2 * Header file for libcitadel
4 * Copyright (c) 1987-2012 by the citadel.org team
6 * This program is open source software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 3.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
16 /* protect against double includes */
22 * since we reference time_t...
27 #include <arpa/inet.h>
28 #include <sys/types.h>
29 #include <netinet/in.h>
31 #define LIBCITADEL_VERSION_NUMBER 810
34 * Here's a bunch of stupid magic to make the MIME parser portable.
41 typedef enum AXLevel {
54 lastsent, /* Server internal use only */
64 enum GNET_POP3_PARTS { /* pop3client splits into these columns: */
68 GNET_POP3_DONT_DELETE_REMOTE = 4,
69 GNET_POP3_INTERVAL = 5
72 enum GNET_PUSH_SHARE { /* ignet_push_share splits into these columns: */
77 typedef enum __GPEXWhichPolicy {
87 * Note that not all views are implemented in all clients.
89 typedef enum _room_views {
90 VIEW_BBS = 0, /* Bulletin board view */
91 VIEW_MAILBOX = 1, /* Mailbox summary */
92 VIEW_ADDRESSBOOK = 2, /* Address book view */
93 VIEW_CALENDAR = 3, /* Calendar view */
94 VIEW_TASKS = 4, /* Tasks view */
95 VIEW_NOTES = 5, /* Notes view */
96 VIEW_WIKI = 6, /* Wiki view */
97 VIEW_CALBRIEF = 7, /* Brief Calendar view */
98 VIEW_JOURNAL = 8, /* Journal view */
99 VIEW_DRAFTS = 9, /* Drafts view */
100 VIEW_BLOG = 10, /* Blog view */
104 #define BLOG_EUIDBUF_SIZE 40
107 #define IsEmptyStr(a) ((a)[0] == '\0')
112 * another word to indicate n/a for a pointer if NULL already has a "meaning"
114 extern const char *StrBufNOTNULL;
120 char *libcitadel_version_string(void);
121 int libcitadel_version_number(void);
122 void StartLibCitadel(size_t basesize);
123 void ShutDownLibCitadel(void);
126 * MIME parser declarations
129 long extract_key(char *target, char *source, long sourcelen, char *key, long keylen, char KeyEnd);
132 typedef void (*MimeParserCallBackType)(char *cbname,
144 void mime_parser(char *content_start, char *content_end,
145 MimeParserCallBackType CallBack,
146 MimeParserCallBackType PreMultiPartCallBack,
147 MimeParserCallBackType PostMultiPartCallBack,
153 char *fixed_partnum(char *);
154 void mime_decode(char *partnum,
155 char *part_start, size_t length,
156 char *content_type, char *charset, char *encoding,
159 char *name, char *filename,
160 MimeParserCallBackType CallBack,
161 MimeParserCallBackType PreMultiPartCallBack,
162 MimeParserCallBackType PostMultiPartCallBack,
165 int mime_decode_now (char *part_start,
169 size_t *bytes_decoded);
170 void the_mime_parser(char *partnum,
171 char *content_start, char *content_end,
172 MimeParserCallBackType CallBack,
173 MimeParserCallBackType PreMultiPartCallBack,
174 MimeParserCallBackType PostMultiPartCallBack,
178 typedef struct StrBuf StrBuf;
181 #define CStrOf(a) #a, sizeof(#a) - 1
182 typedef struct _ConstStr {
186 #define CKEY(a) (a).Key, (a).len
188 StrBuf* NewStrBuf(void);
189 StrBuf* NewStrBufDup(const StrBuf *CopyMe);
190 StrBuf* NewStrBufPlain(const char* ptr, int nChars);
191 long StrBufShrinkToFit(StrBuf *Buf, int Force);
192 void ReAdjustEmptyBuf(StrBuf *Buf, long ThreshHold, long NewSize);
193 void NewStrBufDupAppendFlush(StrBuf **CreateRelpaceMe, StrBuf *CopyFlushMe, const char *NoMe, int KeepOriginal);
195 int StrBufPlain(StrBuf *Buf, const char* ptr, int nChars);
