8 #include <sys/select.h>
10 #include <sys/types.h>
11 #define SHOW_ME_VAPPEND_PRINTF
13 #include "libcitadel.h"
25 int ZEXPORT compress_gzip(Bytef * dest, size_t * destLen,
26 const Bytef * source, uLong sourceLen, int level);
28 int BaseStrBufSize = 64;
30 const char *StrBufNOTNULL = ((char*) NULL) - 1;
32 const char HexList[256][3] = {
33 "00","01","02","03","04","05","06","07","08","09","0A","0B","0C","0D","0E","0F",
34 "10","11","12","13","14","15","16","17","18","19","1A","1B","1C","1D","1E","1F",
35 "20","21","22","23","24","25","26","27","28","29","2A","2B","2C","2D","2E","2F",
36 "30","31","32","33","34","35","36","37","38","39","3A","3B","3C","3D","3E","3F",
37 "40","41","42","43","44","45","46","47","48","49","4A","4B","4C","4D","4E","4F",
38 "50","51","52","53","54","55","56","57","58","59","5A","5B","5C","5D","5E","5F",
39 "60","61","62","63","64","65","66","67","68","69","6A","6B","6C","6D","6E","6F",
40 "70","71","72","73","74","75","76","77","78","79","7A","7B","7C","7D","7E","7F",
41 "80","81","82","83","84","85","86","87","88","89","8A","8B","8C","8D","8E","8F",
42 "90","91","92","93","94","95","96","97","98","99","9A","9B","9C","9D","9E","9F",
43 "A0","A1","A2","A3","A4","A5","A6","A7","A8","A9","AA","AB","AC","AD","AE","AF",
44 "B0","B1","B2","B3","B4","B5","B6","B7","B8","B9","BA","BB","BC","BD","BE","BF",
45 "C0","C1","C2","C3","C4","C5","C6","C7","C8","C9","CA","CB","CC","CD","CE","CF",
46 "D0","D1","D2","D3","D4","D5","D6","D7","D8","D9","DA","DB","DC","DD","DE","DF",
47 "E0","E1","E2","E3","E4","E5","E6","E7","E8","E9","EA","EB","EC","ED","EE","EF",
48 "F0","F1","F2","F3","F4","F5","F6","F7","F8","F9","FA","FB","FC","FD","FE","FF"};
51 * @defgroup StrBuf Stringbuffer, A class for manipulating strings with dynamic buffers
52 * StrBuf is a versatile class, aiding the handling of dynamic strings
53 * * reduce de/reallocations
54 * * reduce the need to remeasure it
55 * * reduce scanning over the string (in @ref StrBuf_NextTokenizer "Tokenizers")
56 * * allow asyncroneous IO for line and Blob based operations
57 * * reduce the use of memove in those
58 * * Quick filling in several operations with append functions
62 * @defgroup StrBuf_DeConstructors Create/Destroy StrBufs
67 * @defgroup StrBuf_Cast Cast operators to interact with char* based code
69 * use these operators to interfere with code demanding char*;
70 * if you need to own the content, smash me. Avoid, since we loose the length information.
74 * @defgroup StrBuf_Filler Create/Replace/Append Content into a StrBuf
76 * operations to get your Strings into a StrBuf, manipulating them, or appending
79 * @defgroup StrBuf_NextTokenizer Fast tokenizer to pull tokens in sequence
81 * Quick tokenizer; demands of the user to pull its tokens in sequence
85 * @defgroup StrBuf_Tokenizer tokenizer Functions; Slow ones.
87 * versatile tokenizer; random access to tokens, but slower; Prefer the @ref StrBuf_NextTokenizer "Next Tokenizer"
91 * @defgroup StrBuf_BufferedIO Buffered IO with Asynchroneous reads and no unneeded memmoves (the fast ones)
93 * File IO to fill StrBufs; Works with work-buffer shared across several calls;
94 * External Cursor to maintain the current read position inside of the buffer
95 * the non-fast ones will use memove to keep the start of the buffer the read buffer (which is slower)
99 * @defgroup StrBuf_IO FileIO; Prefer @ref StrBuf_BufferedIO
105 * @defgroup StrBuf_DeEnCoder functions to translate the contents of a buffer
107 * these functions translate the content of a buffer into another representation;
108 * some are combined Fillers and encoders
112 * Private Structure for the Stringbuffer
115 char *buf; /**< the pointer to the dynamic buffer */
116 long BufSize; /**< how many spcae do we optain */
117 long BufUsed; /**< StNumber of Chars used excluding the trailing \\0 */
118 int ConstBuf; /**< are we just a wrapper arround a static buffer and musn't we be changed? */
120 long nIncreases; /**< for profiling; cound how many times we needed more */
121 char bt [SIZ]; /**< Stacktrace of last increase */
122 char bt_lastinc [SIZ]; /**< How much did we increase last time? */
127 static inline int Ctdl_GetUtf8SequenceLength(const char *CharS, const char *CharE);
128 static inline int Ctdl_IsUtf8SequenceStart(const char Char);
131 #ifdef HAVE_BACKTRACE
132 static void StrBufBacktrace(StrBuf *Buf, int which)
136 void *stack_frames[50];
141 pstart = pch = Buf->bt;
143 pstart = pch = Buf->bt_lastinc;
144 size = backtrace(stack_frames, sizeof(stack_frames) / sizeof(void*));
145 strings = backtrace_symbols(stack_frames, size);
146 for (i = 0; i < size; i++) {
148 n = snprintf(pch, SIZ - (pch - pstart), "%s\\n", strings[i]);
150 n = snprintf(pch, SIZ - (pch - pstart), "%p\\n", stack_frames[i]);
159 void dbg_FreeStrBuf(StrBuf *FreeMe, char *FromWhere)
161 if (hFreeDbglog == -1){
162 pid_t pid = getpid();
164 snprintf(path, SIZ, "/tmp/libcitadel_strbuf_realloc.log.%d", pid);
165 hFreeDbglog = open(path, O_APPEND|O_CREAT|O_WRONLY);
167 if ((*FreeMe)->nIncreases > 0)
171 n = snprintf(buf, SIZ * 3, "%c+|%ld|%ld|%ld|%s|%s|\n",
173 (*FreeMe)->nIncreases,
177 (*FreeMe)->bt_lastinc);
178 n = write(hFreeDbglog, buf, n);
184 n = snprintf(buf, 128, "%c_|0|%ld%ld|\n",
188 n = write(hFreeDbglog, buf, n);
192 void dbg_IncreaseBuf(StrBuf *IncMe)
195 #ifdef HAVE_BACKTRACE
196 StrBufBacktrace(Buf, 1);
200 void dbg_Init(StrBuf *Buf)
204 Buf->bt_lastinc[0] = '\0';
205 #ifdef HAVE_BACKTRACE
206 StrBufBacktrace(Buf, 0);
212 #define dbg_FreeStrBuf(a, b)
213 #define dbg_IncreaseBuf(a)
219 * @ingroup StrBuf_Cast
220 * @brief Cast operator to Plain String
221 * @note if the buffer is altered by StrBuf operations, this pointer may become
222 * invalid. So don't lean on it after altering the buffer!
223 * Since this operation is considered cheap, rather call it often than risking
224 * your pointer to become invalid!
225 * @param Str the string we want to get the c-string representation for
226 * @returns the Pointer to the Content. Don't mess with it!
228 inline const char *ChrPtr(const StrBuf *Str)
236 * @ingroup StrBuf_Cast
237 * @brief since we know strlen()'s result, provide it here.
238 * @param Str the string to return the length to
239 * @returns contentlength of the buffer
241 inline int StrLength(const StrBuf *Str)
243 return (Str != NULL) ? Str->BufUsed : 0;
247 * @ingroup StrBuf_DeConstructors
248 * @brief local utility function to resize the buffer
249 * @param Buf the buffer whichs storage we should increase
250 * @param KeepOriginal should we copy the original buffer or just start over with a new one
251 * @param DestSize what should fit in after?
253 static int IncreaseBuf(StrBuf *Buf, int KeepOriginal, int DestSize)
256 size_t NewSize = Buf->BufSize * 2;
262 while ((NewSize <= DestSize) && (NewSize != 0))
268 NewBuf= (char*) malloc(NewSize);
272 if (KeepOriginal && (Buf->BufUsed > 0))
274 memcpy(NewBuf, Buf->buf, Buf->BufUsed);
283 Buf->BufSize = NewSize;
285 dbg_IncreaseBuf(Buf);
291 * @ingroup StrBuf_DeConstructors
292 * @brief shrink / increase an _EMPTY_ buffer to NewSize. Buffercontent is thoroughly ignored and flushed.
293 * @param Buf Buffer to shrink (has to be empty)
294 * @param ThreshHold if the buffer is bigger then this, its readjusted
295 * @param NewSize if we Shrink it, how big are we going to be afterwards?
297 void ReAdjustEmptyBuf(StrBuf *Buf, long ThreshHold, long NewSize)
300 (Buf->BufUsed == 0) &&
301 (Buf->BufSize < ThreshHold)) {
303 Buf->buf = (char*) malloc(NewSize);
305 Buf->BufSize = NewSize;
310 * @ingroup StrBuf_DeConstructors
311 * @brief shrink long term buffers to their real size so they don't waste memory
312 * @param Buf buffer to shrink
313 * @param Force if not set, will just executed if the buffer is much to big; set for lifetime strings
314 * @returns physical size of the buffer
316 long StrBufShrinkToFit(StrBuf *Buf, int Force)
321 (Buf->BufUsed + (Buf->BufUsed / 3) > Buf->BufSize))
323 char *TmpBuf = (char*) malloc(Buf->BufUsed + 1);
324 memcpy (TmpBuf, Buf->buf, Buf->BufUsed + 1);
325 Buf->BufSize = Buf->BufUsed + 1;
333 * @ingroup StrBuf_DeConstructors
334 * @brief Allocate a new buffer with default buffer size
335 * @returns the new stringbuffer
337 StrBuf* NewStrBuf(void)
341 NewBuf = (StrBuf*) malloc(sizeof(StrBuf));
342 NewBuf->buf = (char*) malloc(BaseStrBufSize);
343 NewBuf->buf[0] = '\0';
344 NewBuf->BufSize = BaseStrBufSize;
346 NewBuf->ConstBuf = 0;
354 * @ingroup StrBuf_DeConstructors
355 * @brief Copy Constructor; returns a duplicate of CopyMe
356 * @param CopyMe Buffer to faxmilate
357 * @returns the new stringbuffer
359 StrBuf* NewStrBufDup(const StrBuf *CopyMe)
366 NewBuf = (StrBuf*) malloc(sizeof(StrBuf));
367 NewBuf->buf = (char*) malloc(CopyMe->BufSize);
368 memcpy(NewBuf->buf, CopyMe->buf, CopyMe->BufUsed + 1);
369 NewBuf->BufUsed = CopyMe->BufUsed;
370 NewBuf->BufSize = CopyMe->BufSize;
371 NewBuf->ConstBuf = 0;
379 * @ingroup StrBuf_DeConstructors
380 * @brief create a new Buffer using an existing c-string
381 * this function should also be used if you want to pre-suggest
382 * the buffer size to allocate in conjunction with ptr == NULL
383 * @param ptr the c-string to copy; may be NULL to create a blank instance
384 * @param nChars How many chars should we copy; -1 if we should measure the length ourselves
385 * @returns the new stringbuffer
387 StrBuf* NewStrBufPlain(const char* ptr, int nChars)
390 size_t Siz = BaseStrBufSize;
393 NewBuf = (StrBuf*) malloc(sizeof(StrBuf));
395 CopySize = strlen((ptr != NULL)?ptr:"");
399 while ((Siz <= CopySize) && (Siz != 0))
407 NewBuf->buf = (char*) malloc(Siz);
408 NewBuf->BufSize = Siz;
410 memcpy(NewBuf->buf, ptr, CopySize);
411 NewBuf->buf[CopySize] = '\0';
412 NewBuf->BufUsed = CopySize;
415 NewBuf->buf[0] = '\0';
418 NewBuf->ConstBuf = 0;
426 * @ingroup StrBuf_DeConstructors
427 * @brief Set an existing buffer from a c-string
428 * @param Buf buffer to load
429 * @param ptr c-string to put into
430 * @param nChars set to -1 if we should work 0-terminated
431 * @returns the new length of the string
433 int StrBufPlain(StrBuf *Buf, const char* ptr, int nChars)
448 CopySize = strlen(ptr);
452 while ((Siz <= CopySize) && (Siz != 0))
460 if (Siz != Buf->BufSize)
461 IncreaseBuf(Buf, 0, Siz);
462 memcpy(Buf->buf, ptr, CopySize);
463 Buf->buf[CopySize] = '\0';
464 Buf->BufUsed = CopySize;
471 * @ingroup StrBuf_DeConstructors
472 * @brief use strbuf as wrapper for a string constant for easy handling
473 * @param StringConstant a string to wrap
474 * @param SizeOfStrConstant should be sizeof(StringConstant)-1
476 StrBuf* _NewConstStrBuf(const char* StringConstant, size_t SizeOfStrConstant)
480 NewBuf = (StrBuf*) malloc(sizeof(StrBuf));
481 NewBuf->buf = (char*) StringConstant;
482 NewBuf->BufSize = SizeOfStrConstant;
483 NewBuf->BufUsed = SizeOfStrConstant;
484 NewBuf->ConstBuf = 1;
493 * @ingroup StrBuf_DeConstructors
494 * @brief flush the content of a Buf; keep its struct
495 * @param buf Buffer to flush
497 int FlushStrBuf(StrBuf *buf)
509 * @ingroup StrBuf_DeConstructors
510 * @brief wipe the content of a Buf thoroughly (overwrite it -> expensive); keep its struct
511 * @param buf Buffer to wipe
513 int FLUSHStrBuf(StrBuf *buf)
519 if (buf->BufUsed > 0) {
520 memset(buf->buf, 0, buf->BufUsed);
527 int hFreeDbglog = -1;
530 * @ingroup StrBuf_DeConstructors
531 * @brief Release a Buffer
532 * Its a double pointer, so it can NULL your pointer
533 * so fancy SIG11 appear instead of random results
534 * @param FreeMe Pointer Pointer to the buffer to free
536 void FreeStrBuf (StrBuf **FreeMe)
541 dbg_FreeStrBuf(FreeMe, 'F');
543 if (!(*FreeMe)->ConstBuf)
544 free((*FreeMe)->buf);
550 * @ingroup StrBuf_DeConstructors
551 * @brief flatten a Buffer to the Char * we return
552 * Its a double pointer, so it can NULL your pointer
553 * so fancy SIG11 appear instead of random results
554 * The Callee then owns the buffer and is responsible for freeing it.
