diff options
Diffstat (limited to 'camel/camel-folder-search.c')
| -rw-r--r-- | camel/camel-folder-search.c | 1110 |
1 files changed, 0 insertions, 1110 deletions
diff --git a/camel/camel-folder-search.c b/camel/camel-folder-search.c deleted file mode 100644 index bc9e13cb34..0000000000 --- a/camel/camel-folder-search.c +++ /dev/null @@ -1,1110 +0,0 @@ -/* - * Copyright (C) 2000 Helix Code Inc. - * - * Authors: Michael Zucchi <notzed@helixcode.com> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or (at your option) any later version. - * - * 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 - */ - -/* This is a helper class for folders to implement the search function. - It implements enough to do basic searches on folders that can provide - an in-memory summary and a body index. */ - -#include <stdio.h> -#include <string.h> -#include <ctype.h> -#include <glib.h> -#include <sys/types.h> -#include <regex.h> - -#include <gal/widgets/e-unicode.h> -#include "camel-folder-search.h" -#include "string-utils.h" - -#include "camel-exception.h" -#include "camel-medium.h" -#include "camel-multipart.h" -#include "camel-mime-message.h" -#include "camel-stream-mem.h" -#include "e-util/e-memory.h" - -#define d(x) -#define r(x) - -struct _CamelFolderSearchPrivate { - GHashTable *mempool_hash; -}; - -#define _PRIVATE(o) (((CamelFolderSearch *)(o))->priv) - -static ESExpResult *search_header_contains(struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *search); -static ESExpResult *search_header_matches(struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *search); -static ESExpResult *search_header_starts_with(struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *search); -static ESExpResult *search_header_ends_with(struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *search); -static ESExpResult *search_header_exists(struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *search); -static ESExpResult *search_match_all(struct _ESExp *f, int argc, struct _ESExpTerm **argv, CamelFolderSearch *search); -static ESExpResult *search_body_contains(struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *search); -static ESExpResult *search_user_flag(struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *s); -static ESExpResult *search_user_tag(struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *s); -static ESExpResult *search_system_flag(struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *s); -static ESExpResult *search_get_sent_date(struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *s); -static ESExpResult *search_get_received_date(struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *s); -static ESExpResult *search_get_current_date(struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *s); - -static ESExpResult *search_dummy(struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *search); - -static void camel_folder_search_class_init (CamelFolderSearchClass *klass); -static void camel_folder_search_init (CamelFolderSearch *obj); -static void camel_folder_search_finalize (CamelObject *obj); - -static CamelObjectClass *camel_folder_search_parent; - -static void -camel_folder_search_class_init (CamelFolderSearchClass *klass) -{ - camel_folder_search_parent = camel_type_get_global_classfuncs (camel_object_get_type ()); - - klass->match_all = search_match_all; - klass->body_contains = search_body_contains; - klass->header_contains = search_header_contains; - klass->header_matches = search_header_matches; - klass->header_starts_with = search_header_starts_with; - klass->header_ends_with = search_header_ends_with; - klass->header_exists = search_header_exists; - klass->user_tag = search_user_tag; - klass->user_flag = search_user_flag; - klass->system_flag = search_system_flag; - klass->get_sent_date = search_get_sent_date; - klass->get_received_date = search_get_received_date; - klass->get_current_date = search_get_current_date; -} - -static void -camel_folder_search_init (CamelFolderSearch *obj) -{ - struct _CamelFolderSearchPrivate *p; - - p = _PRIVATE(obj) = g_malloc0(sizeof(*p)); - - obj->sexp = e_sexp_new(); - - /* use a hash of mempools to associate the returned uid lists with - the backing