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phile.c
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C/C++ Source or Header
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1996-05-15
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31KB
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1,241 lines
/*
* Program: File routines
*
* Author: Mark Crispin
* Networks and Distributed Computing
* Computing & Communications
* University of Washington
* Administration Building, AG-44
* Seattle, WA 98195
* Internet: MRC@CAC.Washington.EDU
*
* Date: 25 August 1993
* Last Edited: 15 May 1996
*
* Copyright 1996 by the University of Washington
*
* Permission to use, copy, modify, and distribute this software and its
* documentation for any purpose and without fee is hereby granted, provided
* that the above copyright notice appears in all copies and that both the
* above copyright notice and this permission notice appear in supporting
* documentation, and that the name of the University of Washington not be
* used in advertising or publicity pertaining to distribution of the software
* without specific, written prior permission. This software is made
* available "as is", and
* THE UNIVERSITY OF WASHINGTON DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED,
* WITH REGARD TO THIS SOFTWARE, INCLUDING WITHOUT LIMITATION ALL IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, AND IN
* NO EVENT SHALL THE UNIVERSITY OF WASHINGTON BE LIABLE FOR ANY SPECIAL,
* INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, TORT
* (INCLUDING NEGLIGENCE) OR STRICT LIABILITY, ARISING OUT OF OR IN CONNECTION
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
*/
#include <stdio.h>
#include <ctype.h>
#include <errno.h>
extern int errno; /* just in case */
#include <signal.h>
#include "mail.h"
#include "osdep.h"
#include <pwd.h>
#include <sys/stat.h>
#include <sys/time.h>
#include "phile.h"
#include "rfc822.h"
#include "misc.h"
#include "dummy.h"
/* File routines */
/* Driver dispatch used by MAIL */
DRIVER philedriver = {
"phile", /* driver name */
(DRIVER *) NIL, /* next driver */
phile_valid, /* mailbox is valid for us */
phile_parameters, /* manipulate parameters */
phile_find, /* find mailboxes */
phile_find_bboards, /* find bboards */
phile_find_all, /* find all mailboxes */
phile_find_all_bboards, /* find all bboards */
phile_subscribe, /* subscribe to mailbox */
phile_unsubscribe, /* unsubscribe from mailbox */
phile_subscribe_bboard, /* subscribe to bboard */
phile_unsubscribe_bboard, /* unsubscribe from bboard */
phile_create, /* create mailbox */
phile_delete, /* delete mailbox */
phile_rename, /* rename mailbox */
phile_open, /* open mailbox */
phile_close, /* close mailbox */
phile_fetchfast, /* fetch message "fast" attributes */
phile_fetchflags, /* fetch message flags */
phile_fetchstructure, /* fetch message envelopes */
phile_fetchheader, /* fetch message header only */
phile_fetchtext, /* fetch message body only */
phile_fetchbody, /* fetch message body section */
phile_setflag, /* set message flag */
phile_clearflag, /* clear message flag */
phile_search, /* search for message based on criteria */
phile_ping, /* ping mailbox to see if still alive */
phile_check, /* check for new messages */
phile_expunge, /* expunge deleted messages */
phile_copy, /* copy messages to another mailbox */
phile_move, /* move messages to another mailbox */
phile_append, /* append string message to mailbox */
phile_gc /* garbage collect stream */
};
/* prototype stream */
MAILSTREAM phileproto = {&philedriver};
/* File validate mailbox
* Accepts: mailbox name
* Returns: our driver if name is valid, NIL otherwise
*/
DRIVER *phile_valid (name)
char *name;
{
char tmp[MAILTMPLEN];
return phile_isvalid (name,tmp) ? &philedriver : NIL;
}
/* File test for valid mailbox
* Accepts: mailbox name