555 * @param SmashMe Pointer Pointer to the buffer to release Buf from and free
556 * @returns the pointer of the buffer; Callee owns the memory thereafter.
558 char *SmashStrBuf (StrBuf **SmashMe)
562 if ((SmashMe == NULL) || (*SmashMe == NULL))
565 dbg_FreeStrBuf(SmashMe, 'S');
567 Ret = (*SmashMe)->buf;
574 * @ingroup StrBuf_DeConstructors
575 * @brief Release the buffer
576 * If you want put your StrBuf into a Hash, use this as Destructor.
577 * @param VFreeMe untyped pointer to a StrBuf. be shure to do the right thing [TM]
579 void HFreeStrBuf (void *VFreeMe)
581 StrBuf *FreeMe = (StrBuf*)VFreeMe;
585 dbg_FreeStrBuf(SmashMe, 'H');
587 if (!FreeMe->ConstBuf)
593 /*******************************************************************************
594 * Simple string transformations *
595 *******************************************************************************/
599 * @brief Wrapper around atol
601 long StrTol(const StrBuf *Buf)
606 return atol(Buf->buf);
613 * @brief Wrapper around atoi
615 int StrToi(const StrBuf *Buf)
619 if (Buf->BufUsed > 0)
620 return atoi(Buf->buf);
627 * @brief Checks to see if the string is a pure number
628 * @param Buf The buffer to inspect
629 * @returns 1 if its a pure number, 0, if not.
631 int StrBufIsNumber(const StrBuf *Buf) {
633 if ((Buf == NULL) || (Buf->BufUsed == 0)) {
636 strtoll(Buf->buf, &pEnd, 10);
637 if (pEnd == Buf->buf)
639 if ((pEnd != NULL) && (pEnd == Buf->buf + Buf->BufUsed))
641 if (Buf->buf == pEnd)
647 * @ingroup StrBuf_Filler
648 * @brief modifies a Single char of the Buf
649 * You can point to it via char* or a zero-based integer
650 * @param Buf The buffer to manipulate
651 * @param ptr char* to zero; use NULL if unused
652 * @param nThChar zero based pointer into the string; use -1 if unused
653 * @param PeekValue The Character to place into the position
655 long StrBufPeek(StrBuf *Buf, const char* ptr, long nThChar, char PeekValue)
660 nThChar = ptr - Buf->buf;
661 if ((nThChar < 0) || (nThChar > Buf->BufUsed))
663 Buf->buf[nThChar] = PeekValue;
668 * @ingroup StrBuf_Filler
669 * @brief modifies a range of chars of the Buf
670 * You can point to it via char* or a zero-based integer
671 * @param Buf The buffer to manipulate
672 * @param ptr char* to zero; use NULL if unused
673 * @param nThChar zero based pointer into the string; use -1 if unused
674 * @param nChars how many chars are to be flushed?
675 * @param PookValue The Character to place into that area
677 long StrBufPook(StrBuf *Buf, const char* ptr, long nThChar, long nChars, char PookValue)
682 nThChar = ptr - Buf->buf;
683 if ((nThChar < 0) || (nThChar > Buf->BufUsed))
685 if (nThChar + nChars > Buf->BufUsed)
686 nChars = Buf->BufUsed - nThChar;
688 memset(Buf->buf + nThChar, PookValue, nChars);
689 /* just to be shure... */
690 Buf->buf[Buf->BufUsed] = 0;
695 * @ingroup StrBuf_Filler
696 * @brief Append a StringBuffer to the buffer
697 * @param Buf Buffer to modify
698 * @param AppendBuf Buffer to copy at the end of our buffer
699 * @param Offset Should we start copying from an offset?
701 void StrBufAppendBuf(StrBuf *Buf, const StrBuf *AppendBuf, unsigned long Offset)
703 if ((AppendBuf == NULL) || (Buf == NULL) || (AppendBuf->buf == NULL))
706 if (Buf->BufSize - Offset < AppendBuf->BufUsed + Buf->BufUsed + 1)
709 AppendBuf->BufUsed + Buf->BufUsed);
711 memcpy(Buf->buf + Buf->BufUsed,
712 AppendBuf->buf + Offset,
713 AppendBuf->BufUsed - Offset);
714 Buf->BufUsed += AppendBuf->BufUsed - Offset;
715 Buf->buf[Buf->BufUsed] = '\0';
720 * @ingroup StrBuf_Filler
721 * @brief Append a C-String to the buffer
722 * @param Buf Buffer to modify
723 * @param AppendBuf Buffer to copy at the end of our buffer
724 * @param AppendSize number of bytes to copy; set to -1 if we should count it in advance
725 * @param Offset Should we start copying from an offset?
727 void StrBufAppendBufPlain(StrBuf *Buf, const char *AppendBuf, long AppendSize, unsigned long Offset)
730 long BufSizeRequired;
732 if ((AppendBuf == NULL) || (Buf == NULL))
736 aps = strlen(AppendBuf + Offset);
738 aps = AppendSize - Offset;
740 BufSizeRequired = Buf->BufUsed + aps + 1;
741 if (Buf->BufSize <= BufSizeRequired)
742 IncreaseBuf(Buf, (Buf->BufUsed > 0), BufSizeRequired);
744 memcpy(Buf->buf + Buf->BufUsed,
748 Buf->buf[Buf->BufUsed] = '\0';
752 * @ingroup StrBuf_Filler
753 * @brief sprintf like function appending the formated string to the buffer
754 * vsnprintf version to wrap into own calls
755 * @param Buf Buffer to extend by format and Params
756 * @param format printf alike format to add
757 * @param ap va_list containing the items for format
759 void StrBufVAppendPrintf(StrBuf *Buf, const char *format, va_list ap)
767 if ((Buf == NULL) || (format == NULL))
770 BufSize = Buf->BufSize;
771 nWritten = Buf->BufSize + 1;
772 Offset = Buf->BufUsed;
773 newused = Offset + nWritten;
775 while (newused >= BufSize) {
777 nWritten = vsnprintf(Buf->buf + Offset,
778 Buf->BufSize - Offset,
781 newused = Offset + nWritten;
782 if (newused >= Buf->BufSize) {
783 if (IncreaseBuf(Buf, 1, newused) == -1)
784 return; /* TODO: error handling? */
785 newused = Buf->BufSize + 1;
788 Buf->BufUsed = Offset + nWritten;
789 BufSize = Buf->BufSize;
796 * @ingroup StrBuf_Filler
797 * @brief sprintf like function appending the formated string to the buffer
798 * @param Buf Buffer to extend by format and Params
799 * @param format printf alike format to add
801 void StrBufAppendPrintf(StrBuf *Buf, const char *format, ...)
809 if ((Buf == NULL) || (format == NULL))
812 BufSize = Buf->BufSize;
813 nWritten = Buf->BufSize + 1;
814 Offset = Buf->BufUsed;
815 newused = Offset + nWritten;
817 while (newused >= BufSize) {
818 va_start(arg_ptr, format);
819 nWritten = vsnprintf(Buf->buf + Buf->BufUsed,
820 Buf->BufSize - Buf->BufUsed,
823 newused = Buf->BufUsed + nWritten;
824 if (newused >= Buf->BufSize) {
825 if (IncreaseBuf(Buf, 1, newused) == -1)
826 return; /* TODO: error handling? */
827 newused = Buf->BufSize + 1;
830 Buf->BufUsed += nWritten;
831 BufSize = Buf->BufSize;
838 * @ingroup StrBuf_Filler
839 * @brief sprintf like function putting the formated string into the buffer
840 * @param Buf Buffer to extend by format and Parameters
841 * @param format printf alike format to add
843 void StrBufPrintf(StrBuf *Buf, const char *format, ...)
848 if ((Buf == NULL) || (format == NULL))
851 nWritten = Buf->BufSize + 1;
852 while (nWritten >= Buf->BufSize) {
853 va_start(arg_ptr, format);
854 nWritten = vsnprintf(Buf->buf, Buf->BufSize, format, arg_ptr);
856 if (nWritten >= Buf->BufSize) {
857 if (IncreaseBuf(Buf, 0, 0) == -1)
858 return; /* TODO: error handling? */
859 nWritten = Buf->BufSize + 1;
862 Buf->BufUsed = nWritten ;
867 * @ingroup StrBuf_Filler
868 * @brief Callback for cURL to append the webserver reply to a buffer
869 * @param ptr pre-defined by the cURL API; see man 3 curl for mre info
870 * @param size pre-defined by the cURL API; see man 3 curl for mre info
871 * @param nmemb pre-defined by the cURL API; see man 3 curl for mre info
872 * @param stream pre-defined by the cURL API; see man 3 curl for mre info
874 size_t CurlFillStrBuf_callback(void *ptr, size_t size, size_t nmemb, void *stream)
883 StrBufAppendBufPlain(Target, ptr, size * nmemb, 0);
890 * @brief extracts a substring from Source into dest
891 * @param dest buffer to place substring into
892 * @param Source string to copy substring from
893 * @param Offset chars to skip from start
894 * @param nChars number of chars to copy
895 * @returns the number of chars copied; may be different from nChars due to the size of Source
897 int StrBufSub(StrBuf *dest, const StrBuf *Source, unsigned long Offset, size_t nChars)
900 if (Offset > Source->BufUsed)
906 if (Offset + nChars < Source->BufUsed)
908 if (nChars >= dest->BufSize)
909 IncreaseBuf(dest, 0, nChars + 1);
910 memcpy(dest->buf, Source->buf + Offset, nChars);
911 dest->BufUsed = nChars;
912 dest->buf[dest->BufUsed] = '\0';
915 NCharsRemain = Source->BufUsed - Offset;
916 if (NCharsRemain >= dest->BufSize)
917 IncreaseBuf(dest, 0, NCharsRemain + 1);
918 memcpy(dest->buf, Source->buf + Offset, NCharsRemain);
919 dest->BufUsed = NCharsRemain;
920 dest->buf[dest->BufUsed] = '\0';
926 * @brief Cut nChars from the start of the string
927 * @param Buf Buffer to modify
928 * @param nChars how many chars should be skipped?
