2 * Header file for libcitadel
6 /* protect against double includes */
12 * since we reference time_t...
17 #include <arpa/inet.h>
19 #define LIBCITADEL_VERSION_NUMBER 800
22 * Here's a bunch of stupid magic to make the MIME parser portable.
29 /* Logging levels - correspond to syslog(3) */
31 /* When about to exit the server for an unrecoverable error */
32 CTDL_EMERG, /* system is unusable */
33 /* Manual intervention is required to avoid an abnormal exit */
34 CTDL_ALERT, /* action must be taken immediately */
35 /* The server can continue to run with degraded functionality */
36 CTDL_CRIT, /* critical conditions */
37 /* An error occurs but the server continues to run normally */
38 CTDL_ERR, /* error conditions */
39 /* An abnormal condition was detected; server will continue normally */
40 CTDL_WARNING, /* warning conditions */
41 /* Normal messages (login/out, activity, etc.) */
42 CTDL_NOTICE, /* normal but significant condition */
43 /* Unimportant progress messages, etc. */
44 CTDL_INFO, /* informational */
45 /* Debugging messages */
46 CTDL_DEBUG /* debug-level messages */
49 typedef enum AXLevel {
62 lastsent, /* Server internal use only */
72 enum GNET_POP3_PARTS { /* pop3client splits into these columns: */
76 GNET_POP3_DONT_DELETE_REMOTE = 4,
77 GNET_POP3_INTERVAL = 5
80 enum GNET_PUSH_SHARE { /* ignet_push_share splits into these columns: */
85 typedef enum __GPEXWhichPolicy {
95 * Note that not all views are implemented in all clients.
97 typedef enum _room_views {
98 VIEW_BBS = 0, /* Bulletin board view */
99 VIEW_MAILBOX = 1, /* Mailbox summary */
100 VIEW_ADDRESSBOOK = 2, /* Address book view */
101 VIEW_CALENDAR = 3, /* Calendar view */
102 VIEW_TASKS = 4, /* Tasks view */
103 VIEW_NOTES = 5, /* Notes view */
104 VIEW_WIKI = 6, /* Wiki view */
105 VIEW_CALBRIEF = 7, /* Brief Calendar view */
106 VIEW_JOURNAL = 8, /* Journal view */
107 VIEW_DRAFTS = 9, /* Drafts view */
108 VIEW_BLOG = 10, /* Blog view */
112 #define BLOG_EUIDBUF_SIZE 40
115 #define IsEmptyStr(a) ((a)[0] == '\0')
120 * another word to indicate n/a for a pointer if NULL already has a "meaning"
122 extern const char *StrBufNOTNULL;
128 char *libcitadel_version_string(void);
129 int libcitadel_version_number(void);
130 void StartLibCitadel(size_t basesize);
131 void ShutDownLibCitadel(void);
134 * MIME parser declarations
137 long extract_key(char *target, char *source, long sourcelen, char *key, long keylen, char KeyEnd);
140 typedef void (*MimeParserCallBackType)(char *cbname,
152 void mime_parser(char *content_start, char *content_end,
153 MimeParserCallBackType CallBack,
154 MimeParserCallBackType PreMultiPartCallBack,
155 MimeParserCallBackType PostMultiPartCallBack,
161 char *fixed_partnum(char *);
162 void mime_decode(char *partnum,
163 char *part_start, size_t length,
164 char *content_type, char *charset, char *encoding,
167 char *name, char *filename,
168 MimeParserCallBackType CallBack,
169 MimeParserCallBackType PreMultiPartCallBack,
170 MimeParserCallBackType PostMultiPartCallBack,
173 int mime_decode_now (char *part_start,
177 size_t *bytes_decoded);
178 void the_mime_parser(char *partnum,
179 char *content_start, char *content_end,
180 MimeParserCallBackType CallBack,
181 MimeParserCallBackType PreMultiPartCallBack,
182 MimeParserCallBackType PostMultiPartCallBack,
