| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % M M IIIII M M EEEEE % |
| % MM MM I MM MM E % |
| % M M M I M M M EEE % |
| % M M I M M E % |
| % M M IIIII M M EEEEE % |
| % % |
| % % |
| % MagickCore Mime Methods % |
| % % |
| % Software Design % |
| % July 2000 % |
| % % |
| % % |
| % Copyright 1999-2012 ImageMagick Studio LLC, a non-profit organization % |
| % dedicated to making software imaging solutions freely available. % |
| % % |
| % You may not use this file except in compliance with the License. You may % |
| % obtain a copy of the License at % |
| % % |
| % http://www.imagemagick.org/MagicksToolkit/script/license.php % |
| % % |
| % Unless required by applicable law or agreed to in writing, software % |
| % distributed under the License is distributed on an "AS IS" BASIS, % |
| % WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. % |
| % See the License for the specific language governing permissions and % |
| % limitations under the License. % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % |
| */ |
| |
| /* |
| Include declarations. |
| */ |
| #include "MagickCore/studio.h" |
| #include "MagickCore/blob.h" |
| #include "MagickCore/client.h" |
| #include "MagickCore/configure.h" |
| #include "MagickCore/configure-private.h" |
| #include "MagickCore/exception.h" |
| #include "MagickCore/exception-private.h" |
| #include "MagickCore/hashmap.h" |
| #include "MagickCore/memory_.h" |
| #include "MagickCore/mime.h" |
| #include "MagickCore/mime-private.h" |
| #include "MagickCore/option.h" |
| #include "MagickCore/semaphore.h" |
| #include "MagickCore/string_.h" |
| #include "MagickCore/token.h" |
| #include "MagickCore/utility.h" |
| #include "MagickCore/utility-private.h" |
| #include "MagickCore/xml-tree.h" |
| #include "MagickCore/xml-tree-private.h" |
| |
| /* |
| Define declarations. |
| */ |
| #define MimeFilename "mime.xml" |
| |
| /* |
| Typedef declaration. |
| */ |
| struct _MimeInfo |
| { |
| char |
| *path, |
| *type, |
| *description, |
| *pattern; |
| |
| ssize_t |
| priority; |
| |
| MagickOffsetType |
| offset; |
| |
| size_t |
| extent; |
| |
| DataType |
| data_type; |
| |
| ssize_t |
| mask, |
| value; |
| |
| EndianType |
| endian; |
| |
| size_t |
| length; |
| |
| unsigned char |
| *magic; |
| |
| MagickBooleanType |
| stealth; |
| |
| size_t |
| signature; |
| }; |
| |
| /* |
| Static declarations. |
| */ |
| static const char |
| *MimeMap = (char *) |
| "<?xml version=\"1.0\"?>" |
| "<mimemap>" |
| "</mimemap>"; |
| |
| static LinkedListInfo |
| *mime_list = (LinkedListInfo *) NULL; |
| |
| static SemaphoreInfo |
| *mime_semaphore = (SemaphoreInfo *) NULL; |
| |
| static volatile MagickBooleanType |
| instantiate_mime = MagickFalse; |
| |
| /* |
| Forward declarations. |
| */ |
| static MagickBooleanType |
| InitializeMimeList(ExceptionInfo *); |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| + G e t M i m e I n f o % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % GetMimeInfo() attempts to classify the content to identify which mime type |
| % is associated with the content, if any. |
| % |
| % The format of the GetMimeInfo method is: |
| % |
| % const MimeInfo *GetMimeInfo(const char *filename, |
| % const unsigned char *magic,const size_t length, |
| % ExceptionInfo *exception) |
| % |
| % A description of each parameter follows: |
| % |
| % o filename: If we cannot not classify the string, we attempt to classify |
| % based on the filename (e.g. *.pdf returns application/pdf). |
| % |