* Returns: T if valid, NIL otherwise
*/
int phile_isvalid (name,tmp)
char *name;
char *tmp;
{
struct stat sbuf;
char *s;
/* INBOX never accepted, any other name is */
return ((*name != '{') && !((*name == '*') && (name[1] == '{')) &&
(s = mailboxfile (tmp,name)) && *s && !stat (s,&sbuf) &&
!(sbuf.st_mode & S_IFDIR) && sbuf.st_size);
}
/* File manipulate driver parameters
* Accepts: function code
* function-dependent value
* Returns: function-dependent return value
*/
void *phile_parameters (function,value)
long function;
void *value;
{
return NIL;
}
/* File find list of mailboxes
* Accepts: mail stream
* pattern to search
*/
void phile_find (stream,pat)
MAILSTREAM *stream;
char *pat;
{
if (stream) dummy_find (NIL,pat);
}
/* File find list of bboards
* Accepts: mail stream
* pattern to search
*/
void phile_find_bboards (stream,pat)
MAILSTREAM *stream;
char *pat;
{
if (stream) dummy_find_bboards (NIL,pat);
}
/* File find list of all mailboxes
* Accepts: mail stream
* pattern to search
*/
void phile_find_all (stream,pat)
MAILSTREAM *stream;
char *pat;
{
if (stream) dummy_find_all (NIL,pat);
}
/* File find list of all bboards
* Accepts: mail stream
* pattern to search
*/
void phile_find_all_bboards (stream,pat)
MAILSTREAM *stream;
char *pat;
{
if (stream) dummy_find_all_bboards (NIL,pat);
}
/* File subscribe to mailbox
* Accepts: mail stream
* mailbox to add to subscription list
* Returns: T on success, NIL on failure
*/
long phile_subscribe (stream,mailbox)
MAILSTREAM *stream;
char *mailbox;
{
char tmp[MAILTMPLEN];
return sm_subscribe (mailboxfile (tmp,mailbox));
}
/* File unsubscribe to mailbox
* Accepts: mail stream
* mailbox to delete from subscription list
* Returns: T on success, NIL on failure
*/
long phile_unsubscribe (stream,mailbox)
MAILSTREAM *stream;
char *mailbox;
{
char tmp[MAILTMPLEN];
return sm_unsubscribe (mailboxfile (tmp,mailbox));
}
/* File subscribe to bboard
* Accepts: mail stream
* bboard to add to subscription list
* Returns: T on success, NIL on failure
*/
long phile_subscribe_bboard (stream,mailbox)
MAILSTREAM *stream;
char *mailbox;
{
char tmp[MAILTMPLEN];
sprintf (tmp,"*%s",mailbox);
return sm_subscribe (tmp);
}
/* File unsubscribe to bboard
* Accepts: mail stream
* bboard to delete from subscription list
* Returns: T on success, NIL on failure
*/
long phile_unsubscribe_bboard (stream,mailbox)
MAILSTREAM *stream;
char *mailbox;
{
char tmp[MAILTMPLEN];
sprintf (tmp,"*%s",mailbox);
return sm_subscribe (tmp);
}
/* File create mailbox
* Accepts: MAIL stream
* mailbox name to create
* Returns: T on success, NIL on failure
*/
long phile_create (stream,mailbox)
MAILSTREAM *stream;
char *mailbox;
{
return dummy_create (stream,mailbox);
}
/* File delete mailbox
* Accepts: MAIL stream
* mailbox name to delete
* Returns: T on success, NIL on failure
*/
long phile_delete (stream,mailbox)
MAILSTREAM *stream;
char *mailbox;
{
return dummy_delete (stream,mailbox);
}
/* File rename mailbox
* Accepts: MAIL stream
* old mailbox name
* new mailbox name (or NIL for delete)
* Returns: T on success, NIL on failure
*/
long phile_rename (stream,old,new)
MAILSTREAM *stream;
char *old;
char *new;
{
return dummy_rename (stream,old,new);
}
/* File open
* Accepts: Stream to open
* Returns: Stream on success, NIL on failure
*/
MAILSTREAM *phile_open (stream)
MAILSTREAM *stream;
{
int i,k,fd;
unsigned long j,m;
char *s,tmp[MAILTMPLEN];
struct passwd *pw;
struct stat sbuf;
struct tm *t;
MESSAGECACHE *elt;
/* return prototype for OP_PROTOTYPE call */
if (!stream) return &phileproto;
if (LOCAL) { /* close old file if stream being recycled */
phile_close (stream); /* dump and save the changes */
stream->dtb = &philedriver; /* reattach this driver */
mail_free_cache (stream); /* clean up cache */
}
/* canonicalize the stream mailbox name */
mailboxfile (tmp,stream->mailbox);
if (*stream->mailbox != '*') {/* canonicalize name */
