Execute a Pattern. More...

#include "config.h"
#include <assert.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include "private.h"
#include "mutt/lib.h"
#include "address/lib.h"
#include "config/lib.h"
#include "email/lib.h"
#include "core/lib.h"
#include "alias/alias.h"
#include "alias/gui.h"
#include "alias/lib.h"
#include "mutt.h"
#include "lib.h"
#include "attach/lib.h"
#include "ncrypt/lib.h"
#include "send/lib.h"
#include "copy.h"
#include "handler.h"
#include "maillist.h"
#include "mx.h"
#include <sys/stat.h>

Include dependency graph for exec.c:

Go to the source code of this file.

Functions
static bool	pattern_exec (struct Pattern pat, PatternExecFlags flags, struct Mailbox m, struct Email e, struct Message msg, struct PatternCache *cache)
	Match a pattern against an email header.

static bool	patmatch (const struct Pattern pat, const char buf)
	Compare a string to a Pattern.

static void	print_crypt_pattern_op_error (int op)
	Print an error for a disabled crypto pattern.

static bool	msg_search (struct Pattern pat, struct Email e, struct Message *msg)
	Search an email.

static bool	perform_and (struct PatternList pat, PatternExecFlags flags, struct Mailbox m, struct Email e, struct Message msg, struct PatternCache *cache)
	Perform a logical AND on a set of Patterns.

static bool	perform_alias_and (struct PatternList pat, PatternExecFlags flags, struct AliasView av, struct PatternCache *cache)
	Perform a logical AND on a set of Patterns.

static int	perform_or (struct PatternList pat, PatternExecFlags flags, struct Mailbox m, struct Email e, struct Message msg, struct PatternCache *cache)
	Perform a logical OR on a set of Patterns.

static int	perform_alias_or (struct PatternList pat, PatternExecFlags flags, struct AliasView av, struct PatternCache *cache)
	Perform a logical OR on a set of Patterns.

static int	match_addrlist (struct Pattern *pat, bool match_personal, int n,...)
	Match a Pattern against an Address list.

static bool	match_reference (struct Pattern pat, struct ListHead refs)
	Match references against a Pattern.

static bool	mutt_is_predicate_recipient (bool all_addr, struct Envelope *env, addr_predicate_t p)
	Test an Envelopes Addresses using a predicate function.

bool	mutt_is_subscribed_list_recipient (bool all_addr, struct Envelope *env)
	Matches subscribed mailing lists.

bool	mutt_is_list_recipient (bool all_addr, struct Envelope *env)
	Matches known mailing lists.

static int	match_user (bool all_addr, int n,...)
	Matches the user's email Address.

static int	match_threadcomplete (struct PatternList pat, PatternExecFlags flags, struct Mailbox m, struct MuttThread *t, int left, int up, int right, int down)
	Match a Pattern against an email thread.

static int	match_threadparent (struct PatternList pat, PatternExecFlags flags, struct Mailbox m, struct MuttThread *t)
	Match Pattern against an email's parent.

static int	match_threadchildren (struct PatternList pat, PatternExecFlags flags, struct Mailbox m, struct MuttThread *t)
	Match Pattern against an email's children.

static bool	match_content_type (const struct Pattern pat, struct Body b)
	Match a Pattern against an Attachment's Content-Type.

static bool	match_mime_content_type (const struct Pattern pat, struct Email e, FILE *fp)
	Match a Pattern against an email's Content-Type.

static bool	match_update_dynamic_date (struct Pattern *pat)
	Update a dynamic date pattern.

static void	set_pattern_cache_value (int *cache_entry, int value)
	Sets a value in the PatternCache cache entry.

static bool	get_pattern_cache_value (int cache_entry)
	Get pattern cache value.

static int	is_pattern_cache_set (int cache_entry)
	Is a given Pattern cached?

static int	msg_search_sendmode (struct Email e, struct Pattern pat)
	Search in send-mode.

static bool	pattern_needs_msg (const struct Mailbox m, const struct Pattern pat)
	Check whether a pattern needs a full message.

bool	mutt_pattern_exec (struct Pattern pat, PatternExecFlags flags, struct Mailbox m, struct Email e, struct PatternCache cache)
	Match a pattern against an email header.

bool	mutt_pattern_alias_exec (struct Pattern pat, PatternExecFlags flags, struct AliasView av, struct PatternCache *cache)
	Match a pattern against an alias.

Detailed Description

Execute a Pattern.

Authors

Pietro Cerutti
Richard Russon

Copyright: 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, see http://www.gnu.org/licenses/.

Definition in file exec.c.

Function Documentation

◆ pattern_exec()

static bool pattern_exec	(	struct Pattern *	pat,
		PatternExecFlags	flags,
		struct Mailbox *	m,
		struct Email *	e,
		struct Message *	msg,
		struct PatternCache *	cache
	)

static

Match a pattern against an email header.

Parameters

pat	Pattern to match
flags	Flags, e.g. MUTT_MATCH_FULL_ADDRESS
m	Mailbox
e	Email
msg	MEssage
cache	Cache for common Patterns

Return values

true	Success, pattern matched
false	Pattern did not match

flags: MUTT_MATCH_FULL_ADDRESS: match both personal and machine address cache: For repeated matches against the same Header, passing in non-NULL will store some of the cacheable pattern matches in this structure.

Definition at line 824 of file exec.c.