| % o magic: A binary string generally representing the first few characters |
| % of the image file or blob. |
| % |
| % o length: the length of the binary signature. |
| % |
| % o exception: return any errors or warnings in this structure. |
| % |
| */ |
| MagickExport const MimeInfo *GetMimeInfo(const char *filename, |
| const unsigned char *magic,const size_t length,ExceptionInfo *exception) |
| { |
| const MimeInfo |
| *mime_info; |
| |
| EndianType |
| endian; |
| |
| register const MimeInfo |
| *p; |
| |
| register const unsigned char |
| *q; |
| |
| register ssize_t |
| i; |
| |
| size_t |
| lsb_first; |
| |
| ssize_t |
| value; |
| |
| assert(exception != (ExceptionInfo *) NULL); |
| if ((mime_list == (LinkedListInfo *) NULL) || |
| (instantiate_mime == MagickFalse)) |
| if (InitializeMimeList(exception) == MagickFalse) |
| return((const MimeInfo *) NULL); |
| if ((mime_list == (LinkedListInfo *) NULL) || |
| (IsLinkedListEmpty(mime_list) != MagickFalse)) |
| return((const MimeInfo *) NULL); |
| if ((magic == (const unsigned char *) NULL) || (length == 0)) |
| return((const MimeInfo *) GetValueFromLinkedList(mime_list,0)); |
| if (length == 0) |
| return((const MimeInfo *) NULL); |
| /* |
| Search for mime tag. |
| */ |
| mime_info=(const MimeInfo *) NULL; |
| lsb_first=1; |
| LockSemaphoreInfo(mime_semaphore); |
| ResetLinkedListIterator(mime_list); |
| p=(const MimeInfo *) GetNextValueInLinkedList(mime_list); |
| while (p != (const MimeInfo *) NULL) |
| { |
| assert(p->offset >= 0); |
| if (mime_info != (const MimeInfo *) NULL) |
| if (p->priority > mime_info->priority) |
| { |
| p=(const MimeInfo *) GetNextValueInLinkedList(mime_list); |
| continue; |
| } |
| if ((p->pattern != (char *) NULL) && (filename != (char *) NULL)) |
| { |
| if (GlobExpression(filename,p->pattern,MagickFalse) != MagickFalse) |
| mime_info=p; |
| p=(const MimeInfo *) GetNextValueInLinkedList(mime_list); |
| continue; |
| } |
| switch (p->data_type) |
| { |
| case ByteData: |
| { |
| if ((size_t) (p->offset+4) > length) |
| break; |
| q=magic+p->offset; |
| value=(ssize_t) (*q++); |
| if (p->mask == 0) |
| { |
| if (p->value == value) |
| mime_info=p; |
| } |
| else |
| { |
| if ((p->value & p->mask) == value) |
| mime_info=p; |
| } |
| break; |
| } |
| case ShortData: |
| { |
| if ((size_t) (p->offset+4) > length) |
| break; |
| q=magic+p->offset; |
| endian=p->endian; |
| if (p->endian == UndefinedEndian) |
| endian=(*(char *) &lsb_first) == 1 ? LSBEndian : MSBEndian; |
| if (endian == LSBEndian) |
| { |
| value=(ssize_t) (*q++); |
| value|=(*q++) << 8; |
| } |
| else |
| { |
| value=(ssize_t) (*q++) << 8; |
| value|=(*q++); |
| } |
| if (p->mask == 0) |
| { |
| if (p->value == value) |
| mime_info=p; |
| } |
| else |
| { |
| if ((p->value & p->mask) == value) |
| mime_info=p; |
| } |
| break; |
| } |
| case LongData: |
| { |
| if ((size_t) (p->offset+4) > length) |
| break; |
| q=magic+p->offset; |
| endian=p->endian; |
| if (p->endian == UndefinedEndian) |
| endian=(*(char *) &lsb_first) == 1 ? LSBEndian : MSBEndian; |
| if (endian == LSBEndian) |
| { |
| value=(ssize_t) (*q++); |
| value|=(*q++) << 8; |
| value|=(*q++) << 16; |
| value|=(*q++) << 24; |
| } |
| else |
| { |
| value=(ssize_t) (*q++) << 24; |
| value|=(*q++) << 16; |
| value|=(*q++) << 8; |
| value|=(*q++); |
| } |
| if (p->mask == 0) |
| { |
| if (p->value == value) |
| mime_info=p; |
| } |
| else |
| { |
| if ((p->value & p->mask) == value) |
| mime_info=p; |
| } |
| break; |
| } |
| case StringData: |
| default: |
| { |
| for (i=0; i <= (ssize_t) p->extent; i++) |