fs_give ((void **) &stream->mailbox);
stream->mailbox = cpystr (tmp);
}
/* open mailbox */
if (stat (tmp,&sbuf) || (fd = open (tmp,O_RDONLY,NIL)) < 0) {
sprintf (tmp,"Unable to open file %s",stream->mailbox);
mm_log (tmp,ERROR);
return NIL;
}
stream->local = fs_get (sizeof (PHILELOCAL));
/* initialize file information */
(elt = mail_elt (stream,1))->rfc822_size = sbuf.st_size;
elt->valid = elt->recent = T; /* mark valid flags */
stream->sequence++; /* bump sequence number */
/* only one message */
stream->nmsgs = stream->recent = 1;
stream->rdonly = T; /* make sure upper level knows readonly */
/* instantiate a new envelope and body */
LOCAL->env = mail_newenvelope ();
LOCAL->body = mail_newbody ();
t = gmtime (&sbuf.st_mtime); /* get UTC time and Julian day */
i = t->tm_hour * 60 + t->tm_min;
k = t->tm_yday;
t = localtime(&sbuf.st_mtime);/* get local time */
/* calulate time delta */
i = t->tm_hour * 60 + t->tm_min - i;
if (k = t->tm_yday - k) i += ((k < 0) == (abs (k) == 1)) ? -24*60 : 24*60;
k = abs (i); /* time from UTC either way */
elt->hours = t->tm_hour; elt->minutes = t->tm_min; elt->seconds = t->tm_sec;
elt->day = t->tm_mday; elt->month = t->tm_mon + 1;
elt->year = t->tm_year - (BASEYEAR - 1900);
elt->zoccident = (k == i) ? 0 : 1;
elt->zhours = k/60;
elt->zminutes = k % 60;
sprintf (tmp,"%s, %d %s %d %02d:%02d:%02d %c%02d%02d",
days[t->tm_wday],t->tm_mday,months[t->tm_mon],t->tm_year+1900,
t->tm_hour,t->tm_min,t->tm_sec,elt->zoccident ? '-' : '+',
elt->zhours,elt->zminutes);
/* set up Date field */
LOCAL->env->date = cpystr (tmp);
/* fill in From field from file owner */
LOCAL->env->from = mail_newaddr ();
if (pw = getpwuid (sbuf.st_uid)) strcpy (tmp,pw->pw_name);
else sprintf (tmp,"User-Number-%ld",(long) sbuf.st_uid);
LOCAL->env->from->mailbox = cpystr (tmp);
LOCAL->env->from->host = cpystr (mylocalhost ());
/* set subject to be mailbox name */
LOCAL->env->subject = cpystr (stream->mailbox);
/* slurp the data */
read (fd,LOCAL->buf = (char *) fs_get (elt->rfc822_size+1),elt->rfc822_size);
LOCAL->buf[elt->rfc822_size] = '\0';
close (fd); /* close the file */
/* analyze data type */
if (i = phile_type ((unsigned char *) LOCAL->buf,elt->rfc822_size,&j)) {
LOCAL->body->type = TYPETEXT;
LOCAL->body->subtype = cpystr ("PLAIN");
if (!(i & PTYPECRTEXT)) { /* change Internet newline format as needed */
STRING bs;
INIT (&bs,mail_string,(void *) (s = LOCAL->buf),elt->rfc822_size);
LOCAL->buf = (char *) fs_get ((m = strcrlflen (&bs) + 1));
strcrlfcpy (&LOCAL->buf,&m,s,elt->rfc822_size);
elt->rfc822_size = m; /* update size */
fs_give ((void **) &s); /* flush original UNIX-format string */
}
LOCAL->body->parameter = mail_newbody_parameter ();
LOCAL->body->parameter->attribute = cpystr ("charset");
LOCAL->body->parameter->value =
cpystr ((i & PTYPEISO2022JP) ? "ISO-2022-JP" :
(i & PTYPEISO2022KR) ? "ISO-2022-KR" :
(i & PTYPE8) ? "ISO-8859-1" : "US-ASCII");
LOCAL->body->encoding = (i & PTYPE8) ? ENC8BIT : ENC7BIT;
LOCAL->body->size.lines = j;
}
else { /* binary data */
LOCAL->body->type = TYPEAPPLICATION;
LOCAL->body->subtype = cpystr ("OCTET-STREAM");
LOCAL->body->parameter = mail_newbody_parameter ();
LOCAL->body->parameter->attribute = cpystr ("name");
LOCAL->body->parameter->value =
cpystr ((s = (strrchr (stream->mailbox,'/'))) ? s+1 : stream->mailbox);
LOCAL->body->encoding = ENCBASE64;
LOCAL->buf = (char *) rfc822_binary (s = LOCAL->buf,elt->rfc822_size,
&elt->rfc822_size);
fs_give ((void **) &s); /* flush originary binary contents */
}
LOCAL->body->size.bytes = elt->rfc822_size;
elt->rfc822_size += strlen (phile_fetchheader (stream,1));
mail_exists (stream,1); /* make sure upper level knows */
mail_recent (stream,1);
return stream; /* return stream alive to caller */
}
/* File determine data type
* Accepts: data to examine
* size of data
* pointer to line count return