{
  switch (pat->op)
  {
    case MUTT_PAT_AND:
      return pat->pat_not ^ (perform_and(pat->child, flags, m, e, msg, cache) > 0);
    case MUTT_PAT_OR:
      return pat->pat_not ^ (perform_or(pat->child, flags, m, e, msg, cache) > 0);
    case MUTT_PAT_THREAD:
      return pat->pat_not ^
             match_threadcomplete(pat->child, flags, m, e->thread, 1, 1, 1, 1);
    case MUTT_PAT_PARENT:
      return pat->pat_not ^ match_threadparent(pat->child, flags, m, e->thread);
    case MUTT_PAT_CHILDREN:
      return pat->pat_not ^ match_threadchildren(pat->child, flags, m, e->thread);
    case MUTT_ALL:
      return !pat->pat_not;
    case MUTT_EXPIRED:
      return pat->pat_not ^ e->expired;
    case MUTT_SUPERSEDED:
      return pat->pat_not ^ e->superseded;
    case MUTT_FLAG:
      return pat->pat_not ^ e->flagged;
    case MUTT_TAG:
      return pat->pat_not ^ e->tagged;
    case MUTT_NEW:
      return pat->pat_not ? e->old || e->read : !(e->old || e->read);
    case MUTT_UNREAD:
      return pat->pat_not ? e->read : !e->read;
    case MUTT_REPLIED:
      return pat->pat_not ^ e->replied;
    case MUTT_OLD:
      return pat->pat_not ? (!e->old || e->read) : (e->old && !e->read);
    case MUTT_READ:
      return pat->pat_not ^ e->read;
    case MUTT_DELETED:
      return pat->pat_not ^ e->deleted;
    case MUTT_PAT_MESSAGE:
      return pat->pat_not ^ ((EMSG(e) >= pat->min) && (EMSG(e) <= pat->max));
    case MUTT_PAT_DATE:
      if (pat->dynamic)
        match_update_dynamic_date(pat);
      return pat->pat_not ^ ((e->date_sent >= pat->min) && (e->date_sent <= pat->max));
    case MUTT_PAT_DATE_RECEIVED:
      if (pat->dynamic)
        match_update_dynamic_date(pat);
      return pat->pat_not ^ ((e->received >= pat->min) && (e->received <= pat->max));
    case MUTT_PAT_BODY:
    case MUTT_PAT_HEADER:
    case MUTT_PAT_WHOLE_MSG:
      if (pat->sendmode)
      {
        if (!e->body || !e->body->filename)
          return false;
        return pat->pat_not ^ msg_search_sendmode(e, pat);
      }
      /* m can be NULL in certain cases, such as when replying to a message
       * from the attachment menu and the user has a reply-hook using "~e".
       * This is also the case when message scoring.  */
      if (!m)
        return false;
#ifdef USE_IMAP
      /* IMAP search sets e->matched at search compile time */
      if ((m->type == MUTT_IMAP) && pat->string_match)
        return e->matched;
#endif
      return pat->pat_not ^ msg_search(pat, e, msg);
    case MUTT_PAT_SERVERSEARCH:
#ifdef USE_IMAP
      if (!m)
        return false;
      if (m->type == MUTT_IMAP)
      {
        return (pat->string_match) ? e->matched : false;
      }
#endif
      mutt_error(_("error: server custom search only supported with IMAP"));
      return false;
    case MUTT_PAT_SENDER:
      if (!e->env)
        return false;
      return pat->pat_not ^ match_addrlist(pat, (flags & MUTT_MATCH_FULL_ADDRESS),
                                           1, &e->env->sender);
    case MUTT_PAT_FROM:
      if (!e->env)
        return false;
      return pat->pat_not ^
             match_addrlist(pat, (flags & MUTT_MATCH_FULL_ADDRESS), 1, &e->env->from);
    case MUTT_PAT_TO:
      if (!e->env)
        return false;
      return pat->pat_not ^
             match_addrlist(pat, (flags & MUTT_MATCH_FULL_ADDRESS), 1, &e->env->to);
    case MUTT_PAT_CC:
      if (!e->env)
        return false;
      return pat->pat_not ^
             match_addrlist(pat, (flags & MUTT_MATCH_FULL_ADDRESS), 1, &e->env->cc);
    case MUTT_PAT_BCC:
      if (!e->env)
        return false;
      return pat->pat_not ^
             match_addrlist(pat, (flags & MUTT_MATCH_FULL_ADDRESS), 1, &e->env->bcc);
    case MUTT_PAT_SUBJECT:
      if (!e->env)
        return false;
      return pat->pat_not ^ (e->env->subject && patmatch(pat, e->env->subject));
    case MUTT_PAT_ID:
    case MUTT_PAT_ID_EXTERNAL:
      if (!e->env)
        return false;
      return pat->pat_not ^ (e->env->message_id && patmatch(pat, e->env->message_id));
    case MUTT_PAT_SCORE:
      return pat->pat_not ^ (e->score >= pat->min &&
                             (pat->max == MUTT_MAXRANGE || e->score <= pat->max));
    case MUTT_PAT_SIZE:
      return pat->pat_not ^ (e->body->length >= pat->min &&
                             (pat->max == MUTT_MAXRANGE || e->body->length <= pat->max));
    case MUTT_PAT_REFERENCE:
      if (!e->env)
        return false;
      return pat->pat_not ^ (match_reference(pat, &e->env->references) ||
                             match_reference(pat, &e->env->in_reply_to));
    case MUTT_PAT_ADDRESS:
      if (!e->env)
        return false;
      return pat->pat_not ^ match_addrlist(pat, (flags & MUTT_MATCH_FULL_ADDRESS),
                                           5, &e->env->from, &e->env->sender,
                                           &e->env->to, &e->env->cc, &e->env->bcc);
    case MUTT_PAT_RECIPIENT:
      if (!e->env)
        return false;
      return pat->pat_not ^ match_addrlist(pat, (flags & MUTT_MATCH_FULL_ADDRESS), 3,
                                           &e->env->to, &e->env->cc, &e->env->bcc);
    case MUTT_PAT_LIST: /* known list, subscribed or not */
    {
      if (!e->env)
        return false;
 
