/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% DDDD EEEEE L EEEEE GGGG AAA TTTTT EEEEE %
% D D E L E G A A T E %
% D D EEE L EEE G GG AAAAA T EEE %
% D D E L E G G A A T E %
% DDDD EEEEE LLLLL EEEEE GGG A A T EEEEE %
% %
% %
% MagickCore Methods to Read/Write/Invoke Delegates %
% %
% Software Design %
% Cristy %
% October 1998 %
% %
% %
% Copyright 1999-2019 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 %
% %
% https://imagemagick.org/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. %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% The Delegates methods associate a set of commands with a particular
% image format. ImageMagick uses delegates for formats it does not handle
% directly.
%
% Thanks to Bob Friesenhahn for the initial inspiration and design of the
% delegates methods.
%
%
*/
/*
Include declarations.
*/
#include "MagickCore/studio.h"
#include "MagickCore/artifact.h"
#include "MagickCore/attribute.h"
#include "MagickCore/blob.h"
#include "MagickCore/client.h"
#include "MagickCore/configure.h"
#include "MagickCore/constitute.h"
#include "MagickCore/delegate.h"
#include "MagickCore/delegate-private.h"
#include "MagickCore/exception.h"
#include "MagickCore/exception-private.h"
#include "MagickCore/fx-private.h"
#include "MagickCore/image-private.h"
#include "MagickCore/linked-list.h"
#include "MagickCore/list.h"
#include "MagickCore/memory_.h"
#include "MagickCore/memory-private.h"
#include "MagickCore/nt-base-private.h"
#include "MagickCore/option.h"
#include "MagickCore/policy.h"
#include "MagickCore/property.h"
#include "MagickCore/resource_.h"
#include "MagickCore/semaphore.h"
#include "MagickCore/signature.h"
#include "MagickCore/string_.h"
#include "MagickCore/token.h"
#include "MagickCore/token-private.h"
#include "MagickCore/utility.h"
#include "MagickCore/utility-private.h"
#include "MagickCore/xml-tree.h"
#include "MagickCore/xml-tree-private.h"
/*
Define declarations.
*/
#define DelegateFilename "delegates.xml"
/*
Declare delegate map.
*/
static const char
*DelegateMap = (const char *)
"<?xml version=\"1.0\" encoding=\"UTF-8\"?>"
"<delegatemap>"
" <delegate decode=\"bpg\" command=\""bpgdec" -b 16 -o "%o.png" "%i"; mv "%o.png" "%o"\"/>"
" <delegate decode=\"png\" encode=\"bpg\" command=\""bpgenc" -b 12 -q %~ -o "%o" "%i"\"/>"
" <delegate decode=\"browse\" stealth=\"True\" spawn=\"True\" command=\""xdg-open" https://imagemagick.org/; rm "%i"\"/>"
" <delegate decode=\"cdr\" command=\""uniconvertor" "%i" "%o.svg"; mv "%o.svg" "%o"\"/>"
" <delegate decode=\"cgm\" command=\""uniconvertor" "%i" "%o.svg"; mv "%o.svg" "%o"\"/>"
" <delegate decode=\"https\" command=\""curl" -s -k -L -o "%o" "https:%M"\"/>"
" <delegate decode=\"doc\" command=\""soffice" --convert-to pdf -outdir `dirname "%i"` "%i" 2> "%u"; mv "%i.pdf" "%o"\"/>"
" <delegate decode=\"docx\" command=\""soffice" --convert-to pdf -outdir `dirname "%i"` "%i" 2> "%u"; mv "%i.pdf" "%o"\"/>"
" <delegate decode=\"dng:decode\" command=\""ufraw-batch" --silent --create-id=also --out-type=png --out-depth=16 "--output=%u.png" "%i"\"/>"
" <delegate decode=\"dot\" command=\""dot" -Tsvg "%i" -o "%o"\"/>"
" <delegate decode=\"dvi\" command=\""dvips" -sstdout=%%stderr -o "%o" "%i"\"/>"
" <delegate decode=\"dxf\" command=\""uniconvertor" "%i" "%o.svg"; mv "%o.svg" "%o"\"/>"
" <delegate decode=\"edit\" stealth=\"True\" command=\""xterm" -title "Edit Image Comment" -e vi "%o"\"/>"
" <delegate decode=\"eps\" encode=\"pdf\" mode=\"bi\" command=\""gs" -sstdout=%%stderr -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 "-sDEVICE=pdfwrite" "-sOutputFile=%o" "-f%i"\"/>"