* Returns: PTYPE mask of data type
*/
int phile_type (s,i,j)
unsigned char *s;
unsigned long i;
unsigned long *j;
{
int ret = PTYPETEXT;
char *charvec = "bbbbbbbaaalaacaabbbbbbbbbbbebbbbaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA";
*j = 0; /* no lines */
/* check type of every character */
while (i--) switch (charvec[*s++]) {
case 'A':
ret |= PTYPE8; /* 8bit character */
break;
case 'a':
break; /* ASCII character */
case 'b':
return PTYPEBINARY; /* binary byte seen, stop immediately */
case 'c':
ret |= PTYPECRTEXT; /* CR indicates Internet text */
break;
case 'e': /* ESC */
if (*s == '$') { /* ISO-2022 sequence? */
if (s[1] == 'B' || s[1] == '@') ret |= PTYPEISO2022JP;
else if (s[1] == ')' && s[2] == 'C') ret |= PTYPEISO2022JP;
}
break;
case 'l': /* newline */
(*j)++;
break;
}
return ret; /* return type of data */
}
/* File close
* Accepts: MAIL stream
*/
void phile_close (stream)
MAILSTREAM *stream;
{
if (LOCAL) { /* only if a file is open */
/* free local texts */
if (LOCAL->buf) fs_give ((void **) &LOCAL->buf);
/* nuke the local data */
fs_give ((void **) &stream->local);
stream->dtb = NIL; /* log out the DTB */
}
}
/* File fetch fast information
* Accepts: MAIL stream
* sequence
*/
void phile_fetchfast (stream,sequence)
MAILSTREAM *stream;
char *sequence;
{
return; /* no-op for local mail */
}
/* File fetch flags
* Accepts: MAIL stream
* sequence
*/
void phile_fetchflags (stream,sequence)
MAILSTREAM *stream;
char *sequence;
{
return; /* no-op for local mail */
}
/* File fetch structure
* Accepts: MAIL stream
* message # to fetch
* pointer to return body
* Returns: envelope of this message, body returned in body value
*
* Fetches the "fast" information as well
*/
ENVELOPE *phile_fetchstructure (stream,msgno,body)
MAILSTREAM *stream;
long msgno;
BODY **body;
{
if (body) *body = LOCAL->body;
return LOCAL->env; /* return the envelope */
}
/* File fetch message header
* Accepts: MAIL stream
* message # to fetch
* Returns: message header in RFC822 format
*/
char *phile_fetchheader (stream,msgno)
MAILSTREAM *stream;
long msgno;
{
BODY *body;
ENVELOPE *env = phile_fetchstructure (stream,msgno,&body);
rfc822_header (LOCAL->tmp,env,body);
return LOCAL->tmp;
}
/* File fetch message text (only)
body only;
* Accepts: MAIL stream
* message # to fetch
* Returns: message text in RFC822 format
*/
char *phile_fetchtext (stream,msgno)
MAILSTREAM *stream;
long msgno;
{
/* mark message as seen */
mail_elt (stream,msgno)->seen = T;
return LOCAL->buf;
}
/* File fetch message body as a structure
* Accepts: Mail stream
* message # to fetch
* section specifier
* pointer to length
* Returns: pointer to section of message body
*/
char *phile_fetchbody (stream,m,s,len)
MAILSTREAM *stream;
long m;
char *s;
unsigned long *len;
{
MESSAGECACHE *elt = mail_elt (stream,m);
if (!strcmp (s,"0")) { /* BODY[0] case? */
char *s = phile_fetchheader (stream,1);
*len = strlen (s);
return s;
}
else if (strcmp (s,"1")) return NIL;
*len = LOCAL->body->size.bytes;
elt->seen = T; /* mark message as seen */
return LOCAL->buf;
}
/* File set flag
* Accepts: MAIL stream
* sequence
* flag(s)
*/
void phile_setflag (stream,sequence,flag)
MAILSTREAM *stream;
char *sequence;
char *flag;
{
MESSAGECACHE *elt;
long i;
short f = phile_getflags (stream,flag);
if (!f) return; /* no-op if no flags to modify */
/* get sequence and loop on it */
if (mail_sequence (stream,sequence)) for (i = 1; i <= stream->nmsgs; i++)
if ((elt = mail_elt (stream,i))->sequence) {
/* set all requested flags */
if (f&fSEEN) elt->seen = T;
if (f&fDELETED) elt->deleted = T;
if (f&fFLAGGED) elt->flagged = T;
if (f&fANSWERED) elt->answered = T;
}
}
/* File clear flag
* Accepts: MAIL stream
* sequence
* flag(s)
*/
void phile_clearflag (stream,sequence,flag)
MAILSTREAM *stream;
char *sequence;
char *flag;
{
MESSAGECACHE *elt;
long i;
short f = phile_getflags (stream,flag);