| { |
| if ((size_t) (p->offset+i+p->length) > length) |
| break; |
| if (memcmp(magic+p->offset+i,p->magic,p->length) == 0) |
| { |
| mime_info=p; |
| break; |
| } |
| } |
| break; |
| } |
| } |
| p=(const MimeInfo *) GetNextValueInLinkedList(mime_list); |
| } |
| if (p != (const MimeInfo *) NULL) |
| (void) InsertValueInLinkedList(mime_list,0, |
| RemoveElementByValueFromLinkedList(mime_list,p)); |
| UnlockSemaphoreInfo(mime_semaphore); |
| return(mime_info); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % G e t M i m e I n f o L i s t % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % GetMimeInfoList() returns any image aliases that match the specified |
| % pattern. |
| % |
| % The magic of the GetMimeInfoList function is: |
| % |
| % const MimeInfo **GetMimeInfoList(const char *pattern, |
| % size_t *number_aliases,ExceptionInfo *exception) |
| % |
| % A description of each parameter follows: |
| % |
| % o pattern: Specifies a pointer to a text string containing a pattern. |
| % |
| % o number_aliases: This integer returns the number of magics in the |
| % list. |
| % |
| % o exception: return any errors or warnings in this structure. |
| % |
| */ |
| |
| #if defined(__cplusplus) || defined(c_plusplus) |
| extern "C" { |
| #endif |
| |
| static int MimeInfoCompare(const void *x,const void *y) |
| { |
| const MimeInfo |
| **p, |
| **q; |
| |
| p=(const MimeInfo **) x, |
| q=(const MimeInfo **) y; |
| if (strcasecmp((*p)->path,(*q)->path) == 0) |
| return(strcasecmp((*p)->type,(*q)->type)); |
| return(strcasecmp((*p)->path,(*q)->path)); |
| } |
| |
| #if defined(__cplusplus) || defined(c_plusplus) |
| } |
| #endif |
| |
| MagickExport const MimeInfo **GetMimeInfoList(const char *pattern, |
| size_t *number_aliases,ExceptionInfo *exception) |
| { |
| const MimeInfo |
| **aliases; |
| |
| register const MimeInfo |
| *p; |
| |
| register ssize_t |
| i; |
| |
| /* |
| Allocate mime list. |
| */ |
| assert(pattern != (char *) NULL); |
| (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",pattern); |
| assert(number_aliases != (size_t *) NULL); |
| *number_aliases=0; |
| p=GetMimeInfo((char *) NULL,(unsigned char *) "*",0,exception); |
| if (p == (const MimeInfo *) NULL) |
| return((const MimeInfo **) NULL); |
| aliases=(const MimeInfo **) AcquireQuantumMemory((size_t) |
| GetNumberOfElementsInLinkedList(mime_list)+1UL,sizeof(*aliases)); |
| if (aliases == (const MimeInfo **) NULL) |
| return((const MimeInfo **) NULL); |
| /* |
| Generate mime list. |
| */ |
| LockSemaphoreInfo(mime_semaphore); |
| ResetLinkedListIterator(mime_list); |
| p=(const MimeInfo *) GetNextValueInLinkedList(mime_list); |
| for (i=0; p != (const MimeInfo *) NULL; ) |
| { |
| if ((p->stealth == MagickFalse) && |
| (GlobExpression(p->type,pattern,MagickFalse) != MagickFalse)) |
| aliases[i++]=p; |
| p=(const MimeInfo *) GetNextValueInLinkedList(mime_list); |
| } |
| UnlockSemaphoreInfo(mime_semaphore); |
| qsort((void *) aliases,(size_t) i,sizeof(*aliases),MimeInfoCompare); |
| aliases[i]=(MimeInfo *) NULL; |
| *number_aliases=(size_t) i; |
| return(aliases); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % G e t M i m e L i s t % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % GetMimeList() returns any image format alias that matches the specified |
| % pattern. |
| % |
| % The format of the GetMimeList function is: |
| % |
| % char **GetMimeList(const char *pattern,size_t *number_aliases, |
| % ExceptionInfo *exception) |
| % |
| % A description of each parameter follows: |
| % |