" <delegate decode=\"eps\" encode=\"ps\" mode=\"bi\" command=\""gs" -sstdout=%%stderr -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dAlignToPixels=0 -dGridFitTT=2 "-sDEVICE=ps2write" "-sOutputFile=%o" "-f%i"\"/>"
" <delegate decode=\"fig\" command=\""uniconvertor" "%i" "%o.svg"; mv "%o.svg" "%o"\"/>"
" <delegate decode=\"hpg\" command=\""hp2xx" -sstdout=%%stderr -m eps -f `basename "%o"` "%i"; mv -f `basename "%o"` "%o"\"/>"
" <delegate decode=\"hpgl\" command=\""hp2xx" -sstdout=%%stderr -m eps -f `basename "%o"` "%i"; mv -f `basename "%o"` "%o"\"/>"
" <delegate decode=\"htm\" command=\""html2ps" -U -o "%o" "%i"\"/>"
" <delegate decode=\"html\" command=\""html2ps" -U -o "%o" "%i"\"/>"
" <delegate decode=\"ilbm\" command=\""ilbmtoppm" "%i" > "%o"\"/>"
" <delegate decode=\"jpg\" encode=\"lep\" mode=\"encode\" command=\""lepton" "%i" "%o"\"/>"
" <delegate decode=\"jxr\" command=\"mv "%i" "%i.jxr"; "JxrDecApp" -i "%i.jxr" -o "%o.pnm"; mv "%i.jxr" "%i"; mv "%o.pnm" "%o"\"/>"
" <delegate decode=\"lep\" mode=\"decode\" command=\""lepton" "%i" "%o"\"/>"
" <delegate decode=\"mpeg:decode\" command=\""avconv" -v -1 -i "%i" -vframes %S -vcodec pam -an -f rawvideo -y "%u.pam" 2> "%u"\"/>"
" <delegate decode=\"odt\" command=\""soffice" --convert-to pdf -outdir `dirname "%i"` "%i" 2> "%u"; mv "%i.pdf" "%o"\"/>"
" <delegate decode=\"pcl:cmyk\" stealth=\"True\" command=\""pcl6" -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dAlignToPixels=0 -dGridFitTT=2 "-sDEVICE=pamcmyk32" -dTextAlphaBits=%u -dGraphicsAlphaBits=%u "-r%s" %s "-sOutputFile=%s" "%s"\"/>"
" <delegate decode=\"pcl:color\" stealth=\"True\" command=\""pcl6" -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dAlignToPixels=0 -dGridFitTT=2 "-sDEVICE=ppmraw" -dTextAlphaBits=%u -dGraphicsAlphaBits=%u "-r%s" %s "-sOutputFile=%s" "%s"\"/>"
" <delegate decode=\"pcl:mono\" stealth=\"True\" command=\""pcl6" -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dAlignToPixels=0 -dGridFitTT=2 "-sDEVICE=pbmraw" -dTextAlphaBits=%u -dGraphicsAlphaBits=%u "-r%s" %s "-sOutputFile=%s" "%s"\"/>"
" <delegate decode=\"pdf\" encode=\"eps\" mode=\"bi\" command=\""gs" -sstdout=%%stderr -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dAlignToPixels=0 -dGridFitTT=2 -sPDFPassword="%a" "-sDEVICE=eps2write" "-sOutputFile=%o" "-f%i"\"/>"
" <delegate decode=\"pdf\" encode=\"ps\" mode=\"bi\" command=\""gs" -sstdout=%%stderr -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dAlignToPixels=0 -dGridFitTT=2 "-sDEVICE=ps2write" -sPDFPassword="%a" "-sOutputFile=%o" "-f%i"\"/>"
" <delegate decode=\"png\" encode=\"webp\" command=\""cwebp" -quiet -q %Q "%i" -o "%o"\"/>"
" <delegate decode=\"pnm\" encode=\"ilbm\" mode=\"encode\" command=\""ppmtoilbm" -24if "%i" > "%o"\"/>"
" <delegate decode=\"bmp\" encode=\"jxr\" command=\"mv "%i" "%i.bmp"; "JxrEncApp" -i "%i.bmp" -o "%o.jxr"; mv "%i.bmp" "%i"; mv "%o.jxr" "%o"\"/>"
" <delegate decode=\"bmp\" encode=\"wdp\" command=\"mv "%i" "%i.bmp"; "JxrEncApp" -i "%i.bmp" -o "%o.jxr"; mv "%i.bmp" "%i"; mv "%o.jxr" "%o"\"/>"
" <delegate decode=\"ppt\" command=\""soffice" --convert-to pdf -outdir `dirname "%i"` "%i" 2> "%u"; mv "%i.pdf" "%o"\"/>"
" <delegate decode=\"pptx\" command=\""soffice" --convert-to pdf -outdir `dirname "%i"` "%i" 2> "%u"; mv "%i.pdf" "%o"\"/>"
" <delegate decode=\"ps\" encode=\"prt\" command=\""lpr" "%i"\"/>"