186 typedef struct StrBuf StrBuf;
189 #define CStrOf(a) #a, sizeof(#a) - 1
190 typedef struct _ConstStr {
194 #define CKEY(a) (a).Key, (a).len
196 StrBuf* NewStrBuf(void);
197 StrBuf* NewStrBufDup(const StrBuf *CopyMe);
198 StrBuf* NewStrBufPlain(const char* ptr, int nChars);
199 long StrBufShrinkToFit(StrBuf *Buf, int Force);
200 void ReAdjustEmptyBuf(StrBuf *Buf, long ThreshHold, long NewSize);
201 void NewStrBufDupAppendFlush(StrBuf **CreateRelpaceMe, StrBuf *CopyFlushMe, const char *NoMe, int KeepOriginal);
203 int StrBufPlain(StrBuf *Buf, const char* ptr, int nChars);
204 StrBuf* _NewConstStrBuf(const char* StringConstant, size_t SizeOfStrConstant);
205 #define NewConstStrBuf(a) _NewConstStrBuf(a, sizeof(a))
206 void FreeStrBuf (StrBuf **FreeMe);
207 char *SmashStrBuf (StrBuf **SmashMe);
208 void HFreeStrBuf (void *VFreeMe);
209 int FlushStrBuf(StrBuf *buf);
210 int FLUSHStrBuf(StrBuf *buf); /* expensive but doesn't leave content behind for others to find in case of errors */
212 const char *ChrPtr(const StrBuf *Str);
213 int StrLength(const StrBuf *Str);
214 #define SKEY(a) ChrPtr(a), StrLength(a)
215 long StrBufPeek(StrBuf *Buf, const char* ptr, long nThChar, char PeekValue);
216 long StrBufPook(StrBuf *Buf, const char* ptr, long nThChar, long nChars, char PookValue);
218 int StrBufTCP_read_line(StrBuf *buf, int *fd, int append, const char **Error);
219 int StrBufReadBLOB(StrBuf *Buf, int *fd, int append, long nBytes, const char **Error);
222 int StrBufReadBLOBBuffered(StrBuf *Buf,
230 int StrBufTCP_read_buffered_line(StrBuf *Line,
234 int selectresolution,
236 int StrBufTCP_read_buffered_line_fast(StrBuf *Line,
241 int selectresolution,
246 typedef enum _eReadState {
253 typedef struct _file_buffer {
255 const char *ReadWritePointer;
258 int nBlobBytesWanted;
261 long StrBuf_read_one_chunk_callback (int fd, short event, IOBuffer *FB);
262 int StrBuf_write_one_chunk_callback(int fd, short event, IOBuffer *FB);
264 eReadState StrBufChunkSipLine(StrBuf *LineBuf, IOBuffer *FB);
265 eReadState StrBufCheckBuffer(IOBuffer *FB);
267 int StrBufSipLine(StrBuf *LineBuf, const StrBuf *Buf, const char **Ptr);
268 int StrBufReplaceToken(StrBuf *Buf, long where, long HowLong, const char *Repl, long ReplLen);
269 int StrBufExtract_token(StrBuf *dest, const StrBuf *Source, int parmnum, char separator);
270 int StrBufSub(StrBuf *dest, const StrBuf *Source, unsigned long Offset, size_t nChars);
272 unsigned long StrBufExtract_unsigned_long(const StrBuf* Source, int parmnum, char separator);
273 long StrBufExtract_long(const StrBuf* Source, int parmnum, char separator);
274 int StrBufExtract_int(const StrBuf* Source, int parmnum, char separator);
275 int StrBufNum_tokens(const StrBuf *source, char tok);
276 int StrBufRemove_token(StrBuf *Source, int parmnum, char separator);
278 int StrBufHaveNextToken(const StrBuf *Source, const char **pStart);
279 int StrBufExtract_NextToken(StrBuf *dest, const StrBuf *Source, const char **pStart, char separator);
280 int StrBufSkip_NTokenS(const StrBuf *Source, const char **pStart, char separator, int nTokens);
281 unsigned long StrBufExtractNext_unsigned_long(const StrBuf* Source, const char **pStart, char separator);
282 long StrBufExtractNext_long(const StrBuf* Source, const char **pStart, char separator);