mempool. yes pretty weird, but i didn't want to change - the api just yet */ - - p->mempool_hash = g_hash_table_new(0, 0); -} - -static void -free_mempool(void *key, void *value, void *data) -{ - GPtrArray *uids = key; - EMemPool *pool = value; - - g_warning("Search closed with outstanding result unfreed: %p", uids); - - g_ptr_array_free(uids, TRUE); - e_mempool_destroy(pool); -} - -static void -camel_folder_search_finalize (CamelObject *obj) -{ - CamelFolderSearch *search = (CamelFolderSearch *)obj; - struct _CamelFolderSearchPrivate *p = _PRIVATE(obj); - - if (search->sexp) - e_sexp_unref(search->sexp); - - g_free(search->last_search); - g_hash_table_foreach(p->mempool_hash, free_mempool, obj); - g_hash_table_destroy(p->mempool_hash); - g_free(p); -} - -CamelType -camel_folder_search_get_type (void) -{ - static CamelType type = CAMEL_INVALID_TYPE; - - if (type == CAMEL_INVALID_TYPE) { - type = camel_type_register (camel_object_get_type (), "CamelFolderSearch", - sizeof (CamelFolderSearch), - sizeof (CamelFolderSearchClass), - (CamelObjectClassInitFunc) camel_folder_search_class_init, - NULL, - (CamelObjectInitFunc) camel_folder_search_init, - (CamelObjectFinalizeFunc) camel_folder_search_finalize); - } - - return type; -} - -#ifdef offsetof -#define CAMEL_STRUCT_OFFSET(type, field) ((gint) offsetof (type, field)) -#else -#define CAMEL_STRUCT_OFFSET(type, field) ((gint) ((gchar*) &((type *) 0)->field)) -#endif - -struct { - char *name; - int offset; - int flags; /* 0x02 = immediate, 0x01 = always enter */ -} builtins[] = { - /* these have default implementations in e-sexp */ - { "and", CAMEL_STRUCT_OFFSET(CamelFolderSearchClass, and), 2 }, - { "or", CAMEL_STRUCT_OFFSET(CamelFolderSearchClass, or), 2 }, - { "not", CAMEL_STRUCT_OFFSET(CamelFolderSearchClass, not), 2 }, - { "<", CAMEL_STRUCT_OFFSET(CamelFolderSearchClass, lt), 2 }, - { ">", CAMEL_STRUCT_OFFSET(CamelFolderSearchClass, gt), 2 }, - { "=", CAMEL_STRUCT_OFFSET(CamelFolderSearchClass, eq), 2 }, - - /* these we have to use our own default if there is none */ - /* they should all be defined in the language? so it poarses, or should they not?? */ - { "match-all", CAMEL_STRUCT_OFFSET(CamelFolderSearchClass, match_all), 3 }, - { "body-contains", CAMEL_STRUCT_OFFSET(CamelFolderSearchClass, body_contains), 1 }, - { "header-contains", CAMEL_STRUCT_OFFSET(CamelFolderSearchClass, header_contains), 1 }, - { "header-matches", CAMEL_STRUCT_OFFSET(CamelFolderSearchClass, header_matches), 1 }, - { "header-starts-with", CAMEL_STRUCT_OFFSET(CamelFolderSearchClass, header_starts_with), 1 }, - { "header-ends-with", CAMEL_STRUCT_OFFSET(CamelFolderSearchClass, header_ends_with), 1 }, - { "header-exists", CAMEL_STRUCT_OFFSET(CamelFolderSearchClass, header_exists), 1 }, - { "user-tag", CAMEL_STRUCT_OFFSET(CamelFolderSearchClass, user_tag), 1 }, - { "user-flag", CAMEL_STRUCT_OFFSET(CamelFolderSearchClass, user_flag), 1 }, - { "system-flag", CAMEL_STRUCT_OFFSET(CamelFolderSearchClass, system_flag), 1 }, - { "get-sent-date", CAMEL_STRUCT_OFFSET(CamelFolderSearchClass, get_sent_date), 1 }, - { "get-received-date", CAMEL_STRUCT_OFFSET(CamelFolderSearchClass, get_received_date), 1 }, - { "get-current-date", CAMEL_STRUCT_OFFSET(CamelFolderSearchClass, get_current_date), 1 }, -}; - -void -camel_folder_search_construct (CamelFolderSearch *search) -{ - int i; - CamelFolderSearchClass *klass = (CamelFolderSearchClass *)CAMEL_OBJECT_GET_CLASS(search); - - for (i=0;i<sizeof(builtins)/sizeof(builtins[0]);i++) { - void *func; - /* c is sure messy sometimes */ - func = *((void **)(((char *)klass)+builtins[i].offset)); - if (func == NULL && builtins[i].flags&1) { - g_warning("Search class doesn't implement '%s' method: %s", builtins[i].name, camel_type_to_name(CAMEL_OBJECT_GET_CLASS(search)->s.type)); - func = (void *)search_dummy; - } - if (func != NULL) { - if (builtins[i].flags&2) { - e_sexp_add_ifunction(search->sexp, 0, builtins[i].name, (ESExpIFunc *)func, search); - } else { - e_sexp_add_function(search->sexp, 0, builtins[i].name, (ESExpFunc *)func, search); - } - } - } -} - -/** - * camel_folder_search_new: - * - * Create a new CamelFolderSearch object. - * - * A CamelFolderSearch is a subclassable, extensible