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1.1 paf 1:
2: /** @file
3: Parser: @b mail class.
4: relies on gmime library, by Jeffrey Stedfast <fejj@helixcode.com>
5:
6: Copyright(c) 2001, 2002 ArtLebedev Group(http://www.artlebedev.com)
7: Author: Alexandr Petrosian <paf@design.ru>(http://paf.design.ru)
8:
1.6 ! paf 9: $Id: pa_vmail.C,v 1.5 2002/06/24 19:11:43 paf Exp $
1.1 paf 10: */
11:
12: #include "pa_sapi.h"
13: #include "pa_vmail.h"
14: #include "pa_vstring.h"
15: #include "pa_request.h"
16: #include "pa_common.h"
17: #include "pa_charset.h"
18: #include "pa_charsets.h"
19: #include "pa_vdate.h"
20: #include "pa_vfile.h"
21: #include "pa_uue.h"
22:
1.3 paf 23: #ifdef WITH_MAILRECEIVE
1.4 paf 24: extern "C" {
1.1 paf 25: #include "gmime.h"
1.4 paf 26: }
1.1 paf 27: #endif
28:
29: // defines
30:
31: #define RAW_NAME "raw"
32:
33: // internals
34:
35: enum PartType {
36: P_TEXT,
37: P_HTML,
38: P_FILE,
39: P_MESSAGE,
40:
41: P_TYPES_COUNT
42: };
43:
44: static const char * const part_name_starts[P_TYPES_COUNT]={"text", "html", "file", "message"};
45:
46: // VMail
47:
48: extern Methoded *mail_base_class;
49:
50: VMail::VMail(Pool& apool) : VStateless_class(apool, 0, mail_base_class),
51: vreceived(apool) {
52: }
53:
1.3 paf 54: #ifdef WITH_MAILRECEIVE
1.1 paf 55:
56: static const String& maybeUpperCase(Pool& pool, const String& src, bool toUpperCase) {
57: return toUpperCase?src.change_case(pool, String::CC_UPPER):src;
58: }
59:
60: static void UTF8toSource(Pool& pool, const char *source_body, size_t source_content_length,
61: const void *& dest_body, size_t& dest_content_length) {
62: if(source_body) {
63: if(!source_content_length)
64: source_content_length=strlen(source_body);
65: Charset::transcode(pool,
66: *utf8_charset, source_body, source_content_length,
67: pool.get_source_charset(), dest_body, dest_content_length);
68: } else {
69: dest_body=0;
70: dest_content_length=0;
71: }
72: }
73:
74: static void putReceived(Hash& received, const char *name, Value *value, bool nameToUpperCase=false) {
75: Pool& pool=received.pool();
76: if(name && value) {
77: received.put(
78: maybeUpperCase(pool, String::OnPool(pool, name, 0, true/*tainted*/), nameToUpperCase),
79: value);
80: }
81: }
82:
83: static void putReceived(Hash& received, const char *name, const char *value, size_t value_size=0, bool nameToUpperCase=false) {
84: if(value) {
85: Pool& pool=received.pool();
86:
87: const void *value_dest_body;
88: size_t value_dest_content_length;
89: UTF8toSource(pool, value, value_size, value_dest_body, value_dest_content_length);
90:
91: putReceived(received, name,
92: new(pool) VString(
93: String::OnPool(pool,(const char *)value_dest_body, value_dest_content_length, true/*tainted*/)));
94: }
95: }
96:
97: static void putReceived(Hash& received, const char *name, time_t value) {
98: Pool& pool=received.pool();
99: if(name)
100: received.put(String::OnPool(pool, name, 0, true/*tainted*/), new(pool) VDate(pool, value));
101: }
102:
103: static void MimeHeaderField2received(const char *name, const char *value, gpointer data) {
104: Hash& received=*static_cast<Hash *>(data);
105:
106: putReceived(received, name, value, 0, true/*nameInUpperCase*/);
107: }
108:
109: static void parse(GMimeStream *stream, Hash& received);
110:
111: #ifndef DOXYGEN
112: struct MimePart2bodyInfo {
113: Hash *body;
114: int partCounts[P_TYPES_COUNT];
115: };
116: #endif
117: static void MimePart2body(GMimePart *part,
118: gpointer data) {
119: MimePart2bodyInfo& i=*static_cast<MimePart2bodyInfo *>(data);
120: Pool& pool=i.body->pool();
121:
122: if(const GMimeContentType *type=g_mime_part_get_content_type(part)) {
123: if(g_mime_content_type_is_type(type, "multipart", "*"))
