Various changes to merge in evolution-data-server reliance.

svn path=/trunk/; revision=23206

1 files changed, 0 insertions, 1169 deletions

diff --git a/addressbook/backend/pas/pas-backend-file.c b/addressbook/backend/pas/pas-backend-file.c
deleted file mode 100644
index 73f1797320..0000000000
--- a/addressbook/backend/pas/pas-backend-file.c
+++ /dev/null
@@ -1,1169 +0,0 @@
-/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
-/*
- * Author:
- *   Nat Friedman (nat@ximian.com)
- *
- * Copyright 2000, Ximian, Inc.
- */
-
-#include "config.h"  
-#include "pas-backend-file.h"
-#include "pas-backend-card-sexp.h"
-#include "pas-backend-summary.h"
-#include "pas-book.h"
-#include "pas-book-view.h"
-
-#include <stdio.h>
-#include <string.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <dirent.h>
-#include <time.h>
-#include <errno.h>
-#include <db.h>
-#include <sys/stat.h>
-
-#include <e-util/e-db3-utils.h>
-
-#if DB_VERSION_MAJOR != 3 || \
-    DB_VERSION_MINOR != 1 || \
-    DB_VERSION_PATCH != 17
-#error Including wrong DB3.  Need libdb 3.1.17.
-#endif
-
-#include <gal/util/e-util.h>
-#include <gal/widgets/e-unicode.h>
-
-#include <ebook/e-contact.h>
-#include <e-util/e-dbhash.h>
-#include <e-util/e-db3-utils.h>
-#include <libgnome/gnome-i18n.h>
-
-#define CHANGES_DB_SUFFIX ".changes.db"
-
-#define PAS_BACKEND_FILE_VERSION_NAME "PAS-DB-VERSION"
-#define PAS_BACKEND_FILE_VERSION "0.2"
-
-#define PAS_ID_PREFIX "pas-id-"
-#define SUMMARY_FLUSH_TIMEOUT 5000
-
-static PASBackendSyncClass *pas_backend_file_parent_class;
-
-struct _PASBackendFilePrivate {
-	char     *uri;
-	char     *dirname;
-	char     *filename;
-	char     *summary_filename;
-	DB       *file_db;
-	PASBackendSummary *summary;
-};
-
-static void
-string_to_dbt(const char *str, DBT *dbt)
-{
-	memset (dbt, 0, sizeof (*dbt));
-	dbt->data = (void*)str;
-	dbt->size = strlen (str) + 1;
-}
-
-static void
-build_summary (PASBackendFilePrivate *bfpriv)
-{
-	DB             *db = bfpriv->file_db;
-	DBC            *dbc;
-	int            db_error;
-	DBT  id_dbt, vcard_dbt;
-
-	db_error = db->cursor (db, NULL, &dbc, 0);
-
-	if (db_error != 0) {
-		g_warning ("build_summary: error building list\n");
-		return;
-	}
-
-	memset (&vcard_dbt, 0, sizeof (vcard_dbt));
-	memset (&id_dbt, 0, sizeof (id_dbt));
-	db_error = dbc->c_get(dbc, &id_dbt, &vcard_dbt, DB_FIRST);
-
-	while (db_error == 0) {
-
-		/* don't include the version in the list of cards */
-		if (id_dbt.size != strlen(PAS_BACKEND_FILE_VERSION_NAME) + 1
-		    || strcmp (id_dbt.data, PAS_BACKEND_FILE_VERSION_NAME)) {
-			EContact *contact = e_contact_new_from_vcard (vcard_dbt.data);
-			pas_backend_summary_add_contact (bfpriv->summary, contact);
-			g_object_unref (contact);
-		}
-
-		db_error = dbc->c_get(dbc, &id_dbt, &vcard_dbt, DB_NEXT);
-
-	}
-}
-
-static char *
-pas_backend_file_create_unique_id (void)
-{
-	/* use a 32 counter and the 32 bit timestamp to make an id.
