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authornobody <nobody@localhost>2003-12-09 09:57:09 +0800
committernobody <nobody@localhost>2003-12-09 09:57:09 +0800
commit40e6fffa5ed18480dc9a4d952d55ebd819a9d953 (patch)
tree75bb0caf9afd4b94842023406d6a7938c5d8b2b7 /camel/providers/imap/camel-imap-search.c
parent0031a7166cd0f3fc0cec0b60c468ca22a8c45b0b (diff)
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Diffstat (limited to 'camel/providers/imap/camel-imap-search.c')
-rw-r--r--camel/providers/imap/camel-imap-search.c499
1 files changed, 0 insertions, 499 deletions
diff --git a/camel/providers/imap/camel-imap-search.c b/camel/providers/imap/camel-imap-search.c
deleted file mode 100644
index eacb839cb2..0000000000
--- a/camel/providers/imap/camel-imap-search.c
+++ /dev/null
@@ -1,499 +0,0 @@
-/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
-/* camel-imap-search.c: IMAP folder search */
-
-/*
- * Authors:
- * Dan Winship <danw@ximian.com>
- * Michael Zucchi <notzed@ximian.com>
- *
- * Copyright 2000, 2001, 2002 Ximian, Inc.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public
- * License along with this program; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- *
- */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include <string.h>
-
-#include "camel-imap-command.h"
-#include "camel-imap-folder.h"
-#include "camel-imap-store.h"
-#include "camel-imap-search.h"
-#include "camel-imap-private.h"
-#include "camel-imap-utils.h"
-#include "camel-imap-summary.h"
-
-#include "e-util/md5-utils.h" /* md5 hash building */
-#include "camel-mime-utils.h" /* base64 encoding */
-
-#include "camel-seekable-stream.h"
-#include "camel-search-private.h"
-
-#define d(x)
-
-/*
- File is:
- BODY (as in body search)
- Last uid when search performed
- termcount: number of search terms
- matchcount: number of matches
- term0, term1 ...
- match0, match1, match2, ...
-*/
-
-/* size of in-memory cache */
-#define MATCH_CACHE_SIZE (32)
-
-/* Also takes care of 'endianness' file magic */
-#define MATCH_MARK (('B' << 24) | ('O' << 16) | ('D' << 8) | 'Y')
-
-/* on-disk header, in native endianness format, matches follow */
-struct _match_header {
- guint32 mark;
- guint32 validity; /* uidvalidity for this folder */
- guint32 lastuid;
- guint32 termcount;
- guint32 matchcount;
-};
-
-/* in-memory record */
-struct _match_record {
- struct _match_record *next;
- struct _match_record *prev;
-
- char hash[17];
-
- guint32 lastuid;
- guint32 validity;
-
- unsigned int termcount;
- char **terms;
- GArray *matches;
-};
-
-
-static void free_match(CamelImapSearch *is, struct _match_record *mr);
-static ESExpResult *imap_body_contains (struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *s);
-
-static CamelFolderSearchClass *imap_search_parent_class;
-
-static void
-camel_imap_search_class_init (CamelImapSearchClass *camel_imap_search_class)
-{
- /* virtual method overload */
- CamelFolderSearchClass *camel_folder_search_class =
- CAMEL_FOLDER_SEARCH_CLASS (camel_imap_search_class);
-
- imap_search_parent_class = (CamelFolderSearchClass *)camel_type_get_global_classfuncs (camel_folder_search_get_type ());
-
- /* virtual method overload */
- camel_folder_search_class->body_contains = imap_body_contains;
-}
-
-static void
-camel_imap_search_init(CamelImapSearch *is)
-{
- e_dlist_init(&is->matches);
- is->matches_hash = g_hash_table_new(g_str_hash, g_str_equal);
- is->matches_count = 0;
- is->lastuid = 0;
-}
-
-static void
-camel_imap_search_finalise(CamelImapSearch *is)
-{
- struct _match_record *mr;
-
- while ( (mr = (struct _match_record *)e_dlist_remtail(&is->matches)) )
- free_match(is, mr);
- g_hash_table_destroy(is->matches_hash);
- if (is->cache)
- camel_object_unref((CamelObject *)is->cache);
-}
-
-CamelType
-camel_imap_search_get_type (void)
-{
- static CamelType camel_imap_search_type = CAMEL_INVALID_TYPE;
-
- if (camel_imap_search_type == CAMEL_INVALID_TYPE) {
- camel_imap_search_type = camel_type_register (
- CAMEL_FOLDER_SEARCH_TYPE, "CamelImapSearch",
- sizeof (CamelImapSearch),
- sizeof (CamelImapSearchClass),
- (CamelObjectClassInitFunc) camel_imap_search_class_init, NULL,
- (CamelObjectInitFunc) camel_imap_search_init,
- (CamelObjectFinalizeFunc) camel_imap_search_finalise);
- }
-
- return camel_imap_search_type;
-}
-
-/**
- * camel_imap_search_new:
- *
- * Return value: A new CamelImapSearch widget.