196 StrBuf* _NewConstStrBuf(const char* StringConstant, size_t SizeOfStrConstant);
197 #define NewConstStrBuf(a) _NewConstStrBuf(a, sizeof(a))
198 void FreeStrBuf (StrBuf **FreeMe);
199 char *SmashStrBuf (StrBuf **SmashMe);
200 void HFreeStrBuf (void *VFreeMe);
201 int FlushStrBuf(StrBuf *buf);
202 int FLUSHStrBuf(StrBuf *buf); /* expensive but doesn't leave content behind for others to find in case of errors */
204 const char *ChrPtr(const StrBuf *Str);
205 int StrLength(const StrBuf *Str);
206 #define SKEY(a) ChrPtr(a), StrLength(a)
207 long StrBufPeek(StrBuf *Buf, const char* ptr, long nThChar, char PeekValue);
208 long StrBufPook(StrBuf *Buf, const char* ptr, long nThChar, long nChars, char PookValue);
210 int StrBufTCP_read_line(StrBuf *buf, int *fd, int append, const char **Error);
211 int StrBufReadBLOB(StrBuf *Buf, int *fd, int append, long nBytes, const char **Error);
214 int StrBufReadBLOBBuffered(StrBuf *Buf,
222 int StrBufTCP_read_buffered_line(StrBuf *Line,
226 int selectresolution,
228 int StrBufTCP_read_buffered_line_fast(StrBuf *Line,
233 int selectresolution,
236 typedef enum _eReadState {
243 typedef struct _file_buffer {
245 const char *ReadWritePointer;
248 int nBlobBytesWanted;
252 typedef struct __fd_iobuffer {
257 long TotalSentAlready;
259 long ChunkSendRemain;
260 StrBuf *ChunkBuffer; /* just used if we don't have sendfile */
264 void FDIOBufferInit(FDIOBuffer *FDB, IOBuffer *IO, int FD, long TotalSendSize);
265 void FDIOBufferDelete(FDIOBuffer *FDB);
266 int FileSendChunked(FDIOBuffer *FDB, const char **Err);
267 int FileRecvChunked(FDIOBuffer *FDB, const char **Err);
268 eReadState WriteIOBAlreadyRead(FDIOBuffer *FDB, const char **Error);
270 long StrBuf_read_one_chunk_callback (int fd, short event, IOBuffer *FB);
271 int StrBuf_write_one_chunk_callback(int fd, short event, IOBuffer *FB);
273 eReadState StrBufChunkSipLine(StrBuf *LineBuf, IOBuffer *FB);
274 eReadState StrBufCheckBuffer(IOBuffer *FB);
275 long IOBufferStrLength(IOBuffer *FB);
277 int StrBufSipLine(StrBuf *LineBuf, const StrBuf *Buf, const char **Ptr);
278 int StrBufReplaceToken(StrBuf *Buf, long where, long HowLong, const char *Repl, long ReplLen);
279 int StrBufExtract_token(StrBuf *dest, const StrBuf *Source, int parmnum, char separator);
280 int StrBufSub(StrBuf *dest, const StrBuf *Source, unsigned long Offset, size_t nChars);
282 unsigned long StrBufExtract_unsigned_long(const StrBuf* Source, int parmnum, char separator);
283 long StrBufExtract_long(const StrBuf* Source, int parmnum, char separator);
284 int StrBufExtract_int(const StrBuf* Source, int parmnum, char separator);
285 int StrBufNum_tokens(const StrBuf *source, char tok);
286 int StrBufRemove_token(StrBuf *Source, int parmnum, char separator);
288 int StrBufHaveNextToken(const StrBuf *Source, const char **pStart);
289 int StrBufExtract_NextToken(StrBuf *dest, const StrBuf *Source, const char **pStart, char separator);
290 int StrBufSkip_NTokenS(const StrBuf *Source, const char **pStart, char separator, int nTokens);
291 unsigned long StrBufExtractNext_unsigned_long(const StrBuf* Source, const char **pStart, char separator);
292 long StrBufExtractNext_long(const StrBuf* Source, const char **pStart, char separator);
293 int StrBufExtractNext_int(const StrBuf* Source, const char **pStart, char separator);