-	   it's doubtful 2^32 id's will be created in a second, so we
-	   should be okay. */
-	static guint c = 0;
-	return g_strdup_printf (PAS_ID_PREFIX "%08lX%08X", time(NULL), c++);
-}
-
-static EContact *
-do_create(PASBackendFile  *bf,
-	  const char      *vcard_req)
-{
-	DB             *db = bf->priv->file_db;
-	DBT            id_dbt, vcard_dbt;
-	int            db_error;
-	char           *id;
-	EContact       *contact;
-	char           *vcard;
-
-	id = pas_backend_file_create_unique_id ();
-
-	string_to_dbt (id, &id_dbt);
-
-	contact = e_contact_new_from_vcard (vcard_req);
-	e_contact_set(contact, E_CONTACT_UID, id);
-	vcard = e_vcard_to_string (E_VCARD (contact), EVC_FORMAT_VCARD_30);
-
-	string_to_dbt (vcard, &vcard_dbt);
-
-	db_error = db->put (db, NULL, &id_dbt, &vcard_dbt, 0);
-
-	g_free (vcard);
-
-	if (0 == db_error) {
-		db_error = db->sync (db, 0);
-		if (db_error != 0)
-			g_warning ("db->sync failed.\n");
-	}
-	else {
-		g_object_unref (contact);
-		contact = NULL;
-	}
-
-	g_free (id);
-	return contact;
-}
-
-static PASBackendSyncStatus
-pas_backend_file_create_contact (PASBackendSync *backend,
-				 PASBook *book,
-				 const char *vcard,
-				 EContact **contact)
-{
-	PASBackendFile *bf = PAS_BACKEND_FILE (backend);
-
-	*contact = do_create (bf, vcard);
-	if (*contact) {
-		pas_backend_summary_add_contact (bf->priv->summary, *contact);
-		return GNOME_Evolution_Addressbook_Success;
-	}
-	else {
-		/* XXX need a different call status for this case, i
-                   think */
-		return GNOME_Evolution_Addressbook_ContactNotFound;
-	}
-}
-
-static PASBackendSyncStatus
-pas_backend_file_remove_contacts (PASBackendSync *backend,
-				  PASBook    *book,
-				  GList *id_list,
-				  GList **ids)
-{
-	PASBackendFile *bf = PAS_BACKEND_FILE (backend);
-	DB             *db = bf->priv->file_db;
-	DBT            id_dbt, vcard_dbt;
-	int            db_error;
-	char          *id;
-	GList         *l;
-	GList         *removed_cards = NULL;
-	GNOME_Evolution_Addressbook_CallStatus rv = GNOME_Evolution_Addressbook_Success;
-
-	for (l = id_list; l; l = l->next) {
-		id = l->data;
-
-		string_to_dbt (id, &id_dbt);
-		memset (&vcard_dbt, 0, sizeof (vcard_dbt));
-
-		db_error = db->get (db, NULL, &id_dbt, &vcard_dbt, 0);
-		if (0 != db_error) {
-			rv = GNOME_Evolution_Addressbook_ContactNotFound;
-			continue;
-		}
-	
-		db_error = db->del (db, NULL, &id_dbt, 0);
-		if (0 != db_error) {
-			rv = GNOME_Evolution_Addressbook_ContactNotFound;
-			continue;
-		}
-
-		removed_cards = g_list_prepend (removed_cards, id);
-	}
-
-	/* if we actually removed some, try to sync */
-	if (removed_cards) {
-		db_error = db->sync (db, 0);
-		if (db_error != 0)
-			g_warning ("db->sync failed.\n");
-	}
-
-	*ids = removed_cards;
-
-	for (l = removed_cards; l; l = l->next) {
-		char *id = l->data;
-		pas_backend_summary_remove_contact (bf->priv->summary, id);
-	}
-
-	return rv;
-}
-
-static PASBackendSyncStatus
-pas_backend_file_modify_contact (PASBackendSync *backend,
-				 PASBook    *book,
-				 const char *vcard,
-				 EContact **contact)
-{
-	PASBackendFile *bf = PAS_BACKEND_FILE (backend);
-	DB             *db = bf->priv->file_db;
-	DBT            id_dbt, vcard_dbt;
-	int            db_error;
-	char          *id, *lookup_id;
-
-	*contact = e_contact_new_from_vcard (vcard);
-	id = e_contact_get(*contact, E_CONTACT_UID);
-
-	/* This is disgusting, but for a time cards were added with
-           ID's that are no longer used (they contained both the uri
-           and the id.) If we recognize it as a uri (file:///...) trim
-           off everything before the last '/', and use that as the
-           id.*/
-	if (!strncmp (id, "file:///", strlen ("file:///"))) {
-		lookup_id = strrchr (id, '/') + 1;
-	}
-	else
-		lookup_id = id;
-
-	string_to_dbt (lookup_id, &id_dbt);	
-	memset (&vcard_dbt, 0, sizeof (vcard_dbt));
-
-	/* get the old ecard - the one that's presently in the db */
-	db_error = db->get (db, NULL, &id_dbt, &vcard_dbt, 0);
-	if (0 != db_error)
-		return GNOME_Evolution_Addressbook_ContactNotFound;
-
-	string_to_dbt (vcard, &vcard_dbt);	
-
-	db_error = db->put (db, NULL, &id_dbt, &vcard_dbt, 0);
-
-	if (0 == db_error) {
-		db_error = db->sync (db, 0);
-		if (db_error != 0)
-			g_warning ("db->sync failed.\n");
