X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/c3aea640e1d51e0eab69cde6a3dc8b30e41cbf9c..ade4247855998c3d344382b9bb2a13ff0c5a8921:/src/src/sieve.c diff --git a/src/src/sieve.c b/src/src/sieve.c index b5053c796..296a23c2d 100644 --- a/src/src/sieve.c +++ b/src/src/sieve.c @@ -1,10 +1,10 @@ -/* $Cambridge: exim/src/src/sieve.c,v 1.5 2005/02/15 15:48:46 ph10 Exp $ */ +/* $Cambridge: exim/src/src/sieve.c,v 1.12 2005/06/17 10:47:05 ph10 Exp $ */ /************************************************* * Exim - an Internet mail transport agent * *************************************************/ -/* Copyright (c) Michael Haardt 2003,2004 */ +/* Copyright (c) Michael Haardt 2003-2005 */ /* See the file NOTICE for conditions of use and distribution. */ /* This code was contributed by Michael Haardt. */ @@ -29,8 +29,7 @@ #undef RFC_EOL /* Define this for development of the subaddress Sieve extension. */ -/* The code is currently broken. */ -#undef SUBADDRESS +#define SUBADDRESS /* Define this for the vacation Sieve extension. */ #define VACATION @@ -61,11 +60,13 @@ struct Sieve int vacation_ran; #endif uschar *vacation_directory; + const uschar *subaddress; + const uschar *useraddress; int require_copy; int require_iascii_numeric; }; -enum Comparator { COMP_OCTET, COMP_ASCII_CASEMAP, COMP_ASCII_NUMERIC }; +enum Comparator { COMP_OCTET, COMP_EN_ASCII_CASEMAP, COMP_ASCII_NUMERIC }; enum MatchType { MATCH_IS, MATCH_CONTAINS, MATCH_MATCHES }; #ifdef SUBADDRESS enum AddressPart { ADDRPART_USER, ADDRPART_DETAIL, ADDRPART_LOCALPART, ADDRPART_DOMAIN, ADDRPART_ALL }; @@ -115,12 +116,16 @@ static uschar str_copy_c[]="copy"; static const struct String str_copy={ str_copy_c, 4 }; static uschar str_iascii_casemap_c[]="i;ascii-casemap"; static const struct String str_iascii_casemap={ str_iascii_casemap_c, 15 }; +static uschar str_enascii_casemap_c[]="en;ascii-casemap"; +static const struct String str_enascii_casemap={ str_enascii_casemap_c, 16 }; static uschar str_ioctet_c[]="i;octet"; static const struct String str_ioctet={ str_ioctet_c, 7 }; static uschar str_iascii_numeric_c[]="i;ascii-numeric"; static const struct String str_iascii_numeric={ str_iascii_numeric_c, 15 }; static uschar str_comparator_iascii_casemap_c[]="comparator-i;ascii-casemap"; static const struct String str_comparator_iascii_casemap={ str_comparator_iascii_casemap_c, 26 }; +static uschar str_comparator_enascii_casemap_c[]="comparator-en;ascii-casemap"; +static const struct String str_comparator_enascii_casemap={ str_comparator_enascii_casemap_c, 27 }; static uschar str_comparator_ioctet_c[]="comparator-i;octet"; static const struct String str_comparator_ioctet={ str_comparator_ioctet_c, 18 }; static uschar str_comparator_iascii_numeric_c[]="comparator-i;ascii-numeric"; @@ -644,7 +649,7 @@ if ((filter_test != FTEST_NONE && debug_selector != 0) || switch (co) { case COMP_OCTET: debug_printf("i;octet"); break; - case COMP_ASCII_CASEMAP: debug_printf("i;ascii-casemap"); break; + case COMP_EN_ASCII_CASEMAP: debug_printf("en;ascii-casemap"); break; case COMP_ASCII_NUMERIC: debug_printf("i;ascii-numeric"); break; } debug_printf("\"):\n"); @@ -662,7 +667,7 @@ switch (mt) if (eq_octet(needle,haystack,0)) r=1; break; } - case COMP_ASCII_CASEMAP: + case COMP_EN_ASCII_CASEMAP: { if (eq_asciicase(needle,haystack,0)) r=1; break; @@ -691,7 +696,7 @@ switch (mt) for (h=*haystack; h.length; ++h.character,--h.length) if (eq_octet(needle,&h,1)) { r=1; break; } break; } - case COMP_ASCII_CASEMAP: + case COMP_EN_ASCII_CASEMAP: { for (h=*haystack; h.length; ++h.character,--h.length) if (eq_asciicase(needle,&h,1)) { r=1; break; } break; @@ -713,7 +718,7 @@ switch (mt) if (eq_octetglob(needle,haystack)) r=1; break; } - case COMP_ASCII_CASEMAP: + case COMP_EN_ASCII_CASEMAP: { if (eq_asciicaseglob(needle,haystack)) r=1; break; @@ -1468,7 +1473,12 @@ switch (parse_string(filter,&comparator_name)) } else if (eq_asciicase(&comparator_name,&str_iascii_casemap,0)) { - *c=COMP_ASCII_CASEMAP; + *c=COMP_EN_ASCII_CASEMAP; + match=1; + } + else if (eq_asciicase(&comparator_name,&str_enascii_casemap,0)) + { + *c=COMP_EN_ASCII_CASEMAP; match=1; } else if (eq_asciicase(&comparator_name,&str_iascii_numeric,0)) @@ -1608,7 +1618,7 @@ if (parse_identifier(filter,CUS "address")) */ enum AddressPart addressPart=ADDRPART_ALL; - enum Comparator comparator=COMP_ASCII_CASEMAP; + enum Comparator comparator=COMP_EN_ASCII_CASEMAP; enum MatchType matchType=MATCH_IS; struct String *hdr,*h,*key,*k; int m; @@ -1711,10 +1721,8 @@ if (parse_identifier(filter,CUS "address")) case ADDRPART_LOCALPART: part=extracted_addr; part[domain-1]='\0'; break; case ADDRPART_DOMAIN: part=extracted_addr+domain; break; #ifdef SUBADDRESS - case ADDRPART_DETAIL: - part=NULL; + case ADDRPART_DETAIL: part=NULL; break; #endif - break; } *end_addr = saveend; @@ -1820,7 +1828,7 @@ else if (parse_identifier(filter,CUS "header")) */ - enum Comparator comparator=COMP_ASCII_CASEMAP; + enum Comparator comparator=COMP_EN_ASCII_CASEMAP; enum MatchType matchType=MATCH_IS; struct String *hdr,*h,*key,*k; int m; @@ -1943,7 +1951,7 @@ else if (parse_identifier(filter,CUS "envelope")) envelope-part is case insensitive "from" or "to" */ - enum Comparator comparator=COMP_ASCII_CASEMAP; + enum Comparator comparator=COMP_EN_ASCII_CASEMAP; enum AddressPart addressPart=ADDRPART_ALL; enum MatchType matchType=MATCH_IS; struct String *env,*e,*key,*k; @@ -2019,9 +2027,7 @@ else if (parse_identifier(filter,CUS "envelope")) case ADDRPART_LOCALPART: envelopeExpr=CUS "${local_part:$sender_address}"; break; case ADDRPART_DOMAIN: envelopeExpr=CUS "${domain:$sender_address}"; break; #ifdef SUBADDRESS - case ADDRPART_DETAIL: - envelopeExpr=CUS 0; - break; + case ADDRPART_DETAIL: envelopeExpr=CUS 0; break; #endif } } @@ -2031,8 +2037,8 @@ else if (parse_identifier(filter,CUS "envelope")) { case ADDRPART_ALL: envelopeExpr=CUS "$local_part_prefix$local_part$local_part_suffix@$domain"; break; #ifdef SUBADDRESS - case ADDRPART_USER: envelopeExpr=CUS "$local_part_prefix$local_part"; break; - case ADDRPART_DETAIL: envelopeExpr=CUS "$local_part_suffix"; break; + case ADDRPART_USER: envelopeExpr=filter->useraddress; break; + case ADDRPART_DETAIL: envelopeExpr=filter->subaddress; break; #endif case ADDRPART_LOCALPART: envelopeExpr=CUS "$local_part_prefix$local_part$local_part_suffix"; break; case ADDRPART_DOMAIN: envelopeExpr=CUS "$domain"; break; @@ -2056,7 +2062,7 @@ else if (parse_identifier(filter,CUS "envelope")) envelopeStr.character=envelope; envelopeStr.length=Ustrlen(envelope); - *cond=compare(filter,&envelopeStr,k,comparator,matchType); + *cond=compare(filter,k,&envelopeStr,comparator,matchType); if (*cond==-1) return -1; if (*cond) break; } @@ -2101,7 +2107,7 @@ if (*filter->pc=='{') } else { - filter->errmsg=CUS "expecting command or closing brace"; + filter->errmsg=CUS "expecting command or closing brace"; return -1; } } @@ -2306,7 +2312,7 @@ while (*filter->pc) fileinto-command = "fileinto" { fileinto-options } string ";" fileinto-options = fileinto-options =) [ ":copy" ] - */ + */ struct String folder; uschar *s; @@ -2366,17 +2372,21 @@ while (*filter->pc) /* vacation-command = "vacation" { vacation-options } ";" vacation-options = [":days" number] - [":addresses" string-list] [":subject" string] + [":from" string] + [":addresses" string-list] [":mime"] + [":handle" string] */ int m; unsigned long days; - struct String *addresses=(struct String*)0; struct String subject; + struct String from; + struct String *addresses; int reason_is_mime; string_item *aliases; + struct String handle; struct String reason; if (!filter->require_vacation) @@ -2396,8 +2406,13 @@ while (*filter->pc) days=VACATION_MIN_DAYS>7 ? VACATION_MIN_DAYS : 7; subject.character=(uschar*)0; subject.length=-1; + from.character=(uschar*)0; + from.length=-1; + addresses=(struct String*)0; aliases=NULL; reason_is_mime=0; + handle.character=(uschar*)0; + handle.length=-1; for (;;) { if (parse_white(filter)==-1) return -1; @@ -2408,6 +2423,43 @@ while (*filter->pc) if (daysVACATION_MAX_DAYS) days=VACATION_MAX_DAYS; } + else if (parse_identifier(filter,CUS ":subject")==1) + { + if (parse_white(filter)==-1) return -1; + if ((m=parse_string(filter,&subject))!