296 void StrBufAppendBufPlain(StrBuf *Buf, const char *AppendBuf, long AppendSize, unsigned long Offset);
297 void StrBufAppendBuf(StrBuf *Buf, const StrBuf *AppendBuf, unsigned long Offset);
298 size_t CurlFillStrBuf_callback(void *ptr, size_t size, size_t nmemb, void *stream);
299 void StrBufAppendPrintf(StrBuf *Buf, const char *format, ...);
300 #ifdef SHOW_ME_VAPPEND_PRINTF
301 /* so owe don't create an include depndency, this is just visible on demand. */
302 void StrBufVAppendPrintf(StrBuf *Buf, const char *format, va_list ap);
304 void StrBufPrintf(StrBuf *Buf, const char *format, ...) __attribute__((__format__(__printf__,2,3)));
305 void StrBufCutLeft(StrBuf *Buf, int nChars);
306 void StrBufCutRight(StrBuf *Buf, int nChars);
307 void StrBufCutAt(StrBuf *Buf, int AfternChars, const char *At);
308 void StrBufTrim(StrBuf *Buf);
309 void StrBufSpaceToBlank(StrBuf *Buf);
310 void StrBufStripAllBut(StrBuf *Buf, char leftboundary, char rightboundary);
311 void StrBufUpCase(StrBuf *Buf);
312 void StrBufLowerCase(StrBuf *Buf);
313 void StrBufStripSlashes(StrBuf *Dir, int RemoveTrailingSlash);
314 void StrBufEUid_unescapize(StrBuf *target, const StrBuf *source);
315 void StrBufEUid_escapize(StrBuf *target, const StrBuf *source);
317 void StrBufToUnixLF(StrBuf *buf);
318 void StrBufReplaceChars(StrBuf *buf, char search, char replace);
320 int CompressBuffer(StrBuf *Buf);
321 void StrBufConvert(StrBuf *ConvertBuf, StrBuf *TmpBuf, void *pic);
322 void ctdl_iconv_open(const char *tocode, const char *fromcode, void *pic);
323 void StrBuf_RFC822_2_Utf8(StrBuf *Target,
324 const StrBuf *DecodeMe,
325 const StrBuf* DefaultCharset,
326 StrBuf *FoundCharset,
328 StrBuf *ConvertBuf2);
329 /* deprecated old version: */
330 void StrBuf_RFC822_to_Utf8(StrBuf *Target, const StrBuf *DecodeMe, const StrBuf* DefaultCharset, StrBuf *FoundCharset);
332 int StrBufDecodeBase64(StrBuf *Buf);
333 int StrBufDecodeHex(StrBuf *Buf);
334 int StrBufRFC2047encode(StrBuf **target, const StrBuf *source);
335 StrBuf *StrBufSanitizeEmailRecipientVector(const StrBuf *Recp,
337 StrBuf *EmailAddress,
339 int StrBufSanitizeAscii(StrBuf *Buf, const char Mute);
340 #define LB (1) /* Internal escape chars */
343 void StrBufUrlescAppend(StrBuf *OutBuf, const StrBuf *In, const char *PlainIn);
344 void StrBufHexescAppend(StrBuf *OutBuf, const StrBuf *In, const char *PlainIn);
345 void StrBufHexEscAppend(StrBuf *OutBuf, const StrBuf *In, const unsigned char *PlainIn, long PlainInLen);
346 long StrEscAppend(StrBuf *Target, const StrBuf *Source, const char *PlainIn, int nbsp, int nolinebreaks);
347 long StrECMAEscAppend(StrBuf *Target, const StrBuf *Source, const char *PlainIn);
348 long StrHtmlEcmaEscAppend(StrBuf *Target, const StrBuf *Source, const char *PlainIn, int nbsp, int nolinebreaks);
349 void StrMsgEscAppend(StrBuf *Target, const StrBuf *Source, const char *PlainIn);
350 void StrIcalEscAppend(StrBuf *Target, const StrBuf *Source, const char *PlainIn);
352 long StrTol(const StrBuf *Buf);
353 int StrToi(const StrBuf *Buf);
354 int StrBufIsNumber(const StrBuf *Buf);
355 long StrBuf_Utf8StrLen(StrBuf *Buf);
356 long StrBuf_Utf8StrCut(StrBuf *Buf, int maxlen);
358 const char *GuessMimeType(const char *data, size_t dlen);
359 const char* GuessMimeByFilename(const char *what, size_t len);
361 /* Run once at Programstart */