- **/
-CamelFolderSearch *
-camel_imap_search_new (const char *cachedir)
-{
- CamelFolderSearch *new = CAMEL_FOLDER_SEARCH (camel_object_new (camel_imap_search_get_type ()));
- CamelImapSearch *is = (CamelImapSearch *)new;
-
- camel_folder_search_construct (new);
-
- is->cache = camel_data_cache_new(cachedir, 0, NULL);
- if (is->cache) {
- /* Expire entries after 14 days of inactivity */
- camel_data_cache_set_expire_access(is->cache, 60*60*24*14);
- }
-
- return new;
-}
-
-
-static void
-hash_match(char hash[17], int argc, struct _ESExpResult **argv)
-{
- MD5Context ctx;
- unsigned char digest[16];
- unsigned int state = 0, save = 0;
- int i;
-
- md5_init(&ctx);
- for (i=0;i<argc;i++) {
- if (argv[i]->type == ESEXP_RES_STRING)
- md5_update(&ctx, argv[i]->value.string, strlen(argv[i]->value.string));
- }
- md5_final(&ctx, digest);
-
- camel_base64_encode_close(digest, 12, FALSE, hash, &state, &save);
-
- for (i=0;i<16;i++) {
- if (hash[i] == '+')
- hash[i] = ',';
- if (hash[i] == '/')
- hash[i] = '_';
- }
-
- hash[16] = 0;
-}
-
-static int
-save_match(CamelImapSearch *is, struct _match_record *mr)
-{
- guint32 mark = MATCH_MARK;
- int ret = 0;
- struct _match_header header;
- CamelStream *stream;
-
- /* since its a cache, doesn't matter if it doesn't save, at least we have the in-memory cache
- for this session */
- if (is->cache == NULL)
- return -1;
-
- stream = camel_data_cache_add(is->cache, "search/body-contains", mr->hash, NULL);
- if (stream == NULL)
- return -1;
-
- d(printf("Saving search cache entry to '%s': %s\n", mr->hash, mr->terms[0]));
-
- /* we write the whole thing, then re-write the header magic, saves fancy sync code */
- memcpy(&header.mark, " ", 4);
- header.termcount = 0;
- header.matchcount = mr->matches->len;
- header.lastuid = mr->lastuid;
- header.validity = mr->validity;
-
- if (camel_stream_write(stream, (char *)&header, sizeof(header)) != sizeof(header)
- || camel_stream_write(stream, mr->matches->data, mr->matches->len*sizeof(guint32)) != mr->matches->len*sizeof(guint32)
- || camel_seekable_stream_seek((CamelSeekableStream *)stream, 0, CAMEL_STREAM_SET) == -1
- || camel_stream_write(stream, (char *)&mark, sizeof(mark)) != sizeof(mark)) {
- d(printf(" saving failed, removing cache entry\n"));
- camel_data_cache_remove(is->cache, "search/body-contains", mr->hash, NULL);
- ret = -1;
- }
-
- camel_object_unref((CamelObject *)stream);
- return ret;
-}
-
-static void
-free_match(CamelImapSearch *is, struct _match_record *mr)
-{
- int i;
-
- for (i=0;i<mr->termcount;i++)
- g_free(mr->terms[i]);
- g_free(mr->terms);
- g_array_free(mr->matches, TRUE);
- g_free(mr);
-}
-
-static struct _match_record *
-load_match(CamelImapSearch *is, char hash[17], int argc, struct _ESExpResult **argv)
-{
- struct _match_record *mr;
- CamelStream *stream = NULL;
- struct _match_header header;
- int i;
-
- mr = g_malloc0(sizeof(*mr));
- mr->matches = g_array_new(0, 0, sizeof(guint32));
- g_assert(strlen(hash) == 16);
- strcpy(mr->hash, hash);
- mr->terms = g_malloc0(sizeof(mr->terms[0]) * argc);
- for (i=0;i<argc;i++) {
- if (argv[i]->type == ESEXP_RES_STRING) {
- mr->termcount++;
- mr->terms[i] = g_strdup(argv[i]->value.string);
- }
- }
-
- d(printf("Loading search cache entry to '%s': %s\n", mr->hash, mr->terms[0]));
-
- memset(&header, 0, sizeof(header));
- if (is->cache)
- stream = camel_data_cache_get(is->cache, "search/body-contains", mr->hash, NULL);
- if (stream != NULL) {
- /* 'cause i'm gonna be lazy, i'm going to have the termcount == 0 for now,