124: return; // skipping frames
125:
126: PartType partType;
127: if(g_mime_content_type_is_type(type, "text", "plain"))
128: partType=P_TEXT;
129: else if(g_mime_content_type_is_type(type, "text", "html"))
130: partType=P_HTML;
131: else if(g_mime_content_type_is_type(type, "message", "*"))
132: partType=P_MESSAGE;
133: else
134: partType=P_FILE;
135:
136: // partName
137: const char *partName;
138: char partNameBuf[MAX_STRING];
139: const char *partNameStart=part_name_starts[partType];
140: if(int partNo=i.partCounts[partType]++) {
141: snprintf(partNameBuf, MAX_STRING, "%s%d", partNameStart, partNo);
142: partName=partNameBuf;
143: } else
144: partName=partNameStart;
145:
146: // $.partX[
147: VHash& vpartX=*new(pool) VHash(pool); putReceived(*i.body, partName, &vpartX);
148: Hash& partX=vpartX.hash(0);
149: {
150: // $.raw[
151: VHash& vraw=*new(pool) VHash(pool); putReceived(partX, RAW_NAME, &vraw);
152: g_mime_header_foreach(part->headers, MimeHeaderField2received, &vraw.hash(0));
153: }
154: const char *content_filename=0;
155: {
156: // $.content-type[
157: VHash& vcontent_type=*new(pool) VHash(pool); putReceived(partX, "content-type", &vcontent_type);
158: Hash& content_type=vcontent_type.hash(0);
159: {
160: // $.value[text/plain]
161: char value[MAX_STRING];
162: snprintf(value, MAX_STRING, "%s/%s",
163: type->type?type->type:"x-unknown",
164: type->subtype?type->subtype:"x-unknown");
165: putReceived(content_type, VALUE_NAME, value);
166: }
167: GMimeParam *param=type->params;
168: while(param) {
169: // $.charset[windows-1251] && co
170: putReceived(content_type, param->name, param->value, true);
171: if(strcasecmp(param->name, "name")==0)
172: content_filename=param->value;
173: param=param->next;
174: }
175: }
176: // $.description
177: putReceived(partX, "description", part->description);
178: // $.content-id
179: putReceived(partX, "content-id", part->content_id);
180: // $.content-md5
181: putReceived(partX, "content-md5", part->content_md5);
182: // $.content-location
183: putReceived(partX, "content-location", part->content_location);
184:
185: // todo GMimePart:
186: // GMimePartEncodingType encoding;
187: // GMimeDisposition *disposition;
188: if(part->disposition) {
189: GMimeParam *param=part->disposition->params;
190: while(param) {
191: // $.charset[windows-1251] && co
192: if(strcasecmp(param->name, "filename")==0)
193: content_filename=param->value;
194: param=param->next;
195: }
196: }
197:
198: // MESSAGE
199: if(partType==P_MESSAGE) {
200: if(part->content)
201: if(GMimeStream *stream=part->content->stream)
202: parse(stream, partX);
203: } else {
204: // $.value[string|file]
205: size_t buf_len;
206: const void *buf=g_mime_part_get_content(part, &buf_len);
207: if(partType==P_FILE) {
208: VFile& vfile=*new(pool) VFile(pool);
209: vfile.set(true/*tainted*/, buf, buf_len, content_filename);
210: putReceived(partX, VALUE_NAME, &vfile);
211: } else {
212: // P_TEXT, P_HTML
213: putReceived(partX, VALUE_NAME,(const char*)buf, buf_len);
214: }
215: }
216: }
217: }
218:
219: static void parse(GMimeStream *stream, Hash& received) {
220: Pool& pool=received.pool();
221:
222: GMimeMessage *message=g_mime_parser_construct_message(stream);
223: try {
224: const GMimeMessageHeader *messageHeader=message->header;
225: if(!messageHeader)
226: return;
227:
228: // firstly user-defined strings go
229: // user headers
230: {
231: // $.raw[
1.5 paf 232: VHash& vraw=*new(pool) VHash(pool); putReceived(received, RAW_NAME, &vraw);
1.1 paf 233: g_mime_header_foreach(messageHeader->headers, MimeHeaderField2received, &vraw.hash(0));
234: }
235:
236: // maybe-todo-recipients
237: // x(messageHeader->recipients)
238:
239: // secondly standard headers&body go
240: // standard header