if (!f) return; /* no-op if no flags to modify */
/* get sequence and loop on it */
if (mail_sequence (stream,sequence)) for (i = 1; i <= stream->nmsgs; i++)
if ((elt = mail_elt (stream,i))->sequence) {
/* clear all requested flags */
if (f&fSEEN) elt->seen = NIL;
if (f&fDELETED) elt->deleted = NIL;
if (f&fFLAGGED) elt->flagged = NIL;
if (f&fANSWERED) elt->answered = NIL;
}
}
/* File search for messages
* Accepts: MAIL stream
* search criteria
*/
void phile_search (stream,criteria)
MAILSTREAM *stream;
char *criteria;
{
long i,n;
char *d,tmp[MAILTMPLEN];
search_t f;
/* initially all searched */
for (i = 1; i <= stream->nmsgs; ++i) mail_elt (stream,i)->searched = T;
/* get first criterion */
if (criteria && (criteria = strtok (criteria," "))) {
/* for each criterion */
for (; criteria; (criteria = strtok (NIL," "))) {
f = NIL; d = NIL; n = 0; /* init then scan the criterion */
switch (*ucase (criteria)) {
case 'A': /* possible ALL, ANSWERED */
if (!strcmp (criteria+1,"LL")) f = phile_search_all;
else if (!strcmp (criteria+1,"NSWERED")) f = phile_search_answered;
break;
case 'B': /* possible BCC, BEFORE, BODY */
if (!strcmp (criteria+1,"CC"))
f = phile_search_string (phile_search_bcc,&d,&n);
else if (!strcmp (criteria+1,"EFORE"))
f = phile_search_date (phile_search_before,&n);
else if (!strcmp (criteria+1,"ODY"))
f = phile_search_string (phile_search_body,&d,&n);
break;
case 'C': /* possible CC */
if (!strcmp (criteria+1,"C"))
f = phile_search_string (phile_search_cc,&d,&n);
break;
case 'D': /* possible DELETED */
if (!strcmp (criteria+1,"ELETED")) f = phile_search_deleted;
break;
case 'F': /* possible FLAGGED, FROM */
if (!strcmp (criteria+1,"LAGGED")) f = phile_search_flagged;
else if (!strcmp (criteria+1,"ROM"))
f = phile_search_string (phile_search_from,&d,&n);
break;
case 'K': /* possible KEYWORD */
if (!strcmp (criteria+1,"EYWORD"))
f = phile_search_flag (phile_search_keyword,&d);
break;
case 'N': /* possible NEW */
if (!strcmp (criteria+1,"EW")) f = phile_search_new;
break;
case 'O': /* possible OLD, ON */
if (!strcmp (criteria+1,"LD")) f = phile_search_old;
else if (!strcmp (criteria+1,"N"))
f = phile_search_date (phile_search_on,&n);
break;
case 'R': /* possible RECENT */
if (!strcmp (criteria+1,"ECENT")) f = phile_search_recent;
break;
case 'S': /* possible SEEN, SINCE, SUBJECT */
if (!strcmp (criteria+1,"EEN")) f = phile_search_seen;
else if (!strcmp (criteria+1,"INCE"))
f = phile_search_date (phile_search_since,&n);
else if (!strcmp (criteria+1,"UBJECT"))
f = phile_search_string (phile_search_subject,&d,&n);
break;
case 'T': /* possible TEXT, TO */
if (!strcmp (criteria+1,"EXT"))
f = phile_search_string (phile_search_text,&d,&n);
else if (!strcmp (criteria+1,"O"))
f = phile_search_string (phile_search_to,&d,&n);
break;
case 'U': /* possible UN* */
if (criteria[1] == 'N') {
if (!strcmp (criteria+2,"ANSWERED")) f = phile_search_unanswered;
else if (!strcmp (criteria+2,"DELETED")) f = phile_search_undeleted;
else if (!strcmp (criteria+2,"FLAGGED")) f = phile_search_unflagged;
else if (!strcmp (criteria+2,"KEYWORD"))
f = phile_search_flag (phile_search_unkeyword,&d);
else if (!strcmp (criteria+2,"SEEN")) f = phile_search_unseen;
}
break;
default: /* we will barf below */
break;
}
if (!f) { /* if can't determine any criteria */
sprintf (tmp,"Unknown search criterion: %.30s",criteria);
mm_log (tmp,ERROR);
return;
}
/* run the search criterion */
for (i = 1; i <= stream->nmsgs; ++i)
if (mail_elt (stream,i)->searched && !(*f) (stream,i,d,n))
mail_elt (stream,i)->searched = NIL;
}
/* report search results to main program */
for (i = 1; i <= stream->nmsgs; ++i)
if (mail_elt (stream,i)->searched) mail_searched (stream,i);
}
}
/* File ping mailbox
* Accepts: MAIL stream
* Returns: T if stream alive, else NIL
* No-op for readonly files, since read/writer can expunge it from under us!