930 void StrBufCutLeft(StrBuf *Buf, int nChars)
932 if ((Buf == NULL) || (Buf->BufUsed == 0)) return;
933 if (nChars >= Buf->BufUsed) {
937 memmove(Buf->buf, Buf->buf + nChars, Buf->BufUsed - nChars);
938 Buf->BufUsed -= nChars;
939 Buf->buf[Buf->BufUsed] = '\0';
944 * @brief Cut the trailing n Chars from the string
945 * @param Buf Buffer to modify
946 * @param nChars how many chars should be trunkated?
948 void StrBufCutRight(StrBuf *Buf, int nChars)
950 if ((Buf == NULL) || (Buf->BufUsed == 0)) return;
951 if (nChars >= Buf->BufUsed) {
955 Buf->BufUsed -= nChars;
956 Buf->buf[Buf->BufUsed] = '\0';
961 * @brief Cut the string after n Chars
962 * @param Buf Buffer to modify
963 * @param AfternChars after how many chars should we trunkate the string?
964 * @param At if non-null and points inside of our string, cut it there.
966 void StrBufCutAt(StrBuf *Buf, int AfternChars, const char *At)
968 if ((Buf == NULL) || (Buf->BufUsed == 0)) return;
970 AfternChars = At - Buf->buf;
973 if ((AfternChars < 0) || (AfternChars >= Buf->BufUsed))
975 Buf->BufUsed = AfternChars;
976 Buf->buf[Buf->BufUsed] = '\0';
982 * @brief Strip leading and trailing spaces from a string; with premeasured and adjusted length.
983 * @param Buf the string to modify
985 void StrBufTrim(StrBuf *Buf)
988 if ((Buf == NULL) || (Buf->BufUsed == 0)) return;
990 while ((Buf->BufUsed > 0) &&
991 isspace(Buf->buf[Buf->BufUsed - 1]))
995 Buf->buf[Buf->BufUsed] = '\0';
997 if (Buf->BufUsed == 0) return;
999 while ((Buf->BufUsed > delta) && (isspace(Buf->buf[delta]))){
1002 if (delta > 0) StrBufCutLeft(Buf, delta);
1005 void StrBufStripAllBut(StrBuf *Buf, char leftboundary, char rightboundary)
1013 pLeft = pBuff = Buf->buf;
1014 while (pBuff != NULL) {
1016 pBuff = strchr(pBuff, leftboundary);
1025 pRight = strchr(pBuff, rightboundary);
1027 StrBufCutAt(Buf, 0, pRight);
1029 StrBufCutLeft(Buf, pLeft - Buf->buf);
1034 * @ingroup StrBuf_Filler
1035 * @brief uppercase the contents of a buffer
1036 * @param Buf the buffer to translate
1038 void StrBufUpCase(StrBuf *Buf)
1042 if ((Buf == NULL) || (Buf->BufUsed == 0)) return;
1045 pche = pch + Buf->BufUsed;
1046 while (pch < pche) {
1047 *pch = toupper(*pch);
1054 * @ingroup StrBuf_Filler
1055 * @brief lowercase the contents of a buffer
1056 * @param Buf the buffer to translate
1058 void StrBufLowerCase(StrBuf *Buf)
1062 if ((Buf == NULL) || (Buf->BufUsed == 0)) return;
1065 pche = pch + Buf->BufUsed;
1066 while (pch < pche) {
1067 *pch = tolower(*pch);
1073 /*******************************************************************************
1074 * a tokenizer that kills, maims, and destroys *
1075 *******************************************************************************/
1078 * @ingroup StrBuf_Tokenizer
1079 * @brief Replace a token at a given place with a given length by another token with given length
1080 * @param Buf String where to work on
1081 * @param where where inside of the Buf is the search-token
1082 * @param HowLong How long is the token to be replaced
1083 * @param Repl Token to insert at 'where'
1084 * @param ReplLen Length of repl
1085 * @returns -1 if fail else length of resulting Buf
1087 int StrBufReplaceToken(StrBuf *Buf, long where, long HowLong,
1088 const char *Repl, long ReplLen)
1091 if ((Buf == NULL) ||
1092 (where > Buf->BufUsed) ||
1093 (where + HowLong > Buf->BufUsed))
1096 if (where + ReplLen - HowLong > Buf->BufSize)
1097 if (IncreaseBuf(Buf, 1, Buf->BufUsed + ReplLen) < 0)
1100 memmove(Buf->buf + where + ReplLen,
1101 Buf->buf + where + HowLong,
1102 Buf->BufUsed - where - HowLong);
1104 memcpy(Buf->buf + where,
1107 Buf->BufUsed += ReplLen - HowLong;
1109 return Buf->BufUsed;
1113 * @ingroup StrBuf_Tokenizer
1114 * @brief Counts the numbmer of tokens in a buffer
1115 * @param source String to count tokens in
1116 * @param tok Tokenizer char to count
1117 * @returns numbers of tokenizer chars found
1119 int StrBufNum_tokens(const StrBuf *source, char tok)
1123 if ((source == NULL) || (source->BufUsed == 0))
1125 if ((source->BufUsed == 1) && (*source->buf == tok))
1129 pche = pch + source->BufUsed;
1140 * @ingroup StrBuf_Tokenizer
1141 * @brief a string tokenizer
1142 * @param Source StringBuffer to read into
1143 * @param parmnum n'th Parameter to remove
1144 * @param separator tokenizer character
1145 * @returns -1 if not found, else length of token.
1147 int StrBufRemove_token(StrBuf *Source, int parmnum, char separator)
1150 char *d, *s, *end; /* dest, source */
1153 /* Find desired @parameter */
1154 end = Source->buf + Source->BufUsed;
1156 while ((d <= end) &&
1159 /* End of string, bail! */
1164 if (*d == separator) {
1169 if ((d == NULL) || (d >= end))
1170 return 0; /* @Parameter not found */
1172 /* Find next @parameter */
1174 while ((s <= end) &&
1175 (*s && *s != separator))
1179 if (*s == separator)
1183 /* Hack and slash */
1188 memmove(d, s, Source->BufUsed - (s - Source->buf));
1189 Source->BufUsed += ReducedBy;
1190 Source->buf[Source->BufUsed] = '\0';
1192 else if (d == Source->buf) {
1194 Source->BufUsed = 0;
1198 Source->BufUsed += ReducedBy;
1211 * @ingroup StrBuf_Tokenizer
1212 * @brief a string tokenizer
1213 * @param dest Destination StringBuffer
1214 * @param Source StringBuffer to read into
1215 * @param parmnum n'th Parameter to extract
1216 * @param separator tokenizer character
1217 * @returns -1 if not found, else length of token.
1219 int StrBufExtract_token(StrBuf *dest, const StrBuf *Source, int parmnum, char separator)
1221 const char *s, *e; //* source * /
1222 int len = 0; //* running total length of extracted string * /
1223 int current_token = 0; //* token currently being processed * /
1226 dest->buf[0] = '\0';
1232 if ((Source == NULL) || (Source->BufUsed ==0)) {
1236 e = s + Source->BufUsed;
1239 //lprintf (CTDL_DEBUG, "test >: n: %d sep: %c source: %s \n willi \n", parmnum, separator, source);
1241 while ((s < e) && !IsEmptyStr(s)) {
1242 if (*s == separator) {
1245 if (len >= dest->BufSize) {
1246 dest->BufUsed = len;
1247 if (IncreaseBuf(dest, 1, -1) < 0) {
1252 if ( (current_token == parmnum) &&
1253 (*s != separator)) {
1254 dest->buf[len] = *s;
1257 else if (current_token > parmnum) {
1263 dest->buf[len] = '\0';
1264 dest->BufUsed = len;
1266 if (current_token < parmnum) {
1267 //lprintf (CTDL_DEBUG,"test <!: %s\n", dest);
1270 //lprintf (CTDL_DEBUG,"test <: %d; %s\n", len, dest);
1279 * @ingroup StrBuf_Tokenizer
1280 * @brief a string tokenizer to fetch an integer
1281 * @param Source String containing tokens
1282 * @param parmnum n'th Parameter to extract
1283 * @param separator tokenizer character
1284 * @returns 0 if not found, else integer representation of the token
1286 int StrBufExtract_int(const StrBuf* Source, int parmnum, char separator)
1296 if (StrBufExtract_token(&tmp, Source, parmnum, separator) > 0)
1303 * @ingroup StrBuf_Tokenizer
1304 * @brief a string tokenizer to fetch a long integer
1305 * @param Source String containing tokens
1306 * @param parmnum n'th Parameter to extract
1307 * @param separator tokenizer character
1308 * @returns 0 if not found, else long integer representation of the token
1310 long StrBufExtract_long(const StrBuf* Source, int parmnum, char separator)
1320 if (StrBufExtract_token(&tmp, Source, parmnum, separator) > 0)
1328 * @ingroup StrBuf_Tokenizer
1329 * @brief a string tokenizer to fetch an unsigned long
1330 * @param Source String containing tokens
1331 * @param parmnum n'th Parameter to extract
1332 * @param separator tokenizer character
1333 * @returns 0 if not found, else unsigned long representation of the token
1335 unsigned long StrBufExtract_unsigned_long(const StrBuf* Source, int parmnum, char separator)
1346 if (StrBufExtract_token(&tmp, Source, parmnum, separator) > 0) {
1350 return (unsigned long) atol(pnum);
1359 * @ingroup StrBuf_NextTokenizer
1360 * @brief a string tokenizer; Bounds checker
1361 * function to make shure whether StrBufExtract_NextToken and friends have reached the end of the string.
1362 * @param Source our tokenbuffer
1363 * @param pStart the token iterator pointer to inspect
1364 * @returns whether the revolving pointer is inside of the search range
1366 int StrBufHaveNextToken(const StrBuf *Source, const char **pStart)
1368 if ((Source == NULL) ||
1369 (*pStart == StrBufNOTNULL) ||
1370 (Source->BufUsed == 0))
1374 if (*pStart == NULL)
1378 else if (*pStart > Source->buf + Source->BufUsed)
1382 else if (*pStart <= Source->buf)
1391 * @ingroup StrBuf_NextTokenizer
1392 * @brief a string tokenizer
1393 * @param dest Destination StringBuffer
1394 * @param Source StringBuffer to read into
1395 * @param pStart pointer to the end of the last token. Feed with NULL on start.
1396 * @param separator tokenizer
1397 * @returns -1 if not found, else length of token.
1399 int StrBufExtract_NextToken(StrBuf *dest, const StrBuf *Source, const char **pStart, char separator)
1401 const char *s; /* source */
1402 const char *EndBuffer; /* end stop of source buffer */
1403 int current_token = 0; /* token currently being processed */
1404 int len = 0; /* running total length of extracted string */
1406 if ((Source == NULL) ||
1407 (Source->BufUsed == 0) )
1409 *pStart = StrBufNOTNULL;
1413 EndBuffer = Source->buf + Source->BufUsed;
1417 dest->buf[0] = '\0';
1422 *pStart = EndBuffer + 1;
1426 if (*pStart == NULL)
1428 *pStart = Source->buf; /* we're starting to examine this buffer. */
1430 else if ((*pStart < Source->buf) ||
1431 (*pStart > EndBuffer ) )
1433 return -1; /* no more tokens to find. */
1437 /* start to find the next token */
1438 while ((s <= EndBuffer) &&
1439 (current_token == 0) )
1441 if (*s == separator)
1443 /* we found the next token */
1447 if (len >= dest->BufSize)
1449 /* our Dest-buffer isn't big enough, increase it. */
1450 dest->BufUsed = len;
1452 if (IncreaseBuf(dest, 1, -1) < 0) {
1453 /* WHUT? no more mem? bail out. */
1460 if ( (current_token == 0 ) && /* are we in our target token? */
1461 (!IsEmptyStr(s) ) &&
1462 (separator != *s) ) /* don't copy the token itself */
1464 dest->buf[len] = *s; /* Copy the payload */
1465 ++len; /* remember the bigger size. */
1471 /* did we reach the end? */
1472 if ((s > EndBuffer)) {
1473 EndBuffer = StrBufNOTNULL;
1474 *pStart = EndBuffer;
1477 *pStart = s; /* remember the position for the next run */
1480 /* sanitize our extracted token */
1481 dest->buf[len] = '\0';
1482 dest->BufUsed = len;
1489 * @ingroup StrBuf_NextTokenizer
1490 * @brief a string tokenizer
1491 * @param Source StringBuffer to read from
1492 * @param pStart pointer to the end of the last token. Feed with NULL.