-
-		pas_backend_summary_remove_contact (bf->priv->summary, id);
-		pas_backend_summary_add_contact (bf->priv->summary, *contact);
-	}
-	g_free (id);
-
-	if (0 == db_error)
-		return GNOME_Evolution_Addressbook_Success;
-	else
-		return GNOME_Evolution_Addressbook_ContactNotFound;
-}
-
-static PASBackendSyncStatus
-pas_backend_file_get_contact (PASBackendSync *backend,
-			      PASBook    *book,
-			      const char *id,
-			      char **vcard)
-{
-	PASBackendFile *bf;
-	DB             *db;
-	DBT             id_dbt, vcard_dbt;
-	int             db_error = 0;
-
-	bf = PAS_BACKEND_FILE (pas_book_get_backend (book));
-	db = bf->priv->file_db;
-
-	string_to_dbt (id, &id_dbt);
-	memset (&vcard_dbt, 0, sizeof (vcard_dbt));
-
-	db_error = db->get (db, NULL, &id_dbt, &vcard_dbt, 0);
-
-	if (db_error == 0) {
-		*vcard = g_strdup (vcard_dbt.data);
-		return GNOME_Evolution_Addressbook_Success;
-	} else {
-		*vcard = g_strdup ("");
-		return GNOME_Evolution_Addressbook_ContactNotFound;
-	}
-}
-
-static PASBackendSyncStatus
-pas_backend_file_get_contact_list (PASBackendSync *backend,
-				   PASBook    *book,
-				   const char *query,
-				   GList **contacts)
-{
-	PASBackendFile *bf = PAS_BACKEND_FILE (backend);
-	DB             *db = bf->priv->file_db;
-	DBC            *dbc;
-	int            db_error;
-	DBT  id_dbt, vcard_dbt;
-	PASBackendCardSExp *card_sexp = NULL;
-	gboolean search_needed;
-	const char *search = query;
-	GList *contact_list = NULL;
-
-	printf ("pas_backend_file_get_contact_list (%s)\n", search);
-
-	search_needed = TRUE;
-
-	if (!strcmp (search, "(contains \"x-evolution-any-field\" \"\")"))
-		search_needed = FALSE;
-
-	card_sexp = pas_backend_card_sexp_new (search);
-	if (!card_sexp) {
-		/* XXX this needs to be an invalid query error of some sort*/
-		return GNOME_Evolution_Addressbook_ContactNotFound;
-	}
-
-	db_error = db->cursor (db, NULL, &dbc, 0);
-
-	if (db_error != 0) {
-		/* XXX this needs to be some CouldNotOpen error */
-		return GNOME_Evolution_Addressbook_ContactNotFound;
-	}
-
-	memset (&vcard_dbt, 0, sizeof (vcard_dbt));
-	memset (&id_dbt, 0, sizeof (id_dbt));
-	db_error = dbc->c_get(dbc, &id_dbt, &vcard_dbt, DB_FIRST);
-
-	while (db_error == 0) {
-
-		/* don't include the version in the list of cards */
-		if (id_dbt.size != strlen(PAS_BACKEND_FILE_VERSION_NAME) + 1
-		    || strcmp (id_dbt.data, PAS_BACKEND_FILE_VERSION_NAME)) {
-
-			if ((!search_needed) || (card_sexp != NULL && pas_backend_card_sexp_match_vcard  (card_sexp, vcard_dbt.data))) {
-				contact_list = g_list_append (contact_list, g_strdup (vcard_dbt.data));
-			}
-		}
-
-		db_error = dbc->c_get(dbc, &id_dbt, &vcard_dbt, DB_NEXT);
-
-	}
-
-	*contacts = contact_list;
-	return db_error != DB_NOTFOUND
-		? GNOME_Evolution_Addressbook_OtherError
-		: GNOME_Evolution_Addressbook_Success;
-}
-
-typedef struct {
-	GMutex *mutex;
-	gboolean stopped;
-} FileBackendSearchClosure;
-
-static void
-pas_backend_file_start_book_view (PASBackend  *backend,
-				  PASBookView *book_view)
-{
-	FileBackendSearchClosure *closure = g_new0 (FileBackendSearchClosure, 1);
-	PASBackendFile *bf = PAS_BACKEND_FILE (backend);
-	const char *query;
-	DB  *db;
-	DBT id_dbt, vcard_dbt;
-	int db_error;
-	gboolean stopped = FALSE;
-
-	printf ("starting initial population of book view\n");
-
-	/* ref the book view because it'll be removed and unrefed
-	   when/if it's stopped */
-	g_object_ref (book_view);
-
-	db = bf->priv->file_db;
-	query = pas_book_view_get_card_query (book_view);
-
-	closure->mutex = g_mutex_new();
-	closure->stopped = FALSE;
-	g_object_set_data (G_OBJECT (book_view), "PASBackendFile.BookView::closure", closure);
-
-	if ( ! strcmp (query, "(contains \"x-evolution-any-field\" \"\")"))
-		pas_book_view_notify_status_message (book_view, _("Loading..."));
-	else
-		pas_book_view_notify_status_message (book_view, _("Searching..."));
-
-	if (pas_backend_summary_is_summary_query (bf->priv->summary, query)) {
-		/* do a summary query */
-		GPtrArray *ids = pas_backend_summary_search (bf->priv->summary, pas_book_view_get_card_query (book_view));
-		int i;
-
-		for (i = 0; i < ids->len; i ++) {
-			char *id = g_ptr_array_index (ids, i);
-
-			g_mutex_lock (closure->mutex);
-			stopped = closure->stopped;
