From a739a5614834178ba88d04972b4f4ba9c560e1df Mon Sep 17 00:00:00 2001 From: Andreas Baumann Date: Sat, 6 May 2017 16:36:16 +0200 Subject: some rework: - added old style 'redir' function and options along to a new libcurl internal 'follow' parameter 'curl' - moved picohttpparser to it's own subdirectory - added uriparser to be used instead of the home-grown parser in 'redir' --- plugins/uriparser/UriEscape.c | 453 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 453 insertions(+) create mode 100644 plugins/uriparser/UriEscape.c (limited to 'plugins/uriparser/UriEscape.c') diff --git a/plugins/uriparser/UriEscape.c b/plugins/uriparser/UriEscape.c new file mode 100644 index 00000000..79ee3a68 --- /dev/null +++ b/plugins/uriparser/UriEscape.c @@ -0,0 +1,453 @@ +/* + * uriparser - RFC 3986 URI parsing library + * + * Copyright (C) 2007, Weijia Song + * Copyright (C) 2007, Sebastian Pipping + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * * Neither the name of the nor the names of its + * contributors may be used to endorse or promote products + * derived from this software without specific prior written + * permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/* What encodings are enabled? */ +#include +#if (!defined(URI_PASS_ANSI) && !defined(URI_PASS_UNICODE)) +/* Include SELF twice */ +# ifdef URI_ENABLE_ANSI +# define URI_PASS_ANSI 1 +# include "UriEscape.c" +# undef URI_PASS_ANSI +# endif +# ifdef URI_ENABLE_UNICODE +# define URI_PASS_UNICODE 1 +# include "UriEscape.c" +# undef URI_PASS_UNICODE +# endif +#else +# ifdef URI_PASS_ANSI +# include +# else +# include +# include +# endif + + + +#ifndef URI_DOXYGEN +# include +# include "UriCommon.h" +#endif + + + +URI_CHAR * URI_FUNC(Escape)(const URI_CHAR * in, URI_CHAR * out, + UriBool spaceToPlus, UriBool normalizeBreaks) { + return URI_FUNC(EscapeEx)(in, NULL, out, spaceToPlus, normalizeBreaks); +} + + + +URI_CHAR * URI_FUNC(EscapeEx)(const URI_CHAR * inFirst, + const URI_CHAR * inAfterLast, URI_CHAR * out, + UriBool spaceToPlus, UriBool normalizeBreaks) { + const URI_CHAR * read = inFirst; + URI_CHAR * write = out; + UriBool prevWasCr = URI_FALSE; + if ((out == NULL) || (inFirst == out)) { + return NULL; + } else if (inFirst == NULL) { + if (out != NULL) { + out[0] = _UT('\0'); + } + return out; + } + + for (;;) { + if ((inAfterLast != NULL) && (read >= inAfterLast)) { + write[0] = _UT('\0'); + return write; + } + + switch (read[0]) { + case _UT('\0'): + write[0] = _UT('\0'); + return write; + + case _UT(' '): + if (spaceToPlus) { + write[0] = _UT('+'); + write++; + } else { + write[0] = _UT('%'); + write[1] = _UT('2'); + write[2] = _UT('0'); + write += 3; + } + prevWasCr = URI_FALSE; + break; + + case _UT('a'): /* ALPHA */ + case _UT('A'): + case _UT('b'): + case _UT('B'): + case _UT('c'): + case _UT('C'): + case _UT('d'): + case _UT('D'): + case _UT('e'): + case _UT('E'): + case _UT('f'): + case _UT('F'): + case _UT('g'): + case _UT('G'): + case _UT('h'): + case _UT('H'): + case _UT('i'): + case _UT('I'): + case _UT('j'): + case _UT('J'): + case _UT('k'): + case _UT('K'): + case _UT('l'): + case _UT('L'): + case _UT('m'): + case _UT('M'): + case _UT('n'): + case _UT('N'): + case _UT('o'): + case _UT('O'): + case _UT('p'): + case _UT('P'): + case _UT('q'): + case _UT('Q'): + case _UT('r'): + case _UT('R'): + case _UT('s'): + case _UT('S'): + case _UT('t'): + case _UT('T'): + case _UT('u'): + case _UT('U'): + case _UT('v'): + case _UT('V'): + case _UT('w'): + case _UT('W'): + case _UT('x'): + case _UT('X'): + case _UT('y'): + case _UT('Y'): + case _UT('z'): + case _UT('Z'): + case _UT('0'): /* DIGIT */ + case _UT('1'): + case _UT('2'): + case _UT('3'): + case _UT('4'): + case _UT('5'): + case _UT('6'): + case _UT('7'): + case _UT('8'): + case _UT('9'): + case _UT('-'): /* "-" / "." / "_" / "~" */ + case _UT('.'): + case _UT('_'): + case _UT('~'): + /* Copy unmodified */ + write[0] = read[0]; + write++; + + prevWasCr = URI_FALSE; + break; + + case _UT('\x0a'): + if (normalizeBreaks) { + if (!prevWasCr) { + write[0] = _UT('%'); + write[1] = _UT('0'); + write[2] = _UT('D'); + write[3] = _UT('%'); + write[4] = _UT('0'); + write[5] = _UT('A'); + write += 6; + } + } else { + write[0] = _UT('%'); + write[1] = _UT('0'); + write[2] = _UT('A'); + write += 3; + } + prevWasCr = URI_FALSE; + break; + + case _UT('\x0d'): + if (normalizeBreaks) { + write[0] = _UT('%'); + write[1] = _UT('0'); + write[2] = _UT('D'); + write[3] = _UT('%'); + write[4] = _UT('0'); + write[5] = _UT('A'); + write += 6; + } else { + write[0] = _UT('%'); + write[1] = _UT('0'); + write[2] = _UT('D'); + write += 3; + } + prevWasCr = URI_TRUE; + break; + + default: + /* Percent encode */ + { + const unsigned char code = (unsigned char)read[0]; + write[0] = _UT('%'); + write[1] = URI_FUNC(HexToLetter)(code >> 4); + write[2] = URI_FUNC(HexToLetter)(code & 0x0f); + write += 3; + } + prevWasCr = URI_FALSE; + break; + } + + read++; + } +} + + + +const URI_CHAR * URI_FUNC(UnescapeInPlace)(URI_CHAR * inout) { + return URI_FUNC(UnescapeInPlaceEx)(inout, URI_FALSE, URI_BR_DONT_TOUCH); +} + + + +const URI_CHAR * URI_FUNC(UnescapeInPlaceEx)(URI_CHAR * inout, + UriBool plusToSpace, UriBreakConversion breakConversion) { + URI_CHAR * read = inout; + URI_CHAR * write = inout; + UriBool prevWasCr = URI_FALSE; + + if (inout == NULL) { + return NULL; + } + + for (;;) { + switch (read[0]) { + case _UT('\0'): + if (read > write) { + write[0] = _UT('\0'); + } + return write; + + case _UT('%'): + switch (read[1]) { + case _UT('0'): + case _UT('1'): + case _UT('2'): + case _UT('3'): + case _UT('4'): + case _UT('5'): + case _UT('6'): + case _UT('7'): + case _UT('8'): + case _UT('9'): + case _UT('a'): + case _UT('b'): + case _UT('c'): + case _UT('d'): + case _UT('e'): + case _UT('f'): + case _UT('A'): + case _UT('B'): + case _UT('C'): + case _UT('D'): + case _UT('E'): + case _UT('F'): + switch (read[2]) { + case _UT('0'): + case _UT('1'): + case _UT('2'): + case _UT('3'): + case _UT('4'): + case _UT('5'): + case _UT('6'): + case _UT('7'): + case _UT('8'): + case _UT('9'): + case _UT('a'): + case _UT('b'): + case _UT('c'): + case _UT('d'): + case _UT('e'): + case _UT('f'): + case _UT('A'): + case _UT('B'): + case _UT('C'): + case _UT('D'): + case _UT('E'): + case _UT('F'): + { + /* Percent group found */ + const unsigned char left = URI_FUNC(HexdigToInt)(read[1]); + const unsigned char right = URI_FUNC(HexdigToInt)(read[2]); + const int code = 16 * left + right; + switch (code) { + case 10: + switch (breakConversion) { + case URI_BR_TO_LF: + if (!prevWasCr) { + write[0] = (URI_CHAR)10; + write++; + } + break; + + case URI_BR_TO_CRLF: + if (!prevWasCr) { + write[0] = (URI_CHAR)13; + write[1] = (URI_CHAR)10; + write += 2; + } + break; + + case URI_BR_TO_CR: + if (!prevWasCr) { + write[0] = (URI_CHAR)13; + write++; + } + break; + + case URI_BR_DONT_TOUCH: + default: + write[0] = (URI_CHAR)10; + write++; + + } + prevWasCr = URI_FALSE; + break; + + case 13: + switch (breakConversion) { + case URI_BR_TO_LF: + write[0] = (URI_CHAR)10; + write++; + break; + + case URI_BR_TO_CRLF: + write[0] = (URI_CHAR)13; + write[1] = (URI_CHAR)10; + write += 2; + break; + + case URI_BR_TO_CR: + write[0] = (URI_CHAR)13; + write++; + break; + + case URI_BR_DONT_TOUCH: + default: + write[0] = (URI_CHAR)13; + write++; + + } + prevWasCr = URI_TRUE; + break; + + default: + write[0] = (URI_CHAR)(code); + write++; + + prevWasCr = URI_FALSE; + + } + read += 3; + } + break; + + default: + /* Copy two chars unmodified and */ + /* look at this char again */ + if (read > write) { + write[0] = read[0]; + write[1] = read[1]; + } + read += 2; + write += 2; + + prevWasCr = URI_FALSE; + } + break; + + default: + /* Copy one char unmodified and */ + /* look at this char again */ + if (read > write) { + write[0] = read[0]; + } + read++; + write++; + + prevWasCr = URI_FALSE; + } + break; + + case _UT('+'): + if (plusToSpace) { + /* Convert '+' to ' ' */ + write[0] = _UT(' '); + } else { + /* Copy one char unmodified */ + if (read > write) { + write[0] = read[0]; + } + } + read++; + write++; + + prevWasCr = URI_FALSE; + break; + + default: + /* Copy one char unmodified */ + if (read > write) { + write[0] = read[0]; + } + read++; + write++; + + prevWasCr = URI_FALSE; + } + } +} + + + +#endif -- cgit v1.2.3-74-g34f1