| % o pattern: Specifies a pointer to a text string containing a pattern. |
| % |
| % o number_aliases: This integer returns the number of image format aliases |
| % in the list. |
| % |
| % o exception: return any errors or warnings in this structure. |
| % |
| */ |
| |
| #if defined(__cplusplus) || defined(c_plusplus) |
| extern "C" { |
| #endif |
| |
| static int MimeCompare(const void *x,const void *y) |
| { |
| register char |
| *p, |
| *q; |
| |
| p=(char *) x; |
| q=(char *) y; |
| return(strcasecmp(p,q)); |
| } |
| |
| #if defined(__cplusplus) || defined(c_plusplus) |
| } |
| #endif |
| |
| MagickExport char **GetMimeList(const char *pattern, |
| size_t *number_aliases,ExceptionInfo *exception) |
| { |
| char |
| **aliases; |
| |
| register const MimeInfo |
| *p; |
| |
| register ssize_t |
| i; |
| |
| /* |
| Allocate configure list. |
| */ |
| assert(pattern != (char *) NULL); |
| (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",pattern); |
| assert(number_aliases != (size_t *) NULL); |
| *number_aliases=0; |
| p=GetMimeInfo((char *) NULL,(unsigned char *) "*",0,exception); |
| if (p == (const MimeInfo *) NULL) |
| return((char **) NULL); |
| aliases=(char **) AcquireQuantumMemory((size_t) |
| GetNumberOfElementsInLinkedList(mime_list)+1UL,sizeof(*aliases)); |
| if (aliases == (char **) NULL) |
| return((char **) NULL); |
| LockSemaphoreInfo(mime_semaphore); |
| ResetLinkedListIterator(mime_list); |
| p=(const MimeInfo *) GetNextValueInLinkedList(mime_list); |
| for (i=0; p != (const MimeInfo *) NULL; ) |
| { |
| if ((p->stealth == MagickFalse) && |
| (GlobExpression(p->type,pattern,MagickFalse) != MagickFalse)) |
| aliases[i++]=ConstantString(p->type); |
| p=(const MimeInfo *) GetNextValueInLinkedList(mime_list); |
| } |
| UnlockSemaphoreInfo(mime_semaphore); |
| qsort((void *) aliases,(size_t) i,sizeof(*aliases),MimeCompare); |
| aliases[i]=(char *) NULL; |
| *number_aliases=(size_t) i; |
| return(aliases); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % G e t M i m e D e s c r i p t i o n % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % GetMimeDescription() returns the mime type description. |
| % |
| % The format of the GetMimeDescription method is: |
| % |
| % const char *GetMimeDescription(const MimeInfo *mime_info) |
| % |
| % A description of each parameter follows: |
| % |
| % o mime_info: The magic info. |
| % |
| */ |
| MagickExport const char *GetMimeDescription(const MimeInfo *mime_info) |
| { |
| (void) LogMagickEvent(TraceEvent,GetMagickModule(),"..."); |
| assert(mime_info != (MimeInfo *) NULL); |
| assert(mime_info->signature == MagickSignature); |
| return(mime_info->description); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % G e t M i m e T y p e % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % GetMimeType() returns the mime type. |
| % |
| % The format of the GetMimeType method is: |
| % |
| % const char *GetMimeType(const MimeInfo *mime_info) |
| % |
| % A description of each parameter follows: |
| % |
| % o mime_info: The magic info. |
| % |
| */ |
| MagickExport const char *GetMimeType(const MimeInfo *mime_info) |
| { |
| (void) LogMagickEvent(TraceEvent,GetMagickModule(),"..."); |
| assert(mime_info != (MimeInfo *) NULL); |
| assert(mime_info->signature == MagickSignature); |
| return(mime_info->type); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| + I n i t i a l i z e M i m e L i s t % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % InitializeMimeList() initializes the mime list. |
| % |