      bool result;
      if (cache)
      {
        int *cache_entry = pat->all_addr ? &cache->list_all : &cache->list_one;
        if (!is_pattern_cache_set(*cache_entry))
        {
          set_pattern_cache_value(cache_entry,
                                  mutt_is_list_recipient(pat->all_addr, e->env));
        }
        result = get_pattern_cache_value(*cache_entry);
      }
      else
      {
        result = mutt_is_list_recipient(pat->all_addr, e->env);
      }
      return pat->pat_not ^ result;
    }
    case MUTT_PAT_SUBSCRIBED_LIST:
    {
      if (!e->env)
        return false;
 
      bool result;
      if (cache)
      {
        int *cache_entry = pat->all_addr ? &cache->sub_all : &cache->sub_one;
        if (!is_pattern_cache_set(*cache_entry))
        {
          set_pattern_cache_value(cache_entry,
                                  mutt_is_subscribed_list_recipient(pat->all_addr, e->env));
        }
        result = get_pattern_cache_value(*cache_entry);
      }
      else
      {
        result = mutt_is_subscribed_list_recipient(pat->all_addr, e->env);
      }
      return pat->pat_not ^ result;
    }
    case MUTT_PAT_PERSONAL_RECIP:
    {
      if (!e->env)
        return false;
 
      bool result;
      if (cache)
      {
        int *cache_entry = pat->all_addr ? &cache->pers_recip_all : &cache->pers_recip_one;
        if (!is_pattern_cache_set(*cache_entry))
        {
          set_pattern_cache_value(cache_entry,
                                  match_user(pat->all_addr, 3, &e->env->to,
                                             &e->env->cc, &e->env->bcc));
        }
        result = get_pattern_cache_value(*cache_entry);
      }
      else
      {
        result = match_user(pat->all_addr, 3, &e->env->to, &e->env->cc, &e->env->bcc);
      }
      return pat->pat_not ^ result;
    }
    case MUTT_PAT_PERSONAL_FROM:
    {
      if (!e->env)
        return false;
 
      bool result;
      if (cache)
      {
        int *cache_entry = pat->all_addr ? &cache->pers_from_all : &cache->pers_from_one;
        if (!is_pattern_cache_set(*cache_entry))
        {
          set_pattern_cache_value(cache_entry,
                                  match_user(pat->all_addr, 1, &e->env->from));
        }
        result = get_pattern_cache_value(*cache_entry);
      }
      else
      {
        result = match_user(pat->all_addr, 1, &e->env->from);
      }
      return pat->pat_not ^ result;
    }
    case MUTT_PAT_COLLAPSED:
      return pat->pat_not ^ (e->collapsed && e->num_hidden > 1);
    case MUTT_PAT_CRYPT_SIGN:
      if (!WithCrypto)
      {
        print_crypt_pattern_op_error(pat->op);
        return false;
      }
      return pat->pat_not ^ ((e->security & SEC_SIGN) ? 1 : 0);
    case MUTT_PAT_CRYPT_VERIFIED:
      if (!WithCrypto)
      {
        print_crypt_pattern_op_error(pat->op);
        return false;
      }
      return pat->pat_not ^ ((e->security & SEC_GOODSIGN) ? 1 : 0);
    case MUTT_PAT_CRYPT_ENCRYPT:
      if (!WithCrypto)
      {
        print_crypt_pattern_op_error(pat->op);
        return false;
      }
      return pat->pat_not ^ ((e->security & SEC_ENCRYPT) ? 1 : 0);
    case MUTT_PAT_PGP_KEY:
      if (!(WithCrypto & APPLICATION_PGP))
      {
        print_crypt_pattern_op_error(pat->op);
        return false;
      }
      return pat->pat_not ^ ((e->security & PGP_KEY) == PGP_KEY);
    case MUTT_PAT_XLABEL:
      if (!e->env)
        return false;
      return pat->pat_not ^ (e->env->x_label && patmatch(pat, e->env->x_label));
    case MUTT_PAT_DRIVER_TAGS:
    {
      char *tags = driver_tags_get_with_hidden(&e->tags);
      const bool rc = (pat->pat_not ^ (tags && patmatch(pat, tags)));
      FREE(&tags);
      return rc;
    }
    case MUTT_PAT_HORMEL:
      if (!e->env)
        return false;
      return pat->pat_not ^ (e->env->spam.data && patmatch(pat, e->env->spam.data));
    case MUTT_PAT_DUPLICATED:
      return pat->pat_not ^ (e->thread && e->thread->duplicate_thread);
    case MUTT_PAT_MIMEATTACH:
      if (!m)
        return false;
      {
        int count = mutt_count_body_parts(m, e, msg->fp);
        return pat->pat_not ^ (count >= pat->min &&
                               (pat->max == MUTT_MAXRANGE || count <= pat->max));
      }
    case MUTT_PAT_MIMETYPE:
      if (!m)
        return false;
      return pat->pat_not ^ match_mime_content_type(pat, e, msg->fp);
    case MUTT_PAT_UNREFERENCED:
      return pat->pat_not ^ (e->thread && !e->thread->child);
    case MUTT_PAT_BROKEN:
      return pat->pat_not ^ (e->thread && e->thread->fake_thread);
#ifdef USE_NNTP
    case MUTT_PAT_NEWSGROUPS:
      if (!e->env)
        return false;
      return pat->pat_not ^ (e->env->newsgroups && patmatch(pat, e->env->newsgroups));
#endif
  }
  mutt_error(_("error: unknown op %d (report this error)"), pat->op);
  return false;
}