1493 * @param separator tokenizer character
1494 * @param nTokens number of tokens to fastforward over
1495 * @returns -1 if not found, else length of token.
1497 int StrBufSkip_NTokenS(const StrBuf *Source, const char **pStart, char separator, int nTokens)
1499 const char *s, *EndBuffer; //* source * /
1500 int len = 0; //* running total length of extracted string * /
1501 int current_token = 0; //* token currently being processed * /
1503 if ((Source == NULL) ||
1504 (Source->BufUsed ==0)) {
1508 return Source->BufUsed;
1510 if (*pStart == NULL)
1511 *pStart = Source->buf;
1513 EndBuffer = Source->buf + Source->BufUsed;
1515 if ((*pStart < Source->buf) ||
1516 (*pStart > EndBuffer)) {
1524 //lprintf (CTDL_DEBUG, "test >: n: %d sep: %c source: %s \n willi \n", parmnum, separator, source);
1526 while ((s < EndBuffer) && !IsEmptyStr(s)) {
1527 if (*s == separator) {
1530 if (current_token >= nTokens) {
1542 * @ingroup StrBuf_NextTokenizer
1543 * @brief a string tokenizer to fetch an integer
1544 * @param Source StringBuffer to read from
1545 * @param pStart Cursor on the tokenstring
1546 * @param separator tokenizer character
1547 * @returns 0 if not found, else integer representation of the token
1549 int StrBufExtractNext_int(const StrBuf* Source, const char **pStart, char separator)
1559 if (StrBufExtract_NextToken(&tmp, Source, pStart, separator) > 0)
1566 * @ingroup StrBuf_NextTokenizer
1567 * @brief a string tokenizer to fetch a long integer
1568 * @param Source StringBuffer to read from
1569 * @param pStart Cursor on the tokenstring
1570 * @param separator tokenizer character
1571 * @returns 0 if not found, else long integer representation of the token
1573 long StrBufExtractNext_long(const StrBuf* Source, const char **pStart, char separator)
1583 if (StrBufExtract_NextToken(&tmp, Source, pStart, separator) > 0)
1591 * @ingroup StrBuf_NextTokenizer
1592 * @brief a string tokenizer to fetch an unsigned long
1593 * @param Source StringBuffer to read from
1594 * @param pStart Cursor on the tokenstring
1595 * @param separator tokenizer character
1596 * @returns 0 if not found, else unsigned long representation of the token
1598 unsigned long StrBufExtractNext_unsigned_long(const StrBuf* Source, const char **pStart, char separator)
1609 if (StrBufExtract_NextToken(&tmp, Source, pStart, separator) > 0) {
1613 return (unsigned long) atol(pnum);
1623 /*******************************************************************************
1624 * Escape Appending *
1625 *******************************************************************************/
1628 * @ingroup StrBuf_DeEnCoder
1629 * @brief Escape a string for feeding out as a URL while appending it to a Buffer
1630 * @param OutBuf the output buffer
1631 * @param In Buffer to encode
1632 * @param PlainIn way in from plain old c strings
1634 void StrBufUrlescAppend(StrBuf *OutBuf, const StrBuf *In, const char *PlainIn)
1636 const char *pch, *pche;
1640 if (((In == NULL) && (PlainIn == NULL)) || (OutBuf == NULL) )
1642 if (PlainIn != NULL) {
1643 len = strlen(PlainIn);
1649 pche = pch + In->BufUsed;
1656 pt = OutBuf->buf + OutBuf->BufUsed;
1657 pte = OutBuf->buf + OutBuf->BufSize - 4; /**< we max append 3 chars at once plus the \0 */
1659 while (pch < pche) {
1661 IncreaseBuf(OutBuf, 1, -1);
1662 pte = OutBuf->buf + OutBuf->BufSize - 4; /**< we max append 3 chars at once plus the \0 */
1663 pt = OutBuf->buf + OutBuf->BufUsed;
1666 if((*pch >= 'a' && *pch <= 'z') ||
1667 (*pch >= '@' && *pch <= 'Z') || /* @ A-Z */
1668 (*pch >= '0' && *pch <= ':') || /* 0-9 : */
1669 (*pch == '!') || (*pch == '_') ||
1670 (*pch == ',') || (*pch == '.'))
1677 *(pt + 1) = HexList[(unsigned char)*pch][0];
1678 *(pt + 2) = HexList[(unsigned char)*pch][1];
1680 OutBuf->BufUsed += 3;
1688 * @ingroup StrBuf_DeEnCoder
1689 * @brief append a string in hex encoding to the buffer
1690 * @param OutBuf the output buffer
1691 * @param In Buffer to encode
1692 * @param PlainIn way in from plain old c strings
1694 void StrBufHexescAppend(StrBuf *OutBuf, const StrBuf *In, const char *PlainIn)
1696 const char *pch, *pche;
1700 if (((In == NULL) && (PlainIn == NULL)) || (OutBuf == NULL) )
1702 if (PlainIn != NULL) {
1703 len = strlen(PlainIn);
1709 pche = pch + In->BufUsed;
1716 pt = OutBuf->buf + OutBuf->BufUsed;
1717 pte = OutBuf->buf + OutBuf->BufSize - 3; /**< we max append 3 chars at once plus the \0 */
1719 while (pch < pche) {
1721 IncreaseBuf(OutBuf, 1, -1);
1722 pte = OutBuf->buf + OutBuf->BufSize - 3; /**< we max append 3 chars at once plus the \0 */
1723 pt = OutBuf->buf + OutBuf->BufUsed;
1726 *pt = HexList[(unsigned char)*pch][0];
1728 *pt = HexList[(unsigned char)*pch][1];
1729 pt ++; pch ++; OutBuf->BufUsed += 2;
1735 * @ingroup StrBuf_DeEnCoder
1736 * @brief Append a string, escaping characters which have meaning in HTML.
1738 * @param Target target buffer
1739 * @param Source source buffer; set to NULL if you just have a C-String
1740 * @param PlainIn Plain-C string to append; set to NULL if unused
1741 * @param nbsp If nonzero, spaces are converted to non-breaking spaces.
1742 * @param nolinebreaks if set to 1, linebreaks are removed from the string.
1743 * if set to 2, linebreaks are replaced by <br/>
1745 long StrEscAppend(StrBuf *Target, const StrBuf *Source, const char *PlainIn, int nbsp, int nolinebreaks)
1747 const char *aptr, *eiptr;
1751 if (((Source == NULL) && (PlainIn == NULL)) || (Target == NULL) )
1754 if (PlainIn != NULL) {
1756 len = strlen(PlainIn);
1761 eiptr = aptr + Source->BufUsed;
1762 len = Source->BufUsed;
1768 bptr = Target->buf + Target->BufUsed;
1769 eptr = Target->buf + Target->BufSize - 11; /* our biggest unit to put in... */
1771 while (aptr < eiptr){
1773 IncreaseBuf(Target, 1, -1);
1774 eptr = Target->buf + Target->BufSize - 11; /* our biggest unit to put in... */
1775 bptr = Target->buf + Target->BufUsed;
1778 memcpy(bptr, "<", 4);
1780 Target->BufUsed += 4;
1782 else if (*aptr == '>') {
1783 memcpy(bptr, ">", 4);
1785 Target->BufUsed += 4;
1787 else if (*aptr == '&') {
1788 memcpy(bptr, "&", 5);
1790 Target->BufUsed += 5;
1792 else if (*aptr == '"') {
1793 memcpy(bptr, """, 6);
1795 Target->BufUsed += 6;
1797 else if (*aptr == '\'') {
1798 memcpy(bptr, "'", 5);
1800 Target->BufUsed += 5;
1802 else if (*aptr == LB) {
1807 else if (*aptr == RB) {
1812 else if (*aptr == QU) {
1817 else if ((*aptr == 32) && (nbsp == 1)) {
1818 memcpy(bptr, " ", 6);
1820 Target->BufUsed += 6;
1822 else if ((*aptr == '\n') && (nolinebreaks == 1)) {
1823 *bptr='\0'; /* nothing */
1825 else if ((*aptr == '\n') && (nolinebreaks == 2)) {
1826 memcpy(bptr, "<br/>", 11);
1828 Target->BufUsed += 11;
1832 else if ((*aptr == '\r') && (nolinebreaks != 0)) {
1833 *bptr='\0'; /* nothing */
1843 if ((bptr = eptr - 1 ) && !IsEmptyStr(aptr) )
1845 return Target->BufUsed;
1849 * @ingroup StrBuf_DeEnCoder
1850 * @brief Append a string, escaping characters which have meaning in HTML.
1851 * Converts linebreaks into blanks; escapes single quotes
1852 * @param Target target buffer
1853 * @param Source source buffer; set to NULL if you just have a C-String
1854 * @param PlainIn Plain-C string to append; set to NULL if unused
1856 void StrMsgEscAppend(StrBuf *Target, const StrBuf *Source, const char *PlainIn)
1858 const char *aptr, *eiptr;
1862 if (((Source == NULL) && (PlainIn == NULL)) || (Target == NULL) )
1865 if (PlainIn != NULL) {
1867 len = strlen(PlainIn);
1872 eiptr = aptr + Source->BufUsed;
1873 len = Source->BufUsed;
1879 eptr = Target->buf + Target->BufSize - 8;
1880 tptr = Target->buf + Target->BufUsed;
1882 while (aptr < eiptr){
1884 IncreaseBuf(Target, 1, -1);
1885 eptr = Target->buf + Target->BufSize - 8;
1886 tptr = Target->buf + Target->BufUsed;
1889 if (*aptr == '\n') {
1893 else if (*aptr == '\r') {
1897 else if (*aptr == '\'') {
1903 Target->BufUsed += 5;
1916 * @ingroup StrBuf_DeEnCoder
1917 * @brief Append a string, escaping characters which have meaning in ICAL.
1919 * @param Target target buffer
1920 * @param Source source buffer; set to NULL if you just have a C-String
1921 * @param PlainIn Plain-C string to append; set to NULL if unused
1923 void StrIcalEscAppend(StrBuf *Target, const StrBuf *Source, const char *PlainIn)
1925 const char *aptr, *eiptr;
1929 if (((Source == NULL) && (PlainIn == NULL)) || (Target == NULL) )
1932 if (PlainIn != NULL) {
1934 len = strlen(PlainIn);
1939 eiptr = aptr + Source->BufUsed;
1940 len = Source->BufUsed;
1946 eptr = Target->buf + Target->BufSize - 8;
1947 tptr = Target->buf + Target->BufUsed;
1949 while (aptr < eiptr){
1950 if(tptr + 3 >= eptr) {
1951 IncreaseBuf(Target, 1, -1);
1952 eptr = Target->buf + Target->BufSize - 8;
1953 tptr = Target->buf + Target->BufUsed;
1956 if (*aptr == '\n') {
1963 else if (*aptr == '\r') {
1970 else if (*aptr == ',') {
1986 * @ingroup StrBuf_DeEnCoder
1987 * @brief Append a string, escaping characters which have meaning in JavaScript strings .
1989 * @param Target target buffer
1990 * @param Source source buffer; set to NULL if you just have a C-String
1991 * @param PlainIn Plain-C string to append; set to NULL if unused
1992 * @returns size of result or -1
1994 long StrECMAEscAppend(StrBuf *Target, const StrBuf *Source, const char *PlainIn)
1996 const char *aptr, *eiptr;
2000 if (((Source == NULL) && (PlainIn == NULL)) || (Target == NULL) )
2003 if (PlainIn != NULL) {
2005 len = strlen(PlainIn);
2010 eiptr = aptr + Source->BufUsed;
2011 len = Source->BufUsed;
2017 bptr = Target->buf + Target->BufUsed;
2018 eptr = Target->buf + Target->BufSize - 3; /* our biggest unit to put in... */
2020 while (aptr < eiptr){
2022 IncreaseBuf(Target, 1, -1);
2023 eptr = Target->buf + Target->BufSize - 3;
2024 bptr = Target->buf + Target->BufUsed;
2031 Target->BufUsed += 2;
2032 } else if (*aptr == '\\') {
2037 Target->BufUsed += 2;
2047 if ((bptr == eptr - 1 ) && !IsEmptyStr(aptr) )
2049 return Target->BufUsed;
2053 * @ingroup StrBuf_DeEnCoder
2054 * @brief Append a string, escaping characters which have meaning in HTML + json.
