-/* $Cambridge: exim/src/src/sieve.c,v 1.28 2007/04/19 13:19:06 ph10 Exp $ */
-
/*************************************************
* Exim - an Internet mail transport agent *
*************************************************/
-/* Copyright (c) Michael Haardt 2003-2006 */
+/* Copyright (c) Michael Haardt 2003 - 2015 */
/* See the file NOTICE for conditions of use and distribution. */
/* This code was contributed by Michael Haardt. */
#undef RFC_EOL
/* Define this for development of the Sieve extension "encoded-character". */
-#undef ENCODED_CHARACTER
+#define ENCODED_CHARACTER
/* Define this for development of the Sieve extension "envelope-auth". */
#undef ENVELOPE_AUTH
/* Define this for development of the Sieve extension "enotify". */
-#undef ENOTIFY
+#define ENOTIFY
/* Define this for the Sieve extension "subaddress". */
#define SUBADDRESS
int require_enotify;
struct Notification *notified;
#endif
+ uschar *enotify_mailto_owner;
#ifdef SUBADDRESS
int require_subaddress;
#endif
struct Notification *next;
};
+/* This should be a complete list of supported extensions, so that an external
+ManageSieve (RFC 5804) program can interrogate the current Exim binary for the
+list of extensions and provide correct information to a client.
+
+We'll emit the list in the order given here; keep it alphabetically sorted, so
+that callers don't get surprised.
+
+List *MUST* end with a NULL. Which at least makes ifdef-vs-comma easier. */
+
+const uschar *exim_sieve_extension_list[] = {
+ CUS"comparator-i;ascii-numeric",
+ CUS"copy",
+#ifdef ENCODED_CHARACTER
+ CUS"encoded-character",
+#endif
+#ifdef ENOTIFY
+ CUS"enotify",
+#endif
+ CUS"envelope",
+#ifdef ENVELOPE_AUTH
+ CUS"envelope-auth",
+#endif
+ CUS"fileinto",
+#ifdef SUBADDRESS
+ CUS"subaddress",
+#endif
+#ifdef VACATION
+ CUS"vacation",
+#endif
+ NULL
+};
+
static int eq_asciicase(const struct String *needle, const struct String *haystack, int match_prefix);
static int parse_test(struct Sieve *filter, int *cond, int exec);
static int parse_commands(struct Sieve *filter, int exec, address_item **generated);
#ifdef ENOTIFY
static uschar str_enotify_c[]="enotify";
static const struct String str_enotify={ str_enotify_c, 7 };
+static uschar str_online_c[]="online";
+static const struct String str_online={ str_online_c, 6 };
+static uschar str_maybe_c[]="maybe";
+static const struct String str_maybe={ str_maybe_c, 5 };
+static uschar str_auto_submitted_c[]="Auto-Submitted";
+static const struct String str_auto_submitted={ str_auto_submitted_c, 14 };
#endif
#ifdef SUBADDRESS
static uschar str_subaddress_c[]="subaddress";
-1 syntax error
*/
-static int parse_mailto_uri(struct Sieve *filter, const uschar *uri, string_item **recipient, struct String *header, struct String *body)
+static int parse_mailto_uri(struct Sieve *filter, const uschar *uri, string_item **recipient, struct String *header, struct String *subject, struct String *body)
{
const uschar *start;
struct String to,hname,hvalue;
if (uri>start)
{
capacity=0;
- to.character=(uschar*)0;
+ to.character= NULL;
to.length=0;
to.character=string_cat(to.character,&capacity,&to.length,start,uri-start);
to.character[to.length]='\0';
if (uri>start)
{
capacity=0;
- hname.character=(uschar*)0;
+ hname.character= NULL;
hname.length=0;
hname.character=string_cat(hname.character,&capacity,&hname.length,start,uri-start);
hname.character[hname.length]='\0';
if (uri>start)
{
capacity=0;
- hvalue.character=(uschar*)0;
+ hvalue.character= NULL;
hvalue.length=0;
hvalue.character=string_cat(hvalue.character,&capacity,&hvalue.length,start,uri-start);
hvalue.character[hvalue.length]='\0';
}
else if (hname.length==4 && strcmpic(hname.character, US"body")==0)
*body=hvalue;
+ else if (hname.length==7 && strcmpic(hname.character, US"subject")==0)
+ *subject=hvalue;
else
{
static struct String ignore[]=
{
+ {US"date",4},
{US"from",4},
- {US"subject",7},
- {US"received",8}
+ {US"message-id",10},
+ {US"received",8},
+ {US"auto-submitted",14}
};
static struct String *end=ignore+sizeof(ignore)/sizeof(ignore[0]);
struct String *i;
/*
Arguments:
- needle pattern to search ...
