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/* 
 * uriparser - RFC 3986 URI parsing library 
 * 
 * Copyright (C) 2007, Weijia Song <songweijia@gmail.com> 
 * Copyright (C) 2007, Sebastian Pipping <sebastian@pipping.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: 
 * 
 *     1. Redistributions  of  source  code   must  retain  the  above
 *        copyright notice, this list  of conditions and the following
 *        disclaimer.
 * 
 *     2. 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.
 * 
 *     3. Neither the  name of the  copyright holder 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 HOLDER  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 "UriShorten.c" 
#  undef URI_PASS_ANSI 
# endif 
# ifdef URI_ENABLE_UNICODE 
#  define URI_PASS_UNICODE 1 
#  include "UriShorten.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" 
# include "UriMemory.h" 
#endif 
 
 
 
static URI_INLINE UriBool URI_FUNC(AppendSegment)(URI_TYPE(Uri) * uri, 
		const URI_CHAR * first, const URI_CHAR * afterLast, 
		UriMemoryManager * memory) { 
	/* Create segment */ 
	URI_TYPE(PathSegment) * segment = memory->malloc(memory, 1 * sizeof(URI_TYPE(PathSegment))); 
	if (segment == NULL) { 
		return URI_FALSE; /* Raises malloc error */ 
	} 
	segment->next = NULL; 
	segment->text.first = first; 
	segment->text.afterLast = afterLast; 
 
	/* Put into chain */ 
	if (uri->pathTail == NULL) { 
		uri->pathHead = segment; 
	} else { 
		uri->pathTail->next = segment; 
	} 
	uri->pathTail = segment; 
 
	return URI_TRUE; 
} 
 
 
 
static URI_INLINE UriBool URI_FUNC(EqualsAuthority)(const URI_TYPE(Uri) * first, 
		const URI_TYPE(Uri) * second) { 
	/* IPv4 */ 
	if (first->hostData.ip4 != NULL) { 
		return ((second->hostData.ip4 != NULL) 
				&& !memcmp(first->hostData.ip4->data, 
					second->hostData.ip4->data, 4)) ? URI_TRUE : URI_FALSE; 
	} 
 
	/* IPv6 */ 
	if (first->hostData.ip6 != NULL) { 
		return ((second->hostData.ip6 != NULL) 
				&& !memcmp(first->hostData.ip6->data, 
					second->hostData.ip6->data, 16)) ? URI_TRUE : URI_FALSE; 
	} 
 
	/* IPvFuture */ 
	if (first->hostData.ipFuture.first != NULL) { 
		return ((second->hostData.ipFuture.first != NULL) 
				&& !URI_FUNC(CompareRange)(&first->hostData.ipFuture, 
					&second->hostData.ipFuture)) ? URI_TRUE : URI_FALSE; 
	} 
 
	return !URI_FUNC(CompareRange)(&first->hostText, &second->hostText) 
			? URI_TRUE : URI_FALSE; 
} 
 
 
 
static int URI_FUNC(RemoveBaseUriImpl)(URI_TYPE(Uri) * dest, 
		const URI_TYPE(Uri) * absSource, 
		const URI_TYPE(Uri) * absBase, 
		UriBool domainRootMode, UriMemoryManager * memory) { 
	if (dest == NULL) { 
		return URI_ERROR_NULL; 
	} 
	URI_FUNC(ResetUri)(dest); 
 
	if ((absSource == NULL) || (absBase == NULL)) { 
		return URI_ERROR_NULL; 
	} 
 
	/* absBase absolute? */ 
	if (absBase->scheme.first == NULL) { 
		return URI_ERROR_REMOVEBASE_REL_BASE; 
	} 
 
	/* absSource absolute? */ 
	if (absSource->scheme.first == NULL) { 
		return URI_ERROR_REMOVEBASE_REL_SOURCE; 
	} 
 