2056 * @param Target target buffer
2057 * @param Source source buffer; set to NULL if you just have a C-String
2058 * @param PlainIn Plain-C string to append; set to NULL if unused
2059 * @param nbsp If nonzero, spaces are converted to non-breaking spaces.
2060 * @param nolinebreaks if set to 1, linebreaks are removed from the string.
2061 * if set to 2, linebreaks are replaced by <br/>
2063 long StrHtmlEcmaEscAppend(StrBuf *Target, const StrBuf *Source, const char *PlainIn, int nbsp, int nolinebreaks)
2065 const char *aptr, *eiptr;
2068 int IsUtf8Sequence = 0;
2070 if (((Source == NULL) && (PlainIn == NULL)) || (Target == NULL) )
2073 if (PlainIn != NULL) {
2075 len = strlen(PlainIn);
2080 eiptr = aptr + Source->BufUsed;
2081 len = Source->BufUsed;
2087 bptr = Target->buf + Target->BufUsed;
2088 eptr = Target->buf + Target->BufSize - 11; /* our biggest unit to put in... */
2090 while (aptr < eiptr){
2092 IncreaseBuf(Target, 1, -1);
2093 eptr = Target->buf + Target->BufSize - 11; /* our biggest unit to put in... */
2094 bptr = Target->buf + Target->BufUsed;
2097 memcpy(bptr, "<", 4);
2099 Target->BufUsed += 4;
2101 else if (*aptr == '>') {
2102 memcpy(bptr, ">", 4);
2104 Target->BufUsed += 4;
2106 else if (*aptr == '&') {
2107 memcpy(bptr, "&", 5);
2109 Target->BufUsed += 5;
2111 else if (*aptr == LB) {
2116 else if (*aptr == RB) {
2121 else if ((*aptr == 32) && (nbsp == 1)) {
2122 memcpy(bptr, " ", 6);
2124 Target->BufUsed += 6;
2126 else if ((*aptr == '\n') && (nolinebreaks == 1)) {
2127 *bptr='\0'; /* nothing */
2129 else if ((*aptr == '\n') && (nolinebreaks == 2)) {
2130 memcpy(bptr, "<br/>", 11);
2132 Target->BufUsed += 11;
2135 else if ((*aptr == '\r') && (nolinebreaks != 0)) {
2136 *bptr='\0'; /* nothing */
2139 else if ((*aptr == '"') || (*aptr == QU)) {
2144 Target->BufUsed += 2;
2145 } else if (*aptr == '\\') {
2150 Target->BufUsed += 2;
2153 if (((unsigned char)*aptr) >= 0x20)
2155 IsUtf8Sequence = Ctdl_GetUtf8SequenceLength(aptr, eiptr);
2159 while (IsUtf8Sequence > 1){
2160 if(bptr + IsUtf8Sequence >= eptr) {
2161 IncreaseBuf(Target, 1, -1);
2162 eptr = Target->buf + Target->BufSize - 11; /* our biggest unit to put in... */
2163 bptr = Target->buf + Target->BufUsed - 1;
2177 if ((bptr = eptr - 1 ) && !IsEmptyStr(aptr) )
2179 return Target->BufUsed;
2183 * @ingroup StrBuf_DeEnCoder
2184 * @brief unhide special chars hidden to the HTML escaper
2185 * @param target buffer to put the unescaped string in
2186 * @param source buffer to unescape
2188 void StrBufEUid_unescapize(StrBuf *target, const StrBuf *source)
2194 FlushStrBuf(target);
2196 if (source == NULL ||target == NULL)
2201 len = source->BufUsed;
2202 for (a = 0; a < len; ++a) {
2203 if (target->BufUsed >= target->BufSize)
2204 IncreaseBuf(target, 1, -1);
2206 if (source->buf[a] == '=') {
2207 hex[0] = source->buf[a + 1];
2208 hex[1] = source->buf[a + 2];
2211 sscanf(hex, "%02x", &b);
2212 target->buf[target->BufUsed] = b;
2213 target->buf[++target->BufUsed] = 0;
2217 target->buf[target->BufUsed] = source->buf[a];
2218 target->buf[++target->BufUsed] = 0;
2225 * @ingroup StrBuf_DeEnCoder
2226 * @brief hide special chars from the HTML escapers and friends
2227 * @param target buffer to put the escaped string in
2228 * @param source buffer to escape
2230 void StrBufEUid_escapize(StrBuf *target, const StrBuf *source)
2235 FlushStrBuf(target);
2237 if (source == NULL ||target == NULL)
2242 len = source->BufUsed;
2243 for (i=0; i<len; ++i) {
2244 if (target->BufUsed + 4 >= target->BufSize)
2245 IncreaseBuf(target, 1, -1);
2246 if ( (isalnum(source->buf[i])) ||
2247 (source->buf[i]=='-') ||
2248 (source->buf[i]=='_') ) {
2249 target->buf[target->BufUsed++] = source->buf[i];
2252 sprintf(&target->buf[target->BufUsed],
2254 (0xFF &source->buf[i]));
2255 target->BufUsed += 3;
2258 target->buf[target->BufUsed + 1] = '\0';
2262 /*******************************************************************************
2263 * Quoted Printable de/encoding *
2264 *******************************************************************************/
2267 * @ingroup StrBuf_DeEnCoder
2268 * @brief decode a buffer from base 64 encoding; destroys original
2269 * @param Buf Buffor to transform
2271 int StrBufDecodeBase64(StrBuf *Buf)
2275 if (Buf == NULL) return -1;
2277 xferbuf = (char*) malloc(Buf->BufSize);
2279 siz = CtdlDecodeBase64(xferbuf,
2289 * @ingroup StrBuf_DeEnCoder
2290 * @brief decode a buffer from base 64 encoding; destroys original
2291 * @param Buf Buffor to transform
2293 int StrBufDecodeHex(StrBuf *Buf)
2296 char *pch, *pche, *pchi;
2298 if (Buf == NULL) return -1;
2300 pch = pchi = Buf->buf;
2301 pche = pch + Buf->BufUsed;
2303 while (pchi < pche){
2304 ch = decode_hex(pchi);
2311 Buf->BufUsed = pch - Buf->buf;
2312 return Buf->BufUsed;
2316 * @ingroup StrBuf_DeEnCoder
2317 * @brief replace all chars >0x20 && < 0x7F with Mute
2318 * @param Mute char to put over invalid chars
2319 * @param Buf Buffor to transform
2321 int StrBufSanitizeAscii(StrBuf *Buf, const char Mute)
2325 if (Buf == NULL) return -1;
2326 pch = (unsigned char *)Buf->buf;
2327 while (pch < (unsigned char *)Buf->buf + Buf->BufUsed) {
2328 if ((*pch < 0x20) || (*pch > 0x7F))
2332 return Buf->BufUsed;
2337 * @ingroup StrBuf_DeEnCoder
2338 * @brief remove escaped strings from i.e. the url string (like %20 for blanks)
2339 * @param Buf Buffer to translate
2340 * @param StripBlanks Reduce several blanks to one?
2342 long StrBufUnescape(StrBuf *Buf, int StripBlanks)
2351 while ((Buf->BufUsed > 0) && (isspace(Buf->buf[Buf->BufUsed - 1]))){
2352 Buf->buf[Buf->BufUsed - 1] = '\0';
2357 while (a < Buf->BufUsed) {
2358 if (Buf->buf[a] == '+')
2360 else if (Buf->buf[a] == '%') {
2361 /* don't let % chars through, rather truncate the input. */
2362 if (a + 2 > Buf->BufUsed) {
2367 hex[0] = Buf->buf[a + 1];
2368 hex[1] = Buf->buf[a + 2];
2371 sscanf(hex, "%02x", &b);
2372 Buf->buf[a] = (char) b;
2373 len = Buf->BufUsed - a - 2;
2375 memmove(&Buf->buf[a + 1], &Buf->buf[a + 3], len);
2387 * @ingroup StrBuf_DeEnCoder
2388 * @brief RFC2047-encode a header field if necessary.
2389 * If no non-ASCII characters are found, the string
2390 * will be copied verbatim without encoding.
2392 * @param target Target buffer.
2393 * @param source Source string to be encoded.
2394 * @returns encoded length; -1 if non success.
2396 int StrBufRFC2047encode(StrBuf **target, const StrBuf *source)
2398 const char headerStr[] = "=?UTF-8?Q?";
2399 int need_to_encode = 0;
2403 if ((source == NULL) ||
2407 while ((i < source->BufUsed) &&
2408 (!IsEmptyStr (&source->buf[i])) &&
2409 (need_to_encode == 0)) {
2410 if (((unsigned char) source->buf[i] < 32) ||
2411 ((unsigned char) source->buf[i] > 126)) {
2417 if (!need_to_encode) {
2418 if (*target == NULL) {
2419 *target = NewStrBufPlain(source->buf, source->BufUsed);
2422 FlushStrBuf(*target);
2423 StrBufAppendBuf(*target, source, 0);
2425 return (*target)->BufUsed;
2427 if (*target == NULL)
2428 *target = NewStrBufPlain(NULL, sizeof(headerStr) + source->BufUsed * 2);
2429 else if (sizeof(headerStr) + source->BufUsed >= (*target)->BufSize)
2430 IncreaseBuf(*target, sizeof(headerStr) + source->BufUsed, 0);
2431 memcpy ((*target)->buf, headerStr, sizeof(headerStr) - 1);
2432 (*target)->BufUsed = sizeof(headerStr) - 1;
2433 for (i=0; (i < source->BufUsed); ++i) {
2434 if ((*target)->BufUsed + 4 >= (*target)->BufSize)
2435 IncreaseBuf(*target, 1, 0);
2436 ch = (unsigned char) source->buf[i];
2437 if ((ch < 32) || (ch > 126) || (ch == 61)) {
2438 sprintf(&(*target)->buf[(*target)->BufUsed], "=%02X", ch);
2439 (*target)->BufUsed += 3;
2442 (*target)->buf[(*target)->BufUsed] = ch;
2443 (*target)->BufUsed++;
2447 if ((*target)->BufUsed + 4 >= (*target)->BufSize)
2448 IncreaseBuf(*target, 1, 0);
2450 (*target)->buf[(*target)->BufUsed++] = '?';
2451 (*target)->buf[(*target)->BufUsed++] = '=';
2452 (*target)->buf[(*target)->BufUsed] = '\0';
2453 return (*target)->BufUsed;;
2458 static void AddRecipient(StrBuf *Target,
2460 StrBuf *EmailAddress,
2465 if (StrLength(Target) > 0) StrBufAppendBufPlain(Target, HKEY(", "), 0);
2466 if (strchr(ChrPtr(UserName), ',') != NULL) QuoteMe = 1;
2468 if (QuoteMe) StrBufAppendBufPlain(Target, HKEY("\""), 0);
2469 StrBufRFC2047encode(&EncBuf, UserName);
2470 StrBufAppendBuf(Target, EncBuf, 0);
2471 if (QuoteMe) StrBufAppendBufPlain(Target, HKEY("\" "), 0);
2472 else StrBufAppendBufPlain(Target, HKEY(" "), 0);
2474 if (StrLength(EmailAddress) > 0){
2475 StrBufAppendBufPlain(Target, HKEY("<"), 0);
2476 StrBufAppendBuf(Target, EmailAddress, 0); /* TODO: what about IDN???? */
2477 StrBufAppendBufPlain(Target, HKEY(">"), 0);
2483 * \brief QP encode parts of an email TO/CC/BCC vector, and strip/filter invalid parts
2484 * \param Recp Source list of email recipients
2485 * \param UserName Temporary buffer for internal use; Please provide valid buffer.
2486 * \param EmailAddress Temporary buffer for internal use; Please provide valid buffer.
2487 * \param EncBuf Temporary buffer for internal use; Please provide valid buffer.
2488 * \returns encoded & sanitized buffer with the contents of Recp; Caller owns this memory.
