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dbmail-imapsession.c
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/*
Copyright (C) 1999-2004 IC & S dbmail@ic-s.nl
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/* $Id$
*
* dm_imaputil.c
*
* IMAP-server utility functions implementations
*/
#include "dbmail.h"
#ifndef MAX_LINESIZE
#define MAX_LINESIZE (10*1024)
#endif
#define BUFLEN 2048
#define SEND_BUF_SIZE 1024
#define MAX_ARGS 512
extern db_param_t _db_params;
#define DBPFX _db_params.pfx
/* for issuing queries to the backend */
char query[DEF_QUERYSIZE];
/* cache */
extern cache_t cached_msg;
extern const char *month_desc[];
extern char base64encodestring[];
/* returned by date_sql2imap() */
#define IMAP_STANDARD_DATE "03-Nov-1979 00:00:00 +0000"
extern char _imapdate[IMAP_INTERNALDATE_LEN];
/* returned by date_imap2sql() */
#define SQL_STANDARD_DATE "1979-11-03 00:00:00"
extern char _sqldate[SQL_INTERNALDATE_LEN + 1];
extern const int month_len[];
extern const char *item_desc[];
extern const char *envelope_items[];
extern const char *imap_flag_desc[];
extern const char *imap_flag_desc_escaped[];
static int _imap_session_fetch_parse_partspec(struct ImapSession *self, int idx);
static int _imap_session_fetch_parse_octet_range(struct ImapSession *self, int idx);
static void _imap_show_body_sections(struct ImapSession *self);
static int _imap_show_body_section(body_fetch_t *bodyfetch, gpointer data);
static u64_t get_dumpsize(body_fetch_t *bodyfetch, u64_t tmpdumpsize);
/*
*
* initializer and accessors for ImapSession
*
*/
struct ImapSession * dbmail_imap_session_new(void)
{
struct ImapSession * self;
self = g_new0(struct ImapSession,1);
if (! self)
trace(TRACE_ERROR,"%s,%s: OOM error", __FILE__, __func__);
/* to we need this? */
self->ci = NULL;
self->fi = NULL;
self->msginfo = NULL;
self->tag = NULL;
self->command = NULL;
dbmail_imap_session_resetFi(self);
return self;
}
struct ImapSession * dbmail_imap_session_resetFi(struct ImapSession * self)
{
if (! self->fi) {
self->fi = g_new0(fetch_items_t,1);
return self;
}
dbmail_imap_session_bodyfetch_rewind(self);
g_list_foreach(self->fi->bodyfetch,(GFunc)g_free,NULL);
memset(self->fi,'\0',sizeof(fetch_items_t));
return self;
}
struct ImapSession * dbmail_imap_session_setClientinfo(struct ImapSession * self, clientinfo_t *ci)
{
self->ci = g_new0(clientinfo_t,1);
memcpy(self->ci, ci, sizeof(clientinfo_t));
return self;
}
struct ImapSession * dbmail_imap_session_setMsginfo(struct ImapSession * self, msginfo_t * msginfo)
{
// allocated before assignment...