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◆ patmatch()

static bool patmatch	(	const struct Pattern *	pat,
		const char *	buf
	)

static

Compare a string to a Pattern.

Parameters

pat	Pattern to use
buf	String to compare

Return values

true	Match
false	No match

Definition at line 70 of file exec.c.

{
  if (pat->is_multi)
    return (mutt_list_find(&pat->p.multi_cases, buf) != NULL);
  if (pat->string_match)
    return pat->ign_case ? mutt_istr_find(buf, pat->p.str) : strstr(buf, pat->p.str);
  if (pat->group_match)
    return mutt_group_match(pat->p.group, buf);
  return (regexec(pat->p.regex, buf, 0, NULL, 0) == 0);
}

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◆ print_crypt_pattern_op_error()

static void print_crypt_pattern_op_error ( int op )

static

Print an error for a disabled crypto pattern.

Parameters

op	Operation, e.g. MUTT_PAT_CRYPT_SIGN

Definition at line 85 of file exec.c.

{
  const struct PatternFlags *entry = lookup_op(op);
  if (entry)
  {
    /* L10N: One of the crypt pattern operators: ~g, ~G, ~k, ~V
       was invoked when NeoMutt was compiled without crypto support.
       %c is the pattern character, i.e. "g".  */
    mutt_error(_("Pattern operator '~%c' is disabled"), entry->tag);
  }
  else
  {
    /* L10N: An unknown pattern operator was somehow invoked.
       This shouldn't be possible unless there is a bug.  */
    mutt_error(_("error: unknown op %d (report this error)"), op);
  }
}

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◆ msg_search()

static bool msg_search	(	struct Pattern *	pat,
		struct Email *	e,
		struct Message *	msg
	)

static

Search an email.

Parameters

pat	Pattern to find
e	Email
msg	Message

Return values

true	Pattern found
false	Error or pattern not found

Definition at line 111 of file exec.c.

{
  assert(msg);
 
  bool match = false;
 
  FILE *fp = NULL;
  long len = 0;
#ifdef USE_FMEMOPEN
  char *temp = NULL;
  size_t tempsize = 0;
#else
  struct stat st = { 0 };
#endif
 
  const bool needs_head = (pat->op == MUTT_PAT_HEADER) || (pat->op == MUTT_PAT_WHOLE_MSG);
  const bool needs_body = (pat->op == MUTT_PAT_BODY) || (pat->op == MUTT_PAT_WHOLE_MSG);
  const bool c_thorough_search = cs_subset_bool(NeoMutt->sub, "thorough_search");
  if (c_thorough_search)
  {
    /* decode the header / body */
    struct State state = { 0 };
    state.fp_in = msg->fp;
    state.flags = STATE_CHARCONV;
#ifdef USE_FMEMOPEN
    state.fp_out = open_memstream(&temp, &tempsize);
    if (!state.fp_out)
    {
      mutt_perror(_("Error opening 'memory stream'"));
      return false;
    }
#else
    state.fp_out = mutt_file_mkstemp();
    if (!state.fp_out)
    {
      mutt_perror(_("Can't create temporary file"));
      return false;
    }
#endif
 
    if (needs_head)
    {
      mutt_copy_header(msg->fp, e, state.fp_out, CH_FROM | CH_DECODE, NULL, 0);
    }
 
    if (needs_body)
    {
      mutt_parse_mime_message(e, msg->fp);
 
      if ((WithCrypto != 0) && (e->security & SEC_ENCRYPT) &&
          !crypt_valid_passphrase(e->security))
      {
        if (state.fp_out)
        {
          mutt_file_fclose(&state.fp_out);
#ifdef USE_FMEMOPEN
          FREE(&temp);
#endif
        }
        return false;
      }
 
      if (!mutt_file_seek(msg->fp, e->offset, SEEK_SET))
      {
#ifdef USE_FMEMOPEN
        FREE(&temp);
#endif
        return false;
      }
      mutt_body_handler(e->body, &state);
    }
 
#ifdef USE_FMEMOPEN
    mutt_file_fclose(&state.fp_out);
    len = tempsize;
 
    if (tempsize != 0)
    {
      fp = fmemopen(temp, tempsize, "r");
      if (!fp)
      {
        mutt_perror(_("Error re-opening 'memory stream'"));
        FREE(&temp);
        return false;
      }
    }
    else
    { /* fmemopen can't handle empty buffers */
      fp = mutt_file_fopen("/dev/null", "r");
      if (!fp)
      {
        mutt_perror(_("Error opening /dev/null"));
        FREE(&temp);
        return false;
      }
    }
#else
    fp = state.fp_out;
    fflush(fp);
    if (!mutt_file_seek(fp, 0, SEEK_SET) || fstat(fileno(fp), &st))
    {
      mutt_perror(_("Error checking length of temporary file"));
      mutt_file_fclose(&fp);
      return false;
    }
    len = (long) st.st_size;
#endif
  }
  else
  {
    /* raw header / body */
    fp = msg->fp;
    if (needs_head)
    {
      if (!mutt_file_seek(fp, e->offset, SEEK_SET))
      {
        return false;
      }
      len = e->body->offset - e->offset;
    }
    if (needs_body)
    {
      if (pat->op == MUTT_PAT_BODY)
      {
        if (!mutt_file_seek(fp, e->body->offset, SEEK_SET))
        {
          return false;
        }
      }
      len += e->body->length;
    }
  }
 
