Merge pull request #1922 from H3rnand3zzz/fix/plugins-install-follow-redirect

Allow redirects for  `/plugins install` and add emptiness check for downloaded files

src/tools/http_download.c

@@ -159,6 +159,8 @@ http_file_get(void* userdata)
 
     curl_easy_setopt(curl, CURLOPT_USERAGENT, "profanity");
 
+    curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L);
+
     if (cafile) {
         curl_easy_setopt(curl, CURLOPT_CAINFO, cafile);
     }
@@ -174,6 +176,10 @@ http_file_get(void* userdata)
         err = strdup(curl_easy_strerror(res));
     }
 
+    if (ftell(outfh) == 0) {
+        err = strdup("Output file is empty.");
+    }
+
     curl_easy_cleanup(curl);
     curl_global_cleanup();