283 int StrBufExtractNext_int(const StrBuf* Source, const char **pStart, char separator);
286 void StrBufAppendBufPlain(StrBuf *Buf, const char *AppendBuf, long AppendSize, unsigned long Offset);
287 void StrBufAppendBuf(StrBuf *Buf, const StrBuf *AppendBuf, unsigned long Offset);
288 size_t CurlFillStrBuf_callback(void *ptr, size_t size, size_t nmemb, void *stream);
289 void StrBufAppendPrintf(StrBuf *Buf, const char *format, ...);
290 #ifdef SHOW_ME_VAPPEND_PRINTF
291 /* so owe don't create an include depndency, this is just visible on demand. */
292 void StrBufVAppendPrintf(StrBuf *Buf, const char *format, va_list ap);
294 void StrBufPrintf(StrBuf *Buf, const char *format, ...) __attribute__((__format__(__printf__,2,3)));
295 void StrBufCutLeft(StrBuf *Buf, int nChars);
296 void StrBufCutRight(StrBuf *Buf, int nChars);
297 void StrBufCutAt(StrBuf *Buf, int AfternChars, const char *At);
298 void StrBufTrim(StrBuf *Buf);
299 void StrBufSpaceToBlank(StrBuf *Buf);
300 void StrBufStripAllBut(StrBuf *Buf, char leftboundary, char rightboundary);
301 void StrBufUpCase(StrBuf *Buf);
302 void StrBufLowerCase(StrBuf *Buf);
303 void StrBufStripSlashes(StrBuf *Dir, int RemoveTrailingSlash);
304 void StrBufEUid_unescapize(StrBuf *target, const StrBuf *source);
305 void StrBufEUid_escapize(StrBuf *target, const StrBuf *source);
307 void StrBufToUnixLF(StrBuf *buf);
308 void StrBufReplaceChars(StrBuf *buf, char search, char replace);
310 int CompressBuffer(StrBuf *Buf);
311 void StrBufConvert(StrBuf *ConvertBuf, StrBuf *TmpBuf, void *pic);
312 void ctdl_iconv_open(const char *tocode, const char *fromcode, void *pic);
313 void StrBuf_RFC822_2_Utf8(StrBuf *Target,
314 const StrBuf *DecodeMe,
315 const StrBuf* DefaultCharset,
316 StrBuf *FoundCharset,
318 StrBuf *ConvertBuf2);
319 /* deprecated old version: */
320 void StrBuf_RFC822_to_Utf8(StrBuf *Target, const StrBuf *DecodeMe, const StrBuf* DefaultCharset, StrBuf *FoundCharset);
322 int StrBufDecodeBase64(StrBuf *Buf);
323 int StrBufDecodeHex(StrBuf *Buf);
324 int StrBufRFC2047encode(StrBuf **target, const StrBuf *source);
325 StrBuf *StrBufSanitizeEmailRecipientVector(const StrBuf *Recp,
327 StrBuf *EmailAddress,
329 int StrBufSanitizeAscii(StrBuf *Buf, const char Mute);
330 #define LB (1) /* Internal escape chars */
333 void StrBufUrlescAppend(StrBuf *OutBuf, const StrBuf *In, const char *PlainIn);
334 void StrBufHexescAppend(StrBuf *OutBuf, const StrBuf *In, const char *PlainIn);
335 void StrBufHexEscAppend(StrBuf *OutBuf, const StrBuf *In, const unsigned char *PlainIn, long PlainInLen);
336 long StrEscAppend(StrBuf *Target, const StrBuf *Source, const char *PlainIn, int nbsp, int nolinebreaks);
337 long StrECMAEscAppend(StrBuf *Target, const StrBuf *Source, const char *PlainIn);
338 long StrHtmlEcmaEscAppend(StrBuf *Target, const StrBuf *Source, const char *PlainIn, int nbsp, int nolinebreaks);
339 void StrMsgEscAppend(StrBuf *Target, const StrBuf *Source, const char *PlainIn);
340 void StrIcalEscAppend(StrBuf *Target, const StrBuf *Source, const char *PlainIn);
342 long StrTol(const StrBuf *Buf);
343 int StrToi(const StrBuf *Buf);
344 int StrBufIsNumber(const StrBuf *Buf);
345 long StrBuf_Utf8StrLen(StrBuf *Buf);
346 long StrBuf_Utf8StrCut(StrBuf *Buf, int maxlen);
348 const char *GuessMimeType(const char *data, size_t dlen);