	/* [01/50]	if (A.scheme != Base.scheme) then */ 
				if (URI_FUNC(CompareRange)(&absSource->scheme, &absBase->scheme)) { 
	/* [02/50]	   T.scheme    = A.scheme; */ 
					dest->scheme = absSource->scheme; 
	/* [03/50]	   T.authority = A.authority; */ 
					if (!URI_FUNC(CopyAuthority)(dest, absSource, memory)) { 
						return URI_ERROR_MALLOC; 
					} 
	/* [04/50]	   T.path      = A.path; */ 
					if (!URI_FUNC(CopyPath)(dest, absSource, memory)) { 
						return URI_ERROR_MALLOC; 
					} 
	/* [05/50]	else */ 
				} else { 
	/* [06/50]	   undef(T.scheme); */ 
					/* NOOP */ 
	/* [07/50]	   if (A.authority != Base.authority) then */ 
					if (!URI_FUNC(EqualsAuthority)(absSource, absBase)) { 
	/* [08/50]	      T.authority = A.authority; */ 
						if (!URI_FUNC(CopyAuthority)(dest, absSource, memory)) { 
							return URI_ERROR_MALLOC; 
						} 
	/* [09/50]	      T.path      = A.path; */ 
						if (!URI_FUNC(CopyPath)(dest, absSource, memory)) { 
							return URI_ERROR_MALLOC; 
						} 
	/* [10/50]	   else */ 
					} else { 
	/* [11/50]	      if domainRootMode then */ 
						if (domainRootMode == URI_TRUE) { 
	/* [12/50]	         undef(T.authority); */ 
							/* NOOP */ 
	/* [13/50]	         if (first(A.path) == "") then */ 
							/* GROUPED */ 
	/* [14/50]	            T.path   = "/." + A.path; */ 
								/* GROUPED */ 
	/* [15/50]	         else */ 
								/* GROUPED */ 
	/* [16/50]	            T.path   = A.path; */ 
								/* GROUPED */ 
	/* [17/50]	         endif; */ 
							if (!URI_FUNC(CopyPath)(dest, absSource, memory)) { 
								return URI_ERROR_MALLOC; 
							} 
							dest->absolutePath = URI_TRUE; 
 
							if (!URI_FUNC(FixAmbiguity)(dest, memory)) { 
								return URI_ERROR_MALLOC; 
							} 
	/* [18/50]	      else */ 
						} else { 
							const URI_TYPE(PathSegment) * sourceSeg = absSource->pathHead; 
							const URI_TYPE(PathSegment) * baseSeg = absBase->pathHead; 
	/* [19/50]	         bool pathNaked = true; */ 
							UriBool pathNaked = URI_TRUE; 
	/* [20/50]	         undef(last(Base.path)); */ 
							/* NOOP */ 
	/* [21/50]	         T.path = ""; */ 
							dest->absolutePath = URI_FALSE; 
	/* [22/50]	         while (first(A.path) == first(Base.path)) do */ 
							while ((sourceSeg != NULL) && (baseSeg != NULL) 
									&& !URI_FUNC(CompareRange)(&sourceSeg->text, &baseSeg->text) 
									&& !((sourceSeg->text.first == sourceSeg->text.afterLast) 
										&& ((sourceSeg->next == NULL) != (baseSeg->next == NULL)))) { 
	/* [23/50]	            A.path++; */ 
								sourceSeg = sourceSeg->next; 
	/* [24/50]	            Base.path++; */ 
								baseSeg = baseSeg->next; 
	/* [25/50]	         endwhile; */ 
							} 
	/* [26/50]	         while defined(first(Base.path)) do */ 
							while ((baseSeg != NULL) && (baseSeg->next != NULL)) { 
	/* [27/50]	            Base.path++; */ 
								baseSeg = baseSeg->next; 
	/* [28/50]	            T.path += "../"; */ 
								if (!URI_FUNC(AppendSegment)(dest, URI_FUNC(ConstParent), 
										URI_FUNC(ConstParent) + 2, memory)) { 
									return URI_ERROR_MALLOC; 
								} 
	/* [29/50]	            pathNaked = false; */ 
								pathNaked = URI_FALSE; 
	/* [30/50]	         endwhile; */ 
							} 
	/* [31/50]	         while defined(first(A.path)) do */ 
							while (sourceSeg != NULL) { 
	/* [32/50]	            if pathNaked then */ 
								if (pathNaked == URI_TRUE) { 
	/* [33/50]	               if (first(A.path) contains ":") then */ 
									UriBool containsColon = URI_FALSE; 
									const URI_CHAR * ch = sourceSeg->text.first; 
									for (; ch < sourceSeg->text.afterLast; ch++) { 
										if (*ch == _UT(':')) { 
											containsColon = URI_TRUE; 
											break; 
										} 
									} 
 