*/
long phile_ping (stream)
MAILSTREAM *stream;
{
return T;
}
/* File check mailbox
* Accepts: MAIL stream
* No-op for readonly files, since read/writer can expunge it from under us!
*/
void phile_check (stream)
MAILSTREAM *stream;
{
mm_log ("Check completed",NIL);
}
/* File expunge mailbox
* Accepts: MAIL stream
*/
void phile_expunge (stream)
MAILSTREAM *stream;
{
mm_log ("Expunge ignored on readonly mailbox",NIL);
}
/* File copy message(s)
s;
* Accepts: MAIL stream
* sequence
* destination mailbox
* Returns: T if copy successful, else NIL
*/
long phile_copy (stream,sequence,mailbox)
MAILSTREAM *stream;
char *sequence;
char *mailbox;
{
mm_log ("Copy not valid for file",ERROR);
return NIL;
}
/* File move message(s)
s;
* Accepts: MAIL stream
* sequence
* destination mailbox
* Returns: T if move successful, else NIL
*/
long phile_move (stream,sequence,mailbox)
MAILSTREAM *stream;
char *sequence;
char *mailbox;
{
mm_log ("Move not valid for file",ERROR);
return NIL;
}
/* File append message from stringstruct
* Accepts: MAIL stream
* destination mailbox
* stringstruct of messages to append
* Returns: T if append successful, else NIL
*/
long phile_append (stream,mailbox,flags,date,message)
MAILSTREAM *stream;
char *mailbox;
char *flags;
char *date;
STRING *message;
{
char tmp[MAILTMPLEN],file[MAILTMPLEN];
sprintf (tmp,"Can't append - file \"%s\" is not in valid mailbox format",
mailboxfile (file,mailbox));
mm_log (tmp,ERROR);
return NIL;
}
/* File garbage collect stream
* Accepts: Mail stream
* garbage collection flags
*/
void phile_gc (stream,gcflags)
MAILSTREAM *stream;
long gcflags;
{
/* nothing here for now */
}
/* Internal routines */
/* Parse flag list
* Accepts: MAIL stream
* flag list as a character string
* Returns: flag command list
*/
short phile_getflags (stream,flag)
MAILSTREAM *stream;
char *flag;
{
char *t,tmp[MAILTMPLEN],err[MAILTMPLEN];
short f = 0;
short i,j;
if (flag && *flag) { /* no-op if no flag string */
/* check if a list and make sure valid */
if ((i = (*flag == '(')) ^ (flag[strlen (flag)-1] == ')')) {
mm_log ("Bad flag list",ERROR);
return NIL;
}
/* copy the flag string w/o list construct */
strncpy (tmp,flag+i,(j = strlen (flag) - (2*i)));
tmp[j] = '\0';
t = ucase (tmp); /* uppercase only from now on */
while (t && *t) { /* parse the flags */
if (*t == '\\') { /* system flag? */
switch (*++t) { /* dispatch based on first character */
case 'S': /* possible \Seen flag */
if (t[1] == 'E' && t[2] == 'E' && t[3] == 'N') i = fSEEN;
t += 4; /* skip past flag name */
break;
case 'D': /* possible \Deleted flag */
if (t[1] == 'E' && t[2] == 'L' && t[3] == 'E' && t[4] == 'T' &&
t[5] == 'E' && t[6] == 'D') i = fDELETED;
t += 7; /* skip past flag name */
break;
case 'F': /* possible \Flagged flag */
if (t[1] == 'L' && t[2] == 'A' && t[3] == 'G' && t[4] == 'G' &&
t[5] == 'E' && t[6] == 'D') i = fFLAGGED;
t += 7; /* skip past flag name */
break;
case 'A': /* possible \Answered flag */
if (t[1] == 'N' && t[2] == 'S' && t[3] == 'W' && t[4] == 'E' &&
t[5] == 'R' && t[6] == 'E' && t[7] == 'D') i = fANSWERED;
t += 8; /* skip past flag name */
break;
default: /* unknown */
i = 0;
break;
}
/* add flag to flags list */
if (i && ((*t == '\0') || (*t++ == ' '))) f |= i;