2490 StrBuf *StrBufSanitizeEmailRecipientVector(const StrBuf *Recp,
2492 StrBuf *EmailAddress,
2498 const char *pch, *pche;
2499 const char *UserStart, *UserEnd, *EmailStart, *EmailEnd, *At;
2501 if ((Recp == NULL) || (StrLength(Recp) == 0))
2506 pche = pch + StrLength(Recp);
2508 if (!CheckEncode(pch, -1, pche))
2509 return NewStrBufDup(Recp);
2511 Target = NewStrBufPlain(NULL, StrLength(Recp));
2513 while ((pch != NULL) && (pch < pche))
2517 while (isspace(*pch)) pch++;
2518 UserStart = UserEnd = EmailStart = EmailEnd = NULL;
2520 if ((*pch == '"') || (*pch == '\'')) {
2521 UserStart = pch + 1;
2523 UserEnd = strchr(UserStart, *pch);
2524 if (UserEnd == NULL)
2525 break; ///TODO: Userfeedback??
2526 EmailStart = UserEnd + 1;
2527 while (isspace(*EmailStart))
2529 if (UserEnd == UserStart) {
2530 UserStart = UserEnd = NULL;
2533 if (*EmailStart == '<') {
2535 EmailEnd = strchr(EmailStart, '>');
2536 if (EmailEnd == NULL)
2537 EmailEnd = strchr(EmailStart, ',');
2541 EmailEnd = strchr(EmailStart, ',');
2543 if (EmailEnd == NULL)
2551 EmailEnd = strchr(UserStart, ',');
2552 if (EmailEnd == NULL) {
2553 EmailEnd = strchr(pch, '>');
2555 if (EmailEnd != NULL) {
2565 while ((EmailEnd > UserStart) && !gt &&
2566 ((*EmailEnd == ',') ||
2567 (*EmailEnd == '>') ||
2568 (isspace(*EmailEnd))))
2570 if (*EmailEnd == '>')
2575 if (EmailEnd == UserStart)
2579 EmailStart = strchr(UserStart, '<');
2580 if ((EmailStart == NULL) || (EmailStart > EmailEnd))
2582 UserEnd = EmailStart;
2584 while ((UserEnd > UserStart) &&
2585 isspace (*(UserEnd - 1)))
2588 if (UserStart >= UserEnd)
2589 UserStart = UserEnd = NULL;
2590 At = strchr(EmailStart, '@');
2592 else { /* this is a local recipient... no domain, just a realname */
2593 EmailStart = UserStart;
2594 At = strchr(EmailStart, '@');
2600 EmailStart = UserStart;
2606 if ((UserStart != NULL) && (UserEnd != NULL))
2607 StrBufPlain(UserName, UserStart, UserEnd - UserStart);
2608 else if ((UserStart != NULL) && (UserEnd == NULL))
2609 StrBufPlain(UserName, UserStart, UserEnd - UserStart);
2611 FlushStrBuf(UserName);
2613 if ((EmailStart != NULL) && (EmailEnd != NULL))
2614 StrBufPlain(EmailAddress, EmailStart, EmailEnd - EmailStart);
2615 else if ((EmailStart != NULL) && (EmailEnd == NULL))
2616 StrBufPlain(EmailAddress, EmailStart, EmailEnd - pche);
2618 FlushStrBuf(EmailAddress);
2620 AddRecipient(Target, UserName, EmailAddress, EncBuf);
2625 if ((pch != NULL) && (*pch == ','))
2627 if (pch != NULL) while (isspace(*pch))
2636 * @brief replaces all occurances of 'search' by 'replace'
2637 * @param buf Buffer to modify
2638 * @param search character to search
2639 * @param replace character to replace search by
2641 void StrBufReplaceChars(StrBuf *buf, char search, char replace)
2646 for (i=0; i<buf->BufUsed; i++)
2647 if (buf->buf[i] == search)
2648 buf->buf[i] = replace;
2654 * @brief removes all \r s from the string, or replaces them with \n if its not a combination of both.
2655 * @param buf Buffer to modify
2657 void StrBufToUnixLF(StrBuf *buf)
2659 char *pche, *pchS, *pchT;
2663 pche = buf->buf + buf->BufUsed;
2664 pchS = pchT = buf->buf;
2670 if (*pchS != '\n') {
2679 buf->BufUsed = pchT - buf->buf;
2683 /*******************************************************************************
2684 * Iconv Wrapper; RFC822 de/encoding *
2685 *******************************************************************************/
2688 * @ingroup StrBuf_DeEnCoder
2689 * @brief Wrapper around iconv_open()
2690 * Our version adds aliases for non-standard Microsoft charsets
2691 * such as 'MS950', aliasing them to names like 'CP950'
2693 * @param tocode Target encoding
2694 * @param fromcode Source encoding
2695 * @param pic anonimized pointer to iconv struct
2697 void ctdl_iconv_open(const char *tocode, const char *fromcode, void *pic)
2700 iconv_t ic = (iconv_t)(-1) ;
2701 ic = iconv_open(tocode, fromcode);
2702 if (ic == (iconv_t)(-1) ) {
2703 char alias_fromcode[64];
2704 if ( (strlen(fromcode) == 5) && (!strncasecmp(fromcode, "MS", 2)) ) {
2705 safestrncpy(alias_fromcode, fromcode, sizeof alias_fromcode);
2706 alias_fromcode[0] = 'C';
2707 alias_fromcode[1] = 'P';
2708 ic = iconv_open(tocode, alias_fromcode);
2711 *(iconv_t *)pic = ic;
2717 * @ingroup StrBuf_DeEnCoder
2718 * @brief find one chunk of a RFC822 encoded string
2719 * @param Buffer where to search
2720 * @param bptr where to start searching
2721 * @returns found position, NULL if none.
2723 static inline const char *FindNextEnd (const StrBuf *Buf, const char *bptr)
2726 /* Find the next ?Q? */
2727 if (Buf->BufUsed - (bptr - Buf->buf) < 6)
2730 end = strchr(bptr + 2, '?');
2735 if ((Buf->BufUsed - (end - Buf->buf) > 3) &&
2736 ((*(end + 1) == 'B') || (*(end + 1) == 'Q')) &&
2737 (*(end + 2) == '?')) {
2738 /* skip on to the end of the cluster, the next ?= */
2739 end = strstr(end + 3, "?=");
2742 /* sort of half valid encoding, try to find an end. */
2743 end = strstr(bptr, "?=");
2749 * @brief swaps the contents of two StrBufs
2750 * this is to be used to have cheap switched between a work-buffer and a target buffer
2751 * @param A First one
2752 * @param B second one
2754 static inline void SwapBuffers(StrBuf *A, StrBuf *B)
2758 memcpy(&C, A, sizeof(*A));
2759 memcpy(A, B, sizeof(*B));
2760 memcpy(B, &C, sizeof(C));
2766 * @ingroup StrBuf_DeEnCoder
2767 * @brief convert one buffer according to the preselected iconv pointer PIC
2768 * @param ConvertBuf buffer we need to translate
2769 * @param TmpBuf To share a workbuffer over several iterations. prepare to have it filled with useless stuff afterwards.
2770 * @param pic Pointer to the iconv-session Object
2772 void StrBufConvert(StrBuf *ConvertBuf, StrBuf *TmpBuf, void *pic)
2778 char *ibuf; /**< Buffer of characters to be converted */
2779 char *obuf; /**< Buffer for converted characters */
2780 size_t ibuflen; /**< Length of input buffer */
2781 size_t obuflen; /**< Length of output buffer */
2784 /* since we're converting to utf-8, one glyph may take up to 6 bytes */
2785 if (ConvertBuf->BufUsed * 6 >= TmpBuf->BufSize)
2786 IncreaseBuf(TmpBuf, 0, ConvertBuf->BufUsed * 6);
2788 ic = *(iconv_t*)pic;
2789 ibuf = ConvertBuf->buf;
2790 ibuflen = ConvertBuf->BufUsed;
2792 obuflen = TmpBuf->BufSize;
2794 siz = iconv(ic, &ibuf, &ibuflen, &obuf, &obuflen);
2797 if (errno == E2BIG) {
2799 IncreaseBuf(TmpBuf, 0, 0);
2804 else if (errno == EILSEQ){
2805 /* hm, invalid utf8 sequence... what to do now? */
2806 /* An invalid multibyte sequence has been encountered in the input */
2808 else if (errno == EINVAL) {
2809 /* An incomplete multibyte sequence has been encountered in the input. */
2812 FlushStrBuf(TmpBuf);
2815 TmpBuf->BufUsed = TmpBuf->BufSize - obuflen;
2816 TmpBuf->buf[TmpBuf->BufUsed] = '\0';
2818 /* little card game: wheres the red lady? */
2819 SwapBuffers(ConvertBuf, TmpBuf);
2820 FlushStrBuf(TmpBuf);
2827 * @ingroup StrBuf_DeEnCoder
2828 * @brief catches one RFC822 encoded segment, and decodes it.
2829 * @param Target buffer to fill with result
2830 * @param DecodeMe buffer with stuff to process
2831 * @param SegmentStart points to our current segment in DecodeMe
2832 * @param SegmentEnd Points to the end of our current segment in DecodeMe
2833 * @param ConvertBuf Workbuffer shared between several iterations. Random content; needs to be valid
2834 * @param ConvertBuf2 Workbuffer shared between several iterations. Random content; needs to be valid
2835 * @param FoundCharset Characterset to default decoding to; if we find another we will overwrite it.
2837 inline static void DecodeSegment(StrBuf *Target,
2838 const StrBuf *DecodeMe,
2839 const char *SegmentStart,
2840 const char *SegmentEnd,
2842 StrBuf *ConvertBuf2,
2843 StrBuf *FoundCharset)
2849 iconv_t ic = (iconv_t)(-1);
2853 /* Now we handle foreign character sets properly encoded
2854 * in RFC2047 format.
2856 StaticBuf.buf = (char*) SegmentStart; /*< it will just be read there... */
2857 StaticBuf.BufUsed = SegmentEnd - SegmentStart;
2858 StaticBuf.BufSize = DecodeMe->BufSize - (SegmentStart - DecodeMe->buf);
2859 extract_token(charset, SegmentStart, 1, '?', sizeof charset);
2860 if (FoundCharset != NULL) {
2861 FlushStrBuf(FoundCharset);
2862 StrBufAppendBufPlain(FoundCharset, charset, -1, 0);
2864 extract_token(encoding, SegmentStart, 2, '?', sizeof encoding);
2865 StrBufExtract_token(ConvertBuf, &StaticBuf, 3, '?');
2867 *encoding = toupper(*encoding);
2868 if (*encoding == 'B') { /**< base64 */
2869 if (ConvertBuf2->BufSize < ConvertBuf->BufUsed)
2870 IncreaseBuf(ConvertBuf2, 0, ConvertBuf->BufUsed);
2871 ConvertBuf2->BufUsed = CtdlDecodeBase64(ConvertBuf2->buf,
2873 ConvertBuf->BufUsed);
2875 else if (*encoding == 'Q') { /**< quoted-printable */
2879 while (pos < ConvertBuf->BufUsed)
2881 if (ConvertBuf->buf[pos] == '_')
2882 ConvertBuf->buf[pos] = ' ';
2886 if (ConvertBuf2->BufSize < ConvertBuf->BufUsed)
2887 IncreaseBuf(ConvertBuf2, 0, ConvertBuf->BufUsed);
2889 ConvertBuf2->BufUsed = CtdlDecodeQuotedPrintable(
2892 ConvertBuf->BufUsed);
2895 StrBufAppendBuf(ConvertBuf2, ConvertBuf, 0);
2898 ctdl_iconv_open("UTF-8", charset, &ic);
2899 if (ic != (iconv_t)(-1) ) {
2901 StrBufConvert(ConvertBuf2, ConvertBuf, &ic);
2902 StrBufAppendBuf(Target, ConvertBuf2, 0);
2907 StrBufAppendBufPlain(Target, HKEY("(unreadable)"), 0);
2913 * @ingroup StrBuf_DeEnCoder
2914 * @brief Handle subjects with RFC2047 encoding such as:
2915 * =?koi8-r?B?78bP0s3Mxc7JxSDXz9rE1dvO2c3JINvB0sHNySDP?=
2916 * @param Target where to put the decoded string to
2917 * @param DecodeMe buffer with encoded string
2918 * @param DefaultCharset if we don't find one, which should we use?
2919 * @param FoundCharset overrides DefaultCharset if non-empty; If we find a charset inside of the string,
2920 * put it here for later use where no string might be known.