self->msginfo = msginfo;
return self;
}
struct ImapSession * dbmail_imap_session_setTag(struct ImapSession * self, char * tag)
{
if (self->tag) {
g_free(self->tag);
self->tag = NULL;
}
self->tag = g_strdup(tag);
return self;
}
struct ImapSession * dbmail_imap_session_setCommand(struct ImapSession * self, char * command)
{
if (self->command) {
g_free(self->command);
self->command = NULL;
}
self->command = g_strdup(command);
return self;
}
struct ImapSession * dbmail_imap_session_setArgs(struct ImapSession * self, char ** args)
{
self->args = args;
return self;
}
void dbmail_imap_session_delete(struct ImapSession * self)
{
close_cache();
if (self->fi) {
dbmail_imap_session_bodyfetch_free(self);
g_free(self->fi);
self->fi = NULL;
}
if (self->ci) {
if (self->ci->userData) {
null_free(((imap_userdata_t*)self->ci->userData)->mailbox.seq_list);
null_free(self->ci->userData);
}
g_free(self->ci);
self->ci = NULL;
}
if (self->msginfo) {
g_free(self->msginfo);
self->msginfo = NULL;
}
if (self->tag) {
g_free(self->tag);
self->tag = NULL;
}
if (self->command) {
g_free(self->command);
self->command = NULL;
}
g_free(self);
}
/*************************************************************************************
*
*
* imap utilities using ImapSession
*
*
************************************************************************************/
#define IMAP_CACHE_MEMDUMP 1
#define IMAP_CACHE_TMPDUMP 2
static u64_t _imap_cache_set_dump(char *buf, int dumptype)
{
u64_t outcnt = 0;
char *rfc = get_crlf_encoded(buf);
switch (dumptype) {
case IMAP_CACHE_MEMDUMP:
mrewind(cached_msg.memdump);
outcnt = mwrite(rfc, strlen(rfc), cached_msg.memdump);
mrewind(cached_msg.memdump);
break;
case IMAP_CACHE_TMPDUMP:
mrewind(cached_msg.tmpdump);
outcnt = mwrite(rfc, strlen(rfc), cached_msg.tmpdump);
mrewind(cached_msg.tmpdump);
break;
}
g_free(rfc);
return outcnt;
}
static u64_t _imap_cache_update(struct ImapSession *self, message_filter_t filter)
{
u64_t tmpcnt = 0, outcnt = 0;
char *buf = NULL;
char *rfc = NULL;
trace(TRACE_DEBUG,"%s,%s: cache message [%llu] filter [%d]",
__FILE__, __func__, self->msg_idnr, filter);
if (cached_msg.file_dumped == 1 && cached_msg.num == self->msg_idnr) {
outcnt = cached_msg.dumpsize;
} else {
if (cached_msg.dmsg != NULL && GMIME_IS_MESSAGE(cached_msg.dmsg->content)) {
dbmail_message_free(cached_msg.dmsg);
cached_msg.dmsg = NULL;
}
cached_msg.dmsg = db_init_fetch(self->msg_idnr, DBMAIL_MESSAGE_FILTER_FULL);
buf = dbmail_message_to_string(cached_msg.dmsg);
outcnt = _imap_cache_set_dump(buf,IMAP_CACHE_MEMDUMP);
tmpcnt = _imap_cache_set_dump(buf,IMAP_CACHE_TMPDUMP);
assert(tmpcnt==outcnt);
cached_msg.dumpsize = outcnt;
if (cached_msg.num != self->msg_idnr)
cached_msg.num = self->msg_idnr;
cached_msg.file_dumped = 1;
g_free(buf);
g_free(rfc);
}
switch (filter) {
/* for these two update the temp MEM buffer */
case DBMAIL_MESSAGE_FILTER_HEAD:
buf = dbmail_message_hdrs_to_string(cached_msg.dmsg);
outcnt = _imap_cache_set_dump(buf,IMAP_CACHE_TMPDUMP);
g_free(buf);
break;
case DBMAIL_MESSAGE_FILTER_BODY:
buf = dbmail_message_body_to_string(cached_msg.dmsg);
outcnt = _imap_cache_set_dump(buf,IMAP_CACHE_TMPDUMP);
g_free(buf);
break;
case DBMAIL_MESSAGE_FILTER_FULL:
/* done */
break;
}
mrewind(cached_msg.memdump);
mrewind(cached_msg.tmpdump);
trace(TRACE_DEBUG,"%s,%s: cache size [%llu]", __FILE__, __func__, outcnt);
return outcnt;
}
static int _imap_session_fetch_parse_partspec(struct ImapSession *self, int idx)
{
/* check for a partspecifier */
/* first check if there is a partspecifier (numbers & dots) */
int indigit = 0;
unsigned int j = 0;
