From 1593182b1ca1a76dbf65b5ba1700f1f0d56e097d Mon Sep 17 00:00:00 2001 From: Michael Zucci Date: Wed, 15 Nov 2000 03:04:12 +0000 Subject: Initial cut for local provider, to handle mh/mailbox/maildir at least. Checking in to make a backup. svn path=/trunk/; revision=6575 --- camel/providers/local/camel-mh-summary.c | 320 +++++++++++++++++++++++++++++++ 1 file changed, 320 insertions(+) create mode 100644 camel/providers/local/camel-mh-summary.c (limited to 'camel/providers/local/camel-mh-summary.c') diff --git a/camel/providers/local/camel-mh-summary.c b/camel/providers/local/camel-mh-summary.c new file mode 100644 index 0000000000..b6b31664b4 --- /dev/null +++ b/camel/providers/local/camel-mh-summary.c @@ -0,0 +1,320 @@ +/* + * Copyright (C) 2000 Helix Code Inc. + * + * Authors: Not Zed + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library 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 Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include "camel-mh-summary.h" +#include + +#include +#include +#include +#include +#include +#include + +#include +#include + +#include + +#define d(x) (printf("%s(%d): ", __FILE__, __LINE__),(x)) + +#define CAMEL_MH_SUMMARY_VERSION (0x2000) + +static CamelMessageInfo *message_info_new(CamelFolderSummary *, struct _header_raw *); + +static int mh_summary_check(CamelLocalSummary *cls, CamelFolderChangeInfo *changeinfo, CamelException *ex); +static int mh_summary_sync(CamelLocalSummary *cls, gboolean expunge, CamelFolderChangeInfo *changeinfo, CamelException *ex); +/*static int mh_summary_add(CamelLocalSummary *cls, CamelMimeMessage *msg, CamelMessageInfo *info, CamelFolderChangeInfo *, CamelException *ex);*/ + +static char *mh_summary_next_uid_string(CamelFolderSummary *s); + +static void camel_mh_summary_class_init (CamelMhSummaryClass *class); +static void camel_mh_summary_init (CamelMhSummary *gspaper); +static void camel_mh_summary_finalise (CamelObject *obj); + +#define _PRIVATE(x) (((CamelMhSummary *)(x))->priv) + +struct _CamelMhSummaryPrivate { + char *current_uid; +}; + +static CamelLocalSummaryClass *parent_class; + +CamelType +camel_mh_summary_get_type (void) +{ + static CamelType type = CAMEL_INVALID_TYPE; + + if (type == CAMEL_INVALID_TYPE) { + type = camel_type_register(camel_local_summary_get_type (), "CamelMhSummary", + sizeof(CamelMhSummary), + sizeof(CamelMhSummaryClass), + (CamelObjectClassInitFunc)camel_mh_summary_class_init, + NULL, + (CamelObjectInitFunc)camel_mh_summary_init, + (CamelObjectFinalizeFunc)camel_mh_summary_finalise); + } + + return type; +} + +static void +camel_mh_summary_class_init (CamelMhSummaryClass *class) +{ + CamelFolderSummaryClass *sklass = (CamelFolderSummaryClass *) class; + CamelLocalSummaryClass *lklass = (CamelLocalSummaryClass *)class; + + parent_class = (CamelLocalSummaryClass *)camel_type_get_global_classfuncs(camel_local_summary_get_type ()); + + /* override methods */ + sklass->message_info_new = message_info_new; + sklass->next_uid_string = mh_summary_next_uid_string; + + lklass->check = mh_summary_check; + lklass->sync = mh_summary_sync; + /*lklass->add = mh_summary_add;*/ +} + +static void +camel_mh_summary_init (CamelMhSummary *o) +{ + struct _CamelFolderSummary *s = (CamelFolderSummary *) o; + + o->priv = g_malloc0(sizeof(*o->priv)); + /* set unique file version */ + s->version += CAMEL_MH_SUMMARY_VERSION; +} + +static void +camel_mh_summary_finalise(CamelObject *obj) +{ + CamelMhSummary *o = (CamelMhSummary *)obj; + + g_free(o->priv); +} + +/** + * camel_mh_summary_new: + * + * Create a new CamelMhSummary object. + * + * Return value: A new #CamelMhSummary object. + **/ +CamelMhSummary *camel_mh_summary_new (const char *filename, const char *mhdir, ibex *index) +{ + CamelMhSummary *o = (CamelMhSummary *)camel_object_new(camel_mh_summary_get_type ()); + + camel_local_summary_construct((CamelLocalSummary *)o, filename, mhdir, index); + return o; +} + +static CamelMessageInfo *message_info_new(CamelFolderSummary * s, struct _header_raw *h) +{ + CamelMessageInfo *mi; + /*CamelMhSummary *mhs = (CamelMhSummary *)s;*/ + + mi = ((CamelFolderSummaryClass *) parent_class)->message_info_new(s, h); + /* hmm, this isn't quite right */ + if (mi) { + /*mi->uid = mh_summary_next_uid_string(s);*/ + } + + return mi; +} + +static char *mh_summary_next_uid_string(CamelFolderSummary *s) +{ + CamelMhSummary *mhs = (CamelMhSummary *)s; + CamelLocalSummary *cls = (CamelLocalSummary *)s; + int fd = -1; + guint32 uid; + char *name = NULL; + + /* if we are working to add an existing file, then use current_uid */ + if (mhs->priv->current_uid) + return g_strdup(mhs->priv->current_uid); + + /* else scan for one - and create it too, to make