s-exp - * evaluator which enforces a particular set of s-expressions. - * Particular methods may be overriden by an implementation to - * implement a search for any sort of backend. - * - * Return value: A new CamelFolderSearch widget. - **/ -CamelFolderSearch * -camel_folder_search_new (void) -{ - CamelFolderSearch *new = CAMEL_FOLDER_SEARCH ( camel_object_new (camel_folder_search_get_type ())); - - camel_folder_search_construct(new); - return new; -} - -/** - * camel_folder_search_set_folder: - * @search: - * @folder: A folder. - * - * Set the folder attribute of the search. This is currently unused, but - * could be used to perform a slow-search when indexes and so forth are not - * available. Or for use by subclasses. - **/ -void -camel_folder_search_set_folder(CamelFolderSearch *search, CamelFolder *folder) -{ - search->folder = folder; -} - -/** - * camel_folder_search_set_summary: - * @search: - * @summary: An array of CamelMessageInfo pointers. - * - * Set the array of summary objects representing the span of the search. - * - * If this is not set, then a subclass must provide the functions - * for searching headers and for the match-all operator. - **/ -void -camel_folder_search_set_summary(CamelFolderSearch *search, GPtrArray *summary) -{ - search->summary = summary; -} - -/** - * camel_folder_search_set_body_index: - * @search: - * @index: - * - * Set the index (ibex) representing the contents of all messages - * in this folder. If this is not set, then the folder implementation - * should sub-class the CamelFolderSearch and provide its own - * body-contains function. - **/ -void -camel_folder_search_set_body_index(CamelFolderSearch *search, ibex *index) -{ - search->body_index = index; -} - -/** - * camel_folder_search_execute_expression: - * @search: - * @expr: - * @ex: - * - * Execute the search expression @expr, returning an array of - * all matches as a GPtrArray of uid's of matching messages. - * - * Note that any settings such as set_body_index(), set_folder(), - * and so on are reset to #NULL once the search has completed. - * - * TODO: The interface should probably return summary items instead - * (since they are much more useful to any client). - * - * Return value: A GPtrArray of strings of all matching messages. - * This must only be freed by camel_folder_search_free_result. - **/ -GPtrArray * -camel_folder_search_execute_expression(CamelFolderSearch *search, const char *expr, CamelException *ex) -{ - ESExpResult *r; - GPtrArray *matches = g_ptr_array_new (); - int i; - GHashTable *results; - EMemPool *pool; - struct _CamelFolderSearchPrivate *p = _PRIVATE(search); - - /* only re-parse if the search has changed */ - if (search->last_search == NULL - || strcmp(search->last_search, expr)) { - e_sexp_input_text(search->sexp, expr, strlen(expr)); - e_sexp_parse(search->sexp); - g_free(search->last_search); - search->last_search = g_strdup(expr); - } - r = e_sexp_eval(search->sexp); - - /* now create a folder summary to return?? */ - if (r - && r->type == ESEXP_RES_ARRAY_PTR) { - d(printf("got result ...\n")); - /* we use a mempool to store the strings, packed in tight as possible, and freed together */ - /* because the strings are often short (like <8 bytes long), we would be wasting appx 50% - of memory just storing the size tag that malloc assigns us and alignment padding, so this - gets around that (and is faster to allocate and free as a bonus) */ - pool = e_mempool_new(512, 256, E_MEMPOOL_ALIGN_BYTE); - if (search->summary) { - /* reorder result in summary order */ - results = g_hash_table_new(g_str_hash, g_str_equal); - for (i=0;i<r->value.ptrarray->len;i++) { - d(printf("adding match: %s\n", (char *)g_ptr_array_index(r->value.ptrarray, i))); - g_hash_table_insert(results, g_ptr_array_index(r->value.ptrarray, i), (void *)1); - } - for (i=0;i<search->summary->len;i++) { - CamelMessageInfo *info = g_ptr_array_index(search->summary, i); - char *uid = (char *)camel_message_info_uid(info); - if (g_hash_table_lookup(results, uid)) { - g_ptr_array_add(matches, e_mempool_strdup(pool, uid)); - } - } - g_hash_table_destroy(results); - } else { - for (i=0;i<r->value.ptrarray->len;i++) { - d(printf("adding match: %s\n", (char *)g_ptr_array_index(r->value.ptrarray, i))); - g_ptr_array_add(matches, e_mempool_strdup(pool, g_ptr_array_index(r->value.ptrarray, i))); - } - } - e_sexp_result_free(r); - /* instead of putting the mempool_hash in the structure, we keep the api clean by - putting a reference to it in a hashtable. Lets us do some debugging and catch - unfree'd results as well. */ - g_hash_table_insert(p->mempool_hash, matches, pool); - } else { - printf("no result!