2922 void StrBuf_RFC822_to_Utf8(StrBuf *Target, const StrBuf *DecodeMe, const StrBuf* DefaultCharset, StrBuf *FoundCharset)
2924 StrBuf *DecodedInvalidBuf = NULL;
2925 StrBuf *ConvertBuf, *ConvertBuf2;
2926 const StrBuf *DecodeMee = DecodeMe;
2927 const char *start, *end, *next, *nextend, *ptr = NULL;
2929 iconv_t ic = (iconv_t)(-1) ;
2934 int illegal_non_rfc2047_encoding = 0;
2936 /* Sometimes, badly formed messages contain strings which were simply
2937 * written out directly in some foreign character set instead of
2938 * using RFC2047 encoding. This is illegal but we will attempt to
2939 * handle it anyway by converting from a user-specified default
2940 * charset to UTF-8 if we see any nonprintable characters.
2943 len = StrLength(DecodeMe);
2944 for (i=0; i<DecodeMe->BufUsed; ++i) {
2945 if ((DecodeMe->buf[i] < 32) || (DecodeMe->buf[i] > 126)) {
2946 illegal_non_rfc2047_encoding = 1;
2951 ConvertBuf = NewStrBufPlain(NULL, StrLength(DecodeMe));
2952 if ((illegal_non_rfc2047_encoding) &&
2953 (strcasecmp(ChrPtr(DefaultCharset), "UTF-8")) &&
2954 (strcasecmp(ChrPtr(DefaultCharset), "us-ascii")) )
2957 ctdl_iconv_open("UTF-8", ChrPtr(DefaultCharset), &ic);
2958 if (ic != (iconv_t)(-1) ) {
2959 DecodedInvalidBuf = NewStrBufDup(DecodeMe);
2960 StrBufConvert(DecodedInvalidBuf, ConvertBuf, &ic);///TODO: don't void const?
2961 DecodeMee = DecodedInvalidBuf;
2967 /* pre evaluate the first pair */
2968 nextend = end = NULL;
2969 len = StrLength(DecodeMee);
2970 start = strstr(DecodeMee->buf, "=?");
2971 eptr = DecodeMee->buf + DecodeMee->BufUsed;
2973 end = FindNextEnd (DecodeMee, start);
2975 StrBufAppendBuf(Target, DecodeMee, 0);
2976 FreeStrBuf(&ConvertBuf);
2977 FreeStrBuf(&DecodedInvalidBuf);
2981 ConvertBuf2 = NewStrBufPlain(NULL, StrLength(DecodeMee));
2983 if (start != DecodeMee->buf) {
2986 nFront = start - DecodeMee->buf;
2987 StrBufAppendBufPlain(Target, DecodeMee->buf, nFront, 0);
2991 * Since spammers will go to all sorts of absurd lengths to get their
2992 * messages through, there are LOTS of corrupt headers out there.
2993 * So, prevent a really badly formed RFC2047 header from throwing
2994 * this function into an infinite loop.
2996 while ((start != NULL) &&
3003 DecodeSegment(Target,
3011 next = strstr(end, "=?");
3013 if ((next != NULL) &&
3015 nextend = FindNextEnd(DecodeMee, next);
3016 if (nextend == NULL)
3019 /* did we find two partitions */
3020 if ((next != NULL) &&
3024 while ((ptr < next) &&
3031 * did we find a gab just filled with blanks?
3032 * if not, copy its stuff over.
3036 StrBufAppendBufPlain(Target,
3042 /* our next-pair is our new first pair now. */
3048 nextend = DecodeMee->buf + DecodeMee->BufUsed;
3049 if ((end != NULL) && (end < nextend)) {
3051 while ( (ptr < nextend) &&
3058 StrBufAppendBufPlain(Target, end, nextend - end, 0);
3060 FreeStrBuf(&ConvertBuf);
3061 FreeStrBuf(&ConvertBuf2);
3062 FreeStrBuf(&DecodedInvalidBuf);
3065 /*******************************************************************************
3066 * Manipulating UTF-8 Strings *
3067 *******************************************************************************/
3071 * @brief evaluate the length of an utf8 special character sequence
3072 * @param Char the character to examine
3073 * @returns width of utf8 chars in bytes
3075 static inline int Ctdl_GetUtf8SequenceLength(const char *CharS, const char *CharE)
3080 while ((n < 8) && ((test & *CharS) != 0)) {
3084 if ((n > 6) || ((CharE - CharS) < n))
3091 * @brief detect whether this char starts an utf-8 encoded char
3092 * @param Char character to inspect
3093 * @returns yes or no
3095 static inline int Ctdl_IsUtf8SequenceStart(const char Char)
3097 /** 11??.???? indicates an UTF8 Sequence. */
3098 return ((Char & 0xC0) != 0);
3103 * @brief measure the number of glyphs in an UTF8 string...
3104 * @param Buf string to measure
3105 * @returns the number of glyphs in Buf
3107 long StrBuf_Utf8StrLen(StrBuf *Buf)
3113 if ((Buf == NULL) || (Buf->BufUsed == 0))
3116 eptr = Buf->buf + Buf->BufUsed;
3117 while ((aptr < eptr) && (*aptr != '\0')) {
3118 if (Ctdl_IsUtf8SequenceStart(*aptr)){
3119 m = Ctdl_GetUtf8SequenceLength(aptr, eptr);
3120 while ((aptr < eptr) && (*aptr++ != '\0')&& (m-- > 0) );
3133 * @brief cuts a string after maxlen glyphs
3134 * @param Buf string to cut to maxlen glyphs
3135 * @param maxlen how long may the string become?
3136 * @returns current length of the string
3138 long StrBuf_Utf8StrCut(StrBuf *Buf, int maxlen)
3144 eptr = Buf->buf + Buf->BufUsed;
3145 while ((aptr < eptr) && (*aptr != '\0')) {
3146 if (Ctdl_IsUtf8SequenceStart(*aptr)){
3147 m = Ctdl_GetUtf8SequenceLength(aptr, eptr);
3148 while ((*aptr++ != '\0') && (m-- > 0));
3157 Buf->BufUsed = aptr - Buf->buf;
3158 return Buf->BufUsed;
3161 return Buf->BufUsed;
3169 /*******************************************************************************
3171 *******************************************************************************/
3174 #define DEF_MEM_LEVEL 8 /*< memlevel??? */
3175 #define OS_CODE 0x03 /*< unix */
3178 * @ingroup StrBuf_DeEnCoder
3179 * @brief uses the same calling syntax as compress2(), but it
3180 * creates a stream compatible with HTTP "Content-encoding: gzip"
3181 * @param dest compressed buffer
3182 * @param destLen length of the compresed data
3183 * @param source source to encode
3184 * @param sourceLen length of source to encode
3185 * @param level compression level
3187 int ZEXPORT compress_gzip(Bytef * dest,
3189 const Bytef * source,
3193 const int gz_magic[2] = { 0x1f, 0x8b }; /* gzip magic header */
3195 /* write gzip header */
3196 snprintf((char *) dest, *destLen,
3197 "%c%c%c%c%c%c%c%c%c%c",
3198 gz_magic[0], gz_magic[1], Z_DEFLATED,
3199 0 /*flags */ , 0, 0, 0, 0 /*time */ , 0 /* xflags */ ,
3202 /* normal deflate */
3205 stream.next_in = (Bytef *) source;
3206 stream.avail_in = (uInt) sourceLen;
3207 stream.next_out = dest + 10L; // after header
3208 stream.avail_out = (uInt) * destLen;
3209 if ((uLong) stream.avail_out != *destLen)
3212 stream.zalloc = (alloc_func) 0;
3213 stream.zfree = (free_func) 0;
3214 stream.opaque = (voidpf) 0;
3216 err = deflateInit2(&stream, level, Z_DEFLATED, -MAX_WBITS,
3217 DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY);
3221 err = deflate(&stream, Z_FINISH);
3222 if (err != Z_STREAM_END) {
3223 deflateEnd(&stream);
3224 return err == Z_OK ? Z_BUF_ERROR : err;
3226 *destLen = stream.total_out + 10L;
3228 /* write CRC and Length */
3229 uLong crc = crc32(0L, source, sourceLen);
3231 for (n = 0; n < 4; ++n, ++*destLen) {
3232 dest[*destLen] = (int) (crc & 0xff);
3235 uLong len = stream.total_in;
3236 for (n = 0; n < 4; ++n, ++*destLen) {
3237 dest[*destLen] = (int) (len & 0xff);
3240 err = deflateEnd(&stream);
3247 * @ingroup StrBuf_DeEnCoder
3248 * @brief compress the buffer with gzip
3249 * Attention! If you feed this a Const String, you must maintain the uncompressed buffer yourself!
3250 * @param Buf buffer whose content is to be gzipped
3252 int CompressBuffer(StrBuf *Buf)
3255 char *compressed_data = NULL;
3256 size_t compressed_len, bufsize;
3259 bufsize = compressed_len = Buf->BufUsed + (Buf->BufUsed / 100) + 100;
3260 compressed_data = malloc(compressed_len);
3262 if (compressed_data == NULL)
3264 /* Flush some space after the used payload so valgrind shuts up... */
3265 while ((i < 10) && (Buf->BufUsed + i < Buf->BufSize))
3266 Buf->buf[Buf->BufUsed + i++] = '\0';
3267 if (compress_gzip((Bytef *) compressed_data,
3270 (uLongf) Buf->BufUsed, Z_BEST_SPEED) == Z_OK) {
3273 Buf->buf = compressed_data;
3274 Buf->BufUsed = compressed_len;
3275 Buf->BufSize = bufsize;
3276 /* Flush some space after the used payload so valgrind shuts up... */
3278 while ((i < 10) && (Buf->BufUsed + i < Buf->BufSize))
3279 Buf->buf[Buf->BufUsed + i++] = '\0';
3282 free(compressed_data);
3284 #endif /* HAVE_ZLIB */
3290 /*******************************************************************************
3291 * File I/O; Prefer buffered read since its faster! *
3292 *******************************************************************************/
3295 * @ingroup StrBuf_IO
3296 * @brief Read a line from socket
3297 * flushes and closes the FD on error
3298 * @param buf the buffer to get the input to
3299 * @param fd pointer to the filedescriptor to read
3300 * @param append Append to an existing string or replace?
3301 * @param Error strerror() on error
3302 * @returns numbers of chars read
3304 int StrBufTCP_read_line(StrBuf *buf, int *fd, int append, const char **Error)
3306 int len, rlen, slen;
3311 slen = len = buf->BufUsed;
3313 rlen = read(*fd, &buf->buf[len], 1);
3315 *Error = strerror(errno);
3322 if (buf->buf[len] == '\n')
3324 if (buf->buf[len] != '\r')
3326 if (len + 2 >= buf->BufSize) {
3328 buf->buf[len+1] = '\0';
3329 IncreaseBuf(buf, 1, -1);
3333 buf->buf[len] = '\0';
3338 * @ingroup StrBuf_BufferedIO
3339 * @brief Read a line from socket
3340 * flushes and closes the FD on error
3341 * @param Line the line to read from the fd / I/O Buffer
3342 * @param buf the buffer to get the input to
3343 * @param fd pointer to the filedescriptor to read
3344 * @param timeout number of successless selects until we bail out
3345 * @param selectresolution how long to wait on each select
3346 * @param Error strerror() on error
3347 * @returns numbers of chars read
3349 int StrBufTCP_read_buffered_line(StrBuf *Line,
3353 int selectresolution,
3357 int nSuccessLess = 0;
3364 if (buf->BufUsed > 0) {
3365 pch = strchr(buf->buf, '\n');
3368 len = pch - buf->buf;
3369 if (len > 0 && (*(pch - 1) == '\r') )
3371 StrBufSub(Line, buf, 0, len - rlen);
3372 StrBufCutLeft(buf, len + 1);
3377 if (buf->BufSize - buf->BufUsed < 10)
3378 IncreaseBuf(buf, 1, -1);
3380 fdflags = fcntl(*fd, F_GETFL);
3381 IsNonBlock = (fdflags & O_NONBLOCK) == O_NONBLOCK;
3383 while ((nSuccessLess < timeout) && (pch == NULL)) {
3385 tv.tv_sec = selectresolution;
3390 if (select(*fd + 1, NULL, &rfds, NULL, &tv) == -1) {
3391 *Error = strerror(errno);
3397 if (IsNonBlock && ! FD_ISSET(*fd, &rfds)) {
3402 &buf->buf[buf->BufUsed],
3403 buf->BufSize - buf->BufUsed - 1);
3405 *Error = strerror(errno);
3410 else if (rlen > 0) {
3412 buf->BufUsed += rlen;
3413 buf->buf[buf->BufUsed] = '\0';
3414 if (buf->BufUsed + 10 > buf->BufSize) {
3415 IncreaseBuf(buf, 1, -1);
3417 pch = strchr(buf->buf, '\n');
3424 len = pch - buf->buf;
3425 if (len > 0 && (*(pch - 1) == '\r') )
3427 StrBufSub(Line, buf, 0, len - rlen);
3428 StrBufCutLeft(buf, len + 1);
3435 static const char *ErrRBLF_PreConditionFailed="StrBufTCP_read_buffered_line_fast: Wrong arguments or invalid Filedescriptor";
3436 static const char *ErrRBLF_SelectFailed="StrBufTCP_read_buffered_line_fast: Select failed without reason";
3437 static const char *ErrRBLF_NotEnoughSentFromServer="StrBufTCP_read_buffered_line_fast: No complete line was sent from peer";
3439 * @ingroup StrBuf_BufferedIO
3440 * @brief Read a line from socket
3441 * flushes and closes the FD on error
3442 * @param Line where to append our Line read from the fd / I/O Buffer;
3443 * @param IOBuf the buffer to get the input to; lifetime pair to FD
3444 * @param Pos pointer to the current read position, should be NULL initialized on opening the FD it belongs to.!
