Backend now retrieves a request, not an Atom ID

[cascardo/atompub.git] / backend / gio / gio.c

diff --git a/backend/gio/gio.c b/backend/gio/gio.c
index 1157753..02a8640 100644 (file)
--- a/backend/gio/gio.c
+++ b/backend/gio/gio.c
@@ -20,35 +20,118 @@
 #include <glib.h>
 #include <gio/gio.h>
 #include <atompub/atom.h>
+#include <atompub/atom-glib.h>
+#include <string.h>
 
-GFile *gio_iri_to_file (AtomCtx *ctx, IRI *iri)
+static GFile *
+gio_req_to_file (AtomCtx *ctx, char *req)
 {
   gchar *root = atom_config_get_str (ctx, "gio", "root");
-  gchar *path = iri_get_path (iri);
-  gchar *filename = g_build_filename (root, path, NULL);
+  gchar *filename = g_build_filename (root, req, NULL);
   GFile *file = g_file_new_for_path (filename);
   g_free (root);
   g_free (filename);
   return file;
 }
 
-Atom * gio_atom_retrieve_resource (AtomCtx *ctx, IRI *iri)
+static AtomEntry *
+gio_file_to_atom (AtomCtx *ctx, GFile *file)
 {
-  GFile *file;
   GError *error = NULL;
   gchar *data;
   gsize len;
-  Atom *atom;
-  file = gio_iri_to_file (ctx, iri);
+  AtomEntry *atom;
   error = NULL;
   if (!g_file_load_contents (file, NULL, &data, &len, NULL, &error))
     {
-      g_object_unref (file);
-      atom_error_set (ctx, error);
+      AtomError *aerr = atom_error_new_from_gerror (error);
+      atom_error_set (ctx, aerr);
+      g_error_free (error);
       return NULL;
     }
-  g_object_unref (file);
-  atom = atom_new_data_len (data, len);
+  atom = atom_entry_new_data_len (data, len);
   g_free (data);
   return atom;
 }
+
+static AtomEntry *
+gio_atom_retrieve_entry (AtomCtx *ctx, char *req)
+{
+  GFile *file;
+  AtomEntry *atom;
+  file = gio_req_to_file (ctx, req);
+  atom = gio_file_to_atom (ctx, file);
+  g_object_unref (file);
+  return atom;
+}
+
+static void
+gio_enumerate_entries (AtomCtx *ctx, char ***reqs, AtomEntry ***entries,
+                      size_t *len)
+{
+  GFile *dir;
+  GFileEnumerator *enumerator;
+  GFileInfo *info;
+  GFile *file;
+  AtomEntry *entry;
+  GError *error;
+  gchar *root;
+  gchar *name;
+  gchar *filename;
+  GPtrArray *array;
+  GPtrArray *filenames;
+  root = atom_config_get_str (ctx, "gio", "root");
+  dir = g_file_new_for_path (root);
+  error = NULL;
+  enumerator = g_file_enumerate_children (dir, G_FILE_ATTRIBUTE_STANDARD_NAME,
+                                         G_FILE_QUERY_INFO_NONE, NULL, &error);
+  if (enumerator == NULL)
+    {
+      AtomError *aerr = atom_error_new_from_gerror (error);
+      atom_error_set (ctx, aerr);
+      g_error_free (error);
+      return;
+    }
+  array = g_ptr_array_new ();
+  filenames = g_ptr_array_new ();
+  while ((info = g_file_enumerator_next_file (enumerator, NULL, NULL)) != NULL)
+    {
+      name = g_file_info_get_name (info);
+      filename = g_build_filename (root, name, NULL);
+      file = g_file_new_for_path (filename);
+      entry = gio_file_to_atom (ctx, file);
+      if (entry)
+        {
+          g_ptr_array_add (array, entry);
+          g_ptr_array_add (filenames, g_strdup (name));
+        }
+      else
+        {
+          atom_error_set (ctx, NULL);
+        }
+      g_object_unref (file);
+      g_free (filename);
+      g_object_unref (info);
+    }
+  g_object_unref (enumerator);
+  g_object_unref (dir);
+  g_free (root);
+  if (reqs)
+    *reqs = filenames->pdata;
+  if (entries)
+    *entries = array->pdata;
+  if (len)
+    *len = array->len;
+  g_ptr_array_free (array, FALSE);
+  g_ptr_array_free (filenames, FALSE);
+}
+
+AtomBackend *
+gio_backend (void)
+{
+  AtomBackend *backend;
+  backend = atom_backend_new ();
+  atom_backend_retrieve_entry_set (backend, gio_atom_retrieve_entry);
+  atom_backend_enumerate_entries_set (backend, gio_enumerate_entries);
+  return backend;
+}