char *token, *nexttoken;
token=self->args[idx];
nexttoken=self->args[idx+1];
trace(TRACE_DEBUG,"%s,%s: token [%s], nexttoken [%s]",__FILE__, __func__, token, nexttoken);
for (j = 0; token[j]; j++) {
if (isdigit(token[j])) {
indigit = 1;
continue;
} else if (token[j] == '.') {
if (!indigit)
/* error, single dot specified */
return -2;
indigit = 0;
continue;
} else
break; /* other char found */
}
if (j > 0) {
if (indigit && token[j])
return -2; /* error DONE */
/* partspecifier present, save it */
if (j >= IMAP_MAX_PARTSPEC_LEN)
return -2; /* error DONE */
dbmail_imap_session_bodyfetch_set_partspec(self, token, j);
}
char *partspec = &token[j];
int shouldclose = 0;
if (MATCH(partspec, "header.fields")) {
dbmail_imap_session_bodyfetch_set_itemtype(self, BFIT_HEADER_FIELDS);
} else if (MATCH(partspec, "header.fields.not")) {
dbmail_imap_session_bodyfetch_set_itemtype(self, BFIT_HEADER_FIELDS_NOT);
} else if (MATCH(partspec, "text")) {
self->fi->msgparse_needed=1;
dbmail_imap_session_bodyfetch_set_itemtype(self, BFIT_TEXT);
shouldclose = 1;
} else if (MATCH(partspec, "header")) {
self->fi->msgparse_needed=1;
dbmail_imap_session_bodyfetch_set_itemtype(self, BFIT_HEADER);
shouldclose = 1;
} else if (MATCH(partspec, "mime")) {
self->fi->msgparse_needed=1;
if (j == 0)
return -2; /* error DONE */
dbmail_imap_session_bodyfetch_set_itemtype(self, BFIT_MIME);
shouldclose = 1;
} else if (token[j] == '\0') {
self->fi->msgparse_needed=1;
dbmail_imap_session_bodyfetch_set_itemtype(self, BFIT_TEXT_SILENT);
shouldclose = 1;
} else {
return -2; /* error DONE */
}
if (shouldclose) {
if (! MATCH(nexttoken, "]"))
return -2; /* error DONE */
} else {
idx++; /* should be at '(' now */
token = self->args[idx];
nexttoken = self->args[idx+1];
if (! MATCH(token,"("))
return -2; /* error DONE */
idx++; /* at first item of field list now, remember idx */
dbmail_imap_session_bodyfetch_set_argstart(self, idx);
/* walk on untill list terminates (and it does 'cause parentheses are matched) */
while (! MATCH(self->args[idx],")") )
idx++;
token = self->args[idx];
nexttoken = self->args[idx+1];
dbmail_imap_session_bodyfetch_set_argcnt(self, idx);
if (dbmail_imap_session_bodyfetch_get_last_argcnt(self) == 0 || ! MATCH(nexttoken,"]") )
return -2; /* error DONE */
}
return idx + 1;
}
static int _imap_session_fetch_parse_octet_range(struct ImapSession *self, int idx)
{
/* check if octet start/cnt is specified */
int delimpos;
unsigned int j = 0;
char *token = self->args[idx];
trace(TRACE_DEBUG,"%s,%s: parse token [%s]",__FILE__, __func__, token);
if (token && token[0] == '<') {
/* check argument */
if (token[strlen(token) - 1] != '>')
return -2; /* error DONE */
delimpos = -1;
for (j = 1; j < strlen(token) - 1; j++) {
if (token[j] == '.') {
if (delimpos != -1)
return -2;
delimpos = j;
} else if (!isdigit (token[j]))
return -2;
}
if (delimpos == -1 || delimpos == 1 || delimpos == (int) (strlen(token) - 2))
return -2; /* no delimiter found or at first/last pos OR invalid args DONE */
/* read the numbers */
token[strlen(token) - 1] = '\0';
token[delimpos] = '\0';
dbmail_imap_session_bodyfetch_set_octetstart(self, strtoll(&token[1], NULL, 10));
dbmail_imap_session_bodyfetch_set_octetcnt(self,strtoll(&token [delimpos + 1], NULL, 10));
/* restore argument */
token[delimpos] = '.';
token[strlen(token) - 1] = '>';
} else {
return idx;
}
return idx + 1; /* DONE */
}
/*
* dbmail_imap_session_fetch_parse_args()
*
* retrieves next item to be fetched from an argument list starting at the given
* index. The update index is returned being -1 on 'no-more' and -2 on error.
