From: Michael Tremer <michael.tremer@ipfire.org>
Date: Mon, 19 Apr 2021 14:49:37 +0000 (+0000)
Subject: repo: Replace variables in URLs
X-Git-Tag: 0.9.28~1285^2~332
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c23520eaf0cb3ca5f7741902b70f266b687e90e0;p=pakfire.git

repo: Replace variables in URLs

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
---

diff --git a/src/libpakfire/repo.c b/src/libpakfire/repo.c
index 67e8d0b6a..7e805ac6a 100644
--- a/src/libpakfire/repo.c
+++ b/src/libpakfire/repo.c
@@ -622,14 +622,58 @@ PAKFIRE_EXPORT const char* pakfire_repo_get_baseurl(PakfireRepo repo) {
 	return repo->appdata->baseurl;
 }
 
+static char* pakfire_repo_url_replace(PakfireRepo repo, const char* url) {
+	if (!url)
+		return NULL;
+
+	const char* arch = pakfire_get_arch(repo->pakfire);
+	const char* name = pakfire_repo_get_name(repo);
+
+	const struct replacement {
+		const char* pattern;
+		const char* replacement;
+	} replacements[] = {
+		{ "%{name}", name },
+		{ "%{arch}", arch },
+		{ NULL, NULL },
+	};
+
+	char* buffer = strdup(url);
+	if (!buffer)
+		return NULL;
+
+	for (const struct replacement* repl = replacements; repl->pattern; repl++) {
+		char* r = pakfire_string_replace(
+			buffer, repl->pattern, repl->replacement);
+		free(buffer);
+
+		// Break on any errors
+		if (!r)
+			return NULL;
+
+		// Free the old buffer and continue working with the new data
+		buffer = r;
+	}
+
+#ifdef ENABLE_DEBUG
+	if (strcmp(url, buffer) != 0) {
+		DEBUG(repo->pakfire, "Repository URL updated:");
+		DEBUG(repo->pakfire, "  From: %s\n", url);
+		DEBUG(repo->pakfire, "  To  : %s\n", buffer);
+	}
+#endif
+
+	return buffer;
+}
+
 PAKFIRE_EXPORT int pakfire_repo_set_baseurl(PakfireRepo repo, const char* baseurl) {
 	if (repo->appdata->baseurl)
 		free(repo->appdata->baseurl);
 
-	if (baseurl)
-		repo->appdata->baseurl = strdup(baseurl);
-	else
-		repo->appdata->baseurl = NULL;
+	// Store URL
+	repo->appdata->baseurl = pakfire_repo_url_replace(repo, baseurl);
+	if (!repo->appdata->baseurl)
+		return 1;
 
 	return 0;
 }
@@ -670,10 +714,10 @@ PAKFIRE_EXPORT int pakfire_repo_set_mirrorlist_url(PakfireRepo repo, const char*
 	if (repo->appdata->mirrorlist_url)
 		free(repo->appdata->mirrorlist_url);
 
-	if (url)
-		repo->appdata->mirrorlist_url = strdup(url);
-	else
-		repo->appdata->mirrorlist_url = NULL;
+	// Store URL
+	repo->appdata->mirrorlist_url = pakfire_repo_url_replace(repo, url);
+	if (!repo->appdata->mirrorlist_url)
+		return 1;
 
 	return 0;
 }