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#include "hash.h"
#include "log.h"
#include "package.h"
#include "curl/curl.h"
#include "stdio.h"
#include "stdlib.h"
#include "string.h"
static size_t write_cb(char *ptr, size_t size, size_t nmemb, void *stream) {
size_t written = fwrite(ptr, size, nmemb, (FILE *)stream);
return written;
}
int pow_download_file(char *path, char *url) {
FILE *pagefile;
CURL *curl = curl_easy_init();
if (!curl) {
pow_log_error("failed to init curl");
return 1;
}
curl_easy_setopt(curl, CURLOPT_URL, url);
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_cb);
curl_easy_setopt(curl, CURLOPT_NOPROGRESS, 1L);
curl_easy_setopt(curl, CURLOPT_USERAGENT, "pow! (codeberg.org/einfach/pow)");
curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L);
pagefile = fopen(path, "wb");
if (!pagefile) {
pow_log_error("failed to open file to download");
curl_easy_cleanup(curl);
return 1;
}
curl_easy_setopt(curl, CURLOPT_WRITEDATA, pagefile);
CURLcode result = curl_easy_perform(curl);
curl_easy_cleanup(curl);
fclose(pagefile);
return result;
}
int pow_download_source(pow_package_source *src, const char *prefix) {
size_t len = strlen(prefix) + strlen(src->out) + 2;
char *full_path = malloc(len);
snprintf(full_path, len, "%s/%s", prefix, src->out);
pow_log_info("downloading source file: %s", src->in);
if (pow_download_file(full_path, src->in)) {
pow_log_error("failed to download sources, aborting");
free(full_path);
return 1;
}
if (pow_check_blake2b_hash(full_path, src->hash)) {
pow_log_error("hash mismatch. something is going wrong with downloading the file "
"or it may be tampered with.");
free(full_path);
return 1;
}
pow_log_info("hashes match, %s", src->hash);
free(full_path);
return 0;
}
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