- haystack ... inside the haystack
+ needle pattern to search ...
+ haystack ... inside the haystack
+ ascii_caseless ignore ASCII case
+ match_octet match octets, not UTF-8 multi-octet characters
Returns: 0 needle not found in haystack
1 needle found
*************************************************/
/*
-According to RFC 3028, duplicate delivery to the same address must
+According to RFC 5228, duplicate delivery to the same address must
not happen, so the list is first searched for the address.
Arguments:
setflag(new_addr, af_pfr|af_file);
new_addr->mode = 0;
}
-new_addr->p.errors_address = NULL;
+new_addr->prop.errors_address = NULL;
new_addr->next = *generated;
*generated = new_addr;
}
}
else if (*filter->pc=='\\' && *(filter->pc+1)) /* quoted character */
{
- if (*(filter->pc+1)=='0') data->character=string_cat(data->character,&dataCapacity,&data->length,CUS "",1);
- else data->character=string_cat(data->character,&dataCapacity,&data->length,filter->pc+1,1);
+ data->character=string_cat(data->character,&dataCapacity,&data->length,filter->pc+1,1);
filter->pc+=2;
}
else /* regular character */
Arguments:
filter points to the Sieve filter including its state
n total number of tests
- true number of passed tests
+ num_true number of passed tests
exec Execute parsed statements
Returns: 1 success
-1 syntax or execution error
*/
-static int parse_testlist(struct Sieve *filter, int *n, int *true, int exec)
+static int parse_testlist(struct Sieve *filter, int *n, int *num_true, int exec)
{
if (parse_white(filter)==-1) return -1;
if (*filter->pc=='(')
{
++filter->pc;
*n=0;
- *true=0;
+ *num_true=0;
for (;;)
{
int cond;
{
case -1: return -1;
case 0: filter->errmsg=CUS "missing test"; return -1;
- default: ++*n; if (cond) ++*true; break;
+ default: ++*n; if (cond) ++*num_true; break;
}
if (parse_white(filter)==-1) return -1;
if (*filter->pc==',') ++filter->pc;
allof-test = "allof" <tests: test-list>
*/
- int n,true;
+ int n,num_true;
- switch (parse_testlist(filter,&n,&true,exec))
+ switch (parse_testlist(filter,&n,&num_true,exec))
{
case -1: return -1;
case 0: filter->errmsg=CUS "missing test list"; return -1;
- default: *cond=(n==true); return 1;
+ default: *cond=(n==num_true); return 1;
}
}
else if (parse_identifier(filter,CUS "anyof"))
anyof-test = "anyof" <tests: test-list>
*/
- int n,true;
+ int n,num_true;
- switch (parse_testlist(filter,&n,&true,exec))
+ switch (parse_testlist(filter,&n,&num_true,exec))
{
case -1: return -1;
case 0: filter->errmsg=CUS "missing test list"; return -1;
- default: *cond=(true>0); return 1;
+ default: *cond=(num_true>0); return 1;
}
}
else if (parse_identifier(filter,CUS "exists"))
return 1;
}
#ifdef ENOTIFY
-else if (parse_identifier(filter,CUS "valid_notif_method"))
+else if (parse_identifier(filter,CUS "valid_notify_method"))
{
/*
- valid_notif_method = "valid_notif_method"
- <notification-uris: string-list>
+ valid_notify_method = "valid_notify_method"
+ <notification-uris: string-list>
*/
struct String *uris,*u;
for (u=uris; u->length!=-1 && *cond; ++u)
{
string_item *recipient;
- struct String header,body;
+ struct String header,subject,body;
recipient=NULL;
header.length=-1;
header.character=(uschar*)0;
+ subject.length=-1;
+ subject.character=(uschar*)0;
body.length=-1;
body.character=(uschar*)0;
- if (parse_mailto_uri(filter,u->character,&recipient,&header,&body)!=1)
+ if (parse_mailto_uri(filter,u->character,&recipient,&header,&subject,&body)!=1)
*cond=0;
}
}
return 1;
}
+else if (parse_identifier(filter,CUS "notify_method_capability"))
+ {
+ /*
+ notify_method_capability = "notify_method_capability" [COMPARATOR] [MATCH-TYPE]
+ <notification-uri: string>
+ <notification-capability: string>
+ <key-list: string-list>
+ */