241: // .from
242: putReceived(received, "from", messageHeader->from);
243: // .reply-to
244: putReceived(received, "reply-to", messageHeader->reply_to);
245: // .to
246: // todo: messageHeader->recipients
247: // .subject
248: putReceived(received, "subject", messageHeader->subject);
249: // .date(date+gmt_offset)
250: int tt_offset =
251: ((messageHeader->gmt_offset / 100) *(60 * 60))
252: +(messageHeader->gmt_offset % 100) * 60;
253: putReceived(received, "date",
254: messageHeader->date // local sender
255: -tt_offset // move local sender to GMT sender
256: -(timezone+(daylight?60*60*sign(timezone):0)) // move GMT sender to our local time
257: );
258: // .message-id
259: putReceived(received, "message-id", messageHeader->message_id);
260:
261: // .body[part/parts
262: GMimePart *part=message->mime_part;
263: const GMimeContentType *type=g_mime_part_get_content_type(part);
264: MimePart2bodyInfo info={&received};
265: g_mime_part_foreach(part, MimePart2body, &info);
266:
267: // normal unref
268: g_mime_object_unref(GMIME_OBJECT(message));
269: } catch(...) {
270: // abnormal unref
271: g_mime_object_unref(GMIME_OBJECT(message));
272: }
273: }
274: #endif
275:
276:
277:
278: void VMail::fill_received(Request& request) {
279: // store letter to received
1.3 paf 280: #ifdef WITH_MAILRECEIVE
1.1 paf 281: if(request.info.mail_received) {
282: // init
283: g_mime_init(GMIME_INIT_FLAG_UTF8);
284:
285: // create stream with CRLF filter
286: GMimeStream *stream = g_mime_stream_fs_new(fileno(stdin));
287: GMimeStream *istream = g_mime_stream_filter_new_with_stream(stream);
288: GMimeFilter *filter = g_mime_filter_crlf_new(GMIME_FILTER_CRLF_DECODE, GMIME_FILTER_CRLF_MODE_CRLF_ONLY);
289: g_mime_stream_filter_add(GMIME_STREAM_FILTER(istream), filter);
290: g_mime_stream_unref(stream);
291: stream = istream;
292: try {
293: // parse incoming stream
294: parse(stream, vreceived.hash(0));
295: // normal stream free
296: g_mime_stream_unref(stream);
297: } catch(...) {
298: // abnormal stream free
299: g_mime_stream_unref(stream);
300: }
301: }
302: #endif
303: }
304:
305: #ifndef DOXYGEN
306: struct Store_message_element_info {
307: Charset *charset;
308: String *header;
309: const String **from, **to;
310: Array *parts[P_TYPES_COUNT];
311: int parts_count;
312: bool has_content_type;
313: };
314: #endif
1.5 paf 315: static void store_message_element(const Hash::Key& raw_element_name, Hash::Val *aelement_value,
1.1 paf 316: void *info) {
317: Value& element_value=*static_cast<Value *>(aelement_value);
1.5 paf 318: const String& low_element_name=raw_element_name.change_case(raw_element_name.pool(), String::CC_LOWER);
1.1 paf 319: Store_message_element_info& i=*static_cast<Store_message_element_info *>(info);
320:
321: // exclude internals
1.5 paf 322: if(low_element_name==CHARSET_NAME
323: || low_element_name==VALUE_NAME
324: || low_element_name==RAW_NAME
325: || low_element_name=="date")
1.1 paf 326: return;
327:
328: // grep parts
329: for(int pt=0; pt<P_TYPES_COUNT; pt++) {
1.5 paf 330: if(low_element_name.starts_with(part_name_starts[pt])) {
1.1 paf 331: *i.parts[pt]+=&element_value;
332: i.parts_count++;
333: return;
334: }
335: }
336:
337: // fetch from & to from header for SMTP
1.5 paf 338: if(i.from && low_element_name=="from")
1.1 paf 339: *i.from=&element_value.as_string();
1.5 paf 340: if(i.to && low_element_name=="to")
1.1 paf 341: *i.to=&element_value.as_string();
342:
343: // append header line
344: *i.header <<
1.5 paf 345: raw_element_name << ":" <<
1.1 paf 346: attributed_meaning_to_string(element_value, String::UL_MAIL_HEADER).
347: cstr(String::UL_UNSPECIFIED, 0, i.charset, i.charset?i.charset->name().cstr():0) <<
348: "\n";
349:
350: // has content type?