- and not load or save them since i can't think of a nice way to do it, the hash
- should be sufficient to key it */
- /* This check should also handle endianness changes, we just throw away
- the data (its only a cache) */
- if (camel_stream_read(stream, (char *)&header, sizeof(header)) == sizeof(header)
- && header.validity == is->validity
- && header.mark == MATCH_MARK
- && header.termcount == 0) {
- d(printf(" found %d matches\n", header.matchcount));
- g_array_set_size(mr->matches, header.matchcount);
- camel_stream_read(stream, mr->matches->data, sizeof(guint32)*header.matchcount);
- } else {
- d(printf(" file format invalid/validity changed\n"));
- memset(&header, 0, sizeof(header));
- }
- camel_object_unref((CamelObject *)stream);
- } else {
- d(printf(" no cache entry found\n"));
- }
-
- mr->validity = header.validity;
- if (mr->validity != is->validity)
- mr->lastuid = 0;
- else
- mr->lastuid = header.lastuid;
-
- return mr;
-}
-
-static int
-sync_match(CamelImapSearch *is, struct _match_record *mr)
-{
- char *p, *result, *lasts = NULL;
- CamelImapResponse *response = NULL;
- guint32 uid;
- CamelFolder *folder = ((CamelFolderSearch *)is)->folder;
- CamelImapStore *store = (CamelImapStore *)folder->parent_store;
- struct _camel_search_words *words;
- GString *search;
- int i;
-
- if (mr->lastuid >= is->lastuid && mr->validity == is->validity)
- return 0;
-
- d(printf ("updating match record for uid's %d:%d\n", mr->lastuid+1, is->lastuid));
-
- /* TODO: Handle multiple search terms */
-
- /* This handles multiple search words within a single term */
- words = camel_search_words_split (mr->terms[0]);
- search = g_string_new ("");
- g_string_append_printf (search, "UID %d:%d", mr->lastuid + 1, is->lastuid);
- for (i = 0; i < words->len; i++) {
- char *w = words->words[i]->word, c;
-
- g_string_append_printf (search, " BODY \"");
- while ((c = *w++)) {
- if (c == '\\' || c == '"')
- g_string_append_c (search, '\\');
- g_string_append_c (search, c);
- }
- g_string_append_c (search, '"');
- }
- camel_search_words_free (words);
-
- /* We only try search using utf8 if its non us-ascii text? */
- if ((words->type & CAMEL_SEARCH_WORD_8BIT) && (store->capabilities & IMAP_CAPABILITY_utf8_search)) {
- response = camel_imap_command (store, folder, NULL,
- "UID SEARCH CHARSET UTF-8 %s", search->str);
- /* We can't actually tell if we got a NO response, so assume always */
- if (response == NULL)
- store->capabilities &= ~IMAP_CAPABILITY_utf8_search;
- }
- if (response == NULL)
- response = camel_imap_command (store, folder, NULL,
- "UID SEARCH %s", search->str);
- g_string_free(search, TRUE);
-
- if (!response)
- return -1;
- result = camel_imap_response_extract (store, response, "SEARCH", NULL);
- if (!result)
- return -1;
-
- p = result + sizeof ("* SEARCH");
- for (p = strtok_r (p, " ", &lasts); p; p = strtok_r (NULL, " ", &lasts)) {
- uid = strtoul(p, NULL, 10);
- g_array_append_vals(mr->matches, &uid, 1);
- }
- g_free(result);
-
- mr->validity = is->validity;
- mr->lastuid = is->lastuid;
- save_match(is, mr);
-
- return 0;
-}
-
-static struct _match_record *
-get_match(CamelImapSearch *is, int argc, struct _ESExpResult **argv)
-{
- char hash[17];
- struct _match_record *mr;
-
- hash_match(hash, argc, argv);
-
- mr = g_hash_table_lookup(is->matches_hash, hash);
- if (mr == NULL) {
- while (is->matches_count >= MATCH_CACHE_SIZE) {
- mr = (struct _match_record *)e_dlist_remtail(&is->matches);
- if (mr) {