| % The format of the InitializeMimeList method is: |
| % |
| % MagickBooleanType InitializeMimeList(ExceptionInfo *exception) |
| % |
| % A description of each parameter follows. |
| % |
| % o exception: return any errors or warnings in this structure. |
| % |
| */ |
| static MagickBooleanType InitializeMimeList(ExceptionInfo *exception) |
| { |
| if ((mime_list == (LinkedListInfo *) NULL) && |
| (instantiate_mime == MagickFalse)) |
| { |
| if (mime_semaphore == (SemaphoreInfo *) NULL) |
| AcquireSemaphoreInfo(&mime_semaphore); |
| LockSemaphoreInfo(mime_semaphore); |
| if ((mime_list == (LinkedListInfo *) NULL) && |
| (instantiate_mime == MagickFalse)) |
| { |
| (void) LoadMimeLists(MimeFilename,exception); |
| instantiate_mime=MagickTrue; |
| } |
| UnlockSemaphoreInfo(mime_semaphore); |
| } |
| return(mime_list != (LinkedListInfo *) NULL ? MagickTrue : MagickFalse); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % L i s t M i m e I n f o % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % ListMimeInfo() lists the magic info to a file. |
| % |
| % The format of the ListMimeInfo method is: |
| % |
| % MagickBooleanType ListMimeInfo(FILE *file,ExceptionInfo *exception) |
| % |
| % A description of each parameter follows. |
| % |
| % o file: An pointer to a FILE. |
| % |
| % o exception: return any errors or warnings in this structure. |
| % |
| */ |
| MagickExport MagickBooleanType ListMimeInfo(FILE *file,ExceptionInfo *exception) |
| { |
| const char |
| *path; |
| |
| const MimeInfo |
| **mime_info; |
| |
| register ssize_t |
| i; |
| |
| size_t |
| number_aliases; |
| |
| ssize_t |
| j; |
| |
| if (file == (const FILE *) NULL) |
| file=stdout; |
| mime_info=GetMimeInfoList("*",&number_aliases,exception); |
| if (mime_info == (const MimeInfo **) NULL) |
| return(MagickFalse); |
| j=0; |
| path=(const char *) NULL; |
| for (i=0; i < (ssize_t) number_aliases; i++) |
| { |
| if (mime_info[i]->stealth != MagickFalse) |
| continue; |
| if ((path == (const char *) NULL) || |
| (strcasecmp(path,mime_info[i]->path) != 0)) |
| { |
| if (mime_info[i]->path != (char *) NULL) |
| (void) FormatLocaleFile(file,"\nPath: %s\n\n",mime_info[i]->path); |
| (void) FormatLocaleFile(file,"Type Description\n"); |
| (void) FormatLocaleFile(file, |
| "-------------------------------------------------" |
| "------------------------------\n"); |
| } |
| path=mime_info[i]->path; |
| (void) FormatLocaleFile(file,"%s",mime_info[i]->type); |
| if (strlen(mime_info[i]->type) <= 25) |
| { |
| for (j=(ssize_t) strlen(mime_info[i]->type); j <= 27; j++) |
| (void) FormatLocaleFile(file," "); |
| } |
| else |
| { |
| (void) FormatLocaleFile(file,"\n"); |
| for (j=0; j <= 27; j++) |
| (void) FormatLocaleFile(file," "); |
| } |
| if (mime_info[i]->description != (char *) NULL) |
| (void) FormatLocaleFile(file,"%s",mime_info[i]->description); |
| (void) FormatLocaleFile(file,"\n"); |
| } |
| (void) fflush(file); |
| mime_info=(const MimeInfo **) RelinquishMagickMemory((void *) mime_info); |
| return(MagickTrue); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| + L o a d M i m e L i s t % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % LoadMimeList() loads the magic configuration file which provides a mapping |
| % between magic attributes and a magic name. |
| % |
| % The format of the LoadMimeList method is: |
| % |
| % MagickBooleanType LoadMimeList(const char *xml,const char *filename, |
| % const size_t depth,ExceptionInfo *exception) |
| % |
| % A description of each parameter follows: |
| % |
| % o xml: The mime list in XML format. |