\n"); - } - - search->folder = NULL; - search->summary = NULL; - search->current = NULL; - search->body_index = NULL; - - return matches; -} - -/** - * camel_folder_search_match_expression: - * @search: - * @expr: - * @info: - * @ex: - * - * Returns #TRUE if the expression matches the specific message info @info. - * Note that the folder and index may need to be set for body searches to - * operate as well. - * - * Return value: - **/ -gboolean -camel_folder_search_match_expression(CamelFolderSearch *search, const char *expr, const CamelMessageInfo *info, CamelException *ex) -{ - GPtrArray *uids; - int ret = FALSE; - - search->match1 = (CamelMessageInfo *)info; - - uids = camel_folder_search_execute_expression(search, expr, ex); - if (uids) { - if (uids->len == 1) - ret = TRUE; - camel_folder_search_free_result(search, uids); - } - search->match1 = NULL; - - return ret; -} - -void camel_folder_search_free_result(CamelFolderSearch *search, GPtrArray *result) -{ - int i; - struct _CamelFolderSearchPrivate *p = _PRIVATE(search); - EMemPool *pool; - - pool = g_hash_table_lookup(p->mempool_hash, result); - if (pool) { - e_mempool_destroy(pool); - g_hash_table_remove(p->mempool_hash, result); - } else { - for (i=0;i<result->len;i++) - g_free(g_ptr_array_index(result, i)); - } - g_ptr_array_free(result, TRUE); -} - - - - -/* dummy function, returns false always, or an empty match array */ -static ESExpResult * -search_dummy(struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *search) -{ - ESExpResult *r; - - if (search->current == NULL) { - r = e_sexp_result_new(ESEXP_RES_BOOL); - r->value.bool = FALSE; - } else { - r = e_sexp_result_new(ESEXP_RES_ARRAY_PTR); - r->value.ptrarray = g_ptr_array_new(); - } - - return r; -} - -static ESExpResult * -search_match_all(struct _ESExp *f, int argc, struct _ESExpTerm **argv, CamelFolderSearch *search) -{ - int i; - ESExpResult *r, *r1; - - if (argc>1) { - g_warning("match-all only takes a single argument, other arguments ignored"); - } - r = e_sexp_result_new(ESEXP_RES_ARRAY_PTR); - r->value.ptrarray = g_ptr_array_new(); - - /* we are only matching a single message? */ - if (search->match1) { - search->current = search->match1; - - if (argc>0) { - r1 = e_sexp_term_eval(f, argv[0]); - if (r1->type == ESEXP_RES_BOOL) { - if (r1->value.bool) - g_ptr_array_add(r->value.ptrarray, (char *)camel_message_info_uid(search->current)); - } else { - g_warning("invalid syntax, matches require a single bool result"); - } - e_sexp_result_free(r1); - } else { - g_ptr_array_add(r->value.ptrarray, (char *)camel_message_info_uid(search->current)); - } - search->current = NULL; - - return r; - } - - if (search->summary == NULL) { - /* TODO: make it work - e.g. use the folder and so forth for a slower search */ - g_warning("No summary supplied, match-all doesn't work with no summary"); - return r; - } - - /* TODO: Could make this a bit faster in the uncommon case (of match-everything) */ - for (i=0;i<search->summary->len;i++) { - search->current = g_ptr_array_index(search->summary, i); - if (argc>0) { - r1 = e_sexp_term_eval(f, argv[0]); - if (r1->type == ESEXP_RES_BOOL) { - if (r1->value.bool) - g_ptr_array_add(r->value.ptrarray, (char *)camel_message_info_uid(search->current)); - } else { - g_warning("invalid syntax, matches require a single bool result"); - } - e_sexp_result_free(r1); - } else { - g_ptr_array_add(r->value.ptrarray, (char *)camel_message_info_uid(search->current)); - } - } - search->current = NULL; - - return r; -} - -static ESExpResult * -search_header_contains(struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *search) -{ - ESExpResult *r; - int truth = FALSE; - - r(printf("executing header-contains\n")); - - /* are we inside a