" <delegate decode=\"ps:alpha\" stealth=\"True\" command=\""gs" -sstdout=%%stderr -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dAlignToPixels=0 -dGridFitTT=2 "-sDEVICE=pngalpha" -dTextAlphaBits=%u -dGraphicsAlphaBits=%u "-r%s" %s "-sOutputFile=%s" "-f%s" "-f%s"\"/>"
" <delegate decode=\"ps:cmyk\" stealth=\"True\" command=\""gs" -sstdout=%%stderr -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dAlignToPixels=0 -dGridFitTT=2 "-sDEVICE=pamcmyk32" -dTextAlphaBits=%u -dGraphicsAlphaBits=%u "-r%s" %s "-sOutputFile=%s" "-f%s" "-f%s"\"/>"
" <delegate decode=\"ps:color\" stealth=\"True\" command=\""gs" -sstdout=%%stderr -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dAlignToPixels=0 -dGridFitTT=2 "-sDEVICE=pnmraw" -dTextAlphaBits=%u -dGraphicsAlphaBits=%u "-r%s" %s "-sOutputFile=%s" "-f%s" "-f%s"\"/>"
" <delegate decode=\"ps\" encode=\"eps\" mode=\"bi\" command=\""gs" -sstdout=%%stderr -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dAlignToPixels=0 -dGridFitTT=2 "-sDEVICE=eps2write" "-sOutputFile=%o" "-f%i"\"/>"
" <delegate decode=\"ps\" encode=\"pdf\" mode=\"bi\" command=\""gs" -sstdout=%%stderr -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dAlignToPixels=0 -dGridFitTT=2 "-sDEVICE=pdfwrite" "-sOutputFile=%o" "-f%i"\"/>"
" <delegate decode=\"ps\" encode=\"print\" mode=\"encode\" command=\"lpr "%i"\"/>"
" <delegate decode=\"ps:mono\" stealth=\"True\" command=\""fs" -sstdout=%%stderr -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dAlignToPixels=0 -dGridFitTT=2 "-sDEVICE=pbmraw" -dTextAlphaBits=%u -dGraphicsAlphaBits=%u "-r%s" %s "-sOutputFile=%s" "-f%s" "-f%s"\"/>"
" <delegate decode=\"shtml\" command=\""html2ps" -U -o "%o" "%i"\"/>"
" <delegate decode=\"sid\" command=\""mrsidgeodecode" -if sid -i "%i" -of tif -o "%o" > "%u"\"/>"
" <delegate decode=\"svg\" command=\""rsvg-convert" -o "%o" "%i"\"/>"
" <delegate decode=\"svg:decode\" stealth=\"True\" command=\""inkscape" "%s" --export-png="%s" --export-dpi="%s" --export-background="%s" --export-background-opacity="%s" > "%s" 2>&1\"/>"
" <delegate decode=\"tiff\" encode=\"launch\" mode=\"encode\" command=\""gimp" "%i"\"/>"
" <delegate decode=\"wdp\" command=\"mv "%i" "%i.jxr"; "JxrDecApp" -i "%i.jxr" -o "%o.bmp"; mv "%i.jxr" "%i"; mv "%o.bmp" "%o"\"/>"
" <delegate decode=\"webp\" command=\""dwebp" -pam "%i" -o "%o"\"/>"
" <delegate decode=\"xls\" command=\""soffice" --convert-to pdf -outdir `dirname "%i"` "%i" 2> "%u"; mv "%i.pdf" "%o"\"/>"
" <delegate decode=\"xlsx\" command=\""soffice" --convert-to pdf -outdir `dirname "%i"` "%i" 2> "%u"; mv "%i.pdf" "%o"\"/>"
" <delegate decode=\"xps:cmyk\" stealth=\"True\" command=\""gxps" -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dAlignToPixels=0 -dGridFitTT=2 "-sDEVICE=bmpsep8" -dTextAlphaBits=%u -dGraphicsAlphaBits=%u "-r%s" %s "-sOutputFile=%s" "%s"\"/>"
" <delegate decode=\"xps:color\" stealth=\"True\" command=\""gxps" -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dAlignToPixels=0 -dGridFitTT=2 "-sDEVICE=ppmraw" -dTextAlphaBits=%u -dGraphicsAlphaBits=%u "-r%s" %s "-sOutputFile=%s" "%s"\"/>"
" <delegate decode=\"xps:mono\" stealth=\"True\" command=\""gxps" -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dAlignToPixels=0 -dGridFitTT=2 "-sDEVICE=pbmraw" -dTextAlphaBits=%u -dGraphicsAlphaBits=%u "-r%s" %s "-sOutputFile=%s" "%s"\"/>"
" <delegate encode=\"mpeg:encode\" stealth=\"True\" command=\""avconv" -v -1 -i "%M%%d.jpg" "%u.%m" 2> "%u"\"/>"
"</delegatemap>";
/*
Global declaractions.
*/
static LinkedListInfo
*delegate_cache = (LinkedListInfo *) NULL;
static SemaphoreInfo
*delegate_semaphore = (SemaphoreInfo *) NULL;
/*
Forward declaractions.
