gpg logic improvements

src/operations/utility/key.vala

@@ -0,0 +1,17 @@
+public int key_main (string[] args) {
+    if(get_bool("add")){
+        foreach(string arg in args){
+        add_gpg_key(arg);
+        }
+    }
+    return 0;
+}
+void key_init () {
+    operation op = new operation ();
+    op.help = new helpmsg ();
+    op.callback.connect (key_main);
+    op.names = {_ ("key"), "key"};
+    op.help.name = _ ("key");
+    op.help.description = _ ("Gpg key operations.");
+    add_operation (op);
+}

src/util/file.vala

@@ -215,6 +215,12 @@ public void copy_file (string src, string desc) {
     File file2 = File.new_for_path (desc);
     create_dir (sdirname (desc));
     int64 sync_bytes = 0;
+    if("://" in src){
+        if(!fetch(src, desc)){
+            error_add (_ ("Failed to fetch file: %s => %s").printf (src, desc));
+        }
+        return;
+    }
     if (isfile (desc)) {
         remove_file (desc);
     }

src/util/gpg.vala

@@ -28,7 +28,30 @@ public bool verify_file (string path) {
     if (!isfile (path)) {
         return false;
     }
-    return 0 == run ("sh -c \"gpg --verify %s'\" 2>/dev/null".printf (path + ".gpg'"));
+    string gpgdir = get_storage()+"/gpg/";
+    foreach(string file in listdir(gpgdir)) {
+        if(!endswith(file,".gpg")){
+            continue;
+        }
+        string[] args = {"gpg","--homedir", gpgdir, "--trust-model", "always", "--no-default-keyring", "--keyring", gpgdir+"%s".printf(file),  "--quiet" ,"--verify", path+".gpg"};
+        int status = run_args (args);
+        if(status == 0){
+            return true;
+        }
+
+    }
+    return false;
+}
+
+public void add_gpg_key(string path){
+    if(endswith(path,".asc")){
+        string target = get_storage()+"/gpg/"+sbasename(path);
+        copy_file(path, target);
+        run_args({"gpg", "--dearmor", target});
+        move_file(target+".gpg",get_storage()+"/gpg/"+calculate_md5sum(target+".gpg")+".gpg");
+        remove_file(target);
+    }
+
 }
 
 //DOC: `void sign_elf (string path):`

src/ymp.vala

@@ -228,6 +228,7 @@ private void directories_init () {
     create_dir (get_storage () + "/metadata/");
     create_dir (get_storage () + "/files/");
     create_dir (get_storage () + "/links/");
+    create_dir (get_storage () + "/gpg/");
     create_dir (get_storage () + "/sources.list.d/");
     create_dir (get_storage () + "/quarantine/");
     if (!isexists (get_storage () + "/sources.list")) {
@@ -239,6 +240,7 @@ private void directories_init () {
             Posix.chown (path, 0, 0);
         }
     }
+    GLib.FileUtils.chmod (get_storage () + "/gpg/", 0700);
 }
 
 private bool ymp_activated = false;