match-all? */ - if (search->current && argc>1 - && argv[0]->type == ESEXP_RES_STRING) { - char *headername; - const char *header = NULL; - char strbuf[32]; - int i; - - /* only a subset of headers are supported .. */ - headername = argv[0]->value.string; - if (!strcasecmp(headername, "subject")) { - header = camel_message_info_subject(search->current); - } else if (!strcasecmp(headername, "date")) { - /* FIXME: not a very useful form of the date */ - sprintf(strbuf, "%d", (int)search->current->date_sent); - header = strbuf; - } else if (!strcasecmp(headername, "from")) { - header = camel_message_info_from(search->current); - } else if (!strcasecmp(headername, "to")) { - header = camel_message_info_to(search->current); - } else if (!strcasecmp(headername, "cc")) { - header = camel_message_info_cc(search->current); - } else { - g_warning("Performing query on unknown header: %s", headername); - } - - if (header) { - /* performs an OR of all words */ - for (i=1;i<argc && !truth;i++) { - if (argv[i]->type == ESEXP_RES_STRING - && e_utf8_strstrcase (header, argv[i]->value.string)) { - r(printf("%s got a match with %s of %s\n", - camel_message_info_uid(search->current), - header, argv[i]->value.string)); - truth = TRUE; - break; - } - } - } - } - /* TODO: else, find all matches */ - - r = e_sexp_result_new(ESEXP_RES_BOOL); - r->value.bool = truth; - - return r; -} - -static ESExpResult * -search_header_matches(struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *search) -{ - ESExpResult *r; - - r(printf ("executing header-matches\n")); - - if (search->current && argc == 2) { - char *headername; - const char *header = NULL; - char strbuf[32]; - gboolean truth = FALSE; - - /* only a subset of headers are supported .. */ - headername = argv[0]->value.string; - if (!strcasecmp (headername, "subject")) { - header = camel_message_info_subject (search->current); - } else if (!strcasecmp (headername, "date")) { - /* FIXME: not a very useful form of the date */ - sprintf (strbuf, "%d", (int)search->current->date_sent); - header = strbuf; - } else if (!strcasecmp (headername, "from")) { - header = camel_message_info_from (search->current); - } else if (!strcasecmp (headername, "to")) { - header = camel_message_info_to (search->current); - } else if (!strcasecmp (headername, "cc")) { - header = camel_message_info_cc (search->current); - } else { - g_warning ("Performing query on unknown header: %s", headername); - } - - if (header && argv[1]->type == ESEXP_RES_STRING) { - /* danw says to use search-engine style matching... - * This means that if the search match string is - * lowercase then compare case-insensitive else - * compare case-sensitive. */ - gboolean is_lowercase = TRUE; - char *match = argv[1]->value.string; - char *c; - - /* remove any leading white space... */ - for ( ; *header && isspace (*header); header++); - - for (c = match; *c; c++) { - if (isalpha (*c) && isupper (*c)) { - is_lowercase = FALSE; - break; - } - } - - if (is_lowercase) { - if (!g_strcasecmp (header, match)) - truth = TRUE; - } else { - if (!strcmp (header, match)) - truth = TRUE; - } - } - - r = e_sexp_result_new (ESEXP_RES_BOOL); - r->value.bool = truth; - } else { - r = e_sexp_result_new (ESEXP_RES_ARRAY_PTR); - r->value.ptrarray = g_ptr_array_new (); - } - - return r; -} - -static ESExpResult * -search_header_starts_with (struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *search) -{ - ESExpResult *r; - - r(printf ("executing header-starts-with\n")); - - if (search->current && argc == 2) { - char *headername, *match; - const char *header = NULL; - char strbuf[32]; - gboolean truth = FALSE; - - /* only a subset of headers are supported .. */ - headername = argv[0]->value.string; - if (!strcasecmp (headername, "subject")) { - header = camel_message_info_subject (search->current); - } else if (!strcasecmp (headername, "date")) { - /* FIXME: not a very useful form of the date */ - sprintf (strbuf, "%d", (int)search->current->date_sent); - header = strbuf; - } else if (!strcasecmp (headername, "from")) { - header = camel_message_info_from (search->current); - } else if (!strcasecmp (headername, "to")) { - header = camel_message_info_to (search->current); - } else