-			g_mutex_unlock (closure->mutex);
-
-			if (stopped) {
-				g_mutex_free (closure->mutex);
-				g_free (closure);
-				break;
-			}
-
-			string_to_dbt (id, &id_dbt);
-			memset (&vcard_dbt, 0, sizeof (vcard_dbt));
-				
-			db_error = db->get (db, NULL, &id_dbt, &vcard_dbt, 0);
-
-			if (db_error == 0) {
-				EContact *contact = e_contact_new_from_vcard (vcard_dbt.data);
-				pas_book_view_notify_update (book_view, contact);
-				g_object_unref (contact);
-			}
-		}
-
-		g_ptr_array_free (ids, TRUE);
-	}
-	else {
-		/* iterate over the db and do the query there */
-		DBC    *dbc;
-
-		memset (&id_dbt, 0, sizeof (id_dbt));
-		memset (&vcard_dbt, 0, sizeof (vcard_dbt));
-
-		db_error = db->cursor (db, NULL, &dbc, 0);
-
-		db_error = dbc->c_get(dbc, &id_dbt, &vcard_dbt, DB_FIRST);
-		while (db_error == 0) {
-
-			g_mutex_lock (closure->mutex);
-			stopped = closure->stopped;
-			g_mutex_unlock (closure->mutex);
-
-			if (stopped) {
-				g_mutex_free (closure->mutex);
-				g_free (closure);
-				break;
-			}
-
-			/* don't include the version in the list of cards */
-			if (strcmp (id_dbt.data, PAS_BACKEND_FILE_VERSION_NAME)) {
-				char *vcard_string = vcard_dbt.data;
-				EContact *contact = e_contact_new_from_vcard (vcard_string);
-
-				/* notify_update will check if it matches for us */
-				pas_book_view_notify_update (book_view, contact);
-				g_object_unref (contact);
-			}
-
-			db_error = dbc->c_get(dbc, &id_dbt, &vcard_dbt, DB_NEXT);
-		}
-
-		dbc->c_close (dbc);
-
-		if (db_error != DB_NOTFOUND)
-			g_warning ("pas_backend_file_search: error building list\n");
-
-	}
-
-	g_mutex_lock (closure->mutex);
-	stopped = closure->stopped;
-	g_mutex_unlock (closure->mutex);
-	if (!stopped)
-		pas_book_view_notify_complete (book_view, GNOME_Evolution_Addressbook_Success);
-
-	g_mutex_free (closure->mutex);
-	g_free (closure);
-
-	g_object_set_data (G_OBJECT (book_view), "PASBackendFile.BookView::closure", NULL);
-
-	/* unref the */
-	g_object_unref (book_view);
-
-	printf ("finished initial population of book view\n");
-}
-
-static void
-pas_backend_file_stop_book_view (PASBackend  *backend,
-				 PASBookView *book_view)
-{
-	FileBackendSearchClosure *closure = g_object_get_data (G_OBJECT (book_view), "PASBackendFile.BookView::closure");
-	if (!closure) {
-		printf ("book view is already done populating\n");
-		return;
-	}
-
-	printf ("stopping book view!\n");
-	g_mutex_lock (closure->mutex);
-	closure->stopped = TRUE;
-	g_mutex_lock (closure->mutex);
-}
-
-typedef struct {
-	DB *db;
-
-	GList *add_cards;
-	GList *add_ids;
-	GList *mod_cards;
-	GList *mod_ids;
-	GList *del_ids;
-	GList *del_cards;
-} PASBackendFileChangeContext;
-
-static void
-pas_backend_file_changes_foreach_key (const char *key, gpointer user_data)
-{
-	PASBackendFileChangeContext *ctx = user_data;
-	DB      *db = ctx->db;
-	DBT     id_dbt, vcard_dbt;
-	int     db_error = 0;
-	
-	string_to_dbt (key, &id_dbt);
-	memset (&vcard_dbt, 0, sizeof (vcard_dbt));
-	db_error = db->get (db, NULL, &id_dbt, &vcard_dbt, 0);
-	
-	if (db_error != 0) {
-		EContact *contact;
-		char *id = id_dbt.data;
-		char *vcard_string;
-
-		contact = e_contact_new ();
-		e_contact_set (contact, E_CONTACT_UID, id);
-		
-		vcard_string = e_vcard_to_string (E_VCARD (contact), EVC_FORMAT_VCARD_30);
-
-		ctx->del_ids = g_list_append (ctx->del_ids,
-					      g_strdup (id));
-		ctx->del_cards = g_list_append (ctx->del_cards,
-						vcard_string);
-
-		g_object_unref (contact);
-	}
-}
-
-static PASBackendSyncStatus
-pas_backend_file_get_changes (PASBackendSync *backend,
-			      PASBook    *book,
-			      const char *change_id,
-			      GList **changes_out)
-{
-	PASBackendFile *bf = PAS_BACKEND_FILE (backend);
-	int     db_error = 0;
-	DBT     id_dbt, vcard_dbt;
-	char    *filename;
-	EDbHash *ehash;
-	GList *i, *v;
-	DB      *db = bf->priv->file_db;
-	DBC *dbc;
-	GList *changes = NULL;
-	PASBackendFileChangeContext ctx;
-	PASBackendSyncStatus result;
-
-	memset (&id_dbt, 0, sizeof (id_dbt));
-	memset (&vcard_dbt, 0, sizeof (vcard_dbt));
-
-	memset (&ctx, 0, sizeof (ctx));
-
-	ctx.db = db;
-
-	/* Find the changed ids */
-	filename = g_strdup_printf ("%s/%s" CHANGES_DB_SUFFIX, bf->priv->dirname, change_id);
-	ehash = e_dbhash_new (filename);
-	g_free (filename);