349 const char* GuessMimeByFilename(const char *what, size_t len);
351 /* Run once at Programstart */
352 int LoadIconDir(const char *DirName);
354 /* Select the icon for a given MIME type */
355 const char *GetIconFilename(char *MimeType, size_t len);
358 /* URL parsing & connection data */
359 typedef struct ParsedURL ParsedURL;
362 StrBuf *UrlWithoutCred;
368 const char *LocalPart;
369 const char *PlainUrl;
373 struct hostent *HEnt;
374 struct sockaddr_in6 Addr;
378 void FreeURL(ParsedURL** Url);
379 int ParseURL(ParsedURL **Url, StrBuf *UrlStr, unsigned short DefaultPort);
380 void CurlPrepareURL(ParsedURL *Url);
385 int safestrncpy(char *dest, const char *src, size_t n);
386 int num_tokens (const char *source, char tok);
387 long extract_token(char *dest, const char *source, int parmnum, char separator, int maxlen);
388 long grab_token(char **dest, const char *source, int parmnum, char separator);
389 int extract_int (const char *source, int parmnum);
390 long extract_long (const char *source, int parmnum);
391 unsigned long extract_unsigned_long(const char *source, int parmnum);
392 void CtdlInitBase64Table(void);
393 size_t CtdlEncodeBase64(char *dest, const char *source, size_t sourcelen, int linebreaks);
394 int CtdlDecodeBase64(char *dest, const char *source, size_t length);
395 unsigned int decode_hex(char *Source);
396 int CtdlDecodeQuotedPrintable(char *decoded, char *encoded, int sourcelen);
397 void StripSlashes(char *Dir, int TrailingSlash);
398 size_t striplt(char *);
399 int haschar(const char *st, int ch);
400 void remove_token(char *source, int parmnum, char separator);
401 void fmt_date(char *buf, size_t n, time_t thetime, int seconds);
402 int is_msg_in_sequence_set(const char *mset, long msgnum);
403 char *memreadline(char *start, char *buf, int maxlen);
404 char *memreadlinelen(char *start, char *buf, int maxlen, int *retlen);
405 const char *cmemreadline(const char *start, char *buf, int maxlen);
406 const char *cmemreadlinelen(const char *start, char *buf, int maxlen, int *retlen);
407 #define IsEmptyStr(a) ((a)[0] == '\0')
408 #define num_parms(source) num_tokens(source,(char)'|')
409 int stripout(char *str, char leftboundary, char rightboundary);
410 long stripallbut(char *str, char leftboundary, char rightboundary);
411 char *myfgets(char *s, int size, FILE *stream);
412 void urlesc(char *outbuf, size_t oblen, char *strbuf);
413 char *CtdlTempFileName(char *prefix1, int prefix2);
414 FILE *CtdlTempFile(void);
415 void generate_uuid(char *buf);
416 char *bmstrcasestr(char *text, const char *pattern);
417 char *bmstrcasestr_len(char *text, size_t textlen, const char *pattern, size_t patlen);
418 const char *cbmstrcasestr(const char *text, const char *pattern);
419 const char *cbmstrcasestr_len(const char *text, size_t textlen, const char *pattern, size_t patlen);
420 void CtdlMakeTempFileName(char *name, int len);
421 char *rfc2047encode(char *line, long length);
422 int is_msg_in_mset(const char *mset, long msgnum);
423 int pattern2(char *search, char *patn);
424 void stripltlen(char *, int *);
425 char *html_to_ascii(const char *inputmsg, int msglen, int screenwidth, int do_citaformat);
426 void LoadEntityList(char *FileName);
432 #define CTDL_VCARD_MAGIC 0xa1f9
434 /* This data structure represents a vCard object currently in memory. */
445 struct vCard *vcard_new(void);