+
+ int m;
+ int co=0,mt=0;
+
+ enum Comparator comparator=COMP_EN_ASCII_CASEMAP;
+ enum MatchType matchType=MATCH_IS;
+ struct String uri,capa,*keys,*k;
+
+ if (!filter->require_enotify)
+ {
+ filter->errmsg=CUS "missing previous require \"enotify\";";
+ return -1;
+ }
+ for (;;)
+ {
+ if (parse_white(filter)==-1) return -1;
+ if ((m=parse_comparator(filter,&comparator))!=0)
+ {
+ if (m==-1) return -1;
+ if (co)
+ {
+ filter->errmsg=CUS "comparator already specified";
+ return -1;
+ }
+ else co=1;
+ }
+ else if ((m=parse_matchtype(filter,&matchType))!=0)
+ {
+ if (m==-1) return -1;
+ if (mt)
+ {
+ filter->errmsg=CUS "match type already specified";
+ return -1;
+ }
+ else mt=1;
+ }
+ else break;
+ }
+ if ((m=parse_string(filter,&uri))!=1)
+ {
+ if (m==0) filter->errmsg=CUS "missing notification URI string";
+ return -1;
+ }
+ if (parse_white(filter)==-1) return -1;
+ if ((m=parse_string(filter,&capa))!=1)
+ {
+ if (m==0) filter->errmsg=CUS "missing notification capability string";
+ return -1;
+ }
+ if (parse_white(filter)==-1) return -1;
+ if ((m=parse_stringlist(filter,&keys))!=1)
+ {
+ if (m==0) filter->errmsg=CUS "missing key string list";
+ return -1;
+ }
+ if (exec)
+ {
+ string_item *recipient;
+ struct String header,subject,body;
+
+ *cond=0;
+ recipient=NULL;
+ header.length=-1;
+ header.character=(uschar*)0;
+ subject.length=-1;
+ subject.character=(uschar*)0;
+ body.length=-1;
+ body.character=(uschar*)0;
+ if (parse_mailto_uri(filter,uri.character,&recipient,&header,&subject,&body)==1)
+ {
+ if (eq_asciicase(&capa,&str_online,0)==1)
+ for (k=keys; k->length!=-1; ++k)
+ {
+ *cond=compare(filter,k,&str_maybe,comparator,matchType);
+ if (*cond==-1) return -1;
+ if (*cond) break;
+ }
+ }
+ }
+ return 1;
+ }
#endif
else return 0;
}
1 other success
-1 syntax or execution error
*/
-static int parse_commands(struct Sieve *filter, int exec,
- address_item **generated)
+static int
+parse_commands(struct Sieve *filter, int exec, address_item **generated)
{
while (*filter->pc)
{
int m;
struct String from;
struct String importance;
- struct String *options;
struct String message;
struct String method;
struct Notification *already;
string_item *recipient;
struct String header;
+ struct String subject;
struct String body;
- uschar *envelope_from,*envelope_to;
+ uschar *envelope_from;
+ struct String auto_submitted_value;
+ uschar *auto_submitted_def;
if (!filter->require_enotify)
{
from.length=-1;
importance.character=(uschar*)0;
importance.length=-1;
- options=(struct String*)0;
message.character=(uschar*)0;
message.length=-1;
recipient=NULL;
header.length=-1;
header.character=(uschar*)0;
+ subject.length=-1;
+ subject.character=(uschar*)0;
body.length=-1;
body.character=(uschar*)0;
- envelope_from=expand_string("$sender_address");
- envelope_to=expand_string("$local_part_prefix$local_part$local_part_suffix@$domain");
+ envelope_from=(sender_address && sender_address[0]) ? expand_string(US"$local_part_prefix$local_part$local_part_suffix@$domain") : US "";
for (;;)
{
if (parse_white(filter)==-1) return -1;
return -1;
}
if (parse_semicolon(filter)==-1) return -1;
-
- for (already=filter->notified; already; already=already->next)
- {
- if (already->method.length==method.length
- && (method.length==-1 || strcmp(already->method.character,method.character)==0)
- && already->importance.length==importance.length
- && (importance.length==-1 || strcmp(already->importance.character,importance.character)==0)
- && already->message.length==message.length
- && (message.length==-1 || strcmp(already->message.character,message.character)==0))
- break;
- }
- if (already==(struct Notification*)0)
- /* New notification, process it */
+ if (parse_mailto_uri(filter,method.character,&recipient,&header,&subject,&body)!=1)