-
-	db_error = db->cursor (db, NULL, &dbc, 0);
-
-	if (db_error != 0) {
-		g_warning ("pas_backend_file_changes: error building list\n");
-	} else {
-		db_error = dbc->c_get(dbc, &id_dbt, &vcard_dbt, DB_FIRST);
-
-		while (db_error == 0) {
-
-			/* don't include the version in the list of cards */
-			if (id_dbt.size != strlen(PAS_BACKEND_FILE_VERSION_NAME) + 1
-			    || strcmp (id_dbt.data, PAS_BACKEND_FILE_VERSION_NAME)) {
-				EContact *contact;
-				char *id = id_dbt.data;
-				char *vcard_string;
-				
-				/* Remove fields the user can't change
-				 * and can change without the rest of the
-				 * card changing 
-				 */
-				contact = e_contact_new_from_vcard (vcard_dbt.data);
-#if notyet
-				g_object_set (card, "last_use", NULL, "use_score", 0.0, NULL);
-#endif
-				vcard_string = e_vcard_to_string (E_VCARD (contact), EVC_FORMAT_VCARD_30);
-				g_object_unref (contact);
-				
-				/* check what type of change has occurred, if any */
-				switch (e_dbhash_compare (ehash, id, vcard_string)) {
-				case E_DBHASH_STATUS_SAME:
-					break;
-				case E_DBHASH_STATUS_NOT_FOUND:
-					ctx.add_cards = g_list_append (ctx.add_cards, vcard_string);
-					ctx.add_ids = g_list_append (ctx.add_ids, g_strdup(id));
-					break;
-				case E_DBHASH_STATUS_DIFFERENT:
-					ctx.mod_cards = g_list_append (ctx.mod_cards, vcard_string);
-					ctx.mod_ids = g_list_append (ctx.mod_ids, g_strdup(id));
-					break;
-				}
-			}
-
-			db_error = dbc->c_get(dbc, &id_dbt, &vcard_dbt, DB_NEXT);
-		}
-		dbc->c_close (dbc);
-	}
-
-   	e_dbhash_foreach_key (ehash, (EDbHashFunc)pas_backend_file_changes_foreach_key, &ctx);
-
-	/* Send the changes */
-	if (db_error != DB_NOTFOUND) {
-		g_warning ("pas_backend_file_changes: error building list\n");
-		*changes_out = NULL;
-		result = GNOME_Evolution_Addressbook_OtherError;
-	}
-	else {
-		/* Update the hash and build our changes list */
-		for (i = ctx.add_ids, v = ctx.add_cards; i != NULL; i = i->next, v = v->next){
-			char *id = i->data;
-			char *vcard = v->data;
-
-			e_dbhash_add (ehash, id, vcard);
-			changes = g_list_prepend (changes,
-						  pas_backend_change_add_new (vcard));
-
-			g_free (i->data);
-			g_free (v->data);
-		}	
-		for (i = ctx.mod_ids, v = ctx.mod_cards; i != NULL; i = i->next, v = v->next){
-			char *id = i->data;
-			char *vcard = v->data;
-
-			e_dbhash_add (ehash, id, vcard);
-			changes = g_list_prepend (changes,
-						  pas_backend_change_modify_new (vcard));
-
-			g_free (i->data);
-			g_free (v->data);		
-		}
-		for (i = ctx.del_ids, v = ctx.del_cards; i != NULL; i = i->next, v = v->next){	
-			char *id = i->data;
-			char *vcard = v->data;
-			
-			e_dbhash_remove (ehash, id);
-			
-			changes = g_list_prepend (changes,
-						  pas_backend_change_delete_new (vcard));
-			g_free (i->data);
-			g_free (v->data);
-		}
-
-		e_dbhash_write (ehash);
-
-		result = GNOME_Evolution_Addressbook_Success;
-		*changes_out = changes;
-	}
-
-	e_dbhash_destroy (ehash);
-
-	return GNOME_Evolution_Addressbook_Success;
-}
-
-static char *
-pas_backend_file_extract_path_from_uri (const char *uri)
-{
-	g_assert (strncasecmp (uri, "file://", 7) == 0);
-
-	return g_strdup (uri + 7);
-}
-
-static PASBackendSyncStatus
-pas_backend_file_authenticate_user (PASBackendSync *backend,
-				    PASBook    *book,
-				    const char *user,
-				    const char *passwd,
-				    const char *auth_method)
-{
-	return GNOME_Evolution_Addressbook_Success;
-}
-
-static PASBackendSyncStatus
-pas_backend_file_get_supported_fields (PASBackendSync *backend,
-				       PASBook    *book,
-				       GList **fields_out)
-{
-	GList *fields = NULL;
-	int i;
-
-	/* XXX we need a way to say "we support everything", since the
-	   file backend does */
-	for (i = 1; i < E_CONTACT_FIELD_LAST; i ++)
-		fields = g_list_append (fields, g_strdup (e_contact_field_name (i)));
-
-	*fields_out = fields;
-	return GNOME_Evolution_Addressbook_Success;
-}
-
-/*
-** versions:
-**
-** 0.0 just a list of cards
-**
-** 0.1 same as 0.0, but with the version tag
-**
-** 0.2 not a real format upgrade, just a hack to fix broken ids caused
-**     by a bug in early betas, but we only need to convert them if
-**     the previous version is 0.1, since the bug existed after 0.1
-**     came about.