=1) + { + if (m==0) filter->errmsg=CUS "subject string expected"; + return -1; + } + } + else if (parse_identifier(filter,CUS ":from")==1) + { + int start, end, domain; + uschar *error,*ss; + + if (parse_white(filter)==-1) return -1; + if ((m=parse_string(filter,&from))!=1) + { + if (m==0) filter->errmsg=CUS "from string expected"; + return -1; + } + if (from.length>0) + { + ss = parse_extract_address(from.character, &error, &start, &end, &domain, + FALSE); + if (ss == NULL) + { + filter->errmsg=string_sprintf("malformed address \"%s\" in " + "Sieve filter: %s", from.character, error); + return -1; + } + } + else + { + filter->errmsg=CUS "empty :from address in Sieve filter"; + return -1; + } + } else if (parse_identifier(filter,CUS ":addresses")==1) { struct String *a; @@ -2430,17 +2482,17 @@ while (*filter->pc) aliases=new; } } - else if (parse_identifier(filter,CUS ":subject")==1) + else if (parse_identifier(filter,CUS ":mime")==1) + reason_is_mime=1; + else if (parse_identifier(filter,CUS ":handle")==1) { if (parse_white(filter)==-1) return -1; - if ((m=parse_string(filter,&subject))!=1) + if ((m=parse_string(filter,&from))!=1) { - if (m==0) filter->errmsg=CUS "subject string expected"; + if (m==0) filter->errmsg=CUS "handle string expected"; return -1; } } - else if (parse_identifier(filter,CUS ":mime")==1) - reason_is_mime=1; else break; } if (parse_white(filter)==-1) return -1; @@ -2449,6 +2501,17 @@ while (*filter->pc) if (m==0) filter->errmsg=CUS "missing reason string"; return -1; } + if (reason_is_mime) + { + uschar *s,*end; + + for (s=reason.character,end=reason.character+reason.length; serrmsg=CUS "MIME reason string contains 8bit text"; + return -1; + } + } if (parse_semicolon(filter)==-1) return -1; if (exec) @@ -2466,103 +2529,123 @@ while (*filter->pc) if (filter_personal(aliases,TRUE)) { + if (filter_test == FTEST_NONE) + { + /* ensure oncelog directory exists; failure will be detected later */ - /* ensure oncelog directory exists; failure will be detected later */ - - (void)directory_make(NULL, filter->vacation_directory, 0700, FALSE); - + (void)directory_make(NULL, filter->vacation_directory, 0700, FALSE); + } /* build oncelog filename */ key.character=(uschar*)0; key.length=0; capacity=0; - if (subject.length!=-1) key.character=string_cat(key.character,&capacity,&key.length,subject.character,subject.length); - key.character=string_cat(key.character,&capacity,&key.length,reason_is_mime?US"1":US"0",1); - key.character=string_cat(key.character,&capacity,&key.length,reason.character,reason.length); + if (handle.length==-1) + { + if (subject.length!=-1) key.character=string_cat(key.character,&capacity,&key.length,subject.character,subject.length); + if (from.length!=-1) key.character=string_cat(key.character,&capacity,&key.length,from.character,from.length); + key.character=string_cat(key.character,&capacity,&key.length,reason_is_mime?US"1":US"0",1); + key.character=string_cat(key.character,&capacity,&key.length,reason.character,reason.length); + } + else + key=handle; md5_start(&base); md5_end(&base, key.character, key.length, digest); for (i = 0; i < 16; i++) sprintf(CS (hexdigest+2*i), "%02X", digest[i]); - capacity=Ustrlen(filter->vacation_directory); - start=capacity; - once=string_cat(filter->vacation_directory,&capacity,&start,US"/",1); - once=string_cat(once,&capacity,&start,hexdigest,33); - - /* process