* arglist is supposed to be formatted according to build_args_array()
*
*/
int dbmail_imap_session_fetch_parse_args(struct ImapSession * self, int idx)
{
int invalidargs, ispeek = 0;
invalidargs = 0;
if (!self->args[idx])
return -1; /* no more */
if (self->args[idx][0] == '(')
idx++;
if (!self->args[idx])
return -2; /* error */
char *token = NULL, *nexttoken = NULL;
token = self->args[idx];
nexttoken = self->args[idx+1];
trace(TRACE_DEBUG,"%s,%s: parse args[%d] = [%s]",
__FILE__,__func__, idx, token);
if (MATCH(token,"flags")) {
self->fi->getFlags = 1;
} else if (MATCH(token,"internaldate")) {
self->fi->getInternalDate=1;
} else if (MATCH(token,"uid")) {
self->fi->getUID=1;
} else if (MATCH(token,"rfc822.size")) {
self->fi->getSize = 1;
} else if (MATCH(token,"fast")) {
self->fi->getInternalDate = 1;
self->fi->getFlags = 1;
self->fi->getSize = 1;
/* from here on message parsing will be necessary */
} else if (MATCH(token,"rfc822")) {
self->fi->msgparse_needed=1;
self->fi->getRFC822=1;
} else if (MATCH(token,"rfc822.header")) {
self->fi->msgparse_needed=1;
self->fi->getRFC822Header = 1;
} else if (MATCH(token,"rfc822.peek")) {
self->fi->msgparse_needed=1;
self->fi->getRFC822Peek = 1;
} else if (MATCH(token,"rfc822.text")) {
self->fi->msgparse_needed=1;
self->fi->getRFC822Text = 1;
} else if (MATCH(token,"body") || MATCH(token,"body.peek")) {
/* setting msgparse_needed deferred to fetch_parse_partspec
* since we don't need to parse just to retrieve headers */
dbmail_imap_session_bodyfetch_new(self);
if (MATCH(token,"body.peek"))
ispeek=1;
nexttoken = (char *)self->args[idx+1];
if (! nexttoken || ! MATCH(nexttoken,"[")) {
if (ispeek)
return -2; /* error DONE */
self->fi->getMIME_IMB_noextension = 1; /* just BODY specified */
} else {
/* now read the argument list to body */
idx++; /* now pointing at '[' (not the last arg, parentheses are matched) */
idx++; /* now pointing at what should be the item type */
token = (char *)self->args[idx];
nexttoken = (char *)self->args[idx+1];
if (MATCH(token,"]")) {
if (ispeek)
self->fi->getBodyTotalPeek = 1;
else
self->fi->getBodyTotal = 1;
return _imap_session_fetch_parse_octet_range(self,idx+1);
}
if (ispeek)
self->fi->noseen = 1;
if ((idx = _imap_session_fetch_parse_partspec(self,idx)) < 0) {
trace(TRACE_DEBUG,"%s,%s: fetch_parse_partspec return with error",
__FILE__, __func__);
return -2;
}
/* idx points to ']' now */
return _imap_session_fetch_parse_octet_range(self,idx+1);
}
} else if (MATCH(token,"all")) {
self->fi->msgparse_needed=1; // because of getEnvelope
self->fi->getInternalDate = 1;
self->fi->getEnvelope = 1;
self->fi->getFlags = 1;
self->fi->getSize = 1;
} else if (MATCH(token,"full")) {
self->fi->msgparse_needed=1;
self->fi->getInternalDate = 1;
self->fi->getEnvelope = 1;
self->fi->getMIME_IMB = 1;
self->fi->getFlags = 1;
self->fi->getSize = 1;
} else if (MATCH(token,"bodystructure")) {
self->fi->msgparse_needed=1;
self->fi->getMIME_IMB = 1;
} else if (MATCH(token,"envelope")) {
self->fi->msgparse_needed=1;
self->fi->getEnvelope = 1;
} else {
if ((! nexttoken) && (strcmp(token,")") == 0)) {
/* only allowed if last arg here */
return -1;
}
