/*
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% %
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% A c q u i r e M i m e C a c h e %
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%
% AcquireMimeCache() caches one or more magic configurations which provides
% a mapping between magic attributes and a magic name.
%
% The format of the AcquireMimeCache method is:
%
% LinkedListInfo *AcquireMimeCache(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 LinkedListInfo *AcquireMimeCache(const char *filename,
ExceptionInfo *exception)
{
LinkedListInfo
*cache;
MagickStatusType
status;
cache=NewLinkedList(0);
status=MagickTrue;
#if !defined(MAGICKCORE_ZERO_CONFIGURATION_SUPPORT)
{
const StringInfo
*option;
LinkedListInfo
*options;
options=GetConfigureOptions(filename,exception);
option=(const StringInfo *) GetNextValueInLinkedList(options);
while (option != (const StringInfo *) NULL)
{
status&=LoadMimeCache(cache,(const char *)
GetStringInfoDatum(option),GetStringInfoPath(option),0,exception);
option=(const StringInfo *) GetNextValueInLinkedList(options);
}
options=DestroyConfigureOptions(options);
}
#endif
if (IsLinkedListEmpty(cache) != MagickFalse)
status&=LoadMimeCache(cache,MimeMap,"built-in",0,exception);
return(cache);
}
/*
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% %
% %
% %
% A c q u i r e M i m e C a c h e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% AcquireMimeCache() caches one or more magic configurations which provides
% a mapping between magic attributes and a magic name.
%
% The format of the AcquireMimeCache method is:
%
% LinkedListInfo *AcquireMimeCache(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.
%
*/
static LinkedListInfo *AcquireMimeCache(const char *filename,
ExceptionInfo *exception)
{
LinkedListInfo
*mime_cache;
MagickStatusType
status;
mime_cache=NewLinkedList(0);
if (mime_cache == (LinkedListInfo *) NULL)
ThrowFatalException(ResourceLimitFatalError,"MemoryAllocationFailed");
status=MagickTrue;
#if !defined(MAGICKCORE_ZERO_CONFIGURATION_SUPPORT)
{
const StringInfo
*option;
LinkedListInfo
*options;
options=GetConfigureOptions(filename,exception);
option=(const StringInfo *) GetNextValueInLinkedList(options);
while (option != (const StringInfo *) NULL)
{
status&=LoadMimeCache(mime_cache,(const char *)
GetStringInfoDatum(option),GetStringInfoPath(option),0,exception);
option=(const StringInfo *) GetNextValueInLinkedList(options);
}
options=DestroyConfigureOptions(options);
}
#endif
if (IsLinkedListEmpty(mime_cache) != MagickFalse)
status&=LoadMimeCache(mime_cache,MimeMap,"built-in",0,exception);
return(mime_cache);
}
/*
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% %
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+ L o a d M i m e C a c h e %
% %
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%
% LoadMimeCache() loads the mime configurations which provides a mapping
% between mime attributes and a mime name.
%
% The format of the LoadMimeCache method is:
%
% MagickBooleanType LoadMimeCache(LinkedListInfo *cache,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 LoadMimeCache(LinkedListInfo *cache,const char *xml,
const char *filename,const size_t depth,ExceptionInfo *exception)
{
const char
*attribute;
MimeInfo
*mime_info = (MimeInfo *) NULL;
MagickStatusType
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);
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[MagickPathExtent],
*file_xml;
GetPathComponent(filename,HeadPath,path);
if (*path != '\0')
(void) ConcatenateMagickString(path,DirectorySeparator,
MagickPathExtent);
if (*attribute == *DirectorySeparator)
(void) CopyMagickString(path,attribute,MagickPathExtent);
else
(void) ConcatenateMagickString(path,attribute,MagickPathExtent);
file_xml=FileToXML(path,~0UL);
if (file_xml != (char *) NULL)
{
status&=LoadMimeCache(cache,file_xml,path,depth+1,exception);
file_xml=DestroyString(file_xml);
}
}
}
include=GetNextXMLTreeTag(include);
}
mime=GetXMLTreeChild(mime_map,"mime");
while (mime != (XMLTreeInfo *) NULL)
{
/*
Process mime element.
*/
mime_info=(MimeInfo *) AcquireCriticalMemory(sizeof(*mime_info));
(void) ResetMagickMemory(mime_info,0,sizeof(*mime_info));
mime_info->path=ConstantString(filename);
mime_info->signature=MagickCoreSignature;
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");
if (attribute != (const char *) NULL)
mime_info->stealth=IsStringTrue(attribute);
attribute=GetXMLTreeAttribute(mime,"type");
if (attribute != (const char *) NULL)
mime_info->type=ConstantString(attribute);
status=AppendValueToLinkedList(cache,mime_info);
if (status == MagickFalse)
(void) ThrowMagickException(exception,GetMagickModule(),
ResourceLimitError,"MemoryAllocationFailed","`%s'",filename);
mime=GetNextXMLTreeTag(mime);
}
mime_map=DestroyXMLTree(mime_map);
return(status != 0 ? MagickTrue : MagickFalse);
}
