diff options
Diffstat (limited to 'camel/providers/nntp/camel-nntp-summary.c')
| -rw-r--r-- | camel/providers/nntp/camel-nntp-summary.c | 584 |
1 files changed, 0 insertions, 584 deletions
diff --git a/camel/providers/nntp/camel-nntp-summary.c b/camel/providers/nntp/camel-nntp-summary.c deleted file mode 100644 index 2a9669d697..0000000000 --- a/camel/providers/nntp/camel-nntp-summary.c +++ /dev/null @@ -1,584 +0,0 @@ -/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; fill-column: 160 -*- */ -/* - * Copyright (C) 2000 Ximian Inc. - * - * Authors: Michael Zucchi <notzed@ximian.com> - * - * 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 <ctype.h> -#include <sys/stat.h> -#include <sys/uio.h> -#include <unistd.h> -#include <errno.h> -#include <string.h> -#include <stdlib.h> - -#include "camel/camel-file-utils.h" -#include "camel/camel-mime-message.h" -#include "camel/camel-stream-null.h" -#include "camel/camel-operation.h" -#include "camel/camel-data-cache.h" - -#include "camel-nntp-summary.h" -#include "camel-nntp-folder.h" -#include "camel-nntp-store.h" -#include "camel-nntp-stream.h" - -#define w(x) -#define io(x) -#define d(x) /*(printf("%s(%d): ", __FILE__, __LINE__),(x))*/ -extern int camel_verbose_debug; -#define dd(x) (camel_verbose_debug?(x):0) - -#define CAMEL_NNTP_SUMMARY_VERSION (0x200) - -static int xover_setup(CamelNNTPSummary *cns, CamelException *ex); -static int add_range_xover(CamelNNTPSummary *cns, unsigned int high, unsigned int low, CamelFolderChangeInfo *changes, CamelException *ex); -static int add_range_head(CamelNNTPSummary *cns, unsigned int high, unsigned int low, CamelFolderChangeInfo *changes, CamelException *ex); - -enum _xover_t { - XOVER_STRING = 0, - XOVER_MSGID, - XOVER_SIZE, -}; - -struct _xover_header { - struct _xover_header *next; - - const char *name; - unsigned int skip:8; - enum _xover_t type:8; -}; - -struct _CamelNNTPSummaryPrivate { - char *uid; - - struct _xover_header *xover; /* xoverview format */ - int xover_setup; -}; - -#define _PRIVATE(o) (((CamelNNTPSummary *)(o))->priv) - -static CamelMessageInfo * message_info_new (CamelFolderSummary *, struct _camel_header_raw *); -static int summary_header_load(CamelFolderSummary *, FILE *); -static int summary_header_save(CamelFolderSummary *, FILE *); - -static void camel_nntp_summary_class_init (CamelNNTPSummaryClass *klass); -static void camel_nntp_summary_init (CamelNNTPSummary *obj); -static void camel_nntp_summary_finalise (CamelObject *obj); -static CamelFolderSummaryClass *camel_nntp_summary_parent; - -CamelType -camel_nntp_summary_get_type(void) -{ - static CamelType type = CAMEL_INVALID_TYPE; - - if (type == CAMEL_INVALID_TYPE) { - type = camel_type_register(camel_folder_summary_get_type(), "CamelNNTPSummary", - sizeof (CamelNNTPSummary), - sizeof (CamelNNTPSummaryClass), - (CamelObjectClassInitFunc) camel_nntp_summary_class_init, - NULL, - (CamelObjectInitFunc) camel_nntp_summary_init, - (CamelObjectFinalizeFunc) camel_nntp_summary_finalise); - } - - return type; -} - -static void -camel_nntp_summary_class_init(CamelNNTPSummaryClass *klass) -{ - CamelFolderSummaryClass *sklass = (CamelFolderSummaryClass *) klass; - - camel_nntp_summary_parent = CAMEL_FOLDER_SUMMARY_CLASS(camel_type_get_global_classfuncs(camel_folder_summary_get_type())); - - sklass->message_info_new = message_info_new; - sklass->summary_header_load = summary_header_load; - sklass->summary_header_save = summary_header_save; -} - -static void -camel_nntp_summary_init(CamelNNTPSummary *obj) -{ - struct _CamelNNTPSummaryPrivate *p; - struct _CamelFolderSummary *s = (CamelFolderSummary *)obj; - - p = _PRIVATE(obj) = g_malloc0(sizeof(*p)); - - /* subclasses need to set the right instance data sizes */ - s->message_info_size = sizeof(CamelMessageInfo); - s->content_info_size = sizeof(CamelMessageContentInfo); - - /* and a unique file version */ - s->version += CAMEL_NNTP_SUMMARY_VERSION; -} - -static void -camel_nntp_summary_finalise(CamelObject *obj) -{ - CamelNNTPSummary *cns = CAMEL_NNTP_SUMMARY(obj); - struct _xover_header *xover, *xn; - - xover = cns->priv->xover; - while (xover) { - xn = xover->next; - g_free(xover); - xover = xn; - } - - g_free(cns->priv); -} - -CamelNNTPSummary * -camel_nntp_summary_new(CamelNNTPFolder *folder) -{ - CamelNNTPSummary *cns = (CamelNNTPSummary *)camel_object_new(camel_nntp_summary_get_type()); - char *path; - - cns->folder = folder; - path = g_strdup_printf("%s.ev-summary", folder->storage_path); - camel_folder_summary_set_filename((CamelFolderSummary *)cns, path); - g_free(path); - - camel_folder_summary_set_build_content((CamelFolderSummary *)cns, FALSE); - - return cns; -} - -static CamelMessageInfo * -message_info_new(CamelFolderSummary *s, struct _camel_header_raw *h) -{ - CamelMessageInfo *mi; - CamelNNTPSummary *cns = (CamelNNTPSummary *)s; - - /* error to call without this setup */ - if (cns->priv->uid == NULL) - return NULL; - - /* we shouldn't be here if we already have this uid */ - g_assert(camel_folder_summary_uid(s, cns->priv->uid) == NULL); - - mi = ((CamelFolderSummaryClass *)camel_nntp_summary_parent)->message_info_new(s, h); - if (mi) { - camel_message_info_set_uid(mi, cns->priv->uid); - cns->priv->uid = NULL; - } - - return mi; -} - -static int -summary_header_load(CamelFolderSummary *s, FILE *in) -{ - CamelNNTPSummary *cns = CAMEL_NNTP_SUMMARY(s); - - if (((CamelFolderSummaryClass *)camel_nntp_summary_parent)->summary_header_load(s, in) == -1 - || camel_file_util_decode_fixed_int32(in, &cns->high) == -1 - || camel_file_util_decode_fixed_int32(in, &cns->low) == -1) - return -1; - - return 0; -} - -static int -summary_header_save(CamelFolderSummary *s, FILE *out) -{ - CamelNNTPSummary *cns = CAMEL_NNTP_SUMMARY(s); - - if (((CamelFolderSummaryClass *)camel_nntp_summary_parent)->summary_header_save(s, out) == -1 - || camel_file_util_encode_fixed_int32(out, cns->high) == -1 - || camel_file_util_encode_fixed_int32(out, cns->low) == -1) - return -1; - - return 0; -} - -/* Assumes we have the stream */ -int -camel_nntp_summary_check(CamelNNTPSummary *cns, CamelFolderChangeInfo *changes, CamelException *ex) -{ - CamelNNTPStore *store; - CamelFolder *folder; - CamelFolderSummary *s; - int ret, i; - char *line; - unsigned int n, f, l; - int count; - - if (xover_setup(cns, ex) == -1) - return -1; - - folder = (CamelFolder *)cns->folder; - store = (CamelNNTPStore *)folder->parent_store; - s = (CamelFolderSummary *)cns; - - ret = camel_nntp_command(store, &line, "group %s", folder->full_name); - if (ret == 411) { - camel_exception_setv(ex, CAMEL_EXCEPTION_FOLDER_INVALID, - _("No such folder: %s"), line); - return -1; - } else if (ret != 211) { - camel_exception_setv(ex, CAMEL_EXCEPTION_SERVICE_UNAVAILABLE, - _("Could not get group: %s"), line); - return -1; - } - - line +=3; - n = strtoul(line, &line, 10); - f = strtoul(line, &line, 10); - l = strtoul(line, &line, 10); - - dd(printf("nntp_summary: got last '%u' first '%u'\n" - "nntp_summary: high '%u' low '%u'\n", l, f, cns->high, cns->low)); - - if (cns->low == f && cns->high == l) { - dd(printf("nntp_summary: no work to do!