-*/
-static gboolean
-pas_backend_file_upgrade_db (PASBackendFile *bf, char *old_version)
-{
-	DB  *db = bf->priv->file_db;
-	int db_error;
-	DBT version_name_dbt, version_dbt;
-	
-	if (strcmp (old_version, "0.0")
-	    && strcmp (old_version, "0.1")) {
-		g_warning ("unsupported version '%s' found in PAS backend file\n",
-			   old_version);
-		return FALSE;
-	}
-
-	if (!strcmp (old_version, "0.1")) {
-		/* we just loop through all the cards in the db,
-                   giving them valid ids if they don't have them */
-		DBT  id_dbt, vcard_dbt;
-		DBC *dbc;
-		int  card_failed = 0;
-
-		db_error = db->cursor (db, NULL, &dbc, 0);
-		if (db_error != 0) {
-			g_warning ("unable to get cursor");
-			return FALSE;
-		}
-
-		memset (&id_dbt, 0, sizeof (id_dbt));
-		memset (&vcard_dbt, 0, sizeof (vcard_dbt));
-
-		db_error = dbc->c_get(dbc, &id_dbt, &vcard_dbt, DB_FIRST);
-
-		while (db_error == 0) {
-			if (id_dbt.size != strlen(PAS_BACKEND_FILE_VERSION_NAME) + 1
-			    || strcmp (id_dbt.data, PAS_BACKEND_FILE_VERSION_NAME)) {
-				EContact *contact;
-
-				contact = e_contact_new_from_vcard (vcard_dbt.data);
-
-				/* the cards we're looking for are
-				   created with a normal id dbt, but
-				   with the id field in the vcard set
-				   to something that doesn't match.
-				   so, we need to modify the card to
-				   have the same id as the the dbt. */
-				if (strcmp (id_dbt.data, e_contact_get_const (contact, E_CONTACT_UID))) {
-					char *vcard;
-
-					e_contact_set (contact, E_CONTACT_UID, id_dbt.data);
-
-					vcard = e_vcard_to_string (E_VCARD (contact), EVC_FORMAT_VCARD_30);
-					string_to_dbt (vcard, &vcard_dbt);
-
-					db_error = db->put (db, NULL,
-							    &id_dbt, &vcard_dbt, 0);
-
-					g_free (vcard);
-
-					if (db_error != 0)
-						card_failed++;
-				}
-
-				g_object_unref (contact);
-			}
-
-			db_error = dbc->c_get(dbc, &id_dbt, &vcard_dbt, DB_NEXT);
-		}
-
-		if (card_failed) {
-			g_warning ("failed to update %d cards\n", card_failed);
-			return FALSE;
-		}
-	}
-
-	string_to_dbt (PAS_BACKEND_FILE_VERSION_NAME, &version_name_dbt);
-	string_to_dbt (PAS_BACKEND_FILE_VERSION, &version_dbt);
-
-	db_error = db->put (db, NULL, &version_name_dbt, &version_dbt, 0);
-	if (db_error == 0)
-		return TRUE;
-	else
-		return FALSE;
-}
-
-static gboolean
-pas_backend_file_maybe_upgrade_db (PASBackendFile *bf)
-{
-	DB   *db = bf->priv->file_db;
-	DBT  version_name_dbt, version_dbt;
-	int  db_error;
-	char *version;
-	gboolean ret_val = TRUE;
-
-	string_to_dbt (PAS_BACKEND_FILE_VERSION_NAME, &version_name_dbt);
-	memset (&version_dbt, 0, sizeof (version_dbt));
-
-	db_error = db->get (db, NULL, &version_name_dbt, &version_dbt, 0);
-	if (db_error == 0) {
-		/* success */
-		version = g_strdup (version_dbt.data);
-	}
-	else {
-		/* key was not in file */
-		version = g_strdup ("0.0");
-	}
-
-	if (strcmp (version, PAS_BACKEND_FILE_VERSION))
-		ret_val = pas_backend_file_upgrade_db (bf, version);
-
-	g_free (version);
-
-	return ret_val;
-}
-
-#include "ximian-vcard.h"
-
-static GNOME_Evolution_Addressbook_CallStatus
-pas_backend_file_load_uri (PASBackend             *backend,
-			   const char             *uri,
-			   gboolean                only_if_exists)
-{
-	PASBackendFile *bf = PAS_BACKEND_FILE (backend);
-	char           *dirname, *filename;
-	gboolean        writable = FALSE;
-	int             db_error;
-	DB *db;
-	int major, minor, patch;
-	time_t db_mtime;
-	struct stat sb;
-
-	g_free(bf->priv->uri);
-	bf->priv->uri = g_strdup (uri);
-
-	db_version (&major, &minor, &patch);
-
-	if (major != 3 ||
-	    minor != 1 ||
-	    patch != 17) {
-		g_warning ("Wrong version of libdb.");
-		return GNOME_Evolution_Addressbook_OtherError;
-	}
-
-	dirname = pas_backend_file_extract_path_from_uri (uri);
-	filename = g_build_filename (dirname, "addressbook.db", NULL);
-
-	db_error = e_db3_utils_maybe_recover (filename);
-	if (db_error != 0)
-		return GNOME_Evolution_Addressbook_OtherError;
-
-	db_error = db_create (&db, NULL, 0);
-	if (db_error != 0)