| % |
| % o filename: The mime list filename. |
| % |
| % o depth: depth of <include /> statements. |
| % |
| % o exception: return any errors or warnings in this structure. |
| % |
| */ |
| static MagickBooleanType LoadMimeList(const char *xml,const char *filename, |
| const size_t depth,ExceptionInfo *exception) |
| { |
| const char |
| *attribute; |
| |
| MimeInfo |
| *mime_info = (MimeInfo *) NULL; |
| |
| MagickBooleanType |
| status; |
| |
| XMLTreeInfo |
| *mime, |
| *mime_map, |
| *include; |
| |
| /* |
| Load the mime map file. |
| */ |
| (void) LogMagickEvent(ConfigureEvent,GetMagickModule(), |
| "Loading mime map \"%s\" ...",filename); |
| if (xml == (const char *) NULL) |
| return(MagickFalse); |
| if (mime_list == (LinkedListInfo *) NULL) |
| { |
| mime_list=NewLinkedList(0); |
| if (mime_list == (LinkedListInfo *) NULL) |
| { |
| ThrowFileException(exception,ResourceLimitError, |
| "MemoryAllocationFailed",filename); |
| return(MagickFalse); |
| } |
| } |
| mime_map=NewXMLTree(xml,exception); |
| if (mime_map == (XMLTreeInfo *) NULL) |
| return(MagickFalse); |
| status=MagickTrue; |
| include=GetXMLTreeChild(mime_map,"include"); |
| while (include != (XMLTreeInfo *) NULL) |
| { |
| /* |
| Process include element. |
| */ |
| attribute=GetXMLTreeAttribute(include,"file"); |
| if (attribute != (const char *) NULL) |
| { |
| if (depth > 200) |
| (void) ThrowMagickException(exception,GetMagickModule(), |
| ConfigureError,"IncludeElementNestedTooDeeply","'%s'",filename); |
| else |
| { |
| char |
| path[MaxTextExtent], |
| *xml; |
| |
| GetPathComponent(filename,HeadPath,path); |
| if (*path != '\0') |
| (void) ConcatenateMagickString(path,DirectorySeparator, |
| MaxTextExtent); |
| if (*attribute == *DirectorySeparator) |
| (void) CopyMagickString(path,attribute,MaxTextExtent); |
| else |
| (void) ConcatenateMagickString(path,attribute,MaxTextExtent); |
| xml=FileToString(path,~0,exception); |
| if (xml != (char *) NULL) |
| { |
| status=LoadMimeList(xml,path,depth+1,exception); |
| xml=DestroyString(xml); |
| } |
| } |
| } |
| include=GetNextXMLTreeTag(include); |
| } |
| mime=GetXMLTreeChild(mime_map,"mime"); |
| while (mime != (XMLTreeInfo *) NULL) |
| { |
| const char |
| *attribute; |
| |
| /* |
| Process mime element. |
| */ |
| mime_info=(MimeInfo *) AcquireMagickMemory(sizeof(*mime_info)); |
| if (mime_info == (MimeInfo *) NULL) |
| ThrowFatalException(ResourceLimitFatalError,"MemoryAllocationFailed"); |
| (void) ResetMagickMemory(mime_info,0,sizeof(*mime_info)); |
| mime_info->path=ConstantString(filename); |
| mime_info->signature=MagickSignature; |
| attribute=GetXMLTreeAttribute(mime,"data-type"); |
| if (attribute != (const char *) NULL) |
| mime_info->data_type=(DataType) ParseCommandOption(MagickDataTypeOptions, |
| MagickTrue,attribute); |
| attribute=GetXMLTreeAttribute(mime,"description"); |
| if (attribute != (const char *) NULL) |
| mime_info->description=ConstantString(attribute); |
| attribute=GetXMLTreeAttribute(mime,"endian"); |
| if (attribute != (const char *) NULL) |
| mime_info->endian=(EndianType) ParseCommandOption(MagickEndianOptions, |
| MagickTrue,attribute); |
| attribute=GetXMLTreeAttribute(mime,"magic"); |
| if (attribute != (const char *) NULL) |
| { |
| char |
| *token; |
| |
| const char |
| *p; |
| |
| register unsigned char |
| *q; |
| |
| token=AcquireString(attribute); |
| (void) SubstituteString((char **) &token,"<","<"); |
| (void) SubstituteString((char **) &token,"&","&"); |
| (void) SubstituteString((char **) &token,""","\""); |