1.5 paf 351: if(low_element_name==CONTENT_TYPE_NAME)
1.1 paf 352: i.has_content_type=true;
353: }
354:
355: static const String& file_value_to_string(Request& r, const String *source,
356: Value& send_value) {
357: Pool& pool=r.pool();
358: const VFile *vfile;
359: const String *file_name;
360: Value *vformat;
361: if(Hash *send_hash=send_value.get_hash(source)) { // hash
362: // $.value
363: if(Value *value=static_cast<Value *>(send_hash->get(*value_name)))
364: vfile=value->as_vfile(String::UL_AS_IS);
365: else
366: throw Exception("parser.runtime",
367: source,
368: "file part has no $value");
369:
370: // $.format
371: vformat=static_cast<Value *>(send_hash->get(*new(pool) String(pool, "format")));
372:
1.6 ! paf 373: // $.name
1.1 paf 374: if(Value *vfile_name=static_cast<Value *>(send_hash->get(
1.6 ! paf 375: *new(pool) String(pool, "name")))) // specified $name
1.1 paf 376: file_name=&vfile_name->as_string();
377: } else { // must be VFile
378: vfile=send_value.as_vfile(String::UL_AS_IS);
379: file_name=&static_cast<Value *>(vfile->fields().get(*name_name))->as_string();
380: vformat=0;
381: }
382: const char *file_name_cstr=file_name->cstr();
383:
384: String& result=*new(pool) String(pool);
385:
386: // content-type: application/octet-stream
387: result << "content-type: " << r.mime_type_of(file_name_cstr)
388: << "; name=\"" << file_name_cstr << "\"\n";
389: // content-disposition: attachment; filename="user_file_name"
390: result << "content-disposition: attachment; filename=\"" << file_name_cstr << "\"\n";
391:
392: const String *type=vformat?&vformat->as_string():0;
393: if(!type/*default = uue*/ || *type=="uue") {
394: pa_uuencode(result, file_name_cstr, *vfile);
395: } else // for now
396: throw Exception("parser.runtime",
397: type,
398: "unknown attachment encode format");
399:
400: return result;
401: }
402:
403: static const String& text_value_to_string(Request& r, const String *source,
404: PartType pt, Value& send_value,
405: Store_message_element_info& info) {
406: Pool& pool=r.pool();
407: String& result=*new(pool) String(pool);
408:
409: Value *text_value;
410: bool has_content_type;
411: if(Hash *send_hash=send_value.get_hash(source)) {
412: // $.USER-HEADERS
413: info.has_content_type=false; // reset
414: send_hash->for_each(store_message_element, &info);
415: // $.value
416: text_value=static_cast<Value *>(send_hash->get(*value_name));
417: if(!text_value)
418: throw Exception("parser.runtime",
419: source,
420: "%s part has no $" VALUE_NAME, part_name_starts[pt]);
421: } else
422: text_value=&send_value;
423:
424: if(!info.has_content_type) {
425: result << "content-type: text/" << (pt==P_TEXT?"plain":"html");
426: if(info.charset)
427: result << "; charset=" << info.charset->name();
428: result << "\n";
429: }
430:
431: // header|body separator
432: result << "\n";
433:
434: // body
435: switch(pt) {
436: case P_TEXT:
437: result.append(text_value->as_string(), String::UL_AS_IS, true /* forced */);
438: break;
439: case P_HTML:
440: {
441: Temp_lang temp_lang(r, String::UL_HTML);
442: if(Junction *junction=text_value->get_junction()) {
443: // execution of found $.html{code} must be in context of ^send[...]
444: // setting code context, would execute in ^.send[>>context<<]
445: //junction->change_context(?.get_junction());
446: junction->root=r.root;
447: junction->rcontext=r.rcontext;
448: junction->wcontext=r.wcontext;
449:
450: result << r.process_to_string(*text_value);
451: } else
452: throw Exception("parser.runtime",
453: source,
454: "html part value must be code");
455:
456: break;
457: }
458: }
459:
460: return result;
461: };
462:
463: /// @todo files and messages in order (file, file2, ...)