+ return -1;
+ if (exec)
{
- if (parse_mailto_uri(filter,method.character,&recipient,&header,&body)!=1)
- return -1;
- struct Notification *sent;
- sent=store_get(sizeof(struct Notification));
- sent->method=method;
- sent->importance=importance;
- sent->message=message;
- sent->next=filter->notified;
- filter->notified=sent;
- if ((filter_test != FTEST_NONE && debug_selector != 0) || (debug_selector & D_filter) != 0)
+ if (message.length==-1) message=subject;
+ if (message.length==-1) expand_header(&message,&str_subject);
+ expand_header(&auto_submitted_value,&str_auto_submitted);
+ auto_submitted_def=expand_string(string_sprintf("${if def:header_auto-submitted {true}{false}}"));
+ if (auto_submitted_value.character == NULL || auto_submitted_def == NULL)
{
- debug_printf("Notification to `%s'.\n",method.character);
+ filter->errmsg=CUS "header string expansion failed";
+ return -1;
}
-#ifndef COMPILE_SYNTAX_CHECKER
- if (exec && filter_test == FTEST_NONE)
+ if (Ustrcmp(auto_submitted_def,"true")!=0 || Ustrcmp(auto_submitted_value.character,"no")==0)
{
- string_item *p;
- header_line *h;
- int pid,fd;
+ for (already=filter->notified; already; already=already->next)
+ {
+ if (already->method.length==method.length
+ && (method.length==-1 || Ustrcmp(already->method.character,method.character)==0)
+ && already->importance.length==importance.length
+ && (importance.length==-1 || Ustrcmp(already->importance.character,importance.character)==0)
+ && already->message.length==message.length
+ && (message.length==-1 || Ustrcmp(already->message.character,message.character)==0))
+ break;
+ }
+ if (already==(struct Notification*)0)
+ /* New notification, process it */
+ {
+ struct Notification *sent;
+ sent=store_get(sizeof(struct Notification));
+ sent->method=method;
+ sent->importance=importance;
+ sent->message=message;
+ sent->next=filter->notified;
+ filter->notified=sent;
+ #ifndef COMPILE_SYNTAX_CHECKER
+ if (filter_test == FTEST_NONE)
+ {
+ string_item *p;
+ int pid,fd;
- if ((pid = child_open_exim2(&fd,envelope_to,envelope_to))>=1)
+ if ((pid = child_open_exim2(&fd,envelope_from,envelope_from))>=1)
+ {
+ FILE *f;
+ uschar *buffer;
+ int buffer_capacity;
+
+ f = fdopen(fd, "wb");
+ fprintf(f,"From: %s\n",from.length==-1 ? expand_string(US"$local_part_prefix$local_part$local_part_suffix@$domain") : from.character);
+ for (p=recipient; p; p=p->next) fprintf(f,"To: %s\n",p->text);
+ fprintf(f,"Auto-Submitted: auto-notified; %s\n",filter->enotify_mailto_owner);
+ if (header.length>0) fprintf(f,"%s",header.character);
+ if (message.length==-1)
+ {
+ message.character=US"Notification";
+ message.length=Ustrlen(message.character);
+ }
+ /* Allocation is larger than neccessary, but enough even for split MIME words */
+ buffer_capacity=32+4*message.length;
+ buffer=store_get(buffer_capacity);
+ if (message.length!=-1) fprintf(f,"Subject: %s\n",parse_quote_2047(message.character, message.length, US"utf-8", buffer, buffer_capacity, TRUE));
+ fprintf(f,"\n");
+ if (body.length>0) fprintf(f,"%s\n",body.character);
+ fflush(f);
+ (void)fclose(f);
+ (void)child_close(pid, 0);
+ }
+ }
+ if ((filter_test != FTEST_NONE && debug_selector != 0) || (debug_selector & D_filter) != 0)
+ {
+ debug_printf("Notification to `%s': '%s'.\n",method.character,message.length!=-1 ? message.character : CUS "");
+ }
+#endif
+ }
+ else
{
- FILE *f;
- uschar *buffer;
- int buffer_capacity;
-
- f = fdopen(fd, "wb");
- for (h = header_list; h != NULL; h = h->next)
- if (h->type == htype_received) fprintf(f,"%s",h->text);
- fprintf(f,"From: %s\n",from.length==-1 ? envelope_to : from.character);
- for (p=recipient; p; p=p->next) fprintf(f,"To: %s\n",p->text);