*/
static MagickBooleanType
IsDelegateCacheInstantiated(ExceptionInfo *),
LoadDelegateCache(LinkedListInfo *,const char *,const char *,const size_t,
ExceptionInfo *);
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% A c q u i r e D e l e g a t e C a c h e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% AcquireDelegateCache() caches one or more delegate configurations which
% provides a mapping between delegate attributes and a delegate name.
%
% The format of the AcquireDelegateCache method is:
%
% LinkedListInfo *AcquireDelegateCache(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 *AcquireDelegateCache(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&=LoadDelegateCache(cache,(const char *)
GetStringInfoDatum(option),GetStringInfoPath(option),0,exception);
option=(const StringInfo *) GetNextValueInLinkedList(options);
}
options=DestroyConfigureOptions(options);
}
#endif
if (IsLinkedListEmpty(cache) != MagickFalse)
status&=LoadDelegateCache(cache,DelegateMap,"built-in",0,exception);
return(cache);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
+ D e l e g a t e C o m p o n e n t G e n e s i s %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DelegateComponentGenesis() instantiates the delegate component.
%
% The format of the DelegateComponentGenesis method is:
%
% MagickBooleanType DelegateComponentGenesis(void)
%
*/
MagickPrivate MagickBooleanType DelegateComponentGenesis(void)
{
if (delegate_semaphore == (SemaphoreInfo *) NULL)
delegate_semaphore=AcquireSemaphoreInfo();
return(MagickTrue);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D e l e g a t e C o m p o n e n t T e r m i n u s %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DelegateComponentTerminus() destroys the delegate component.
%
% The format of the DelegateComponentTerminus method is:
%
% DelegateComponentTerminus(void)
%
*/
static void *DestroyDelegate(void *delegate_info)
{
register DelegateInfo
*p;
p=(DelegateInfo *) delegate_info;
if (p->path != (char *) NULL)
p->path=DestroyString(p->path);
if (p->decode != (char *) NULL)
p->decode=DestroyString(p->decode);
if (p->encode != (char *) NULL)
p->encode=DestroyString(p->encode);
if (p->commands != (char *) NULL)
p->commands=DestroyString(p->commands);
if (p->semaphore != (SemaphoreInfo *) NULL)
RelinquishSemaphoreInfo(&p->semaphore);
p=(DelegateInfo *) RelinquishMagickMemory(p);
return((void *) NULL);
}
MagickPrivate void DelegateComponentTerminus(void)
{
if (delegate_semaphore == (SemaphoreInfo *) NULL)
ActivateSemaphoreInfo(&delegate_semaphore);
LockSemaphoreInfo(delegate_semaphore);
if (delegate_cache != (LinkedListInfo *) NULL)
delegate_cache=DestroyLinkedList(delegate_cache,DestroyDelegate);
UnlockSemaphoreInfo(delegate_semaphore);
RelinquishSemaphoreInfo(&delegate_semaphore);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
+ E x t e r n a l D e l e g a t e C o m m a n d %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% ExternalDelegateCommand() executes the specified command and waits until it
% terminates. The returned value is the exit status of the command.
%
% The format of the ExternalDelegateCommand method is:
%
% int ExternalDelegateCommand(const MagickBooleanType asynchronous,
% const MagickBooleanType verbose,const char *command,
% char *message,ExceptionInfo *exception)
%
% A description of each parameter follows:
%
% o asynchronous: a value other than 0 executes the parent program
% concurrently with the new child process.
%
% o verbose: a value other than 0 prints the executed command before it is
% invoked.
%
% o command: this string is the command to execute.
%
% o message: an option buffer to receive any message posted to stdout or
% stderr.
%
% o exception: return any errors here.
%
*/
MagickExport int ExternalDelegateCommand(const MagickBooleanType asynchronous,
const MagickBooleanType verbose,const char *command,char *message,
ExceptionInfo *exception)
{
char
**arguments,
*sanitize_command;
int
number_arguments,
status;
PolicyDomain
domain;
PolicyRights
rights;
register ssize_t
i;
status=(-1);
arguments=StringToArgv(command,&number_arguments);
if (arguments == (char **) NULL)
return(status);
if (*arguments[1] == '\0')
{
for (i=0; i < (ssize_t) number_arguments; i++)
arguments[i]=DestroyString(arguments[i]);
arguments=(char **) RelinquishMagickMemory(arguments);
return(-1);
}
rights=ExecutePolicyRights;
domain=DelegatePolicyDomain;
if (IsRightsAuthorized(domain,rights,arguments[1]) == MagickFalse)
{
errno=EPERM;
(void) ThrowMagickException(exception,GetMagickModule(),PolicyError,
"NotAuthorized","`%s'",arguments[1]);
for (i=0; i < (ssize_t) number_arguments; i++)
arguments[i]=DestroyString(arguments[i]);
arguments=(char **) RelinquishMagickMemory(arguments);
return(-1);
}
if (verbose != MagickFalse)
{
(void) FormatLocaleFile(stderr,"%s\n",command);
(void) fflush(stderr);
}
sanitize_command=SanitizeString(command);
if (asynchronous != MagickFalse)
(void) ConcatenateMagickString(sanitize_command,"&",MagickPathExtent);
if (message != (char *) NULL)
*message='\0';
#if defined(MAGICKCORE_POSIX_SUPPORT)
#if !defined(MAGICKCORE_HAVE_EXECVP)
status=system(sanitize_command);
#else
if ((asynchronous != MagickFalse) ||
(strpbrk(sanitize_command,"&;<>|") != (char *) NULL))
status=system(sanitize_command);
else
{
pid_t
child_pid;
/*
Call application directly rather than from a shell.