									if (containsColon) { 
	/* [34/50]	                  T.path += "./"; */ 
										if (!URI_FUNC(AppendSegment)(dest, URI_FUNC(ConstPwd), 
												URI_FUNC(ConstPwd) + 1, memory)) { 
											return URI_ERROR_MALLOC; 
										} 
	/* [35/50]	               elseif (first(A.path) == "") then */ 
									} else if (sourceSeg->text.first == sourceSeg->text.afterLast) { 
	/* [36/50]	                  T.path += "/."; */ 
										if (!URI_FUNC(AppendSegment)(dest, URI_FUNC(ConstPwd), 
												URI_FUNC(ConstPwd) + 1, memory)) { 
											return URI_ERROR_MALLOC; 
										} 
	/* [37/50]	               endif; */ 
									} 
	/* [38/50]	            endif; */ 
								} 
	/* [39/50]	            T.path += first(A.path); */ 
								if (!URI_FUNC(AppendSegment)(dest, sourceSeg->text.first, 
										sourceSeg->text.afterLast, memory)) { 
									return URI_ERROR_MALLOC; 
								} 
	/* [40/50]	            pathNaked = false; */ 
								pathNaked = URI_FALSE; 
	/* [41/50]	            A.path++; */ 
								sourceSeg = sourceSeg->next; 
	/* [42/50]	            if defined(first(A.path)) then */ 
								/* NOOP */ 
	/* [43/50]	               T.path += + "/"; */ 
								/* NOOP */ 
	/* [44/50]	            endif; */ 
								/* NOOP */ 
	/* [45/50]	         endwhile; */ 
							} 
	/* [46/50]	      endif; */ 
						} 
	/* [47/50]	   endif; */ 
					} 
	/* [48/50]	endif; */ 
				} 
	/* [49/50]	T.query     = A.query; */ 
				dest->query = absSource->query; 
	/* [50/50]	T.fragment  = A.fragment; */ 
				dest->fragment = absSource->fragment; 
 
	return URI_SUCCESS; 
} 
 
 
 
int URI_FUNC(RemoveBaseUri)(URI_TYPE(Uri) * dest, 
		const URI_TYPE(Uri) * absSource, 
		const URI_TYPE(Uri) * absBase, 
		UriBool domainRootMode) { 
	return URI_FUNC(RemoveBaseUriMm)(dest, absSource, absBase, 
			domainRootMode, NULL); 
} 
 
 
 
int URI_FUNC(RemoveBaseUriMm)(URI_TYPE(Uri) * dest, 
		const URI_TYPE(Uri) * absSource, 
		const URI_TYPE(Uri) * absBase, 
		UriBool domainRootMode, UriMemoryManager * memory) { 
	int res; 
 
	URI_CHECK_MEMORY_MANAGER(memory);  /* may return */ 
 
	res = URI_FUNC(RemoveBaseUriImpl)(dest, absSource, 
			absBase, domainRootMode, memory); 
	if ((res != URI_SUCCESS) && (dest != NULL)) { 
		URI_FUNC(FreeUriMembersMm)(dest, memory); 
	} 
	return res; 
} 
 
 
 
#endif