446 void vcard_add_prop(struct vCard *v, char *propname, char *propvalue);
447 struct vCard *vcard_load(char *vtext);
448 struct vCard *VCardLoad(StrBuf *vbtext);
450 void vcard_free(struct vCard *);
451 void vcard_set_prop(struct vCard *v, char *name, char *value, int append);
452 char *vcard_get_prop(struct vCard *v, char *propname, int is_partial,
453 int instance, int return_propname);
454 char *vcard_serialize(struct vCard *);
455 void vcard_fn_to_n(char *vname, char *n, size_t vname_size);
456 void remove_charset_attribute(char *strbuf);
457 long StrBufUnescape(StrBuf *Buf, int StripBlanks);
460 * Hash list implementation for Citadel
462 #define HKEY(a) a, (sizeof(a) - 1)
464 typedef struct HashList HashList;
466 typedef struct HashKey HashKey;
468 typedef struct HashPos HashPos;
470 typedef void (*DeleteHashDataFunc)(void * Data);
471 typedef const char *(*PrintHashContent)(void * Data);
472 typedef int (*CompareFunc)(const void* Item1, const void*Item2);
473 typedef long (*HashFunc)(const char *Str, long Len);
474 typedef void (*TransitionFunc) (void *Item1, void *Item2, int Odd);
475 typedef void (*PrintHashDataFunc) (const char *Key, void *Item, int Odd);
477 long Flathash(const char *str, long len);
478 long lFlathash(const char *str, long len);
479 #define IKEY(a) (const char*) &a, sizeof(a)
480 #define LKEY(a) (const char*) &a, sizeof(a)
482 HashList *NewHash(int Uniq, HashFunc F);
483 void DeleteHash(HashList **Hash);
484 void DeleteHashContent(HashList **Hash);
485 void HDeleteHash(void *vHash);
486 int GetHash(HashList *Hash, const char *HKey, long HKLen, void **Data);
487 void Put(HashList *Hash, const char *HKey, long HKLen, void *Data, DeleteHashDataFunc DeleteIt);
488 int GetKey(HashList *Hash, char *HKey, long HKLen, void **Data);
489 int GetHashKeys(HashList *Hash, char ***List);
490 int dbg_PrintHash(HashList *Hash, PrintHashContent first, PrintHashContent Second);
491 int PrintHash(HashList *Hash, TransitionFunc Trans, PrintHashDataFunc PrintEntry);
492 HashPos *GetNewHashPos(HashList *Hash, int StepWidth);
493 int GetHashPosFromKey(HashList *Hash, const char *HKey, long HKLen, HashPos *At);
494 int DeleteEntryFromHash(HashList *Hash, HashPos *At);
495 int GetHashPosCounter(HashList *Hash, HashPos *At);
496 void DeleteHashPos(HashPos **DelMe);
497 int NextHashPos(HashList *Hash, HashPos *At);
498 int GetHashPos(HashList *Hash, HashPos *At, long *HKLen, const char **HashKey, void **Data);
499 int GetNextHashPos(HashList *Hash, HashPos *At, long *HKLen, const char **HashKey, void **Data);
500 int GetHashAt(HashList *Hash,long At, long *HKLen, const char **HashKey, void **Data);
501 void SortByHashKey(HashList *Hash, int Order);
502 void SortByHashKeyStr(HashList *Hash);
503 int GetCount(HashList *Hash);
504 const void *GetSearchPayload(const void *HashVoid);
505 void SortByPayload(HashList *Hash, CompareFunc SortBy);
506 void reference_free_handler(void *ptr);
507 int HashLittle(const void *key, size_t length);
509 typedef struct MSet MSet;
510 int ParseMSet(MSet **MsetList, StrBuf *MSetStr);
511 int IsInMSetList(MSet *MSetList, long MsgNo);
512 void DeleteMSet(MSet **FreeMe);
514 void convert_spaces_to_underscores(char *str);
515 int CheckEncode(const char *pch, long len, const char *pche);
518 * Convert 4 bytes char into an Integer.