  /* search the file "fp" */
  if (pat->op == MUTT_PAT_HEADER)
  {
    struct Buffer *buf = buf_pool_get();
    while (len > 0)
    {
      if (mutt_rfc822_read_line(fp, buf) == 0)
      {
        break;
      }
      len -= buf_len(buf);
      if (patmatch(pat, buf_string(buf)))
      {
        match = true;
        break;
      }
    }
    buf_pool_release(&buf);
  }
  else
  {
    char buf[1024] = { 0 };
    while (len > 0)
    {
      if (!fgets(buf, sizeof(buf), fp))
      {
        break; /* don't loop forever */
      }
      len -= mutt_str_len(buf);
      if (patmatch(pat, buf))
      {
        match = true;
        break;
      }
    }
  }
 
  if (c_thorough_search)
    mutt_file_fclose(&fp);
 
#ifdef USE_FMEMOPEN
  FREE(&temp);
#endif
 
  return match;
}

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◆ perform_and()

static bool perform_and	(	struct PatternList *	pat,
		PatternExecFlags	flags,
		struct Mailbox *	m,
		struct Email *	e,
		struct Message *	msg,
		struct PatternCache *	cache
	)

static

Perform a logical AND on a set of Patterns.

Parameters

pat	Patterns to test
flags	Optional flags, e.g. MUTT_MATCH_FULL_ADDRESS
m	Mailbox
e	Email
msg	Message
cache	Cached Patterns

Return values

true	ALL of the Patterns evaluates to true

Definition at line 301 of file exec.c.

{
  struct Pattern *p = NULL;
 
  SLIST_FOREACH(p, pat, entries)
  {
    if (!pattern_exec(p, flags, m, e, msg, cache))
    {
      return false;
    }
  }
  return true;
}

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◆ perform_alias_and()

static bool perform_alias_and	(	struct PatternList *	pat,
		PatternExecFlags	flags,
		struct AliasView *	av,
		struct PatternCache *	cache
	)

static

Perform a logical AND on a set of Patterns.

Parameters

pat	Patterns to test
flags	Optional flags, e.g. MUTT_MATCH_FULL_ADDRESS
av	AliasView
cache	Cached Patterns

Return values

true	ALL of the Patterns evaluate to true

Definition at line 325 of file exec.c.

{
  struct Pattern *p = NULL;
 
  SLIST_FOREACH(p, pat, entries)
  {
    if (!mutt_pattern_alias_exec(p, flags, av, cache))
    {
      return false;
    }
  }
  return true;
}

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◆ perform_or()

static int perform_or	(	struct PatternList *	pat,
		PatternExecFlags	flags,
		struct Mailbox *	m,
		struct Email *	e,
		struct Message *	msg,
		struct PatternCache *	cache
	)

static

Perform a logical OR on a set of Patterns.

Parameters

pat	Patterns to test
flags	Optional flags, e.g. MUTT_MATCH_FULL_ADDRESS
m	Mailbox
e	Email
msg	Message
cache	Cached Patterns

Return values

true	ONE (or more) of the Patterns evaluates to true

Definition at line 350 of file exec.c.

{
  struct Pattern *p = NULL;
 
  SLIST_FOREACH(p, pat, entries)
  {
    if (pattern_exec(p, flags, m, e, msg, cache))
    {
      return true;
    }
  }
  return false;
}

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◆ perform_alias_or()

static int perform_alias_or	(	struct PatternList *	pat,
		PatternExecFlags	flags,
		struct AliasView *	av,
		struct PatternCache *	cache
	)

static

Perform a logical OR on a set of Patterns.

Parameters

pat	Patterns to test
flags	Optional flags, e.g. MUTT_MATCH_FULL_ADDRESS
av	AliasView
cache	Cached Patterns

Return values

true	ONE (or more) of the Patterns evaluates to true

Definition at line 374 of file exec.c.

{
  struct Pattern *p = NULL;
 
  SLIST_FOREACH(p, pat, entries)
  {
    if (mutt_pattern_alias_exec(p, flags, av, cache))
    {
      return true;
    }
  }
  return false;
}

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◆ match_addrlist()

static int match_addrlist	(	struct Pattern *	pat,
		bool	match_personal,
		int	n,
			...
	)

static

Match a Pattern against an Address list.

Parameters

pat	Pattern to find
match_personal	If true, also match the pattern against the real name
n	Number of Addresses supplied
...	Variable number of Addresses

Return values

true	One Address matches (all_addr is false) All the Addresses match (all_addr is true)

Definition at line 399 of file exec.c.