}
else { /* no user flags yet */
t = strtok (t," "); /* isolate flag name */
sprintf (err,"Unknown flag: %.80s",t);
t = strtok (NIL," "); /* get next flag */
mm_log (err,ERROR);
}
}
}
return f;
}
/* Search support routines
* Accepts: MAIL stream
* message number
* pointer to additional data
* Returns: T if search matches, else NIL
*/
char phile_search_all (stream,msgno,d,n)
MAILSTREAM *stream;
long msgno;
char *d;
long n;
{
return T; /* ALL always succeeds */
}
char phile_search_answered (stream,msgno,d,n)
MAILSTREAM *stream;
long msgno;
char *d;
long n;
{
return mail_elt (stream,msgno)->answered ? T : NIL;
}
char phile_search_deleted (stream,msgno,d,n)
MAILSTREAM *stream;
long msgno;
char *d;
long n;
{
return mail_elt (stream,msgno)->deleted ? T : NIL;
}
char phile_search_flagged (stream,msgno,d,n)
MAILSTREAM *stream;
long msgno;
char *d;
long n;
{
return mail_elt (stream,msgno)->flagged ? T : NIL;
}
char phile_search_keyword (stream,msgno,d,n)
MAILSTREAM *stream;
long msgno;
char *d;
long n;
{
return NIL; /* keywords not supported yet */
}
char phile_search_new (stream,msgno,d,n)
MAILSTREAM *stream;
long msgno;
char *d;
long n;
{
MESSAGECACHE *elt = mail_elt (stream,msgno);
return (elt->recent && !elt->seen) ? T : NIL;
}
char phile_search_old (stream,msgno,d,n)
MAILSTREAM *stream;
long msgno;
char *d;
long n;
{
return mail_elt (stream,msgno)->recent ? NIL : T;
}
char phile_search_recent (stream,msgno,d,n)
MAILSTREAM *stream;
long msgno;
char *d;
long n;
{
return mail_elt (stream,msgno)->recent ? T : NIL;
}
char phile_search_seen (stream,msgno,d,n)
MAILSTREAM *stream;
long msgno;
char *d;
long n;
{
return mail_elt (stream,msgno)->seen ? T : NIL;
}
char phile_search_unanswered (stream,msgno,d,n)
MAILSTREAM *stream;
long msgno;
char *d;
long n;
{
return mail_elt (stream,msgno)->answered ? NIL : T;
}
char phile_search_undeleted (stream,msgno,d,n)
MAILSTREAM *stream;
long msgno;
char *d;
long n;
{
return mail_elt (stream,msgno)->deleted ? NIL : T;
}
char phile_search_unflagged (stream,msgno,d,n)
MAILSTREAM *stream;
long msgno;
char *d;
long n;
{
return mail_elt (stream,msgno)->flagged ? NIL : T;
}
char phile_search_unkeyword (stream,msgno,d,n)
MAILSTREAM *stream;
long msgno;
char *d;
long n;
{
return T; /* keywords not supported yet */
}
char phile_search_unseen (stream,msgno,d,n)
MAILSTREAM *stream;
long msgno;
char *d;
long n;
{
return mail_elt (stream,msgno)->seen ? NIL : T;
}
char phile_search_before (stream,msgno,d,n)
MAILSTREAM *stream;
long msgno;
char *d;
long n;
{
MESSAGECACHE *elt = mail_elt (stream,msgno);
return (char) ((long) ((elt->year << 9) + (elt->month << 5) + elt->day) < n);
}
char phile_search_on (stream,msgno,d,n)
MAILSTREAM *stream;
long msgno;
char *d;
long n;
{
MESSAGECACHE *elt = mail_elt (stream,msgno);
return (char) (((elt->year << 9) + (elt->month << 5) + elt->day) == n);
}
char phile_search_since (stream,msgno,d,n)
MAILSTREAM *stream;
long msgno;
char *d;
long n;
{
/* everybody interprets "since" as .GE. */
MESSAGECACHE *elt = mail_elt (stream,msgno);
return (char)((long) ((elt->year << 9) + (elt->month << 5) + elt->day) >= n);
}
char phile_search_body (stream,msgno,d,n)
MAILSTREAM *stream;
long msgno;