519 * usefull for easy inexpensive hashing
520 * of for char strings.
522 #define CHAR4TO_INT(a) ((int) (a[0] | (a[1]<<8) | (a[2]<<16) | (a[3]<<24)))
524 /* vNote implementation */
526 #define CTDL_VNOTE_MAGIC 0xa1fa
544 struct vnote *vnote_new(void);
545 struct vnote *vnote_new_from_str(char *s);
546 void vnote_free(struct vnote *v);
547 char *vnote_serialize(struct vnote *v);
548 void vnote_serialize_output_field(char *append_to, char *field, char *label);
554 * Create JSON style structures in C plus serialize them to one string
557 typedef struct JsonValue JsonValue;
560 void DeleteJSONValue(void *vJsonValue);
562 JsonValue *NewJsonObject(const char *Key, long keylen);
564 JsonValue *NewJsonArray(const char *Key, long keylen);
566 JsonValue *NewJsonNumber(const char *Key, long keylen, long Number);
568 JsonValue *NewJsonBigNumber(const char *Key, long keylen, double Number);
570 JsonValue *NewJsonString(const char *Key, long keylen, StrBuf *CopyMe);
572 JsonValue *NewJsonPlainString(const char *Key, long keylen, const char *CopyMe, long len);
574 JsonValue *NewJsonNull(const char *Key, long keylen);
576 JsonValue *NewJsonBool(const char *Key, long keylen, int value);
578 void JsonArrayAppend(JsonValue *Array, JsonValue *Val);
580 void JsonObjectAppend(JsonValue *Array, JsonValue *Val);
582 void SerializeJson(StrBuf *Target, JsonValue *Val, int FreeVal);
587 * Citadels Wildfire implementation, see
588 * http://www.firephp.org/Wiki/Reference/Protocol
589 * and http://wildfirehq.org/ for details
591 typedef void (*AddHeaderFunc)(const char *HdrName, const char *HdrValue);
593 typedef enum _WF_MessageType {
602 JsonValue *WildFireException(const char *Filename, long FileLen,
607 void WildFireAddArray(JsonValue *ReportBase, JsonValue *Array, WF_MessageType Type);
609 JsonValue *WildFireMessagePlain(const char *Filename, long fnlen,
611 const char *Message, long len,
612 WF_MessageType Type);
614 JsonValue *WildFireMessage(const char *Filename, long fnlen,
617 WF_MessageType Type);
619 void WildFireInitBacktrace(const char *argvNull, int AddBaseFrameSkip);
621 void WildFireSerializePayload(StrBuf *JsonBuffer, StrBuf *OutBuf, int *MsgCount, AddHeaderFunc AddHdr);
624 #define WF_STRUCTINDEX "1"
627 extern ConstStr RoomNetCfgStrs[maxRoomNetCfg];
629 /* Convenience function to "perform a function and cut a log record if result != 0" */
630 #define CtdlLogResult(x) if (x) syslog(LOG_CRIT, "%s:%d %s", __FILE__, __LINE__, strerror(errno))
632 #endif // LIBCITADEL_H