- if (header.length>0) fprintf(f,"%s",header.character);
- if (message.length==-1)
+ if ((filter_test != FTEST_NONE && debug_selector != 0) || (debug_selector & D_filter) != 0)
{
- message.character=US"Notification";
- message.length=Ustrlen(message.character);
+ debug_printf("Repeated notification to `%s' ignored.\n",method.character);
}
- /* Allocation is larger than neccessary, but enough even for split MIME words */
- buffer_capacity=32+4*message.length;
- buffer=store_get(buffer_capacity);
- fprintf(f,"Subject: %s\n\n",parse_quote_2047(message.character, message.length, US"utf-8", buffer, buffer_capacity, TRUE));
- if (body.length>0) fprintf(f,"%s\n",body.character);
- fflush(f);
- (void)fclose(f);
- (void)child_close(pid, 0);
}
}
-#endif
- }
- else
- {
- if ((filter_test != FTEST_NONE && debug_selector != 0) || (debug_selector & D_filter) != 0)
+ else
{
- debug_printf("Repeated notification to `%s' ignored.\n",method.character);
+ if ((filter_test != FTEST_NONE && debug_selector != 0) || (debug_selector & D_filter) != 0)
+ {
+ debug_printf("Ignoring notification, triggering message contains Auto-submitted: field.\n");
+ }
}
}
}
/* Allocation is larger than neccessary, but enough even for split MIME words */
buffer_capacity=32+4*subject.length;
buffer=store_get(buffer_capacity);
- addr->reply->subject=parse_quote_2047(subject.character, subject.length, US"utf-8", buffer, buffer_capacity, TRUE);
+ /* deconst cast safe as we pass in a non-const item */
+ addr->reply->subject = US parse_quote_2047(subject.character, subject.length, US"utf-8", buffer, buffer_capacity, TRUE);
addr->reply->oncelog=once;
addr->reply->once_repeat=days*86400;
-1 syntax or execution error
*/
-static int parse_start(struct Sieve *filter, int exec,
- address_item **generated)
+static int
+parse_start(struct Sieve *filter, int exec, address_item **generated)
{
filter->pc=filter->filter;
filter->line=1;
else if (eq_octet(check,&str_envelope_auth,0)) filter->require_envelope_auth=1;
#endif
#ifdef ENOTIFY
- else if (eq_octet(check,&str_enotify,0)) filter->require_enotify=1;
+ else if (eq_octet(check,&str_enotify,0))
+ {
+ if (filter->enotify_mailto_owner == NULL)
+ {
+ filter->errmsg=CUS "enotify disabled";
+ return -1;
+ }
+ filter->require_enotify=1;
+ }
#endif
#ifdef SUBADDRESS
else if (eq_octet(check,&str_subaddress,0)) filter->require_subaddress=1;
filter points to the entire file, read into store as a single string
options controls whether various special things are allowed, and requests
special actions (not currently used)
- sieve_vacation_directory where to store vacation "once" files
+ vacation_directory where to store vacation "once" files
+ enotify_mailto_owner owner of mailto notifications
useraddress string expression for :user part of address
subaddress string expression for :subaddress part of address
generated where to hang newly-generated addresses
int
sieve_interpret(uschar *filter, int options, uschar *vacation_directory,
- uschar *useraddress, uschar *subaddress, address_item **generated, uschar **error)
+ uschar *enotify_mailto_owner, uschar *useraddress, uschar *subaddress,
+ address_item **generated, uschar **error)
{
struct Sieve sieve;
int r;
}
}
+if (enotify_mailto_owner == NULL)
+ sieve.enotify_mailto_owner = NULL;
+else
+ {
+ sieve.enotify_mailto_owner=expand_string(enotify_mailto_owner);
+ if (sieve.enotify_mailto_owner == NULL)
+ {
+ *error = string_sprintf("failed to expand \"%s\" "
+ "(sieve_enotify_mailto_owner): %s", enotify_mailto_owner,
+ expand_string_message);
+ return FF_ERROR;
+ }
+ }
+
sieve.useraddress = useraddress == NULL ? CUS "$local_part_prefix$local_part$local_part_suffix" : useraddress;
sieve.subaddress = subaddress;
projects / exim.git / blobdiff