{
  va_list ap;
 
  va_start(ap, n);
  while (n-- > 0)
  {
    struct AddressList *al = va_arg(ap, struct AddressList *);
    struct Address *a = NULL;
    TAILQ_FOREACH(a, al, entries)
    {
      if (pat->all_addr ^
          ((!pat->is_alias || alias_reverse_lookup(a)) &&
           ((a->mailbox && patmatch(pat, buf_string(a->mailbox))) ||
            (match_personal && a->personal && patmatch(pat, buf_string(a->personal))))))
      {
        va_end(ap);
        return !pat->all_addr; /* Found match, or non-match if all_addr */
      }
    }
  }
  va_end(ap);
  return pat->all_addr; /* No matches, or all matches if all_addr */
}

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◆ match_reference()

static bool match_reference	(	struct Pattern *	pat,
		struct ListHead *	refs
	)

static

Match references against a Pattern.

Parameters

pat	Pattern to match
refs	List of References

Return values

true	One of the references matches

Definition at line 430 of file exec.c.

{
  struct ListNode *np = NULL;
  STAILQ_FOREACH(np, refs, entries)
  {
    if (patmatch(pat, np->data))
      return true;
  }
  return false;
}

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◆ mutt_is_predicate_recipient()

static bool mutt_is_predicate_recipient	(	bool	all_addr,
		struct Envelope *	env,
		addr_predicate_t	p
	)

static

Test an Envelopes Addresses using a predicate function.

Parameters

all_addr	If true, ALL Addresses must match
env	Envelope
p	Predicate function, e.g. mutt_is_subscribed_list()

Return values

true	One Address matches (all_addr is false) All the Addresses match (all_addr is true)

Test the 'To' and 'Cc' fields of an Address using a test function (the predicate).

Definition at line 452 of file exec.c.

{
  struct AddressList *als[] = { &env->to, &env->cc };
  for (size_t i = 0; i < mutt_array_size(als); ++i)
  {
    struct AddressList *al = als[i];
    struct Address *a = NULL;
    TAILQ_FOREACH(a, al, entries)
    {
      if (all_addr ^ p(a))
        return !all_addr;
    }
  }
  return all_addr;
}

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◆ mutt_is_subscribed_list_recipient()

bool mutt_is_subscribed_list_recipient	(	bool	all_addr,
		struct Envelope *	env
	)

Matches subscribed mailing lists.

Parameters

all_addr	If true, ALL Addresses must be on the subscribed list
env	Envelope

Return values

true	One Address is subscribed (all_addr is false) All the Addresses are subscribed (all_addr is true)

Definition at line 476 of file exec.c.

{
  return mutt_is_predicate_recipient(all_addr, env, &mutt_is_subscribed_list);
}

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◆ mutt_is_list_recipient()

bool mutt_is_list_recipient	(	bool	all_addr,
		struct Envelope *	env
	)

Matches known mailing lists.

Parameters

all_addr	If true, ALL Addresses must be mailing lists
env	Envelope

Return values

true	One Address is a mailing list (all_addr is false) All the Addresses are mailing lists (all_addr is true)

Definition at line 489 of file exec.c.

{
  return mutt_is_predicate_recipient(all_addr, env, &mutt_is_mail_list);
}

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◆ match_user()

static int match_user	(	bool	all_addr,
		int	n,
			...
	)

static

Matches the user's email Address.

Parameters

all_addr	If true, ALL Addresses must refer to the user
n	number of AddressLists supplied
...	Variable number of AddressLists

Return values

true	One Address refers to the user (all_addr is false) All the Addresses refer to the user (all_addr is true)

Definition at line 503 of file exec.c.

{
  va_list ap;
 
  va_start(ap, n);
  while (n-- > 0)
  {
    struct AddressList *al = va_arg(ap, struct AddressList *);
    struct Address *a = NULL;
    TAILQ_FOREACH(a, al, entries)
    {
      if (all_addr ^ mutt_addr_is_user(a))
      {
        va_end(ap);
        return !all_addr;
      }
    }
  }
  va_end(ap);
  return all_addr;
}

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◆ match_threadcomplete()

static int match_threadcomplete	(	struct PatternList *	pat,
		PatternExecFlags	flags,
		struct Mailbox *	m,
		struct MuttThread *	t,
		int	left,
		int	up,
		int	right,
		int	down
	)

static

Match a Pattern against an email thread.

Parameters

pat	Pattern to match
flags	Flags, e.g. MUTT_MATCH_FULL_ADDRESS
m	Mailbox
t	Email thread
left	Navigate to the previous email
up	Navigate to the email's parent
right	Navigate to the next email
down	Navigate to the email's children

Return values

1	Success, match found
0	No match

Definition at line 538 of file exec.c.

{
  if (!t)
    return 0;
 
  int a;
  struct Email *e = t->message;
  if (e)
    if (mutt_pattern_exec(SLIST_FIRST(pat), flags, m, e, NULL))
      return 1;
 
  if (up && (a = match_threadcomplete(pat, flags, m, t->parent, 1, 1, 1, 0)))
    return a;
  if (right && t->parent && (a = match_threadcomplete(pat, flags, m, t->next, 0, 0, 1, 1)))
  {
    return a;
  }
  if (left && t->parent && (a = match_threadcomplete(pat, flags, m, t->prev, 1, 0, 0, 1)))
  {
    return a;
  }
  if (down && (a = match_threadcomplete(pat, flags, m, t->child, 1, 0, 1, 1)))
    return a;
  return 0;
}

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◆ match_threadparent()

static int match_threadparent	(	struct PatternList *	pat,
		PatternExecFlags	flags,
		struct Mailbox *	m,
		struct MuttThread *	t
	)

static

Match Pattern against an email's parent.

