Change default download location

`/url save $someurl` will now download to
`~/.local/share/profanity/downloads/from_jid/date/filename` instead of
`~/.local/share/profanity/downloads`.

Like this the downloaded files should be better ordered.

This will only happen for MUC and 1:1 chat windows.
Private windows might have only a nick or jid. Lets not distinguish
between those two ways. And since the nick option is unreliable to be
the same person lets just put them in the general downloads folder.
As is done with downloads from all other windows as well.

I also had the idea to make this configurable but this suits my needs
and time limits right now.

src/command/cmd_defs.c

@@ -2572,7 +2572,7 @@ static const struct cmd_t command_defs[] = {
               "Open or save URLs. This works with OMEMO encrypted files as well.")
       CMD_ARGS(
               { "open", "Open URL with predefined executable." },
-              { "save", "Save URL to optional path, default path is current directory." })
+              { "save", "Save URL to optional path. The location is displayed after successful download." })
       CMD_EXAMPLES(
               "/url open https://profanity-im.github.io",
               "/url save https://profanity-im.github.io/guide/latest/userguide.html /home/user/Download/")

src/command/cmd_funcs.c

@@ -9391,10 +9391,26 @@ cmd_slashguard(ProfWin* window, const char* const command, gchar** args)
 }
 
 gchar*
-_prepare_filename(gchar* url, gchar* path)
+_prepare_filename(ProfWin* window, gchar* url, gchar* path)
 {
+    char* jid = NULL;
+
+    // lets skip private windows and put those files in general download folder
+    switch (window->type) {
+    case WIN_CHAT:
+        ProfChatWin* chatwin = (ProfChatWin*)window;
+        jid = chatwin->barejid;
+        break;
+    case WIN_MUC:
+        ProfMucWin* mucwin = (ProfMucWin*)window;
+        jid = mucwin->roomjid;
+        break;
+    default:
+        break;
+    }
+
     // Ensure that the downloads directory exists for saving cleartexts.
-    auto_gchar gchar* downloads_dir = path ? get_expanded_path(path) : files_get_data_path(DIR_DOWNLOADS);
+    auto_gchar gchar* downloads_dir = path ? get_expanded_path(path) : files_get_download_path(jid);
     if (g_mkdir_with_parents(downloads_dir, S_IRWXU) != 0) {
         cons_show_error("Failed to create download directory "
                         "at '%s' with error '%s'",
@@ -9411,7 +9427,7 @@ _prepare_filename(gchar* url, gchar* path)
 void
 _url_aesgcm_method(ProfWin* window, const char* cmd_template, gchar* url, gchar* path)
 {
-    auto_gchar gchar* filename = _prepare_filename(url, path);
+    auto_gchar gchar* filename = _prepare_filename(window, url, path);
     if (!filename)
         return;
     auto_char char* id = get_random_string(4);
@@ -9434,7 +9450,7 @@ _url_aesgcm_method(ProfWin* window, const char* cmd_template, gchar* url, gchar*
 static gboolean
 _download_install_plugin(ProfWin* window, gchar* url, gchar* path)
 {
-    auto_gchar gchar* filename = _prepare_filename(url, path);
+    auto_gchar gchar* filename = _prepare_filename(window, url, path);
     if (!filename)
         return FALSE;
     HTTPDownload* download = malloc(sizeof(HTTPDownload));
@@ -9452,7 +9468,7 @@ _download_install_plugin(ProfWin* window, gchar* url, gchar* path)
 void
 _url_http_method(ProfWin* window, const char* cmd_template, gchar* url, gchar* path)
 {
-    auto_gchar gchar* filename = _prepare_filename(url, path);
+    auto_gchar gchar* filename = _prepare_filename(window, url, path);
     if (!filename)
         return;
     auto_char char* id = get_random_string(4);
@@ -9556,7 +9572,7 @@ cmd_url_save(ProfWin* window, const char* const command, gchar** args)
         _url_aesgcm_method(window, cmd_template, url, path);
 #endif
     } else if (cmd_template != NULL) {
-        auto_gchar gchar* filename = _prepare_filename(url, NULL);
+        auto_gchar gchar* filename = _prepare_filename(window, url, NULL);
         if (!filename)
             return TRUE;
         _url_external_method(cmd_template, url, filename);

src/config/files.c

@@ -164,6 +164,22 @@ files_get_data_path(const char* const location)
     return g_strdup_printf("%s/profanity/%s", xdg_data, location);
 }
 
+gchar*
+files_get_download_path(const char* const jid)
+{
+    auto_gchar gchar* xdg_data = _files_get_xdg_data_home();
+
+    if (jid) {
+        auto_char char* account_dir = str_replace(jid, "@", "_at_");
+        GDateTime* now = g_date_time_new_now_local();
+        auto_gchar gchar* date = g_date_time_format(now, "%Y_%m_%d");
+        g_date_time_unref(now);
+        return g_strdup_printf("%s/profanity/%s/%s/%s", xdg_data, DIR_DOWNLOADS, account_dir, date);
+    } else {
+        return g_strdup_printf("%s/profanity/%s", xdg_data, DIR_DOWNLOADS);
+    }
+}
+
 gchar*
 files_get_account_data_path(const char* const specific_dir, const char* const jid)
 {

src/config/files.h

@@ -66,6 +66,7 @@ void files_create_directories(void);
 
 gchar* files_get_config_path(const char* const config_base);
 gchar* files_get_data_path(const char* const location);
+gchar* files_get_download_path(const char* const jid);
 gchar* files_get_account_data_path(const char* const specific_dir, const char* const jid);
 
 gchar* files_get_log_file(const char* const log_file);