diff options
author | Jörg Frings-Fürst <debian@jff-webhsoting.net> | 2014-08-06 18:24:22 +0200 |
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committer | Jörg Frings-Fürst <debian@jff-webhsoting.net> | 2014-08-06 18:24:22 +0200 |
commit | 886e5076c8e81fd0cdfe82dbf4a80d19e778d594 (patch) | |
tree | 5c837ed148fbb2bd73dd310fcea07daeddc095d6 /src/UriResolve.c |
Imported Upstream version 0.8.0.1upstream/0.8.0.1
Diffstat (limited to 'src/UriResolve.c')
-rw-r--r-- | src/UriResolve.c | 290 |
1 files changed, 290 insertions, 0 deletions
diff --git a/src/UriResolve.c b/src/UriResolve.c new file mode 100644 index 0000000..2873060 --- /dev/null +++ b/src/UriResolve.c @@ -0,0 +1,290 @@ +/* + * uriparser - RFC 3986 URI parsing library + * + * Copyright (C) 2007, Weijia Song <songweijia@gmail.com> + * Copyright (C) 2007, Sebastian Pipping <webmaster@hartwork.org> + * 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 <ORGANIZATION> 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 <uriparser/UriDefsConfig.h> +#if (!defined(URI_PASS_ANSI) && !defined(URI_PASS_UNICODE)) +/* Include SELF twice */ +# ifdef URI_ENABLE_ANSI +# define URI_PASS_ANSI 1 +# include "UriResolve.c" +# undef URI_PASS_ANSI +# endif +# ifdef URI_ENABLE_UNICODE +# define URI_PASS_UNICODE 1 +# include "UriResolve.c" +# undef URI_PASS_UNICODE +# endif +#else +# ifdef URI_PASS_ANSI +# include <uriparser/UriDefsAnsi.h> +# else +# include <uriparser/UriDefsUnicode.h> +# include <wchar.h> +# endif + + + +#ifndef URI_DOXYGEN +# include <uriparser/Uri.h> +# include "UriCommon.h" +#endif + + + +/* Appends a relative URI to an absolute. The last path segment of + * the absolute URI is replaced. */ +static URI_INLINE UriBool URI_FUNC(MergePath)(URI_TYPE(Uri) * absWork, + const URI_TYPE(Uri) * relAppend) { + URI_TYPE(PathSegment) * sourceWalker; + URI_TYPE(PathSegment) * destPrev; + if (relAppend->pathHead == NULL) { + return URI_TRUE; + } + + /* Replace last segment ("" if trailing slash) with first of append chain */ + if (absWork->pathHead == NULL) { + URI_TYPE(PathSegment) * const dup = malloc(sizeof(URI_TYPE(PathSegment))); + if (dup == NULL) { + return URI_FALSE; /* Raises malloc error */ + } + dup->next = NULL; + absWork->pathHead = dup; + absWork->pathTail = dup; + } + absWork->pathTail->text.first = relAppend->pathHead->text.first; + absWork->pathTail->text.afterLast = relAppend->pathHead->text.afterLast; + + /* Append all the others */ + sourceWalker = relAppend->pathHead->next; + if (sourceWalker == NULL) { + return URI_TRUE; + } + destPrev = absWork->pathTail; + + for (;;) { + URI_TYPE(PathSegment) * const dup = malloc(sizeof(URI_TYPE(PathSegment))); + if (dup == NULL) { + destPrev->next = NULL; + absWork->pathTail = destPrev; + return URI_FALSE; /* Raises malloc error */ + } + dup->text = sourceWalker->text; + destPrev->next = dup; + + if (sourceWalker->next == NULL) { + absWork->pathTail = dup; + absWork->pathTail->next = NULL; + break; + } + destPrev = dup; + sourceWalker = sourceWalker->next; + } + + return URI_TRUE; +} + + +static int URI_FUNC(ResolveAbsolutePathFlag)(URI_TYPE(Uri) * absWork) { + if (absWork == NULL) { + return URI_ERROR_NULL; + } + + if (URI_FUNC(IsHostSet)(absWork) && absWork->absolutePath) { + /* Empty segment needed, instead? */ + if (absWork->pathHead == NULL) { + URI_TYPE(PathSegment) * const segment = malloc(sizeof(URI_TYPE(PathSegment))); + if (segment == NULL) { + return URI_ERROR_MALLOC; + } + segment->text.first = URI_FUNC(SafeToPointTo); + segment->text.afterLast = URI_FUNC(SafeToPointTo); + segment->next = NULL; + + absWork->pathHead = segment; + absWork->pathTail = segment; + } + + absWork->absolutePath = URI_FALSE; + } + + return URI_SUCCESS; +} + + +static int URI_FUNC(AddBaseUriImpl)(URI_TYPE(Uri) * absDest, + const