char *d;
long n;
{
return search (LOCAL->buf,mail_elt (stream,msgno)->rfc822_size,d,n);
}
char phile_search_subject (stream,msgno,d,n)
MAILSTREAM *stream;
long msgno;
char *d;
long n;
{
char *s = phile_fetchstructure (stream,msgno,NIL)->subject;
return s ? search (s,strlen (s),d,n) : NIL;
}
char phile_search_text (stream,msgno,d,n)
MAILSTREAM *stream;
long msgno;
char *d;
long n;
{
return phile_search_body (stream,msgno,d,n);
}
char phile_search_bcc (stream,msgno,d,n)
MAILSTREAM *stream;
long msgno;
char *d;
long n;
{
char tmp[MAILTMPLEN];
tmp[0] = '\0'; /* initially empty string */
/* get text for address */
rfc822_write_address (tmp,phile_fetchstructure (stream,msgno,NIL)->bcc);
return search (tmp,strlen (tmp),d,n);
}
char phile_search_cc (stream,msgno,d,n)
MAILSTREAM *stream;
long msgno;
char *d;
long n;
{
char tmp[MAILTMPLEN];
tmp[0] = '\0'; /* initially empty string */
/* get text for address */
rfc822_write_address (tmp,phile_fetchstructure (stream,msgno,NIL)->cc);
return search (tmp,strlen (tmp),d,n);
}
char phile_search_from (stream,m,d,n)
MAILSTREAM *stream;
long m;
char *d;
long n;
{
char tmp[MAILTMPLEN];
tmp[0] = '\0'; /* initially empty string */
/* get text for address */
rfc822_write_address (tmp,phile_fetchstructure (stream,m,NIL)->from);
return search (tmp,strlen (tmp),d,n);
}
char phile_search_to (stream,msgno,d,n)
MAILSTREAM *stream;
long msgno;
char *d;
long n;
{
char tmp[MAILTMPLEN];
tmp[0] = '\0'; /* initially empty string */
/* get text for address */
rfc822_write_address (tmp,phile_fetchstructure (stream,msgno,NIL)->to);
return search (tmp,strlen (tmp),d,n);
}
/* Search parsers */
/* Parse a date
* Accepts: function to return
* pointer to date integer to return
* Returns: function to return
*/
search_t phile_search_date (f,n)
search_t f;
long *n;
{
long i;
char *s;
MESSAGECACHE elt;
/* parse the date and return fn if OK */
return (phile_search_string (f,&s,&i) && mail_parse_date (&elt,s) &&
(*n = (elt.year << 9) + (elt.month << 5) + elt.day)) ? f : NIL;
}
/* Parse a flag
* Accepts: function to return
* pointer to string to return
* Returns: function to return
*/
search_t phile_search_flag (f,d)
search_t f;
char **d;
{
/* get a keyword, return if OK */
return (*d = strtok (NIL," ")) ? f : NIL;
}
/* Parse a string
* Accepts: function to return
* pointer to string to return
* pointer to string length to return
* Returns: function to return
*/
search_t phile_search_string (f,d,n)
search_t f;
char **d;
long *n;
{
char *end = " ";
char *c = strtok (NIL,""); /* remainder of criteria */
if (!c) return NIL; /* missing argument */
switch (*c) { /* see what the argument is */
case '{': /* literal string */
*n = strtol (c+1,d,10); /* get its length */
if ((*(*d)++ == '}') && (*(*d)++ == '\015') && (*(*d)++ == '\012') &&
(!(*(c = *d + *n)) || (*c == ' '))) {
char e = *--c;
*c = DELIM; /* make sure not a space */
strtok (c," "); /* reset the strtok mechanism */
*c = e; /* put character back */
break;
}
case '\0': /* catch bogons */
case ' ':
return NIL;
case '"': /* quoted string */
if (strchr (c+1,'"')) end = "\"";
else return NIL;
default: /* atomic string */
if (*d = strtok (c,end)) *n = strlen (*d);
else return NIL;
break;
}
return f;
}