- printf("expiring match '%s' (%s)\n", mr->hash, mr->terms[0]);
- g_hash_table_remove(is->matches_hash, mr->hash);
- free_match(is, mr);
- is->matches_count--;
- } else {
- is->matches_count = 0;
- }
- }
- mr = load_match(is, hash, argc, argv);
- g_hash_table_insert(is->matches_hash, mr->hash, mr);
- is->matches_count++;
- } else {
- e_dlist_remove((EDListNode *)mr);
- }
-
- e_dlist_addhead(&is->matches, (EDListNode *)mr);
-
- /* what about offline mode? */
- /* We could cache those results too, or should we cache them elsewhere? */
- sync_match(is, mr);
-
- return mr;
-}
-
-static ESExpResult *
-imap_body_contains (struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *s)
-{
- CamelImapStore *store = CAMEL_IMAP_STORE (s->folder->parent_store);
- CamelImapSearch *is = (CamelImapSearch *)s;
- char *uid;
- ESExpResult *r;
- CamelMessageInfo *info;
- GHashTable *uid_hash = NULL;
- GPtrArray *array;
- int i, j;
- struct _match_record *mr;
- guint32 uidn, *uidp;
-
- d(printf("Performing body search '%s'\n", argv[0]->value.string));
-
- /* TODO: Cache offline searches too? */
-
- /* If offline, search using the parent class, which can handle this manually */
- if (!camel_disco_store_check_online (CAMEL_DISCO_STORE (store), NULL))
- return imap_search_parent_class->body_contains(f, argc, argv, s);
-
- /* optimise the match "" case - match everything */
- if (argc == 1 && argv[0]->value.string[0] == '\0') {
- if (s->current) {
- r = e_sexp_result_new(f, ESEXP_RES_BOOL);
- r->value.bool = TRUE;
- } else {
- r = e_sexp_result_new(f, ESEXP_RES_ARRAY_PTR);
- r->value.ptrarray = g_ptr_array_new ();
- for (i = 0; i < s->summary->len; i++) {
- info = g_ptr_array_index(s->summary, i);
- g_ptr_array_add(r->value.ptrarray, (char *)camel_message_info_uid(info));
- }
- }
- } else if (argc == 0 || s->summary->len == 0) {
- /* nothing to match case, do nothing (should be handled higher up?) */
- if (s->current) {
- r = e_sexp_result_new(f, ESEXP_RES_BOOL);
- r->value.bool = FALSE;
- } else {
- r = e_sexp_result_new(f, ESEXP_RES_ARRAY_PTR);
- r->value.ptrarray = g_ptr_array_new ();
- }
- } else {
- int truth = FALSE;
-
- /* setup lastuid/validity for synchronising */
- info = g_ptr_array_index(s->summary, s->summary->len-1);
- is->lastuid = strtoul(camel_message_info_uid(info), NULL, 10);
- is->validity = ((CamelImapSummary *)(s->folder->summary))->validity;
-
- mr = get_match(is, argc, argv);
-
- if (s->current) {
- uidn = strtoul(camel_message_info_uid(s->current), NULL, 10);
- uidp = (guint32 *)mr->matches->data;
- j = mr->matches->len;
- for (i=0;i<j && !truth;i++)
- truth = *uidp++ == uidn;
- r = e_sexp_result_new(f, ESEXP_RES_BOOL);
- r->value.bool = truth;
- } else {
- r = e_sexp_result_new(f, ESEXP_RES_ARRAY_PTR);
- array = r->value.ptrarray = g_ptr_array_new();
-
- /* We use a hash to map the uid numbers to uid strings as required by the search api */
- /* We use the summary's strings so we dont need to alloc more */
- uid_hash = g_hash_table_new(NULL, NULL);
- for (i = 0; i < s->summary->len; i++) {
- info = s->summary->pdata[i];
- uid = (char *)camel_message_info_uid(info);
- uidn = strtoul(uid, NULL, 10);
- g_hash_table_insert(uid_hash, GUINT_TO_POINTER(uidn), uid);
- }
-
- uidp = (guint32 *)mr->matches->data;
- j = mr->matches->len;
- for (i=0;i<j && !truth;i++) {
- uid = g_hash_table_lookup(uid_hash, GUINT_TO_POINTER(*uidp++));
- if (uid)
- g_ptr_array_add(array, uid);
- }
-
- g_hash_table_destroy(uid_hash);
- }
- }
-
- return r;
-}