464: const String& VMail::message_hash_to_string(Request& r, const String *source,
465: Hash *message_hash, int level,
466: const String **from, const String **to) {
467: if(!message_hash)
468: throw Exception("parser.runtime",
469: source,
470: "message must be hash");
471:
472: String& result=*NEW String(pool());
473:
474: Charset *charset;
475: if(Value *vrecodecharset_name=static_cast<Value *>(message_hash->get(*charset_name)))
476: charset=&charsets->get_charset(vrecodecharset_name->as_string());
477: else
478: charset=&pool().get_source_charset();
479:
480: Store_message_element_info info={
481: charset,
482: &result,
483: from, to
484: };
485: {
486: if(from)
487: *from=0;
488: if(to)
489: *to=0;
490: for(int pt=0; pt<P_TYPES_COUNT; pt++)
491: info.parts[pt]=NEW Array(pool());
492: message_hash->for_each(store_message_element, &info);
493: }
494:
495: int textCount=info.parts[P_TEXT]->size();
496: if(textCount>1)
497: throw Exception("parser.runtime",
498: source,
499: "multiple text parts not supported, use file part");
500: int htmlCount=info.parts[P_HTML]->size();
501: if(htmlCount>1)
502: throw Exception("parser.runtime",
503: source,
504: "multiple html parts not supported, use file part");
505:
506:
507: bool multipart=info.parts_count>1;
508: bool alternative=textCount && htmlCount;
509: // header
510: char *boundary=0;
511: if(multipart) {
512: boundary=(char *)malloc(MAX_NUMBER);
513: snprintf(boundary, MAX_NUMBER-5/*lEvEl*/, "lEvEl%d", level);
514: // multi-part
515: result << "content-type: multipart/mixed; boundary=\"" << boundary << "\"\n";
516: result << "\n"
517: "This is a multi-part message in MIME format.";
518: }
519:
520: // alternative or not
521: {
522: if(alternative) {
523: result << "\n\n--" << boundary << "\n"; // intermediate boundary
524: result << "content-type: multipart/alternative; boundary=\"ALT" << boundary << "\"\n";
525: }
526: for(int i=0; i<2; i++) {
527: PartType pt=i==0?P_TEXT:P_HTML;
528: if(info.parts[pt]->size()) {
529: if(alternative)
530: result << "\n\n--ALT" << boundary << "\n"; // intermediate boundary
531: else if(boundary)
532: result << "\n\n--" << boundary << "\n"; // intermediate boundary
533: result << text_value_to_string(r, source, pt,
534: *static_cast<Value *>(info.parts[pt]->get(0)), info);
535: }
536: }
537: if(alternative)
538: result << "\n\n--ALT" << boundary << "--\n";
539: }
540:
541: // files
542: {
543: Array& files=*info.parts[P_FILE];
544: for(int i=0; i<files.size(); i++) {
545: if(boundary)
546: result << "\n\n--" << boundary << "\n"; // intermediate boundary
547: result << file_value_to_string(r, source, *static_cast<Value *>(files.get(i)));
548: }
549: }
550:
551: // messages
552: {
553: Array& messages=*info.parts[P_MESSAGE];
554: for(int i=0; i<messages.size(); i++) {
555: if(boundary)
556: result << "\n\n--" << boundary << "\n"; // intermediate boundary
557:
558: result << message_hash_to_string(r, source,
559: static_cast<Value *>(messages.get(i))->get_hash(source),
560: level+1);
561: }
562: }
563:
564: // tailer
565: if(boundary)
566: result << "\n\n--" << boundary << "--\n"; // finish boundary
567:
568: // return
569: return result;
570: }
571:
572:
573: Value *VMail::get_element(const String& aname) {
574: // $fields
1.3 paf 575: #ifdef WITH_MAILRECEIVE
1.1 paf 576: if(aname==MAIL_RECEIVED_ELEMENT_NAME)
577: return &vreceived;
578: #endif
579:
580: // $CLASS,$method
581: if(Value *result=VStateless_class::get_element(aname))
582: return result;
583:
584: return 0;
585: }
586:
1.3 paf 587: #if defined(WITH_MAILRECEIVE) && defined(_MSC_VER)
1.1 paf 588: # define GNOME_LIBS "/parser3project/win32mailreceive/win32/gnome"
589: # pragma comment(lib, GNOME_LIBS "/glib/lib/libglib-1.3-11.lib")
590: # ifdef _DEBUG
591: # pragma comment(lib, GNOME_LIBS "/gmime-x.x.x/Debug/libgmime.lib")
592: # else
593: # pragma comment(lib, GNOME_LIBS "/gmime-x.x.x/Release/libgmime.lib")
594: # endif
595: #endif