| mime_info->magic=(unsigned char *) AcquireString(token); |
| q=mime_info->magic; |
| for (p=token; *p != '\0'; ) |
| { |
| if (*p == '\\') |
| { |
| p++; |
| if (isdigit((int) ((unsigned char) *p)) != 0) |
| { |
| char |
| *end; |
| |
| *q++=(unsigned char) strtol(p,&end,8); |
| p+=(end-p); |
| mime_info->length++; |
| continue; |
| } |
| switch (*p) |
| { |
| case 'b': *q='\b'; break; |
| case 'f': *q='\f'; break; |
| case 'n': *q='\n'; break; |
| case 'r': *q='\r'; break; |
| case 't': *q='\t'; break; |
| case 'v': *q='\v'; break; |
| case 'a': *q='a'; break; |
| case '?': *q='\?'; break; |
| default: *q=(unsigned char) (*p); break; |
| } |
| p++; |
| q++; |
| mime_info->length++; |
| continue; |
| } |
| *q++=(unsigned char) (*p++); |
| mime_info->length++; |
| } |
| token=DestroyString(token); |
| if (mime_info->data_type != StringData) |
| mime_info->value=(ssize_t) strtoul((char *) mime_info->magic, |
| (char **) NULL,0); |
| } |
| attribute=GetXMLTreeAttribute(mime,"mask"); |
| if (attribute != (const char *) NULL) |
| mime_info->mask=(ssize_t) strtoul(attribute,(char **) NULL,0); |
| attribute=GetXMLTreeAttribute(mime,"offset"); |
| if (attribute != (const char *) NULL) |
| { |
| char |
| *c; |
| |
| mime_info->offset=(MagickOffsetType) strtol(attribute,&c,0); |
| if (*c == ':') |
| mime_info->extent=(size_t) strtol(c+1,(char **) NULL,0); |
| } |
| attribute=GetXMLTreeAttribute(mime,"pattern"); |
| if (attribute != (const char *) NULL) |
| mime_info->pattern=ConstantString(attribute); |
| attribute=GetXMLTreeAttribute(mime,"priority"); |
| if (attribute != (const char *) NULL) |
| mime_info->priority=(ssize_t) strtol(attribute,(char **) NULL,0); |
| attribute=GetXMLTreeAttribute(mime,"stealth"); |
| mime_info->stealth=IsStringTrue(attribute); |
| attribute=GetXMLTreeAttribute(mime,"type"); |
| if (attribute != (const char *) NULL) |
| mime_info->type=ConstantString(attribute); |
| status=AppendValueToLinkedList(mime_list,mime_info); |
| if (status == MagickFalse) |
| (void) ThrowMagickException(exception,GetMagickModule(), |
| ResourceLimitError,"MemoryAllocationFailed","'%s'",filename); |
| mime=GetNextXMLTreeTag(mime); |
| } |
| mime_map=DestroyXMLTree(mime_map); |
| return(status); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % L o a d M i m e L i s t s % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % LoadMimeList() loads one or more magic configuration file which provides a |
| % mapping between magic attributes and a magic name. |
| % |
| % The format of the LoadMimeLists method is: |
| % |
| % MagickBooleanType LoadMimeLists(const char *filename, |
| % ExceptionInfo *exception) |
| % |
| % A description of each parameter follows: |
| % |
| % o filename: the font file name. |
| % |
| % o exception: return any errors or warnings in this structure. |
| % |
| */ |
| MagickExport MagickBooleanType LoadMimeLists(const char *filename, |
| ExceptionInfo *exception) |
| { |
| #if defined(MAGICKCORE_ZERO_CONFIGURATION_SUPPORT) |
| return(LoadMimeList(MimeMap,"built-in",0,exception)); |
| #else |
| const StringInfo |
| *option; |
| |
| LinkedListInfo |
| *options; |
| |
| MagickStatusType |
| status; |
| |
| status=MagickFalse; |
| options=GetConfigureOptions(filename,exception); |
| option=(const StringInfo *) GetNextValueInLinkedList(options); |
| while (option != (const StringInfo *) NULL) |
| { |
| status|=LoadMimeList((const char *) GetStringInfoDatum(option), |
| GetStringInfoPath(option),0,exception); |
| option=(const StringInfo *) GetNextValueInLinkedList(options); |