return -2; /* DONE */
}
trace(TRACE_DEBUG, "%s,%s: args[idx = %d] = %s (returning %d)\n",
__FILE__,__func__, idx, self->args[idx], idx + 1);
return idx + 1;
}
int dbmail_imap_session_fetch_get_unparsed(struct ImapSession *self, u64_t fetch_start, u64_t fetch_end)
{
imap_userdata_t *ud = (imap_userdata_t *) self->ci->userData;
u64_t lo, hi;
if (!self->use_uid) {
lo = ud->mailbox.seq_list[fetch_start];
hi = ud->mailbox.seq_list[fetch_end];
} else {
lo = fetch_start;
hi = fetch_end;
}
return dbmail_imap_session_get_msginfo_range(self, lo, hi);
}
int dbmail_imap_session_get_msginfo_range(struct ImapSession *self, u64_t msg_idnr_low, u64_t msg_idnr_high)
{
unsigned nrows, i, j;
const char *query_result;
char *to_char_str;
msginfo_t *result;
imap_userdata_t *ud = (imap_userdata_t *) self->ci->userData;
db_free_result();
to_char_str = date2char_str("internal_date");
snprintf(query, DEF_QUERYSIZE,
"SELECT seen_flag, answered_flag, deleted_flag, flagged_flag, "
"draft_flag, recent_flag, %s, rfcsize, message_idnr "
"FROM %smessages msg, %sphysmessage pm "
"WHERE pm.id = msg.physmessage_id "
"AND message_idnr BETWEEN '%llu' AND '%llu' "
"AND mailbox_idnr = '%llu' AND status < '%d' "
"ORDER BY message_idnr ASC",to_char_str,DBPFX,DBPFX,
msg_idnr_low, msg_idnr_high, ud->mailbox.uid,
MESSAGE_STATUS_DELETE);
dm_free(to_char_str);
if (db_query(query) == -1) {
trace(TRACE_ERROR, "%s,%s: could not select message",
__FILE__, __func__);
return (-1);
}
if ((nrows = db_num_rows()) == 0) {
db_free_result();
return 0;
}
if (! (result = g_new0(msginfo_t, nrows))) {
trace(TRACE_ERROR, "%s,%s: out of memory", __FILE__, __func__);
db_free_result();
return -2;
}
for (i = 0; i < nrows; i++) {
/* flags */
for (j = 0; j < IMAP_NFLAGS; j++)
result[i].flags[j] = db_get_result_bool(i, j);
/* internal date */
query_result = db_get_result(i, IMAP_NFLAGS);
strncpy(result[i].internaldate,
(query_result) ? query_result :
"1970-01-01 00:00:01",
IMAP_INTERNALDATE_LEN);
/* rfcsize */
result[i].rfcsize = db_get_result_u64(i, IMAP_NFLAGS + 1);
/* uid */
result[i].uid = db_get_result_u64(i, IMAP_NFLAGS + 2);
}
db_free_result();
dbmail_imap_session_setMsginfo(self, result);
return (int)nrows;
}
#define SEND_SPACE if (self->fi->isfirstfetchout) \
self->fi->isfirstfetchout = 0; \
else \
dbmail_imap_session_printf(self, " ")
int dbmail_imap_session_fetch_get_items(struct ImapSession *self, u64_t row)
{
int result, j = 0;
u64_t actual_cnt, tmpdumpsize, i = row;
gchar *s;
imap_userdata_t *ud = (imap_userdata_t *) self->ci->userData;
GList *sublist = NULL;;
GString *tmp = g_string_new("");
self->fi->isfirstfetchout = 1;
if (self->fi->getInternalDate) {
SEND_SPACE;
dbmail_imap_session_printf(self, "INTERNALDATE \"%s\"", date_sql2imap(self->msginfo[i].internaldate));
}
if (self->fi->getSize) {
SEND_SPACE;
dbmail_imap_session_printf(self, "RFC822.SIZE %llu", self->msginfo[i].rfcsize);
}
if (self->fi->getFlags) {
SEND_SPACE;
sublist = NULL;
for (j = 0; j < IMAP_NFLAGS; j++) {
if (self->msginfo[i].flags[j])
sublist = g_list_append(sublist,g_strdup((gchar *)imap_flag_desc_escaped[j]));
}
s = dbmail_imap_plist_as_string(sublist);
dbmail_imap_session_printf(self,"FLAGS %s",s);