362 int LoadIconDir(const char *DirName);
364 /* Select the icon for a given MIME type */
365 const char *GetIconFilename(char *MimeType, size_t len);
368 /* URL parsing & connection data */
369 typedef struct ParsedURL ParsedURL;
372 StrBuf *UrlWithoutCred;
378 const char *LocalPart;
379 const char *PlainUrl;
383 struct hostent *HEnt;
384 struct sockaddr_in6 Addr;
388 void FreeURL(ParsedURL** Url);
389 int ParseURL(ParsedURL **Url, StrBuf *UrlStr, unsigned short DefaultPort);
390 void CurlPrepareURL(ParsedURL *Url);
395 int safestrncpy(char *dest, const char *src, size_t n);
396 int num_tokens (const char *source, char tok);
397 long extract_token(char *dest, const char *source, int parmnum, char separator, int maxlen);
398 long grab_token(char **dest, const char *source, int parmnum, char separator);
399 int extract_int (const char *source, int parmnum);
400 long extract_long (const char *source, int parmnum);
401 unsigned long extract_unsigned_long(const char *source, int parmnum);
402 void CtdlInitBase64Table(void);
403 size_t CtdlEncodeBase64(char *dest, const char *source, size_t sourcelen, int linebreaks);
404 int CtdlDecodeBase64(char *dest, const char *source, size_t length);
405 unsigned int decode_hex(char *Source);
406 int CtdlDecodeQuotedPrintable(char *decoded, char *encoded, int sourcelen);
407 void StripSlashes(char *Dir, int TrailingSlash);
408 size_t striplt(char *);
409 int haschar(const char *st, int ch);
410 void remove_token(char *source, int parmnum, char separator);
411 void fmt_date(char *buf, size_t n, time_t thetime, int seconds);
412 int is_msg_in_sequence_set(const char *mset, long msgnum);
413 char *memreadline(char *start, char *buf, int maxlen);
414 char *memreadlinelen(char *start, char *buf, int maxlen, int *retlen);
415 const char *cmemreadline(const char *start, char *buf, int maxlen);
416 const char *cmemreadlinelen(const char *start, char *buf, int maxlen, int *retlen);
417 #define IsEmptyStr(a) ((a)[0] == '\0')
418 #define num_parms(source) num_tokens(source,(char)'|')
419 int stripout(char *str, char leftboundary, char rightboundary);
420 long stripallbut(char *str, char leftboundary, char rightboundary);
421 char *myfgets(char *s, int size, FILE *stream);
422 void urlesc(char *outbuf, size_t oblen, char *strbuf);
423 char *CtdlTempFileName(char *prefix1, int prefix2);
424 FILE *CtdlTempFile(void);
425 void generate_uuid(char *buf);
426 char *bmstrcasestr(char *text, const char *pattern);
427 char *bmstrcasestr_len(char *text, size_t textlen, const char *pattern, size_t patlen);
428 const char *cbmstrcasestr(const char *text, const char *pattern);
429 const char *cbmstrcasestr_len(const char *text, size_t textlen, const char *pattern, size_t patlen);
430 void CtdlMakeTempFileName(char *name, int len);
431 char *rfc2047encode(char *line, long length);
432 int is_msg_in_mset(const char *mset, long msgnum);
433 int pattern2(char *search, char *patn);
434 void stripltlen(char *, int *);
435 char *html_to_ascii(const char *inputmsg, int msglen, int screenwidth, int do_citaformat);
436 void LoadEntityList(char *FileName);
442 #define CTDL_VCARD_MAGIC 0xa1f9
444 /* This data structure represents a vCard object currently in memory. */
455 struct vCard *vcard_new(void);
456 void vcard_add_prop(struct vCard *v, char *propname, char *propvalue);