| } |
| options=DestroyConfigureOptions(options); |
| if ((mime_list == (LinkedListInfo *) NULL) || |
| (IsLinkedListEmpty(mime_list) != MagickFalse)) |
| status|=LoadMimeList(MimeMap,"built-in",0,exception); |
| else |
| ClearMagickException(exception); |
| return(status != 0 ? MagickTrue : MagickFalse); |
| #endif |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| + M a g i c k T o M i m e % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % MagickToMime() returns the officially registered (or de facto) MIME |
| % media-type corresponding to a magick string. If there is no registered |
| % media-type, then the string "image/x-magick" (all lower case) is returned. |
| % The returned string must be deallocated by the user. |
| % |
| % The format of the MagickToMime method is: |
| % |
| % char *MagickToMime(const char *magick) |
| % |
| % A description of each parameter follows. |
| % |
| % o magick: ImageMagick format specification "magick" tag. |
| % |
| */ |
| MagickExport char *MagickToMime(const char *magick) |
| { |
| char |
| filename[MaxTextExtent], |
| media[MaxTextExtent]; |
| |
| const MimeInfo |
| *mime_info; |
| |
| ExceptionInfo |
| *exception; |
| |
| (void) FormatLocaleString(filename,MaxTextExtent,"file.%s",magick); |
| LocaleLower(filename); |
| exception=AcquireExceptionInfo(); |
| mime_info=GetMimeInfo(filename,(unsigned char *) " ",1,exception); |
| exception=DestroyExceptionInfo(exception); |
| if (mime_info != (const MimeInfo *) NULL) |
| return(ConstantString(GetMimeType(mime_info))); |
| (void) FormatLocaleString(media,MaxTextExtent,"image/x-%s",magick); |
| LocaleLower(media+8); |
| return(ConstantString(media)); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| + M i m e C o m p o n e n t G e n e s i s % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % MimeComponentGenesis() instantiates the mime component. |
| % |
| % The format of the MimeComponentGenesis method is: |
| % |
| % MagickBooleanType MimeComponentGenesis(void) |
| % |
| */ |
| MagickPrivate MagickBooleanType MimeComponentGenesis(void) |
| { |
| AcquireSemaphoreInfo(&mime_semaphore); |
| return(MagickTrue); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| + M i m e C o m p o n e n t T e r m i n u s % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % MimeComponentTerminus() destroys the mime component. |
| % |
| % The format of the MimeComponentTerminus method is: |
| % |
| % MimeComponentTerminus(void) |
| % |
| */ |
| |
| static void *DestroyMimeElement(void *mime_info) |
| { |
| register MimeInfo |
| *p; |
| |
| p=(MimeInfo *) mime_info; |
| if (p->magic != (unsigned char *) NULL) |
| p->magic=(unsigned char *) RelinquishMagickMemory(p->magic); |
| if (p->pattern != (char *) NULL) |
| p->pattern=DestroyString(p->pattern); |
| if (p->description != (char *) NULL) |
| p->description=DestroyString(p->description); |
| if (p->type != (char *) NULL) |
| p->type=DestroyString(p->type); |
| if (p->path != (char *) NULL) |
| p->path=DestroyString(p->path); |
| p=(MimeInfo *) RelinquishMagickMemory(p); |
| return((void *) NULL); |
| } |
| |
| MagickPrivate void MimeComponentTerminus(void) |
| { |
| if (mime_semaphore == (SemaphoreInfo *) NULL) |
| AcquireSemaphoreInfo(&mime_semaphore); |
| LockSemaphoreInfo(mime_semaphore); |
| if (mime_list != (LinkedListInfo *) NULL) |
| mime_list=DestroyLinkedList(mime_list,DestroyMimeElement); |
| instantiate_mime=MagickFalse; |
| UnlockSemaphoreInfo(mime_semaphore); |
| DestroySemaphoreInfo(&mime_semaphore); |
| } |