sure */ + do { + g_free(name); + close(fd); + uid = camel_folder_summary_next_uid(s); + name = g_strdup_printf("%s/%u", cls->folder_path, uid); + /* O_EXCL isn't guaranteed, sigh. Oh well, bad luck, mh has problems anyway */ + fd = open(name, O_WRONLY|O_CREAT|O_EXCL, 0600); + } while (fd == -1 && errno == EEXIST); + + close(fd); + + return g_strdup_printf("%u", uid); +} + +static int camel_mh_summary_add(CamelLocalSummary *cls, const char *name, int forceindex) +{ + CamelMhSummary *mhs = (CamelMhSummary *)cls; + char *filename = g_strdup_printf("%s/%s", cls->folder_path, name); + int fd; + CamelMimeParser *mp; + + d(printf("summarising: %s\n", name)); + + fd = open(filename, O_RDONLY); + if (fd == -1) { + g_warning("Cannot summarise/index: %s: %s", filename, strerror(errno)); + g_free(filename); + return -1; + } + mp = camel_mime_parser_new(); + camel_mime_parser_scan_from(mp, FALSE); + camel_mime_parser_init_with_fd(mp, fd); + if (cls->index && (forceindex || !ibex_contains_name(cls->index, (char *)name))) { + d(printf("forcing indexing of message content\n")); + camel_folder_summary_set_index((CamelFolderSummary *)mhs, cls->index); + } else { + camel_folder_summary_set_index((CamelFolderSummary *)mhs, NULL); + } + mhs->priv->current_uid = (char *)name; + camel_folder_summary_add_from_parser((CamelFolderSummary *)mhs, mp); + camel_object_unref((CamelObject *)mp); + mhs->priv->current_uid = NULL; + camel_folder_summary_set_index((CamelFolderSummary *)mhs, NULL); + g_free(filename); + return 0; +} + +static void +remove_summary(char *key, CamelMessageInfo *info, CamelLocalSummary *cls) +{ + d(printf("removing message %s from summary\n", key)); + if (cls->index) + ibex_unindex(cls->index, info->uid); + camel_folder_summary_remove((CamelFolderSummary *)cls, info); +} + +static int +mh_summary_check(CamelLocalSummary *cls, CamelFolderChangeInfo *changeinfo, CamelException *ex) +{ + DIR *dir; + struct dirent *d; + char *p, c; + CamelMessageInfo *info; + GHashTable *left; + int i, count; + int forceindex; + + /* FIXME: Handle changeinfo */ + + d(printf("checking summary ...\n")); + + /* scan the directory, check for mail files not in the index, or index entries that + no longer exist */ + dir = opendir(cls->folder_path); + if (dir == NULL) { + camel_exception_setv(ex, 1, "Cannot open MH directory path: %s: %s", cls->folder_path, strerror(errno)); + return -1; + } + + /* keeps track of all uid's that have not been processed */ + left = g_hash_table_new(g_str_hash, g_str_equal); + count = camel_folder_summary_count((CamelFolderSummary *)cls); + forceindex = count == 0; + for (i=0;iuid, info); + } + } + + while ( (d = readdir(dir)) ) { + /* FIXME: also run stat to check for regular file */ + p = d->d_name; + while ( (c = *p++) ) { + if (!isdigit(c)) + break; + } + if (c==0) { + info = camel_folder_summary_uid((CamelFolderSummary *)cls, d->d_name); + if (info == NULL || (cls->index && (!ibex_contains_name(cls->index, d->d_name)))) { + /* need to add this file to the summary */ + if (info != NULL) { + g_hash_table_remove(left, info->uid); + camel_folder_summary_remove((CamelFolderSummary *)cls, info); + } + camel_mh_summary_add(cls, d->d_name, forceindex); + } else { + g_hash_table_remove(left, info->uid); + } + } + } + closedir(dir); + g_hash_table_foreach(left, (GHFunc)remove_summary, cls); + g_hash_table_destroy(left); + + /* FIXME: move this up a class */ + + /* force a save of the index, just to make sure */ + /* note this could be expensive so possibly shouldn't be here + as such */ + if (cls->index) { + ibex_save(cls->index); + } + + return 0; +} + + + +/* sync the summary with the ondisk files. + It doesnt store the state in the file, the summary only, == MUCH faster */ +static int +mh_summary_sync(CamelLocalSummary *cls, gboolean expunge, CamelFolderChangeInfo *changes, CamelException *ex) +{ + int count, i; + CamelMessageInfo *info; + char *name; + + d(printf("summary_sync(expunge=%s)\n", expunge?"true":"false")); + + if (cls->index) { + ibex_save(cls->index); + } + if (!expunge) + return 0; + + count = camel_folder_summary_count((CamelFolderSummary *)cls); + for (i=count-1;i>=0;i--) { + info = camel_folder_summary_index((CamelFolderSummary *)cls, i); + if (info && info->flags & CAMEL_MESSAGE_DELETED) { + name = g_strdup_printf("%s/%s", cls->folder_path, info->uid); + d(printf("deleting %s\n", name)); + if (unlink(name) == 0 || errno==ENOENT) { + + /* FIXME: put this in folder_summary::remove()? */ + if (cls->index) + ibex_unindex(cls->index, info->uid); + + camel_folder_change_info_remove_uid(changes, info->uid); + camel_folder_summary_remove((CamelFolderSummary *)cls, info); + } + } + } + return 0; +} + -- cgit v1.2.3