*/
child_pid=(pid_t) fork();
if (child_pid == (pid_t) -1)
status=system(sanitize_command);
else
if (child_pid == 0)
{
status=execvp(arguments[1],arguments+1);
_exit(1);
}
else
{
int
child_status;
pid_t
pid;
child_status=0;
pid=(pid_t) waitpid(child_pid,&child_status,0);
if (pid == -1)
status=(-1);
else
{
if (WIFEXITED(child_status) != 0)
status=WEXITSTATUS(child_status);
else
if (WIFSIGNALED(child_status))
status=(-1);
}
}
}
#endif
#elif defined(MAGICKCORE_WINDOWS_SUPPORT)
{
register char
*p;
/*
If a command shell is executed we need to change the forward slashes in
files to a backslash. We need to do this to keep Windows happy when we
want to 'move' a file.
TODO: This won't work if one of the delegate parameters has a forward
slash as aparameter.
*/
p=strstr(sanitize_command, "cmd.exe /c");
if (p != (char*) NULL)
{
p+=10;
for (; *p != '\0'; p++)
if (*p == '/')
*p=*DirectorySeparator;
}
}
status=NTSystemCommand(sanitize_command,message);
#elif defined(macintosh)
status=MACSystemCommand(sanitize_command);
#elif defined(vms)
status=system(sanitize_command);
#else
# error No suitable system() method.
#endif
if (status < 0)
{
if ((message != (char *) NULL) && (*message != '\0'))
(void) ThrowMagickException(exception,GetMagickModule(),DelegateError,
"FailedToExecuteCommand","`%s' (%s)",sanitize_command,message);
else
(void) ThrowMagickException(exception,GetMagickModule(),DelegateError,
"FailedToExecuteCommand","`%s' (%d)",sanitize_command,status);
}
sanitize_command=DestroyString(sanitize_command);
for (i=0; i < (ssize_t) number_arguments; i++)
arguments[i]=DestroyString(arguments[i]);
arguments=(char **) RelinquishMagickMemory(arguments);
return(status);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% G e t D e l e g a t e C o m m a n d %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% GetDelegateCommand() replaces any embedded formatting characters with the
% appropriate image attribute and returns the resulting command.
%
% The format of the GetDelegateCommand method is:
%
% char *GetDelegateCommand(const ImageInfo *image_info,Image *image,
% const char *decode,const char *encode,ExceptionInfo *exception)
%
% A description of each parameter follows:
%
% o command: Method GetDelegateCommand returns the command associated
% with specified delegate tag.
%
% o image_info: the image info.
%
% o image: the image.
%
% o decode: Specifies the decode delegate we are searching for as a
% character string.
%
% o encode: Specifies the encode delegate we are searching for as a
% character string.
%
% o exception: return any errors or warnings in this structure.
%
*/
static char *GetMagickPropertyLetter(ImageInfo *image_info,Image *image,
const char letter,ExceptionInfo *exception)
{
#define WarnNoImageReturn(format,letter) \
if (image == (Image *) NULL) \
{ \
(void) ThrowMagickException(exception,GetMagickModule(),OptionWarning, \
"NoImageForProperty",format,letter); \
break; \
}
#define WarnNoImageInfoReturn(format,letter) \
if (image_info == (ImageInfo *) NULL) \
{ \
(void) ThrowMagickException(exception,GetMagickModule(),OptionWarning, \
"NoImageInfoForProperty",format,letter); \
break; \
}
char
value[MagickPathExtent];
const char
*string;
if ((image != (Image *) NULL) && (image->debug != MagickFalse))
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
else
if ((image_info != (ImageInfo *) NULL) &&
(image_info->debug != MagickFalse))
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s","no-images");
/*
Get properties that are directly defined by images.