URI_TYPE(Uri) * relSource, + const URI_TYPE(Uri) * absBase) { + if (absDest == NULL) { + return URI_ERROR_NULL; + } + URI_FUNC(ResetUri)(absDest); + + if ((relSource == NULL) || (absBase == NULL)) { + return URI_ERROR_NULL; + } + + /* absBase absolute? */ + if (absBase->scheme.first == NULL) { + return URI_ERROR_ADDBASE_REL_BASE; + } + + /* [01/32] if defined(R.scheme) then */ + if (relSource->scheme.first != NULL) { + /* [02/32] T.scheme = R.scheme; */ + absDest->scheme = relSource->scheme; + /* [03/32] T.authority = R.authority; */ + if (!URI_FUNC(CopyAuthority)(absDest, relSource)) { + return URI_ERROR_MALLOC; + } + /* [04/32] T.path = remove_dot_segments(R.path); */ + if (!URI_FUNC(CopyPath)(absDest, relSource)) { + return URI_ERROR_MALLOC; + } + if (!URI_FUNC(RemoveDotSegmentsAbsolute)(absDest)) { + return URI_ERROR_MALLOC; + } + /* [05/32] T.query = R.query; */ + absDest->query = relSource->query; + /* [06/32] else */ + } else { + /* [07/32] if defined(R.authority) then */ + if (URI_FUNC(IsHostSet)(relSource)) { + /* [08/32] T.authority = R.authority; */ + if (!URI_FUNC(CopyAuthority)(absDest, relSource)) { + return URI_ERROR_MALLOC; + } + /* [09/32] T.path = remove_dot_segments(R.path); */ + if (!URI_FUNC(CopyPath)(absDest, relSource)) { + return URI_ERROR_MALLOC; + } + if (!URI_FUNC(RemoveDotSegmentsAbsolute)(absDest)) { + return URI_ERROR_MALLOC; + } + /* [10/32] T.query = R.query; */ + absDest->query = relSource->query; + /* [11/32] else */ + } else { + /* [28/32] T.authority = Base.authority; */ + if (!URI_FUNC(CopyAuthority)(absDest, absBase)) { + return URI_ERROR_MALLOC; + } + /* [12/32] if (R.path == "") then */ + if (relSource->pathHead == NULL && !relSource->absolutePath) { + /* [13/32] T.path = Base.path; */ + if (!URI_FUNC(CopyPath)(absDest, absBase)) { + return URI_ERROR_MALLOC; + } + /* [14/32] if defined(R.query) then */ + if (relSource->query.first != NULL) { + /* [15/32] T.query = R.query; */ + absDest->query = relSource->query; + /* [16/32] else */ + } else { + /* [17/32] T.query = Base.query; */ + absDest->query = absBase->query; + /* [18/32] endif; */ + } + /* [19/32] else */ + } else { + /* [20/32] if (R.path starts-with "/") then */ + if (relSource->absolutePath) { + int res; + /* [21/32] T.path = remove_dot_segments(R.path); */ + if (!URI_FUNC(CopyPath)(absDest, relSource)) { + return URI_ERROR_MALLOC; + } + res = URI_FUNC(ResolveAbsolutePathFlag)(absDest); + if (res != URI_SUCCESS) { + return res; + } + if (!URI_FUNC(RemoveDotSegmentsAbsolute)(absDest)) { + return URI_ERROR_MALLOC; + } + /* [22/32] else */ + } else { + /* [23/32] T.path = merge(Base.path, R.path); */ + if (!URI_FUNC(CopyPath)(absDest, absBase)) { + return URI_ERROR_MALLOC; + } + if (!URI_FUNC(MergePath)(absDest, relSource)) { + return URI_ERROR_MALLOC; + } + /* [24/32] T.path = remove_dot_segments(T.path); */ + if (!URI_FUNC(RemoveDotSegmentsAbsolute)(absDest)) { + return URI_ERROR_MALLOC; + } + + if (!URI_FUNC(FixAmbiguity)(absDest)) { + return URI_ERROR_MALLOC; + } + /* [25/32] endif; */ + } + /* [26/32] T.query = R.query; */ + absDest->query = relSource->query; + /* [27/32] endif; */ + } + URI_FUNC(FixEmptyTrailSegment)(absDest); + /* [29/32] endif; */ + } + /* [30/32] T.scheme = Base.scheme; */ + absDest->scheme = absBase->scheme; + /* [31/32] endif; */ + } + /* [32/32] T.fragment = R.fragment; */ + absDest->fragment = relSource->fragment; + + return URI_SUCCESS; + +} + + + +int URI_FUNC(AddBaseUri)(URI_TYPE(Uri) * absDest, + const URI_TYPE(Uri) * relSource, const URI_TYPE(Uri) * absBase) { + const int res = URI_FUNC(AddBaseUriImpl)(absDest, relSource, absBase); + if ((res != URI_SUCCESS) && (absDest != NULL)) { + URI_FUNC(FreeUriMembers)(absDest); + } + return res; +} + + + +#endif |