[PATCH v2 2/4] vdagent: move file xfer initialization to a function

[Victor Toso <victortoso@xxxxxxxxxx>]

From: Victor Toso <me@xxxxxxxxxxxxxx>

This patch creates two functions:
- xfer_get_download_directory()
- vdagent_init_file_xfer()

The logic should be similar as it was before this patch, taking in
consideration the global variables fx_open_dir and fx_dir which are
set from command line.

Signed-off-by: Victor Toso <victortoso@xxxxxxxxxx>
---
 src/vdagent/vdagent.c | 73 +++++++++++++++++++++++++++++++++++++--------------
 1 file changed, 53 insertions(+), 20 deletions(-)

diff --git a/src/vdagent/vdagent.c b/src/vdagent/vdagent.c
index 9900303..d1e67a2 100644
--- a/src/vdagent/vdagent.c
+++ b/src/vdagent/vdagent.c
@@ -25,6 +25,7 @@
 
 #include <stdio.h>
 #include <stdlib.h>
+#include <stdbool.h>
 #include <string.h>
 #include <syslog.h>
 #include <unistd.h>
@@ -55,6 +56,56 @@ static struct udscs_connection *client = NULL;
 static int quit = 0;
 static int version_mismatch = 0;
 
+/**
+ * xfer_get_download_directory
+ *
+ * Return path were file-transfer will save the files. Should be freed with
+ * g_free().
+ **/
+static const gchar *xfer_get_download_directory(bool *open_dir_on_save)
+{
+    if (open_dir_on_save != NULL)
+        *open_dir_on_save = fx_open_dir != -1 || !vdagent_x11_has_icons_on_desktop(x11);
+
+    if (fx_dir != NULL)
+        return fx_dir;
+
+    if (vdagent_x11_has_icons_on_desktop(x11))
+        return g_get_user_special_dir(G_USER_DIRECTORY_DESKTOP);
+
+    return g_get_user_special_dir(G_USER_DIRECTORY_DOWNLOAD);
+}
+
+/**
+ * vdagent_init_file_xfer
+ *
+ * Initialize handler for file xfer and returns true if vdagent_file_xfers is
+ * not NULL.
+ **/
+static bool vdagent_init_file_xfer(void)
+{
+    bool xfer_open_dir;
+    const gchar *xfer_dir;
+
+    if (vdagent_file_xfers != NULL) {
+        syslog(LOG_WARNING, "File-xfer already initialized");
+        return true;
+    }
+
+    xfer_dir = xfer_get_download_directory(&xfer_open_dir);
+    if (xfer_dir == NULL) {
+        syslog(LOG_WARNING,
+               "warning could not get file xfer save dir, "
+               "file transfers will be disabled");
+        vdagent_file_xfers = NULL;
+        return false;
+    }
+
+    vdagent_file_xfers = vdagent_file_xfers_create(client, xfer_dir,
+                                                   xfer_open_dir, debug);
+    return (vdagent_file_xfers != NULL);
+}
+
 static void daemon_read_complete(struct udscs_connection **connp,
     struct udscs_message_header *header, uint8_t *data)
 {
@@ -313,26 +364,8 @@ reconnect:
         return 1;
     }
 
-    if (!fx_dir) {
-        if (vdagent_x11_has_icons_on_desktop(x11))
-            fx_dir = "xdg-desktop";
-        else
-            fx_dir = "xdg-download";
-    }
-    if (fx_open_dir == -1)
-        fx_open_dir = !vdagent_x11_has_icons_on_desktop(x11);
-    if (!strcmp(fx_dir, "xdg-desktop"))
-        fx_dir = g_get_user_special_dir(G_USER_DIRECTORY_DESKTOP);
-    else if (!strcmp(fx_dir, "xdg-download"))
-        fx_dir = g_get_user_special_dir(G_USER_DIRECTORY_DOWNLOAD);
-    if (fx_dir) {
-        vdagent_file_xfers = vdagent_file_xfers_create(client, fx_dir,
-                                                       fx_open_dir, debug);
-    } else {
-        syslog(LOG_WARNING,
-               "warning could not get file xfer save dir, file transfers will be disabled");
-        vdagent_file_xfers = NULL;
-    }
+    if (!vdagent_init_file_xfer())
+        syslog(LOG_WARNING, "File transfer is disabled");
 
     if (parent_socket) {
         if (write(parent_socket, "OK", 2) != 2)
-- 
2.13.0

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