457 struct vCard *vcard_load(char *vtext);
458 struct vCard *VCardLoad(StrBuf *vbtext);
460 void vcard_free(struct vCard *);
461 void vcard_set_prop(struct vCard *v, char *name, char *value, int append);
462 char *vcard_get_prop(struct vCard *v, char *propname, int is_partial,
463 int instance, int return_propname);
464 char *vcard_serialize(struct vCard *);
465 void vcard_fn_to_n(char *vname, char *n, size_t vname_size);
466 void remove_charset_attribute(char *strbuf);
467 long StrBufUnescape(StrBuf *Buf, int StripBlanks);
470 * Hash list implementation for Citadel
472 #define HKEY(a) a, (sizeof(a) - 1)
474 typedef struct HashList HashList;
476 typedef struct HashKey HashKey;
478 typedef struct HashPos HashPos;
480 typedef void (*DeleteHashDataFunc)(void * Data);
481 typedef const char *(*PrintHashContent)(void * Data);
482 typedef int (*CompareFunc)(const void* Item1, const void*Item2);
483 typedef long (*HashFunc)(const char *Str, long Len);
484 typedef void (*TransitionFunc) (void *Item1, void *Item2, int Odd);
485 typedef void (*PrintHashDataFunc) (const char *Key, void *Item, int Odd);
487 long Flathash(const char *str, long len);
488 long lFlathash(const char *str, long len);
489 #define IKEY(a) (const char*) &a, sizeof(a)
490 #define LKEY(a) (const char*) &a, sizeof(a)
492 int TestValidateHash(HashList *TestHash);
494 HashList *NewHash(int Uniq, HashFunc F);
495 void DeleteHash(HashList **Hash);
496 void DeleteHashContent(HashList **Hash);
497 void HDeleteHash(void *vHash);
498 int GetHash(HashList *Hash, const char *HKey, long HKLen, void **Data);
499 void Put(HashList *Hash, const char *HKey, long HKLen, void *Data, DeleteHashDataFunc DeleteIt);
500 int GetKey(HashList *Hash, char *HKey, long HKLen, void **Data);
501 int GetHashKeys(HashList *Hash, char ***List);
502 int dbg_PrintHash(HashList *Hash, PrintHashContent first, PrintHashContent Second);
503 int PrintHash(HashList *Hash, TransitionFunc Trans, PrintHashDataFunc PrintEntry);
504 HashPos *GetNewHashPos(HashList *Hash, int StepWidth);
505 int GetHashPosFromKey(HashList *Hash, const char *HKey, long HKLen, HashPos *At);
506 int DeleteEntryFromHash(HashList *Hash, HashPos *At);
507 int GetHashPosCounter(HashList *Hash, HashPos *At);
508 void DeleteHashPos(HashPos **DelMe);
509 int NextHashPos(HashList *Hash, HashPos *At);
510 int GetHashPos(HashList *Hash, HashPos *At, long *HKLen, const char **HashKey, void **Data);
511 int GetNextHashPos(HashList *Hash, HashPos *At, long *HKLen, const char **HashKey, void **Data);
512 int GetHashAt(HashList *Hash,long At, long *HKLen, const char **HashKey, void **Data);
513 void SortByHashKey(HashList *Hash, int Order);
514 void SortByHashKeyStr(HashList *Hash);
515 int GetCount(HashList *Hash);
516 const void *GetSearchPayload(const void *HashVoid);
517 void SortByPayload(HashList *Hash, CompareFunc SortBy);
518 void reference_free_handler(void *ptr);
519 int HashLittle(const void *key, size_t length);
521 typedef struct MSet MSet;
522 int ParseMSet(MSet **MsetList, StrBuf *MSetStr);
523 int IsInMSetList(MSet *MSetList, long MsgNo);
524 void DeleteMSet(MSet **FreeMe);
526 void convert_spaces_to_underscores(char *str);
527 int CheckEncode(const char *pch, long len, const char *pche);
530 * Convert 4 bytes char into an Integer.