-		return GNOME_Evolution_Addressbook_OtherError;
-
-	db_error = db->open (db, filename, NULL, DB_HASH, 0, 0666);
-
-	if (db_error == DB_OLD_VERSION) {
-		db_error = e_db3_utils_upgrade_format (filename);
-
-		if (db_error != 0)
-			return GNOME_Evolution_Addressbook_OtherError;
-
-		db_error = db->open (db, filename, NULL, DB_HASH, 0, 0666);
-	}
-
-	bf->priv->file_db = db;
-
-	if (db_error == 0) {
-		writable = TRUE;
-	} else {
-		db_error = db->open (db, filename, NULL, DB_HASH, DB_RDONLY, 0666);
-
-		if (db_error != 0) {
-			int rv;
-
-			/* the database didn't exist, so we create the
-			   directory then the .db */
-			rv = mkdir (dirname, 0777);
-			if (rv == -1 && errno != EEXIST) {
-				g_warning ("failed to make directory %s: %s", dirname, strerror (errno));
-				if (errno == EACCES || errno == EPERM)
-					return GNOME_Evolution_Addressbook_PermissionDenied;
-				else
-					return GNOME_Evolution_Addressbook_OtherError;
-			}
-
-			db_error = db->open (db, filename, NULL, DB_HASH, DB_CREATE, 0666);
-
-			if (db_error == 0 && !only_if_exists) {
-				EContact *contact;
-
-				contact = do_create(bf, XIMIAN_VCARD);
-				/* XXX check errors here */
-				g_object_unref (contact);
-
-				writable = TRUE;
-			}
-		}
-	}
-
-	if (db_error != 0) {
-		bf->priv->file_db = NULL;
-		return GNOME_Evolution_Addressbook_OtherError;
-	}
-
-	if (!pas_backend_file_maybe_upgrade_db (bf)) {
-		db->close (db, 0);
-		bf->priv->file_db = NULL;
-		return GNOME_Evolution_Addressbook_OtherError;
-	}
-
-	g_free (bf->priv->dirname);
-	g_free (bf->priv->filename);
-	bf->priv->dirname = dirname;
-	bf->priv->filename = filename;
-
-	if (stat (bf->priv->filename, &sb) == -1) {
-		db->close (db, 0);
-		bf->priv->file_db = NULL;
-		return GNOME_Evolution_Addressbook_OtherError;
-	}
-	db_mtime = sb.st_mtime;
-
-	g_free (bf->priv->summary_filename);
-	bf->priv->summary_filename = g_strconcat (bf->priv->filename, ".summary", NULL);
-	bf->priv->summary = pas_backend_summary_new (bf->priv->summary_filename, SUMMARY_FLUSH_TIMEOUT);
-
-	if (pas_backend_summary_is_up_to_date (bf->priv->summary, db_mtime) == FALSE
-	    || pas_backend_summary_load (bf->priv->summary) == FALSE ) {
-		build_summary (bf->priv);
-	}
-
-	pas_backend_set_is_loaded (backend, TRUE);
-	pas_backend_set_is_writable (backend, writable);
-
-	return GNOME_Evolution_Addressbook_Success;
-}
-
-static int
-select_changes (const struct dirent *d)
-{
-	char *p;
-
-	if (strlen (d->d_name) < strlen (CHANGES_DB_SUFFIX))
-		return 0;
-
-	p = strstr (d->d_name, CHANGES_DB_SUFFIX);
-	if (!p)
-		return 0;
-
-	if (strlen (p) != strlen (CHANGES_DB_SUFFIX))
-		return 0;
-
-	return 1;
-}
-
-static PASBackendSyncStatus
-pas_backend_file_remove (PASBackendSync *backend,
-			 PASBook        *book)
-{
-	PASBackendFile *bf = PAS_BACKEND_FILE (backend);
-	struct dirent **namelist;
-	int n;
-
-	if (-1 == unlink (bf->priv->filename)) {
-		if (errno == EACCES || errno == EPERM)
-			return GNOME_Evolution_Addressbook_PermissionDenied;
-		else
-			return GNOME_Evolution_Addressbook_OtherError;
-	}
-
-	/* unref the summary before we remove the file so it's not written out again */
-	g_object_unref (bf->priv->summary);
-	bf->priv->summary = NULL;
-	if (-1 == unlink (bf->priv->filename))
-		g_warning ("failed to remove summary file `%s`: %s", bf->priv->summary_filename, strerror (errno));
-
-	/* scandir to select all the "*.changes.db" files, then remove them */
-	n = scandir (bf->priv->dirname,
-		     &namelist, select_changes, alphasort);
-	if (n < 0) {
-		g_warning ("scandir of directory `%s' failed: %s", bf->priv->dirname, strerror (errno));
-	}
-	else {
-		while (n -- ) {
-			char *full_path = g_build_filename (bf->priv->dirname, namelist[n]->d_name, NULL);
-			if (-1 == unlink (full_path)) {
-				g_warning ("failed to remove change db `%s': %s", full_path, strerror (errno));
-			}
-			g_free (full_path);
-			free (namelist[n]);
-		}
-		free (namelist);
-	}
-
-	if (-1 == rmdir (bf->priv->dirname))
-		g_warning ("failed to remove directory `%s`: %s", bf->priv->dirname, strerror (errno));