if (!strcasecmp (headername, "cc")) { - header = camel_message_info_cc (search->current); - } else { - g_warning ("Performing query on unknown header: %s", headername); - } - - match = argv[1]->value.string; - - if (header && strlen (header) >= strlen (match)) { - /* danw says to use search-engine style matching... - * This means that if the search match string is - * lowercase then compare case-insensitive else - * compare case-sensitive. */ - gboolean is_lowercase = TRUE; - char *c; - - /* remove any leading white space... */ - for ( ; *header && isspace (*header); header++); - - for (c = match; *c; c++) { - if (isalpha (*c) && isupper (*c)) { - is_lowercase = FALSE; - break; - } - } - - if (is_lowercase) { - if (!g_strncasecmp (header, match, strlen (match))) - truth = TRUE; - } else { - if (!strncmp (header, match, strlen (match))) - truth = TRUE; - } - } - - r = e_sexp_result_new (ESEXP_RES_BOOL); - r->value.bool = truth; - } else { - r = e_sexp_result_new (ESEXP_RES_ARRAY_PTR); - r->value.ptrarray = g_ptr_array_new (); - } - - return r; -} - -static ESExpResult * -search_header_ends_with (struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *search) -{ - ESExpResult *r; - - r(printf ("executing header-ends-with\n")); - - if (search->current && argc == 2) { - char *headername, *match; - const char *header = NULL; - char strbuf[32]; - gboolean truth = FALSE; - - /* only a subset of headers are supported .. */ - headername = argv[0]->value.string; - if (!strcasecmp (headername, "subject")) { - header = camel_message_info_subject (search->current); - } else if (!strcasecmp (headername, "date")) { - /* FIXME: not a very useful form of the date */ - sprintf (strbuf, "%d", (int)search->current->date_sent); - header = strbuf; - } else if (!strcasecmp (headername, "from")) { - header = camel_message_info_from (search->current); - } else if (!strcasecmp (headername, "to")) { - header = camel_message_info_to (search->current); - } else if (!strcasecmp (headername, "cc")) { - header = camel_message_info_cc (search->current); - } else { - g_warning ("Performing query on unknown header: %s", headername); - } - - match = argv[1]->value.string; - - if (header && strlen (header) >= strlen (match)) { - /* danw says to use search-engine style matching... - * This means that if the search match string is - * lowercase then compare case-insensitive else - * compare case-sensitive. */ - gboolean is_lowercase = TRUE; - char *c, *end; - - /* remove any leading white space... */ - for ( ; *header && isspace (*header); header++); - - for (c = match; *c; c++) { - if (isalpha (*c) && isupper (*c)) { - is_lowercase = FALSE; - break; - } - } - - end = (char *) header + strlen (header) - strlen (match); - - if (is_lowercase) { - if (!g_strncasecmp (header, match, strlen (match))) - truth = TRUE; - } else { - if (!strncmp (header, match, strlen (match))) - truth = TRUE; - } - } - - r = e_sexp_result_new (ESEXP_RES_BOOL); - r->value.bool = truth; - } else { - r = e_sexp_result_new (ESEXP_RES_ARRAY_PTR); - r->value.ptrarray = g_ptr_array_new (); - } - - return r; -} - -static ESExpResult * -search_header_exists (struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *search) -{ - ESExpResult *r; - - r(printf ("executing header-exists\n")); - - if (search->current) { - const gchar *value = NULL; - - if (argc == 1 && argv[0]->type == ESEXP_RES_STRING) - value = camel_medium_get_header (CAMEL_MEDIUM (search->current), - argv[0]->value.string); - - r = e_sexp_result_new (ESEXP_RES_BOOL); - r->value.bool = value ? TRUE : FALSE; - } else { - r = e_sexp_result_new (ESEXP_RES_ARRAY_PTR); - r->value.ptrarray = g_ptr_array_new (); - } - - return r; -} - -/* this is just to OR results together */ -struct _glib_sux_donkeys { - int count; - GPtrArray *uids; -}; - -/* or, store all unique values */ -static void -g_lib_sux_htor(char *key, int value, struct _glib_sux_donkeys *fuckup) -{ - g_ptr_array_add(fuckup->uids, key); -} - -/* performs a 'slow' content-based match */ -static gboolean -message_body_contains(CamelDataWrapper *object, regex_t *pattern) -{ - CamelDataWrapper *containee; - int truth = FALSE; - int parts, i; - - containee = camel_medium_get_content_object(CAMEL_MEDIUM(object)); - - if (containee == NULL) - return FALSE; - - /* TODO: I find it odd that get_part and get_content_object do not - add a reference, probably need fixing for multithreading */ - - /* using the object types is more accurate than using the mime/types */ - if (CAMEL_IS_MULTIPART(containee)) { - parts = camel_multipart_get_number(CAMEL_MULTIPART(containee)); - for (i=0;i<parts && truth==FALSE;i++) { - CamelDataWrapper *part = (CamelDataWrapper *)camel_multipart_get_part(CAMEL_MULTIPART(containee), i); - if (part) { - truth = message_body_contains(part, pattern); - } - } - } else if (CAMEL_IS_MIME_MESSAGE(containee)) { - /* for messages we only look at its contents */ - truth = message_body_contains((CamelDataWrapper *)containee, pattern); - } else if (header_content_type_is(CAMEL_DATA_WRAPPER(containee)->mime_type, "text", "*")) { - /* for all other text parts, we look inside, otherwise we dont care */ - CamelStreamMem *mem = (CamelStreamMem *)camel_stream_mem_new(); - - camel_data_wrapper_write_to_stream(containee, (CamelStream *)mem); - camel_stream_write((CamelStream *)mem, "", 1); - truth = regexec(pattern, mem->buffer->data, 0, NULL, 0) == 0; - camel_object_unref((CamelObject *)mem); - } - return truth; -} - -/* builds the regex into pattern */ -static int -build_match_regex(regex_t *pattern, int argc, struct _ESExpResult **argv) -{ - GString *match = g_string_new(""); - int c, i, count=0, err; - char *word; - - /* build a regex pattern we can use to match the words, we OR them together */ - if (argc>1) - g_string_append_c(match, '('); - for (i=0;i<argc;i++) { - if (argv[i]->type == ESEXP_RES_STRING) { - if (count > 0) - g_string_append_c(match, '|'); - /* escape any special chars (not sure if this list is complete) */ - word = argv[i]->value.string; - while ((c = *word++)) { - if (strchr("*\\.()[]^$+", c) != NULL) { - g_string_append_c(match, '\\'); - } - g_string_append_c(match, c); - } - count++; - } else { - g_warning("Invalid type passed to body-contains match function"); - } - } - if (argc>1) - g_string_append_c(match, ')'); - err = regcomp(pattern, match->str, REG_EXTENDED|REG_ICASE|REG_NOSUB); - if (err != 0) { - char buffer[1024]; /* dont really care if its longer than this ... */ - - regerror(err, pattern, buffer, 1023); - g_warning("Internal error with search pattern: %s: %s", match->str, buffer); - regfree(pattern); - } - d(printf("Built regex: '%s'\n", match->str)); - g_string_free(match, TRUE); - return err; -} - -static int -match_message(CamelFolder *folder, const char *uid, regex_t *pattern) -{ - CamelMimeMessage *msg; - int truth = FALSE; - CamelException *ex; - - ex = camel_exception_new(); - msg = camel_folder_get_message(folder, uid, ex); - if (!camel_exception_is_set(ex) && msg!=NULL) { - truth = message_body_contains((CamelDataWrapper *)msg, pattern); - camel_object_unref((CamelObject *)msg); - } - camel_exception_free(ex); - return truth; -} - -static ESExpResult * -search_body_contains(struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *search) -{ - ESExpResult *r; - int i, j; - regex_t pattern; - - if (search->current) { - int truth = FALSE; - - r = e_sexp_result_new(ESEXP_RES_BOOL); - if (search->body_index) { - for (i=0;i<argc && !truth;i++) { - if (argv[i]->type == ESEXP_RES_STRING) { - truth = ibex_find_name(search->body_index, (char *)camel_message_info_uid(search->current), - argv[i]->value.string); - } else { - g_warning("Invalid type passed to body-contains match function"); - } - } - } else if (search->folder) { - /* we do a 'slow' direct search */ - if (build_match_regex(&pattern, argc, argv) == 0) { - truth = match_message(search->folder, camel_message_info_uid(search->current), &pattern); - regfree(&pattern); - } - } else { - g_warning("Cannot perform indexed body query with no index or folder set"); - } - r->value.bool = truth; - } else { - r = e_sexp_result_new(ESEXP_RES_ARRAY_PTR); - - if (search->body_index) { - if (argc==1) { - /* common case */ - r->value.ptrarray = ibex_find(search->body_index, argv[0]->value.string); - } else { - GHashTable *ht = g_hash_table_new(g_str_hash, g_str_equal); - GPtrArray *pa; - struct _glib_sux_donkeys