g_list_foreach(sublist,(GFunc)g_free,NULL);
g_list_free(sublist);
g_free(s);
}
if (self->fi->getUID) {
SEND_SPACE;
dbmail_imap_session_printf(self, "UID %llu", self->msginfo[i].uid);
}
if (self->fi->getMIME_IMB) {
SEND_SPACE;
_imap_cache_update(self, DBMAIL_MESSAGE_FILTER_FULL);
if ((s = imap_get_structure(GMIME_MESSAGE((cached_msg.dmsg)->content), 1))==NULL) {
dbmail_imap_session_printf(self, "\r\n* BYE error fetching body structure\r\n");
return -1;
}
dbmail_imap_session_printf(self, "BODYSTRUCTURE %s", s);
g_free(s);
}
if (self->fi->getMIME_IMB_noextension) {
SEND_SPACE;
_imap_cache_update(self, DBMAIL_MESSAGE_FILTER_FULL);
if ((s = imap_get_structure(GMIME_MESSAGE((cached_msg.dmsg)->content), 0))==NULL) {
dbmail_imap_session_printf(self, "\r\n* BYE error fetching body\r\n");
return -1;
}
dbmail_imap_session_printf(self, "BODY %s",s);
g_free(s);
}
if (self->fi->getEnvelope) {
SEND_SPACE;
_imap_cache_update(self, DBMAIL_MESSAGE_FILTER_FULL);
if ((s = imap_get_envelope(GMIME_MESSAGE((cached_msg.dmsg)->content)))==NULL) {
dbmail_imap_session_printf(self, "\r\n* BYE error fetching envelope structure\r\n");
return -1;
}
dbmail_imap_session_printf(self, "ENVELOPE %s", s);
g_free(s);
}
if (self->fi->getRFC822 || self->fi->getRFC822Peek) {
SEND_SPACE;
_imap_cache_update(self, DBMAIL_MESSAGE_FILTER_FULL);
dbmail_imap_session_printf(self, "RFC822 {%llu}\r\n", cached_msg.dumpsize);
send_data(self->ci->tx, cached_msg.memdump, cached_msg.dumpsize);
if (self->fi->getRFC822)
self->fi->setseen = 1;
}
if (self->fi->getBodyTotal || self->fi->getBodyTotalPeek) {
SEND_SPACE;
_imap_cache_update(self, DBMAIL_MESSAGE_FILTER_FULL);
if (dbmail_imap_session_bodyfetch_get_last_octetcnt(self) == 0) {
dbmail_imap_session_printf(self, "BODY[] {%llu}\r\n", cached_msg.dumpsize);
send_data(self->ci->tx, cached_msg.memdump, cached_msg.dumpsize);
} else {
mseek(cached_msg.memdump, dbmail_imap_session_bodyfetch_get_last_octetstart(self), SEEK_SET);
actual_cnt = (dbmail_imap_session_bodyfetch_get_last_octetcnt(self) >
(((long long)cached_msg.dumpsize) - dbmail_imap_session_bodyfetch_get_last_octetstart(self)))
? (((long long)cached_msg.dumpsize) - dbmail_imap_session_bodyfetch_get_last_octetstart(self))
: dbmail_imap_session_bodyfetch_get_last_octetcnt(self);
dbmail_imap_session_printf(self, "BODY[]<%llu> {%llu}\r\n",
dbmail_imap_session_bodyfetch_get_last_octetstart(self), actual_cnt);
send_data(self->ci->tx, cached_msg.memdump, actual_cnt);
}
if (self->fi->getBodyTotal)
self->fi->setseen = 1;
}
if (self->fi->getRFC822Header) {
SEND_SPACE;
tmpdumpsize = _imap_cache_update(self,DBMAIL_MESSAGE_FILTER_HEAD);
dbmail_imap_session_printf(self, "RFC822.HEADER {%llu}\r\n", tmpdumpsize);
send_data(self->ci->tx, cached_msg.tmpdump, tmpdumpsize);
}
if (self->fi->getRFC822Text) {
SEND_SPACE;
tmpdumpsize = _imap_cache_update(self,DBMAIL_MESSAGE_FILTER_BODY);
dbmail_imap_session_printf(self, "RFC822.TEXT {%llu}\r\n", tmpdumpsize);
send_data(self->ci->tx, cached_msg.tmpdump, tmpdumpsize);
self->fi->setseen = 1;
}
_imap_show_body_sections(self);
/* set \Seen flag if necessary; note the absence of an error-check
* for db_get_msgflag()!