\n")); - return 0; - } - - /* Need to work out what to do with our messages */ - - /* Check for messages no longer on the server */ - if (cns->low != f) { - count = camel_folder_summary_count(s); - for (i = 0; i < count; i++) { - CamelMessageInfo *mi = camel_folder_summary_index(s, i); - - if (mi) { - const char *uid = camel_message_info_uid(mi); - const char *msgid; - - n = strtoul(uid, NULL, 10); - if (n < f || n > l) { - dd(printf("nntp_summary: %u is lower/higher than lowest/highest article, removed\n", n)); - /* Since we use a global cache this could prematurely remove - a cached message that might be in another folder - not that important as - it is a true cache */ - msgid = strchr(uid, ','); - if (msgid) - camel_data_cache_remove(store->cache, "cache", msgid+1, NULL); - camel_folder_change_info_remove_uid(changes, uid); - camel_folder_summary_remove(s, mi); - count--; - i--; - } - - camel_folder_summary_info_free(s, mi); - } - } - cns->low = f; - } - - if (cns->high < l) { - if (cns->high < f) - cns->high = f-1; - - if (cns->priv->xover) { - ret = add_range_xover(cns, l, cns->high+1, changes, ex); - } else { - ret = add_range_head(cns, l, cns->high+1, changes, ex); - } - } - - camel_folder_summary_touch(s); - - return ret; -} - -static struct { - const char *name; - int type; -} headers[] = { - { "subject", 0 }, - { "from", 0 }, - { "date", 0 }, - { "message-id", 1 }, - { "references", 0 }, - { "bytes", 2 }, -}; - -static int -xover_setup(CamelNNTPSummary *cns, CamelException *ex) -{ - CamelNNTPStore *store; - CamelFolder *folder; - CamelFolderSummary *s; - int ret, i; - char *line; - unsigned int len; - unsigned char c, *p; - struct _xover_header *xover, *last; - - if (cns->priv->xover_setup) - return 0; - - /* manual override */ - if (getenv("CAMEL_NNTP_DISABLE_XOVER") != NULL) { - cns->priv->xover_setup = TRUE; - return 0; - } - - folder = (CamelFolder *)cns->folder; - store = (CamelNNTPStore *)folder->parent_store; - s = (CamelFolderSummary *)cns; - - ret = camel_nntp_command(store, &line, "list overview.fmt"); - if (ret == -1) { - camel_exception_setv(ex, CAMEL_EXCEPTION_SYSTEM, - _("NNTP Command failed: %s"), strerror(errno)); - return -1; - } - - cns->priv->xover_setup = TRUE; - - /* unsupported command? */ - if (ret != 215) - return 0; - - last = (struct _xover_header *)&cns->priv->xover; - - /* supported command */ - while ((ret = camel_nntp_stream_line(store->stream, (unsigned char **)&line, &len)) > 0) { - p = line; - xover = g_malloc0(sizeof(*xover)); - last->next = xover; - last = xover; - while ((c = *p++)) { - if (c == ':') { - p[-1] = 0; - for (i=0;i<sizeof(headers)/sizeof(headers[0]);i++) { - if (strcmp(line, headers[i].name) == 0) { - xover->name = headers[i].name; - if (strncmp(p, "full", 4) == 0) - xover->skip = strlen(xover->name)+1; - else - xover->skip = 0; - xover->type = headers[i].type; - break; - } - } - break; - } else { - p[-1] = tolower(c); - } - } - } - - return ret; -} - -static int -add_range_xover(CamelNNTPSummary *cns, unsigned int high, unsigned int low, CamelFolderChangeInfo *changes, CamelException *ex) -{ - CamelNNTPStore *store; - CamelFolder *folder; - CamelFolderSummary *s; - CamelMessageInfo *mi; - struct _camel_header_raw *headers = NULL; - char *line, *tab; - int len, ret; - unsigned int n, count, total, size; - struct _xover_header *xover; - time_t last, now; - - folder = (CamelFolder *)cns->folder; - store = (CamelNNTPStore *)folder->parent_store; - s = (CamelFolderSummary *)cns; - - camel_operation_start(NULL, _("%s: Scanning new messages"), ((CamelService *)store)->url->host); - - ret = camel_nntp_command(store, &line, "xover %r", low, high); - if (ret != 224) { - camel_operation_end(NULL); - return -1; - } - - last = time(0); - count = 0; - total = high-low+1; - while ((ret = camel_nntp_stream_line(store->stream, (unsigned char **)&line, &len)) > 0) { - camel_operation_progress(NULL, (count * 100) / total); - count++; - n = strtoul(line, &tab, 10); - if (*tab != '\t') - continue; - tab++; - xover = cns->priv->xover; - size = 0; - for (;tab[0] && xover;xover = xover->next) { - line = tab; - tab = strchr(line, '\t'); - if (tab) - *tab++ = 0; - else - tab = line+strlen(line); - - /* do we care about this column? */ - if (xover->name) { - line += xover->skip; - if (line < tab) { - camel_header_raw_append(&headers, xover->name, line, -1); - switch(xover->type) { - case XOVER_STRING: - break; - case XOVER_MSGID: - cns->priv->uid = g_strdup_printf("%u,%s", n, line); - break; - case XOVER_SIZE: - size = strtoul(line, NULL, 10); - break; - } - } - } - } - - /* truncated line? ignore? */ - if (xover == NULL) { - mi = camel_folder_summary_uid(s, cns->priv->uid); - if (mi == NULL) { - mi = camel_folder_summary_add_from_header(s, headers); - if (mi) { - mi->size = size; - cns->high = n; - camel_folder_change_info_add_uid(changes, camel_message_info_uid(mi)); - } - } else { - camel_folder_summary_info_free(s, mi); - } - } - - if (cns->priv->uid) { - g_free(cns->priv->uid); - cns->priv->uid = NULL; - } - - camel_header_raw_clear(&headers); - - now = time(0); - if (last + 2 < now) { - camel_object_trigger_event((CamelObject *)folder, "folder_changed", changes); - camel_folder_change_info_clear(changes); - last = now; - } - } - - camel_operation_end(NULL); - - return ret; -} - -static int -add_range_head(CamelNNTPSummary *cns, unsigned int high, unsigned int low, CamelFolderChangeInfo *changes, CamelException *ex) -{ - CamelNNTPStore *store; - CamelFolder *folder; - CamelFolderSummary *s; - int i, ret = -1; - char *line, *msgid; - unsigned int n, count, total; - CamelMessageInfo *mi; - CamelMimeParser *mp; - time_t now, last; - - folder = (CamelFolder *)cns->folder; - store = (CamelNNTPStore *)folder->parent_store; - s = (CamelFolderSummary *)cns; - - mp = camel_mime_parser_new(); - - camel_operation_start(NULL, _("%s: Scanning new messages"), ((CamelService *)store)->url->host); - - last = time(0); - count = 0; - total = high-low+1; - for (i=low;i<high+1;i++) { - camel_operation_progress(NULL, (count * 100) / total); - count++; - ret = camel_nntp_command(store, &line, "head %u", i); - /* unknown article, ignore */ - if (ret == 423) - continue; - else if (ret == -1) - goto error; - else if (ret != 221) { - camel_exception_setv(ex, CAMEL_EXCEPTION_SYSTEM, _("Unknown server response: %s"), line); - goto ioerror; - } - line += 3; - n = strtoul(line, &line, 10); - if (n != i) - g_warning("retrieved message '%d' when i expected '%d'?\n", n, i); - - if ((msgid = strchr(line, '<')) && (line = strchr(msgid+1, '>'))){ - line[1] = 0; - cns->priv->uid = g_strdup_printf("%u,%s\n", n, msgid); - mi = camel_folder_summary_uid(s, cns->priv->uid); - if (mi == NULL) { - if (camel_mime_parser_init_with_stream(mp, (CamelStream *)store->stream) == -1) - goto error; - mi = camel_folder_summary_add_from_parser(s, mp); - while (camel_mime_parser_step(mp, NULL, NULL) != CAMEL_MIME_PARSER_STATE_EOF) - ; - if (mi == NULL) { - goto error; - } - cns->high = i; - camel_folder_change_info_add_uid(changes, camel_message_info_uid(mi)); - } else { - /* already have, ignore */ - camel_folder_summary_info_free(s, mi); - } - if (cns->priv->uid) { - g_free(cns->priv->uid); - cns->priv->uid = NULL; - } - } - - now = time(0); - if (last + 2 < now) { - camel_object_trigger_event((CamelObject *)folder, "folder_changed", changes); - camel_folder_change_info_clear(changes); - last = now; - } - } - - ret = 0; -error: - - if (ret == -1) { - if (errno == EINTR) - camel_exception_setv(ex, CAMEL_EXCEPTION_USER_CANCEL, _("Use cancel")); - else - camel_exception_setv(ex, CAMEL_EXCEPTION_SYSTEM, _("Operation failed: %s"), strerror(errno)); - } -ioerror: - - if (cns->priv->uid) { - g_free(cns->priv->uid); - cns->priv->uid = NULL; - } - camel_object_unref((CamelObject *)mp); - - camel_operation_end(NULL); - - return ret; -} |