lambdafoo; - - /* this sux, perform an or operation on the result(s) of each word */ - for (i=0;i<argc;i++) { - if (argv[i]->type == ESEXP_RES_STRING) { - pa = ibex_find(search->body_index, argv[i]->value.string); - for (j=0;j<pa->len;j++) { - g_hash_table_insert(ht, g_ptr_array_index(pa, j), (void *)1); - } - g_ptr_array_free(pa, FALSE); - } else { - g_warning("invalid type passed to body-contains"); - } - } - lambdafoo.uids = g_ptr_array_new(); - g_hash_table_foreach(ht, (GHFunc)g_lib_sux_htor, &lambdafoo); - r->value.ptrarray = lambdafoo.uids; - g_hash_table_destroy(ht); - } - } else if (search->folder) { - /* do a slow search */ - r->value.ptrarray = g_ptr_array_new(); - if (build_match_regex(&pattern, argc, argv) == 0) { - if (search->summary) { - for (i=0;i<search->summary->len;i++) { - CamelMessageInfo *info = g_ptr_array_index(search->summary, i); - - if (match_message(search->folder, camel_message_info_uid(info), &pattern)) - g_ptr_array_add(r->value.ptrarray, (char *)camel_message_info_uid(info)); - } - } /* else? we could always get the summary from the folder, but then - we need to free it later somehow */ - regfree(&pattern); - } - } else { - g_warning("Cannot perform indexed body query with no index or folder set"); - r->value.ptrarray = g_ptr_array_new(); - } - } - - return r; -} - -static ESExpResult * -search_user_flag(struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *search) -{ - ESExpResult *r; - int i; - - r(printf("executing user-flag\n")); - - /* are we inside a match-all? */ - if (search->current) { - int truth = FALSE; - /* performs an OR of all words */ - for (i=0;i<argc && !truth;i++) { - if (argv[i]->type == ESEXP_RES_STRING - && camel_flag_get(&search->current->user_flags, argv[i]->value.string)) { - truth = TRUE; - break; - } - } - r = e_sexp_result_new(ESEXP_RES_BOOL); - r->value.bool = truth; - } else { - r = e_sexp_result_new(ESEXP_RES_ARRAY_PTR); - r->value.ptrarray = g_ptr_array_new(); - } - - return r; -} - -static ESExpResult * -search_system_flag (struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *search) -{ - ESExpResult *r; - - r(printf ("executing system-flag\n")); - - if (search->current) { - gboolean truth = FALSE; - - if (argc == 1) - truth = camel_system_flag_get (search->current->flags, argv[0]->value.string); - - r = e_sexp_result_new (ESEXP_RES_BOOL); - r->value.bool = truth; - } else { - r = e_sexp_result_new (ESEXP_RES_ARRAY_PTR); - r->value.ptrarray = g_ptr_array_new (); - } - - return r; -} - -static ESExpResult *search_user_tag(struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *search) -{ - ESExpResult *r; - - r(printf("executing user-tag\n")); - - /* are we inside a match-all? */ - if (search->current) { - const char *value = NULL; - if (argc == 1) { - value = camel_tag_get(&search->current->user_tags, argv[0]->value.string); - } - r = e_sexp_result_new(ESEXP_RES_STRING); - r->value.string = g_strdup(value?value:""); - } else { - r = e_sexp_result_new(ESEXP_RES_ARRAY_PTR); - r->value.ptrarray = g_ptr_array_new(); - } - - return r; -} - -static ESExpResult * -search_get_sent_date(struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *s) -{ - ESExpResult *r; - - r(printf("executing get-sent-date\n")); - - /* are we inside a match-all? */ - if (s->current) { - r = e_sexp_result_new (ESEXP_RES_INT); - - r->value.number = s->current->date_sent; - } else { - r = e_sexp_result_new (ESEXP_RES_ARRAY_PTR); - r->value.ptrarray = g_ptr_array_new (); - } - - return r; -} - -static ESExpResult * -search_get_received_date(struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *s) -{ - ESExpResult *r; - - r(printf("executing get-received-date\n")); - - /* are we inside a match-all? */ - if (s->current) { - r = e_sexp_result_new (ESEXP_RES_INT); - - r->value.number = s->current->date_received; - } else { - r = e_sexp_result_new (ESEXP_RES_ARRAY_PTR); - r->value.ptrarray = g_ptr_array_new (); - } - - return r; -} - -static ESExpResult * -search_get_current_date(struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *s) -{ - ESExpResult *r; - - r(printf("executing get-current-date\n")); - - r = e_sexp_result_new (ESEXP_RES_INT); - r->value.number = time (NULL); - return r; -} - |