*/
*value='\0'; /* formatted string */
string=(const char *) value;
switch (letter)
{
case 'a': /* authentication passphase */
{
WarnNoImageInfoReturn("\"%%%c\"",letter);
string=GetImageOption(image_info,"authenticate");
break;
}
case 'b': /* image size read in - in bytes */
{
WarnNoImageReturn("\"%%%c\"",letter);
(void) FormatMagickSize(image->extent,MagickFalse,"B",MagickPathExtent,
value);
if (image->extent == 0)
(void) FormatMagickSize(GetBlobSize(image),MagickFalse,"B",
MagickPathExtent,value);
break;
}
case 'd': /* Directory component of filename */
{
WarnNoImageReturn("\"%%%c\"",letter);
GetPathComponent(image->magick_filename,HeadPath,value);
break;
}
case 'e': /* Filename extension (suffix) of image file */
{
WarnNoImageReturn("\"%%%c\"",letter);
GetPathComponent(image->magick_filename,ExtensionPath,value);
break;
}
case 'f': /* Filename without directory component */
{
WarnNoImageReturn("\"%%%c\"",letter);
GetPathComponent(image->magick_filename,TailPath,value);
break;
}
case 'g': /* Image geometry, canvas and offset %Wx%H+%X+%Y */
{
WarnNoImageReturn("\"%%%c\"",letter);
(void) FormatLocaleString(value,MagickPathExtent,
"%.20gx%.20g%+.20g%+.20g",(double) image->page.width,(double)
image->page.height,(double) image->page.x,(double) image->page.y);
break;
}
case 'h': /* Image height (current) */
{
WarnNoImageReturn("\"%%%c\"",letter);
(void) FormatLocaleString(value,MagickPathExtent,"%.20g",(double)
(image->rows != 0 ? image->rows : image->magick_rows));
break;
}
case 'i': /* Filename last used for an image (read or write) */
{
WarnNoImageReturn("\"%%%c\"",letter);
string=image->filename;
break;
}
case 'm': /* Image format (file magick) */
{
WarnNoImageReturn("\"%%%c\"",letter);
string=image->magick;
break;
}
case 'n': /* Number of images in the list. */
{
if (image != (Image *) NULL)
(void) FormatLocaleString(value,MagickPathExtent,"%.20g",(double)
GetImageListLength(image));
break;
}
case 'o': /* Output Filename */
{
WarnNoImageInfoReturn("\"%%%c\"",letter);
string=image_info->filename;
break;
}
case 'p': /* Image index in current image list */
{
WarnNoImageReturn("\"%%%c\"",letter);
(void) FormatLocaleString(value,MagickPathExtent,"%.20g",(double)
GetImageIndexInList(image));
break;
}
case 'q': /* Quantum depth of image in memory */
{
WarnNoImageReturn("\"%%%c\"",letter);
(void) FormatLocaleString(value,MagickPathExtent,"%.20g",(double)
MAGICKCORE_QUANTUM_DEPTH);
break;
}
case 'r': /* Image storage class, colorspace, and alpha enabled. */
{
ColorspaceType
colorspace;
WarnNoImageReturn("\"%%%c\"",letter);
colorspace=image->colorspace;
if (SetImageGray(image,exception) != MagickFalse)
colorspace=GRAYColorspace; /* FUTURE: this is IMv6 not IMv7 */
(void) FormatLocaleString(value,MagickPathExtent,"%s %s %s",
CommandOptionToMnemonic(MagickClassOptions,(ssize_t)
image->storage_class),CommandOptionToMnemonic(MagickColorspaceOptions,
(ssize_t) colorspace),image->alpha_trait != UndefinedPixelTrait ?
"Alpha" : "");
break;
}
case 's': /* Image scene number */
{
WarnNoImageReturn("\"%%%c\"",letter);
(void) FormatLocaleString(value,MagickPathExtent,"%.20g",(double)
image->scene);
break;
}
case 't': /* Base filename without directory or extention */
{
WarnNoImageReturn("\"%%%c\"",letter);
GetPathComponent(image->magick_filename,BasePath,value);
break;
}
case 'u': /* Unique filename */
{
WarnNoImageInfoReturn("\"%%%c\"",letter);
string=image_info->unique;
break;
}
case 'w': /* Image width (current) */
{
WarnNoImageReturn("\"%%%c\"",letter);
(void) FormatLocaleString(value,MagickPathExtent,"%.20g",(double)
(image->columns != 0 ? image->columns : image->magick_columns));
break;
}
case 'x': /* Image horizontal resolution (with units) */
{
WarnNoImageReturn("\"%%%c\"",letter);
(void) FormatLocaleString(value,MagickPathExtent,"%.20g",
fabs(image->resolution.x) > MagickEpsilon ? image->resolution.x : 72.0);
break;
}
case 'y': /* Image vertical resolution (with units) */
{
WarnNoImageReturn("\"%%%c\"",letter);
(void) FormatLocaleString(value,MagickPathExtent,"%.20g",
fabs(image->resolution.y) > MagickEpsilon ? image->resolution.y : 72.0);
break;
}
case 'z': /* Image depth as read in */
{
WarnNoImageReturn("\"%%%c\"",letter);
(void) FormatLocaleString(value,MagickPathExtent,"%.20g",
(double) image->depth);
break;
}
case 'A': /* Image alpha channel */
{
WarnNoImageReturn("\"%%%c\"",letter);
string=CommandOptionToMnemonic(MagickPixelTraitOptions,(ssize_t)
image->alpha_trait);
break;
}
case 'C': /* Image compression method. */
{
WarnNoImageReturn("\"%%%c\"",letter);
string=CommandOptionToMnemonic(MagickCompressOptions,
(ssize_t) image->compression);
break;
}
case 'D': /* Image dispose method. */
{
WarnNoImageReturn("\"%%%c\"",letter);
string=CommandOptionToMnemonic(MagickDisposeOptions,
(ssize_t) image->dispose);
break;
}
case 'F':
{
/*
Magick filename - filename given incl. coder & read mods.