*/
int setSeenSet[IMAP_NFLAGS] = { 1, 0, 0, 0, 0, 0 };
if (self->fi->setseen && db_get_msgflag("seen", self->msg_idnr, ud->mailbox.uid) != 1) {
/* only if the user has an ACL which grants
him rights to set the flag should the
flag be set! */
result = acl_has_right(ud->userid, ud->mailbox.uid, ACL_RIGHT_SEEN);
if (result == -1) {
dbmail_imap_session_printf(self, "\r\n *BYE internal dbase error\r\n");
return -1;
}
if (result == 1) {
result = db_set_msgflag(self->msg_idnr, ud->mailbox.uid, setSeenSet, IMAPFA_ADD);
if (result == -1) {
dbmail_imap_session_printf(self, "\r\n* BYE internal dbase error\r\n");
return -1;
}
}
self->fi->getFlags = 1;
dbmail_imap_session_printf(self, " ");
}
dbmail_imap_session_printf(self, ")\r\n");
g_string_free(tmp,TRUE);
return 0;
}
static void _imap_show_body_sections(struct ImapSession *self)
{
dbmail_imap_session_bodyfetch_rewind(self);
g_list_foreach(self->fi->bodyfetch,(GFunc)_imap_show_body_section, (gpointer)self);
dbmail_imap_session_bodyfetch_rewind(self);
}
static void imap_cache_send_tmpdump(struct ImapSession *self, body_fetch_t *bodyfetch, u64_t size)
{
u64_t cnt = 0;
if (bodyfetch->octetcnt > 0) {
cnt = get_dumpsize(bodyfetch, size);
dbmail_imap_session_printf(self, "]<%llu> {%llu}\r\n", bodyfetch->octetstart, cnt);
mseek(cached_msg.tmpdump, bodyfetch->octetstart, SEEK_SET);
} else {
cnt = size;
dbmail_imap_session_printf(self, "] {%llu}\r\n", size);
mrewind(cached_msg.tmpdump);
}
send_data(self->ci->tx, cached_msg.tmpdump, cnt);
}
static int _imap_show_body_section(body_fetch_t *bodyfetch, gpointer data)
{
long long cnt = 0;
u64_t tmpdumpsize;
GList *tlist = NULL, *flist = NULL;
GString *ts;
GMimeObject *part = NULL;
char *tmp;
gboolean condition = FALSE;
int k;
u64_t physid;
struct ImapSession *self = (struct ImapSession *)data;
if (bodyfetch->itemtype < 0)
return 0;
trace(TRACE_DEBUG,"%s,%s: itemtype [%d] partspec [%s]", __FILE__, __func__, bodyfetch->itemtype, bodyfetch->partspec);
if (self->fi->msgparse_needed) {
_imap_cache_update(self, DBMAIL_MESSAGE_FILTER_FULL);
if (bodyfetch->partspec[0]) {
if (bodyfetch->partspec[0] == '0') {
dbmail_imap_session_printf(self, "\r\n%s BAD protocol error\r\n", self->tag);
trace(TRACE_DEBUG, "PROTOCOL ERROR");
return 1;
}
part = imap_get_partspec(GMIME_OBJECT((cached_msg.dmsg)->content), bodyfetch->partspec);
} else {
part = GMIME_OBJECT((cached_msg.dmsg)->content);
}
}
SEND_SPACE;
if (! self->fi->noseen)
self->fi->setseen = 1;
dbmail_imap_session_printf(self, "BODY[%s", bodyfetch->partspec);
switch (bodyfetch->itemtype) {
case BFIT_TEXT:
dbmail_imap_session_printf(self, "TEXT");
/* fall through */
case BFIT_TEXT_SILENT:
if (!part)
dbmail_imap_session_printf(self, "] NIL");
else {
tmp = imap_get_logical_part(part,"TEXT");
tmpdumpsize = _imap_cache_set_dump(tmp,IMAP_CACHE_TMPDUMP);
g_free(tmp);
if (!tmpdumpsize)
dbmail_imap_session_printf(self, "] NIL");
else
imap_cache_send_tmpdump(self,bodyfetch,tmpdumpsize);
}
break;
case BFIT_HEADER:
dbmail_imap_session_printf(self, "HEADER");
if (!part)
dbmail_imap_session_printf(self, "] NIL");
else {
tmp = imap_get_logical_part(part,"HEADER");
tmpdumpsize = _imap_cache_set_dump(tmp,IMAP_CACHE_TMPDUMP);
g_free(tmp);
if (!tmpdumpsize)
dbmail_imap_session_printf(self, "] NIL");
else
imap_cache_send_tmpdump(self,bodyfetch,tmpdumpsize);
}
break;
case BFIT_MIME:
dbmail_imap_session_printf(self, "MIME");
if (!part)
dbmail_imap_session_printf(self, "NIL");
else {
tmp = imap_get_logical_part(part,"MIME");
tmpdumpsize = _imap_cache_set_dump(tmp,IMAP_CACHE_TMPDUMP);
g_free(tmp);
if (!tmpdumpsize)
dbmail_imap_session_printf(self, "NIL");
else
imap_cache_send_tmpdump(self,bodyfetch,tmpdumpsize);
}
break;
case BFIT_HEADER_FIELDS_NOT:
condition=TRUE;
case BFIT_HEADER_FIELDS:
tlist = NULL;
for (k = 0; k < bodyfetch->argcnt; k++)
tlist = g_list_append(tlist, g_strdup(self->args[k + bodyfetch->argstart]));
tmp = dbmail_imap_plist_as_string(tlist);
dbmail_imap_session_printf(self,"HEADER.FIELDS%s %s] ", condition ? ".NOT" : "", tmp);
g_free(tmp);
if (db_get_physmessage_id(self->msg_idnr, &physid) == DM_EQUERY)
return DM_EGENERAL;
tmp = imap_message_fetch_headers(physid, tlist, condition);
tmpdumpsize=0;
if (!tmp) {
dbmail_imap_session_printf(self, "NIL");
} else {
ts = g_string_new(tmp);
g_free(tmp);
if (bodyfetch->octetcnt > 0) {
if (bodyfetch->octetstart > 0 && bodyfetch->octetstart < ts->len)
ts = g_string_erase(ts, 0, bodyfetch->octetstart);
if (ts->len > bodyfetch->octetcnt)
ts = g_string_truncate(ts, bodyfetch->octetcnt);
tmp = get_crlf_encoded(ts->str);
cnt = strlen(tmp);
dbmail_imap_session_printf(self, "<%llu> {%llu}\r\n%s",
bodyfetch->octetstart,
cnt,
tmp);
} else {
tmp = get_crlf_encoded(ts->str);
cnt = strlen(tmp);
dbmail_imap_session_printf(self, "{%llu}\r\n%s", cnt, tmp);
}
g_string_free(ts,TRUE);
g_free(tmp);
}
g_list_foreach(tlist, (GFunc)g_free, NULL);
g_list_free(tlist);
g_list_foreach(flist, (GFunc)g_free, NULL);
g_list_free(flist);
break;
default:
dbmail_imap_session_printf(self, "\r\n* BYE internal server error\r\n");
return -1;
}
return 0;
}
/*
* check_state_and_args()
*
* checks if the user is in the right state & the numbers of arguments;
* a state of -1 specifies any state
* arguments can be grouped by means of parentheses
*
* returns 1 on succes, 0 on failure