-
-	/* we may not have actually succeeded in removing the
-	   backend's files/dirs, but there's nothing we can do about
-	   it here..  the only time we should return failure is if we
-	   failed to remove the actual data.  a failure should mean
-	   that the addressbook is still valid */
-	return GNOME_Evolution_Addressbook_Success;
-}
-
-static char *
-pas_backend_file_get_static_capabilities (PASBackend *backend)
-{
-	return g_strdup("local,do-initial-query,bulk-removes");
-}
-
-static GNOME_Evolution_Addressbook_CallStatus
-pas_backend_file_cancel_operation (PASBackend *backend, PASBook *book)
-{
-	return GNOME_Evolution_Addressbook_CouldNotCancel;
-}
-
-static gboolean
-pas_backend_file_construct (PASBackendFile *backend)
-{
-	g_assert (backend != NULL);
-	g_assert (PAS_IS_BACKEND_FILE (backend));
-
-	if (! pas_backend_construct (PAS_BACKEND (backend)))
-		return FALSE;
-
-	return TRUE;
-}
-
-/**
- * pas_backend_file_new:
- */
-PASBackend *
-pas_backend_file_new (void)
-{
-	PASBackendFile *backend;
-
-	backend = g_object_new (PAS_TYPE_BACKEND_FILE, NULL);
-
-	if (! pas_backend_file_construct (backend)) {
-		g_object_unref (backend);
-
-		return NULL;
-	}
-
-	return PAS_BACKEND (backend);
-}
-
-static void
-pas_backend_file_dispose (GObject *object)
-{
-	PASBackendFile *bf;
-
-	bf = PAS_BACKEND_FILE (object);
-
-	if (bf->priv) {
-		if (bf->priv->summary)
-			g_object_unref(bf->priv->summary);
-		g_free (bf->priv->uri);
-		g_free (bf->priv->filename);
-		g_free (bf->priv->dirname);
-		g_free (bf->priv->summary_filename);
-
-		g_free (bf->priv);
-		bf->priv = NULL;
-	}
-
-	G_OBJECT_CLASS (pas_backend_file_parent_class)->dispose (object);	
-}
-
-static void
-pas_backend_file_class_init (PASBackendFileClass *klass)
-{
-	GObjectClass    *object_class = G_OBJECT_CLASS (klass);
-	PASBackendSyncClass *sync_class;
-	PASBackendClass *backend_class;
-
-	pas_backend_file_parent_class = g_type_class_peek_parent (klass);
-
-	sync_class = PAS_BACKEND_SYNC_CLASS (klass);
-	backend_class = PAS_BACKEND_CLASS (klass);
-
-	/* Set the virtual methods. */
-	backend_class->load_uri                = pas_backend_file_load_uri;
-	backend_class->get_static_capabilities = pas_backend_file_get_static_capabilities;
-	backend_class->start_book_view         = pas_backend_file_start_book_view;
-	backend_class->stop_book_view          = pas_backend_file_stop_book_view;
-	backend_class->cancel_operation        = pas_backend_file_cancel_operation;
-
-	sync_class->remove_sync                = pas_backend_file_remove;
-	sync_class->create_contact_sync        = pas_backend_file_create_contact;
-	sync_class->remove_contacts_sync       = pas_backend_file_remove_contacts;
-	sync_class->modify_contact_sync        = pas_backend_file_modify_contact;
-	sync_class->get_contact_sync           = pas_backend_file_get_contact;
-	sync_class->get_contact_list_sync      = pas_backend_file_get_contact_list;
-	sync_class->get_changes_sync           = pas_backend_file_get_changes;
-	sync_class->authenticate_user_sync     = pas_backend_file_authenticate_user;
-	sync_class->get_supported_fields_sync  = pas_backend_file_get_supported_fields;
-
-	object_class->dispose = pas_backend_file_dispose;
-}
-
-static void
-pas_backend_file_init (PASBackendFile *backend)
-{
-	PASBackendFilePrivate *priv;
-
-	priv             = g_new0 (PASBackendFilePrivate, 1);
-	priv->uri        = NULL;
-
-	backend->priv = priv;
-}
-
-/**
- * pas_backend_file_get_type:
- */
-GType
-pas_backend_file_get_type (void)
-{
-	static GType type = 0;
-
-	if (! type) {
-		GTypeInfo info = {
-			sizeof (PASBackendFileClass),
-			NULL, /* base_class_init */
-			NULL, /* base_class_finalize */
-			(GClassInitFunc)  pas_backend_file_class_init,
-			NULL, /* class_finalize */
-			NULL, /* class_data */
-			sizeof (PASBackendFile),
-			0,    /* n_preallocs */
-			(GInstanceInitFunc) pas_backend_file_init
-		};
-
-		type = g_type_register_static (PAS_TYPE_BACKEND_SYNC, "PASBackendFile", &info, 0);
-	}
-
-	return type;
-}