || !*res) return 0; // invalid time
char file_path[PATH_MAX];
// maybe check if we ran out of characters for path?
snprintf(file_path, sizeof(file_path), "%s/%lu/%lu/%x", zblock_config.database_path, feed->guild_id, feed->channel_id, feed->feed_id);
FILE *fp = fopen(file_path, "w");
if (!fp) return FEED_INFO_FILEERROR;
fprintf(fp, "title=%s\nurl=%s\nlast_pubDate=%s\n", feed->title, feed->url, feed->last_pubDate);
fclose(fp);
return mktime(&tm);
}
feed_info_err feed_info_load_file(u64snowflake guild_id, u64snowflake channel_id, unsigned feed_id, feed_info *feed) {
// Insert new feed into the database
zblock_feed_info_err zblock_feed_info_insert(PGconn *conn, zblock_feed_info *feed) {
assert(0 && "not implemented yet");
}