3445 * @param fd pointer to the filedescriptor to read
3446 * @param timeout number of successless selects until we bail out
3447 * @param selectresolution how long to wait on each select
3448 * @param Error strerror() on error
3449 * @returns numbers of chars read or -1 in case of error. "\n" will become 0
3451 int StrBufTCP_read_buffered_line_fast(StrBuf *Line,
3456 int selectresolution,
3459 const char *pche = NULL;
3460 const char *pos = NULL;
3462 int len, rlen, retlen;
3463 int nSuccessLess = 0;
3465 const char *pch = NULL;
3471 if ((Line == NULL) ||
3478 *Error = ErrRBLF_PreConditionFailed;
3483 if ((IOBuf->BufUsed > 0) &&
3485 (pos < IOBuf->buf + IOBuf->BufUsed))
3489 pche = IOBuf->buf + IOBuf->BufUsed;
3493 while ((pch < pche) && (*pch != '\n'))
3495 if (Line->BufUsed + 10 > Line->BufSize)
3498 apos = pcht - Line->buf;
3500 IncreaseBuf(Line, 1, -1);
3501 pcht = Line->buf + apos;
3509 if (len > 0 && (*(pch - 1) == '\r') )
3518 if ((pch >= pche) || (*pch == '\0'))
3526 if ((pch != NULL) &&
3529 if (pch + 1 >= pche) {
3542 /* If we come here, Pos is Unset since we read everything into Line, and now go for more. */
3544 if (IOBuf->BufSize - IOBuf->BufUsed < 10)
3545 IncreaseBuf(IOBuf, 1, -1);
3547 fdflags = fcntl(*fd, F_GETFL);
3548 IsNonBlock = (fdflags & O_NONBLOCK) == O_NONBLOCK;
3551 while ((nSuccessLess < timeout) &&
3561 if (select((*fd) + 1, &rfds, NULL, NULL, &tv) == -1) {
3562 *Error = strerror(errno);
3566 *Error = ErrRBLF_SelectFailed;
3569 if (! FD_ISSET(*fd, &rfds) != 0) {
3575 &IOBuf->buf[IOBuf->BufUsed],
3576 IOBuf->BufSize - IOBuf->BufUsed - 1);
3578 *Error = strerror(errno);
3583 else if (rlen > 0) {
3585 pLF = IOBuf->buf + IOBuf->BufUsed;
3586 IOBuf->BufUsed += rlen;
3587 IOBuf->buf[IOBuf->BufUsed] = '\0';
3589 pche = IOBuf->buf + IOBuf->BufUsed;
3591 while ((pLF < pche) && (*pLF != '\n'))
3593 if ((pLF >= pche) || (*pLF == '\0'))
3596 if (IOBuf->BufUsed + 10 > IOBuf->BufSize)
3600 if (pLF != NULL) apos = pLF - IOBuf->buf;
3601 IncreaseBuf(IOBuf, 1, -1);
3602 if (pLF != NULL) pLF = IOBuf->buf + apos;
3612 if (len > 0 && (*(pLF - 1) == '\r') )
3614 StrBufAppendBufPlain(Line, ChrPtr(IOBuf), len, 0);
3615 if (pLF + 1 >= IOBuf->buf + IOBuf->BufUsed)
3621 return retlen + len;
3623 *Error = ErrRBLF_NotEnoughSentFromServer;
3628 static const char *ErrRBLF_BLOBPreConditionFailed="StrBufReadBLOB: Wrong arguments or invalid Filedescriptor";
3630 * @ingroup StrBuf_IO
3631 * @brief Input binary data from socket
3632 * flushes and closes the FD on error
3633 * @param Buf the buffer to get the input to
3634 * @param fd pointer to the filedescriptor to read
3635 * @param append Append to an existing string or replace?
3636 * @param nBytes the maximal number of bytes to read
3637 * @param Error strerror() on error
3638 * @returns numbers of chars read
3640 int StrBufReadBLOB(StrBuf *Buf, int *fd, int append, long nBytes, const char **Error)
3643 int len, rlen, slen;
3651 if ((Buf == NULL) || (*fd == -1))
3653 *Error = ErrRBLF_BLOBPreConditionFailed;
3658 if (Buf->BufUsed + nBytes >= Buf->BufSize)
3659 IncreaseBuf(Buf, 1, Buf->BufUsed + nBytes);
3661 ptr = Buf->buf + Buf->BufUsed;
3663 slen = len = Buf->BufUsed;
3665 fdflags = fcntl(*fd, F_GETFL);
3666 IsNonBlock = (fdflags & O_NONBLOCK) == O_NONBLOCK;
3668 while ((nRead < nBytes) &&
3678 if (select(*fd + 1, &rfds, NULL, NULL, &tv) == -1) {
3679 *Error = strerror(errno);
3683 *Error = ErrRBLF_SelectFailed;
3686 if (! FD_ISSET(*fd, &rfds) != 0) {
3692 if ((rlen = read(*fd,
3694 nBytes - nRead)) == -1) {
3697 *Error = strerror(errno);
3702 Buf->BufUsed += rlen;
3704 Buf->buf[Buf->BufUsed] = '\0';
3708 const char *ErrRBB_BLOBFPreConditionFailed = "StrBufReadBLOBBuffered: to many selects; aborting.";
3709 const char *ErrRBB_too_many_selects = "StrBufReadBLOBBuffered: to many selects; aborting.";
3711 * @ingroup StrBuf_BufferedIO
3712 * @brief Input binary data from socket
3713 * flushes and closes the FD on error
3714 * @param Blob put binary thing here
3715 * @param IOBuf the buffer to get the input to
3716 * @param Pos offset inside of IOBuf
3717 * @param fd pointer to the filedescriptor to read
3718 * @param append Append to an existing string or replace?
3719 * @param nBytes the maximal number of bytes to read
3720 * @param check whether we should search for '000\n' terminators in case of timeouts
3721 * @param Error strerror() on error
3722 * @returns numbers of chars read
3724 int StrBufReadBLOBBuffered(StrBuf *Blob,
3739 int nAlreadyRead = 0;
3745 int nSuccessLess = 0;
3748 if ((Blob == NULL) || (*fd == -1) || (IOBuf == NULL) || (Pos == NULL))
3752 *Error = ErrRBB_BLOBFPreConditionFailed;
3758 if (Blob->BufUsed + nBytes >= Blob->BufSize)
3759 IncreaseBuf(Blob, append, Blob->BufUsed + nBytes);
3764 len = pos - IOBuf->buf;
3765 rlen = IOBuf->BufUsed - len;
3768 if ((IOBuf->BufUsed > 0) &&
3770 (pos < IOBuf->buf + IOBuf->BufUsed))
3772 pche = IOBuf->buf + IOBuf->BufUsed;
3775 if (rlen < nBytes) {
3776 memcpy(Blob->buf + Blob->BufUsed, pos, rlen);
3777 Blob->BufUsed += rlen;
3778 Blob->buf[Blob->BufUsed] = '\0';
3779 nAlreadyRead = nRead = rlen;
3782 if (rlen >= nBytes) {
3783 memcpy(Blob->buf + Blob->BufUsed, pos, nBytes);
3784 Blob->BufUsed += nBytes;
3785 Blob->buf[Blob->BufUsed] = '\0';
3786 if (rlen == nBytes) {
3798 if (IOBuf->BufSize < nBytes - nRead)
3799 IncreaseBuf(IOBuf, 0, nBytes - nRead);
3802 slen = len = Blob->BufUsed;
3804 fdflags = fcntl(*fd, F_GETFL);
3805 IsNonBlock = (fdflags & O_NONBLOCK) == O_NONBLOCK;
3813 while ((nSuccessLess < MaxTries) &&
3823 if (select(*fd + 1, &rfds, NULL, NULL, &tv) == -1) {
3824 *Error = strerror(errno);
3828 *Error = ErrRBLF_SelectFailed;
3831 if (! FD_ISSET(*fd, &rfds) != 0) {
3838 IOBuf->BufSize - (ptr - IOBuf->buf));
3842 *Error = strerror(errno);
3845 else if (rlen == 0){
3846 if ((check == NNN_TERM) &&
3848 (strncmp(IOBuf->buf + IOBuf->BufUsed - 5, "\n000\n", 5) == 0))
3850 StrBufPlain(Blob, HKEY("\n000\n"));
3851 StrBufCutRight(Blob, 5);
3852 return Blob->BufUsed;
3854 else if (!IsNonBlock)
3856 else if (nSuccessLess > MaxTries) {
3858 *Error = ErrRBB_too_many_selects;
3862 else if (rlen > 0) {
3866 IOBuf->BufUsed += rlen;
3869 if (nSuccessLess >= MaxTries) {
3871 *Error = ErrRBB_too_many_selects;
3875 if (nRead > nBytes) {
3876 *Pos = IOBuf->buf + nBytes;
3878 Blob->buf[Blob->BufUsed] = '\0';
3879 StrBufAppendBufPlain(Blob, IOBuf->buf, nBytes, 0);
3883 return nRead + nAlreadyRead;
3887 * @ingroup StrBuf_IO
3888 * @brief extract a "next line" from Buf; Ptr to persist across several iterations
3889 * @param LineBuf your line will be copied here.
3890 * @param Buf BLOB with lines of text...
3891 * @param Ptr moved arround to keep the next-line across several iterations
3892 * has to be &NULL on start; will be &NotNULL on end of buffer
3893 * @returns size of copied buffer
3895 int StrBufSipLine(StrBuf *LineBuf, StrBuf *Buf, const char **Ptr)
3897 const char *aptr, *ptr, *eptr;
3900 if ((Buf == NULL) || (*Ptr == StrBufNOTNULL)) {
3901 *Ptr = StrBufNOTNULL;
3905 FlushStrBuf(LineBuf);
3907 ptr = aptr = Buf->buf;
3911 optr = LineBuf->buf;
3912 eptr = Buf->buf + Buf->BufUsed;
3913 xptr = LineBuf->buf + LineBuf->BufSize - 1;
3915 while ((ptr <= eptr) &&
3922 LineBuf->BufUsed = optr - LineBuf->buf;
3923 IncreaseBuf(LineBuf, 1, LineBuf->BufUsed + 1);
3924 optr = LineBuf->buf + LineBuf->BufUsed;
3925 xptr = LineBuf->buf + LineBuf->BufSize - 1;
3929 if ((ptr >= eptr) && (optr > LineBuf->buf))
3931 LineBuf->BufUsed = optr - LineBuf->buf;
3933 if ((ptr <= eptr) && (*ptr == '\r'))
3935 if ((ptr <= eptr) && (*ptr == '\n'))
3942 *Ptr = StrBufNOTNULL;
3945 return Buf->BufUsed - (ptr - Buf->buf);
3950 * @ingroup StrBuf_IO
3951 * @brief removes double slashes from pathnames
3952 * @param Dir directory string to filter
3953 * @param RemoveTrailingSlash allows / disallows trailing slashes
3955 void StrBufStripSlashes(StrBuf *Dir, int RemoveTrailingSlash)
3961 while (!IsEmptyStr(a)) {
3973 if ((RemoveTrailingSlash) && (*(b - 1) != '/')){
3978 Dir->BufUsed = b - Dir->buf;