Parameters

pat	Pattern to match
flags	Flags, e.g. MUTT_MATCH_FULL_ADDRESS
m	Mailbox
t	Thread of email

Return values

1	Success, pattern matched
0	Pattern did not match
-1	Error

Definition at line 576 of file exec.c.

{
  if (!t || !t->parent || !t->parent->message)
    return 0;
 
  return mutt_pattern_exec(SLIST_FIRST(pat), flags, m, t->parent->message, NULL);
}

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◆ match_threadchildren()

static int match_threadchildren	(	struct PatternList *	pat,
		PatternExecFlags	flags,
		struct Mailbox *	m,
		struct MuttThread *	t
	)

static

Match Pattern against an email's children.

Parameters

pat	Pattern to match
flags	Flags, e.g. MUTT_MATCH_FULL_ADDRESS
m	Mailbox
t	Thread of email

Return values

1	Success, pattern matched
0	Pattern did not match
-1	Error

Definition at line 595 of file exec.c.

{
  if (!t || !t->child)
    return 0;
 
  for (t = t->child; t; t = t->next)
    if (t->message && mutt_pattern_exec(SLIST_FIRST(pat), flags, m, t->message, NULL))
      return 1;
 
  return 0;
}

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◆ match_content_type()

static bool match_content_type	(	const struct Pattern *	pat,
		struct Body *	b
	)

static

Match a Pattern against an Attachment's Content-Type.

Parameters

pat	Pattern to match
b	Attachment

Return values

true	Success, pattern matched
false	Pattern did not match

Definition at line 615 of file exec.c.

{
  if (!b)
    return false;
 
  char buf[256] = { 0 };
  snprintf(buf, sizeof(buf), "%s/%s", TYPE(b), b->subtype);
 
  if (patmatch(pat, buf))
    return true;
  if (match_content_type(pat, b->parts))
    return true;
  if (match_content_type(pat, b->next))
    return true;
  return false;
}

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◆ match_mime_content_type()

static bool match_mime_content_type	(	const struct Pattern *	pat,
		struct Email *	e,
		FILE *	fp
	)

static

Match a Pattern against an email's Content-Type.

Parameters

pat	Pattern to match
e	Email
fp	Message file

Return values

true	Success, pattern matched
false	Pattern did not match

Definition at line 640 of file exec.c.

{
  mutt_parse_mime_message(e, fp);
  return match_content_type(pat, e->body);
}

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◆ match_update_dynamic_date()

static bool match_update_dynamic_date ( struct Pattern * pat )

static

Update a dynamic date pattern.

Parameters

pat	Pattern to modify

Return values

true	Pattern valid and updated
false	Pattern invalid

Definition at line 652 of file exec.c.

{
  struct Buffer *err = buf_pool_get();
 
  bool rc = eval_date_minmax(pat, pat->p.str, err);
  buf_pool_release(&err);
 
  return rc;
}

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◆ set_pattern_cache_value()

static void set_pattern_cache_value	(	int *	cache_entry,
		int	value
	)

static

Sets a value in the PatternCache cache entry.

Parameters

cache_entry	Cache entry to update
value	Value to set

Normalizes the "true" value to 2.

Definition at line 669 of file exec.c.

{
  *cache_entry = (value != 0) ? 2 : 1;
}

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◆ get_pattern_cache_value()

static bool get_pattern_cache_value ( int cache_entry )

static

Get pattern cache value.

Parameters

cache_entry Cache entry to get

Return values

1	The cache value is set and has a true value
0	otherwise (even if unset!)

Definition at line 680 of file exec.c.

{
  return cache_entry == 2;
}

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◆ is_pattern_cache_set()

static int is_pattern_cache_set ( int cache_entry )

static

Is a given Pattern cached?

Parameters

cache_entry Cache entry to check

Return values

true	Pattern is cached

Definition at line 690 of file exec.c.

{
  return cache_entry != 0;
}

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◆ msg_search_sendmode()

static int msg_search_sendmode	(	struct Email *	e,
		struct Pattern *	pat
	)

static

Search in send-mode.

Parameters

e	Email to search
pat	Pattern to find

Return values

1	Success, pattern matched
0	Pattern did not match
-1	Error

Definition at line 703 of file exec.c.

{
  bool match = false;
  char *buf = NULL;
  size_t blen = 0;
  FILE *fp = NULL;
 
  if ((pat->op == MUTT_PAT_HEADER) || (pat->op == MUTT_PAT_WHOLE_MSG))
  {
    struct Buffer *tempfile = buf_pool_get();
    buf_mktemp(tempfile);
    fp = mutt_file_fopen(buf_string(tempfile), "w+");
    if (!fp)
    {
      mutt_perror("%s", buf_string(tempfile));
      buf_pool_release(&tempfile);
      return 0;
    }
 
    mutt_rfc822_write_header(fp, e->env, e->body, MUTT_WRITE_HEADER_POSTPONE,
                             false, false, NeoMutt->sub);
    fflush(fp);
    if (mutt_file_seek(fp, 0, SEEK_SET))
    {
      while ((buf = mutt_file_read_line(buf, &blen, fp, NULL, MUTT_RL_NO_FLAGS)) != NULL)
      {
        if (patmatch(pat, buf) == 0)
        {
          match = true;
          break;
        }
      }
    }
 
    FREE(&buf);
    mutt_file_fclose(&fp);
    unlink(buf_string(tempfile));
    buf_pool_release(&tempfile);
 
    if (match)
      return match;
  }
 
  if ((pat->op == MUTT_PAT_BODY) || (pat->op == MUTT_PAT_WHOLE_MSG))
  {
    fp = mutt_file_fopen(e->body->filename, "r");
    if (!fp)
    {
      mutt_perror("%s", e->body->filename);
      return 0;
    }
 
    while ((buf = mutt_file_read_line(buf, &blen, fp, NULL, MUTT_RL_NO_FLAGS)) != NULL)
    {
      if (patmatch(pat, buf) == 0)
      {
        match = true;
        break;
      }
    }
 
    FREE(&buf);
    mutt_file_fclose(&fp);
  }
 
  return match;
}

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◆ pattern_needs_msg()

static bool pattern_needs_msg	(	const struct Mailbox *	m,
		const struct Pattern *	pat
	)

static

Check whether a pattern needs a full message.