*/
WarnNoImageReturn("\"%%%c\"",letter);
(void) CopyMagickString(value,image->magick_filename,MagickPathExtent);
break;
}
case 'G': /* Image size as geometry = "%wx%h" */
{
WarnNoImageReturn("\"%%%c\"",letter);
(void) FormatLocaleString(value,MagickPathExtent,"%.20gx%.20g",
(double) image->magick_columns,(double) image->magick_rows);
break;
}
case 'H': /* layer canvas height */
{
WarnNoImageReturn("\"%%%c\"",letter);
(void) FormatLocaleString(value,MagickPathExtent,"%.20g",
(double) image->page.height);
break;
}
case 'M': /* Magick filename - filename given incl. coder & read mods */
{
WarnNoImageReturn("\"%%%c\"",letter);
string=image->magick_filename;
break;
}
case 'O': /* layer canvas offset with sign = "+%X+%Y" */
{
WarnNoImageReturn("\"%%%c\"",letter);
(void) FormatLocaleString(value,MagickPathExtent,"%+ld%+ld",(long)
image->page.x,(long) image->page.y);
break;
}
case 'P': /* layer canvas page size = "%Wx%H" */
{
WarnNoImageReturn("\"%%%c\"",letter);
(void) FormatLocaleString(value,MagickPathExtent,"%.20gx%.20g",
(double) image->page.width,(double) image->page.height);
break;
}
case '~': /* BPG image compression quality */
{
WarnNoImageReturn("\"%%%c\"",letter);
(void) FormatLocaleString(value,MagickPathExtent,"%.20g",(double)
(100-(image->quality == 0 ? 42 : image->quality))/2);
break;
}
case 'Q': /* image compression quality */
{
WarnNoImageReturn("\"%%%c\"",letter);
(void) FormatLocaleString(value,MagickPathExtent,"%.20g",(double)
(image->quality == 0 ? 92 : image->quality));
break;
}
case 'S': /* Number of scenes in image list. */
{
WarnNoImageInfoReturn("\"%%%c\"",letter);
(void) FormatLocaleString(value,MagickPathExtent,"%.20g",(double)
(image_info->number_scenes == 0 ? 2147483647 :
image_info->number_scenes));
break;
}
case 'T': /* image time delay for animations */
{
WarnNoImageReturn("\"%%%c\"",letter);
(void) FormatLocaleString(value,MagickPathExtent,"%.20g",(double)
image->delay);
break;
}
case 'U': /* Image resolution units. */
{
WarnNoImageReturn("\"%%%c\"",letter);
string=CommandOptionToMnemonic(MagickResolutionOptions,
(ssize_t) image->units);
break;
}
case 'W': /* layer canvas width */
{
WarnNoImageReturn("\"%%%c\"",letter);
(void) FormatLocaleString(value,MagickPathExtent,"%.20g",(double)
image->page.width);
break;
}
case 'X': /* layer canvas X offset */
{
WarnNoImageReturn("\"%%%c\"",letter);
(void) FormatLocaleString(value,MagickPathExtent,"%+.20g",(double)
image->page.x);
break;
}
case 'Y': /* layer canvas Y offset */
{
WarnNoImageReturn("\"%%%c\"",letter);
(void) FormatLocaleString(value,MagickPathExtent,"%+.20g",(double)
image->page.y);
break;
}
case '%': /* percent escaped */
{
string="%";
break;
}
case '@': /* Trim bounding box, without actually trimming! */
{
RectangleInfo
page;
WarnNoImageReturn("\"%%%c\"",letter);
page=GetImageBoundingBox(image,exception);
(void) FormatLocaleString(value,MagickPathExtent,
"%.20gx%.20g%+.20g%+.20g",(double) page.width,(double) page.height,
(double) page.x,(double) page.y);
break;
}
case '#':
{
/*
Image signature.