subject */ - - if (subject.length==-1) + if (filter_test != FTEST_NONE) { - expand_header(&subject,&str_subject); - while (subject.length>=4 && Ustrncmp(subject.character,"Re: ",4)==0) - { - subject.character+=4; - subject.length-=4; - } - capacity=6; - start=6; - subject.character=string_cat(US"Auto: ",&capacity,&start,subject.character,subject.length); - subject.length=start; + debug_printf("Sieve: mail was personal, vacation file basename: %s\n", hexdigest); } - - /* add address to list of generated addresses */ - - addr = deliver_make_addr(string_sprintf(">%.256s", sender_address), FALSE); - setflag(addr, af_pfr); - setflag(addr, af_ignore_error); - addr->next = *generated; - *generated = addr; - addr->reply = store_get(sizeof(reply_item)); - memset(addr->reply,0,sizeof(reply_item)); /* XXX */ - addr->reply->to = string_copy(sender_address); - addr->reply->from = expand_string(US"$local_part@$domain"); - /* Allocation is larger than neccessary, but enough even for split MIME words */ - buffer_capacity=16+4*subject.length; - buffer=store_get(buffer_capacity); - addr->reply->subject=parse_quote_2047(subject.character, subject.length, US"utf-8", buffer, buffer_capacity); - addr->reply->oncelog=once; - addr->reply->once_repeat=days*86400; - - /* build body and MIME headers */ - - if (reason_is_mime) + else { - uschar *mime_body,*reason_end; + capacity=Ustrlen(filter->vacation_directory); + start=capacity; + once=string_cat(filter->vacation_directory,&capacity,&start,US"/",1); + once=string_cat(once,&capacity,&start,hexdigest,33); + once[start] = '\0'; + + /* process subject */ + + if (subject.length==-1) + { + expand_header(&subject,&str_subject); + capacity=6; + start=6; + subject.character=string_cat(US"Auto: ",&capacity,&start,subject.character,subject.length); + subject.length=start; + } + + /* add address to list of generated addresses */ + + addr = deliver_make_addr(string_sprintf(">%.256s", sender_address), FALSE); + setflag(addr, af_pfr); + setflag(addr, af_ignore_error); + addr->next = *generated; + *generated = addr; + addr->reply = store_get(sizeof(reply_item)); + memset(addr->reply,0,sizeof(reply_item)); /* XXX */ + addr->reply->to = string_copy(sender_address); + if (from.length==-1) + addr->reply->from = expand_string(US"$local_part@$domain"); + else + addr->reply->from = from.character; + /* Allocation is larger than neccessary, but enough even for split MIME words */ + buffer_capacity=16+4*subject.length; + buffer=store_get(buffer_capacity); + addr->reply->subject=parse_quote_2047(subject.character, subject.length, US"utf-8", buffer, buffer_capacity); + addr->reply->oncelog=once; + addr->reply->once_repeat=days*86400; + + /* build body and MIME headers */ + + if (reason_is_mime) + { + uschar *mime_body,*reason_end; #ifdef RFC_EOL - static const uschar nlnl[]="\r\n\r\n"; + static const uschar nlnl[]="\r\n\r\n"; #else - static const uschar nlnl[]="\n\n"; + static const uschar nlnl[]="\n\n"; #endif - for - ( - mime_body=reason.character,reason_end=reason.character+reason.length; - mime_body<(reason_end-sizeof(nlnl)-1) && memcmp(mime_body,nlnl,sizeof(nlnl)-1); - ++mime_body - ); - capacity = 0; - start = 0; - addr->reply->headers = string_cat(NULL,&capacity,&start,reason.character,mime_body-reason.character); - capacity = 0; - start = 0; - if (mime_bodyreply->text = string_cat(NULL,&capacity,&start,mime_body,reason_end-mime_body); + for + ( + mime_body=reason.character,reason_end=reason.character+reason.length; + mime_body<(reason_end-sizeof(nlnl)-1) && memcmp(mime_body,nlnl,sizeof(nlnl)-1); + ++mime_body + ); + capacity = 0; + start = 0; + addr->reply->headers = string_cat(NULL,&capacity,&start,reason.character,mime_body-reason.character); + addr->reply->headers[start] = '\0'; + capacity = 0; + start = 0; + if (mime_body+(sizeof(nlnl)-1)reply->text = string_cat(NULL,&capacity,&start,mime_body,reason_end-mime_body); + addr->reply->text[start] = '\0'; + } + else + { + struct String qp; + + capacity = 0; + start = reason.length; + addr->reply->headers = US"MIME-Version: 1.0\n" + "Content-Type: text/plain;\n" + "\tcharset=\"utf-8\"\n" + "Content-Transfer-Encoding: quoted-printable"; + addr->reply->text = quoted_printable_encode(&reason,&qp)->character; + } } - else + } + else if (filter_test != FTEST_NONE) { - struct String qp; - - capacity = 0; - start = reason.length; - addr->reply->headers = US"MIME-Version: 1.0\n" - "Content-Type: text/plain;\n" - "\tcharset=\"utf-8\"\n" - "Content-Transfer-Encoding: quoted-printable"; - addr->reply->text = quoted_printable_encode(&reason,&qp)->character; + debug_printf("Sieve: mail was not personal, vacation would ignore it\n"); } - } } } + else break; #endif - else break; } return 1; } @@ -2602,7 +2685,7 @@ filter->require_iascii_numeric=0; if (parse_white(filter)==-1) return -1; -if (exec && filter->vacation_directory != NULL) /* 2nd test added by PH */ +if (exec && filter->vacation_directory != NULL && filter_test == FTEST_NONE) { DIR *oncelogdir; struct dirent *oncelog; @@ -2653,15 +2736,15 @@ while (parse_identifier(filter,CUS "require")) } for (check=cap; check->character; ++check) { - if (eq_asciicase(check,&str_envelope,0)) filter->require_envelope=1; - else if (eq_asciicase(check,&str_fileinto,0)) filter->require_fileinto=1; + if (eq_octet(check,&str_envelope,0)) filter->require_envelope=1; + else if (eq_octet(check,&str_fileinto,0)) filter->require_fileinto=1; #ifdef SUBADDRESS - else if (eq_asciicase(check,&str_subaddress,0)) filter->require_subaddress=1; + else if (eq_octet(check,&str_subaddress,0)) filter->require_subaddress=1; #endif #ifdef VACATION - else if (eq_asciicase(check,&str_vacation,0)) + else if (eq_octet(check,&str_vacation,0)) { - if (filter->vacation_directory == NULL) + if (filter_test == FTEST_NONE && filter->vacation_directory == NULL) { filter->errmsg=CUS "vacation disabled"; return -1; @@ -2669,10 +2752,11 @@ while (parse_identifier(filter,CUS "require")) filter->require_vacation=1; } #endif - else if (eq_asciicase(check,&str_copy,0)) filter->require_copy=1; - else if (eq_asciicase(check,&str_comparator_ioctet,0)) ; - else if (eq_asciicase(check,&str_comparator_iascii_casemap,0)) ; - else if (eq_asciicase(check,&str_comparator_iascii_numeric,0)) filter->require_iascii_numeric=1; + else if (eq_octet(check,&str_copy,0)) filter->require_copy=1; + else if (eq_octet(check,&str_comparator_ioctet,0)) ; + else if (eq_octet(check,&str_comparator_iascii_casemap,0)) ; + else if (eq_octet(check,&str_comparator_enascii_casemap,0)) ; + else if (eq_octet(check,&str_comparator_iascii_numeric,0)) filter->require_iascii_numeric=1; else { filter->errmsg=CUS "unknown capability"; @@ -2701,6 +2785,8 @@ Arguments: options controls whether various special things are allowed, and requests special actions (not currently used) sieve_vacation_directory where to store vacation "once" files + useraddress string expression for :user part of address + subaddress string expression for :subaddress part of address generated where to hang newly-generated addresses error where to pass back an error text @@ -2714,7 +2800,7 @@ Returns: FF_DELIVERED success, a significant action was taken int sieve_interpret(uschar *filter, int options, uschar *vacation_directory, - address_item **generated, uschar **error) + uschar *useraddress, uschar *subaddress, address_item **generated, uschar **error) { struct Sieve sieve; int r; @@ -2740,6 +2826,9 @@ else } } +sieve.useraddress = useraddress == NULL ? CUS "$local_part_prefix$local_part$local_part_suffix" : useraddress; +sieve.subaddress = subaddress; + #ifdef COMPILE_SYNTAX_CHECKER if (parse_start(&sieve,0,generated)==1) #else