Parameters

m	Mailbox
pat	Pattern

Return values

true	The pattern needs a full message
false	The pattern does not need a full message

Definition at line 778 of file exec.c.

{
  if ((pat->op == MUTT_PAT_MIMETYPE) || (pat->op == MUTT_PAT_MIMEATTACH))
  {
    return true;
  }
 
  if ((pat->op == MUTT_PAT_WHOLE_MSG) || (pat->op == MUTT_PAT_BODY) || (pat->op == MUTT_PAT_HEADER))
  {
#ifdef USE_IMAP
    return !((m->type == MUTT_IMAP) && pat->string_match);
#else
    return true;
#endif
  }
 
  if ((pat->op == MUTT_PAT_AND) || (pat->op == MUTT_PAT_OR))
  {
    struct Pattern *p = NULL;
    SLIST_FOREACH(p, pat->child, entries)
    {
      if (pattern_needs_msg(m, p))
      {
        return true;
      }
    }
  }
 
  return false;
}

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◆ mutt_pattern_exec()

bool mutt_pattern_exec	(	struct Pattern *	pat,
		PatternExecFlags	flags,
		struct Mailbox *	m,
		struct Email *	e,
		struct PatternCache *	cache
	)

Match a pattern against an email header.

Parameters

pat	Pattern to match
flags	Flags, e.g. MUTT_MATCH_FULL_ADDRESS
m	Mailbox
e	Email
cache	Cache for common Patterns

Return values

true	Success, pattern matched
false	Pattern did not match

flags: MUTT_MATCH_FULL_ADDRESS: match both personal and machine address cache: For repeated matches against the same Header, passing in non-NULL will store some of the cacheable pattern matches in this structure.

Definition at line 1137 of file exec.c.

{
  const bool needs_msg = pattern_needs_msg(m, pat);
  struct Message *msg = needs_msg ? mx_msg_open(m, e) : NULL;
  if (needs_msg && !msg)
  {
    return false;
  }
  const bool matched = pattern_exec(pat, flags, m, e, msg, cache);
  mx_msg_close(m, &msg);
  return matched;
}

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◆ mutt_pattern_alias_exec()

bool mutt_pattern_alias_exec	(	struct Pattern *	pat,
		PatternExecFlags	flags,
		struct AliasView *	av,
		struct PatternCache *	cache
	)

Match a pattern against an alias.

Parameters

pat	Pattern to match
flags	Flags, e.g. MUTT_MATCH_FULL_ADDRESS
av	AliasView
cache	Cache for common Patterns

Return values

true	Success, pattern matched
false	Pattern did not match

flags: MUTT_MATCH_FULL_ADDRESS: match both personal and machine address cache: For repeated matches against the same Alias, passing in non-NULL will store some of the cacheable pattern matches in this structure.

Definition at line 1164 of file exec.c.

{
  switch (pat->op)
  {
    case MUTT_PAT_FROM: /* alias */
      if (!av->alias)
        return false;
      return pat->pat_not ^ (av->alias->name && patmatch(pat, av->alias->name));
    case MUTT_PAT_CC: /* comment */
      if (!av->alias)
        return false;
      return pat->pat_not ^ (av->alias->comment && patmatch(pat, av->alias->comment));
    case MUTT_PAT_TO: /* alias address list */
      if (!av->alias)
        return false;
      return pat->pat_not ^ match_addrlist(pat, (flags & MUTT_MATCH_FULL_ADDRESS),
                                           1, &av->alias->addr);
    case MUTT_PAT_AND:
      return pat->pat_not ^ (perform_alias_and(pat->child, flags, av, cache) > 0);
    case MUTT_PAT_OR:
      return pat->pat_not ^ (perform_alias_or(pat->child, flags, av, cache) > 0);
  }
 
  return false;
}

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Functions

Detailed Description

Function Documentation

◆ pattern_exec()

◆ patmatch()

◆ print_crypt_pattern_op_error()

◆ msg_search()

◆ perform_and()

◆ perform_alias_and()

◆ perform_or()

◆ perform_alias_or()

◆ match_addrlist()

◆ match_reference()

◆ mutt_is_predicate_recipient()

◆ mutt_is_subscribed_list_recipient()

◆ mutt_is_list_recipient()

◆ match_user()

◆ match_threadcomplete()

◆ match_threadparent()

◆ match_threadchildren()

◆ match_content_type()

◆ match_mime_content_type()

◆ match_update_dynamic_date()

◆ set_pattern_cache_value()

◆ get_pattern_cache_value()

◆ is_pattern_cache_set()

◆ msg_search_sendmode()

◆ pattern_needs_msg()

◆ mutt_pattern_exec()

◆ mutt_pattern_alias_exec()