531 * usefull for easy inexpensive hashing
532 * of for char strings.
534 #define CHAR4TO_INT(a) ((int) (a[0] | (a[1]<<8) | (a[2]<<16) | (a[3]<<24)))
536 /* vNote implementation */
538 #define CTDL_VNOTE_MAGIC 0xa1fa
556 struct vnote *vnote_new(void);
557 struct vnote *vnote_new_from_str(char *s);
558 void vnote_free(struct vnote *v);
559 char *vnote_serialize(struct vnote *v);
560 void vnote_serialize_output_field(char *append_to, char *field, char *label);
566 * Create JSON style structures in C plus serialize them to one string
569 typedef struct JsonValue JsonValue;
572 void DeleteJSONValue(void *vJsonValue);
574 JsonValue *NewJsonObject(const char *Key, long keylen);
576 JsonValue *NewJsonArray(const char *Key, long keylen);
578 JsonValue *NewJsonNumber(const char *Key, long keylen, long Number);
580 JsonValue *NewJsonBigNumber(const char *Key, long keylen, double Number);
582 JsonValue *NewJsonString(const char *Key, long keylen, StrBuf *CopyMe);
584 JsonValue *NewJsonPlainString(const char *Key, long keylen, const char *CopyMe, long len);
586 JsonValue *NewJsonNull(const char *Key, long keylen);
588 JsonValue *NewJsonBool(const char *Key, long keylen, int value);
590 void JsonArrayAppend(JsonValue *Array, JsonValue *Val);
592 void JsonObjectAppend(JsonValue *Array, JsonValue *Val);
594 void SerializeJson(StrBuf *Target, JsonValue *Val, int FreeVal);
599 * Citadels Wildfire implementation, see
600 * http://www.firephp.org/Wiki/Reference/Protocol
601 * and http://wildfirehq.org/ for details
603 typedef void (*AddHeaderFunc)(const char *HdrName, const char *HdrValue);
605 typedef enum _WF_MessageType {
614 JsonValue *WildFireException(const char *Filename, long FileLen,
619 void WildFireAddArray(JsonValue *ReportBase, JsonValue *Array, WF_MessageType Type);
621 JsonValue *WildFireMessagePlain(const char *Filename, long fnlen,
623 const char *Message, long len,
624 WF_MessageType Type);
626 JsonValue *WildFireMessage(const char *Filename, long fnlen,
629 WF_MessageType Type);
631 void WildFireInitBacktrace(const char *argvNull, int AddBaseFrameSkip);
633 void WildFireSerializePayload(StrBuf *JsonBuffer, StrBuf *OutBuf, int *MsgCount, AddHeaderFunc AddHdr);
636 #define WF_STRUCTINDEX "1"
639 extern ConstStr RoomNetCfgStrs[maxRoomNetCfg];
641 /* Convenience function to "perform a function and cut a log record if result != 0" */
642 #define CtdlLogResult(x) if (x) syslog(LOG_CRIT, "%s:%d %s", __FILE__, __LINE__, strerror(errno))
644 /* a nice consistent place to define how we turn a message id into a thread id hash */
645 #define ThreadIdHash(Buf) abs(HashLittle(ChrPtr(Buf), StrLength(Buf)))
648 #endif // LIBCITADEL_H