*/
WarnNoImageReturn("\"%%%c\"",letter);
(void) SignatureImage(image,exception);
string=GetImageProperty(image,"signature",exception);
break;
}
}
return(SanitizeString(string));
}
static char *InterpretDelegateProperties(ImageInfo *image_info,
Image *image,const char *embed_text,ExceptionInfo *exception)
{
#define ExtendInterpretText(string_length) \
DisableMSCWarning(4127) \
{ \
size_t length=(string_length); \
if ((size_t) (q-interpret_text+length+1) >= extent) \
{ \
extent+=length; \
interpret_text=(char *) ResizeQuantumMemory(interpret_text,extent+ \
MaxTextExtent,sizeof(*interpret_text)); \
if (interpret_text == (char *) NULL) \
return((char *) NULL); \
q=interpret_text+strlen(interpret_text); \
} \
} \
RestoreMSCWarning
#define AppendKeyValue2Text(key,value)\
DisableMSCWarning(4127) \
{ \
size_t length=strlen(key)+strlen(value)+2; \
if ((size_t) (q-interpret_text+length+1) >= extent) \
{ \
extent+=length; \
interpret_text=(char *) ResizeQuantumMemory(interpret_text,extent+ \
MaxTextExtent,sizeof(*interpret_text)); \
if (interpret_text == (char *) NULL) \
return((char *) NULL); \
q=interpret_text+strlen(interpret_text); \
} \
q+=FormatLocaleString(q,extent,"%s=%s\n",(key),(value)); \
} \
RestoreMSCWarning
#define AppendString2Text(string) \
DisableMSCWarning(4127) \
{ \
size_t length=strlen((string)); \
if ((size_t) (q-interpret_text+length+1) >= extent) \
{ \
extent+=length; \
interpret_text=(char *) ResizeQuantumMemory(interpret_text,extent+ \
MaxTextExtent,sizeof(*interpret_text)); \
if (interpret_text == (char *) NULL) \
return((char *) NULL); \
q=interpret_text+strlen(interpret_text); \
} \
(void) CopyMagickString(q,(string),extent); \
q+=length; \
} \
RestoreMSCWarning
char
*interpret_text,
*string;
register char
*q; /* current position in interpret_text */
register const char
*p; /* position in embed_text string being expanded */
size_t
extent; /* allocated length of interpret_text */
MagickBooleanType
number;
assert(image == NULL || image->signature == MagickCoreSignature);
assert(image_info == NULL || image_info->signature == MagickCoreSignature);
if ((image != (Image *) NULL) && (image->debug != MagickFalse))
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
else
if ((image_info != (ImageInfo *) NULL) && (image_info->debug != MagickFalse))
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s","no-image");
if (embed_text == (const char *) NULL)
return(ConstantString(""));
p=embed_text;
while ((isspace((int) ((unsigned char) *p)) != 0) && (*p != '\0'))
p++;
if (*p == '\0')
return(ConstantString(""));
/*
Translate any embedded format characters.
*/
interpret_text=AcquireString(embed_text); /* new string with extra space */
extent=MagickPathExtent; /* allocated space in string */
number=MagickFalse; /* is last char a number? */
for (q=interpret_text; *p!='\0';
number=isdigit((int) ((unsigned char) *p)) ? MagickTrue : MagickFalse,p++)
{
/*
Interpret escape characters (e.g. Filename: %M).
*/
*q='\0';
ExtendInterpretText(MagickPathExtent);
switch (*p)
{
case '\\':
{
switch (*(p+1))
{
case '\0':
continue;
case 'r': /* convert to RETURN */
{
*q++='\r';
p++;
continue;
}
case 'n': /* convert to NEWLINE */
{
*q++='\n';
p++;
continue;
}
case '\n': /* EOL removal UNIX,MacOSX */
{
p++;
continue;
}
case '\r': /* EOL removal DOS,Windows */
{
p++;
if (*p == '\n') /* return-newline EOL */
p++;
continue;
}
default:
{
p++;
*q++=(*p);
}
}
continue;
}
case '&':
{
if (LocaleNCompare("<",p,4) == 0)
{
*q++='<';
p+=3;
}
else
if (LocaleNCompare(">",p,4) == 0)
{
*q++='>';
p+=3;
}
else
if (LocaleNCompare("&",p,5) == 0)
{
*q++='&';
p+=4;
}
else
*q++=(*p);
continue;
}
case '%':
break; /* continue to next set of handlers */
default:
{
*q++=(*p); /* any thing else is 'as normal' */
continue;
}
}
p++; /* advance beyond the percent */
/*
Doubled Percent - or percent at end of string.
*/
if ((*p == '\0') || (*p == '\'') || (*p == '"'))
p--;
if (*p == '%')
{
*q++='%';
continue;
}
/*
Single letter escapes %c.
*/
if (number != MagickFalse)
{
/*
But only if not preceeded by a number!
*/
*q++='%'; /* do NOT substitute the percent */
p--; /* back up one */
continue;
}
string=GetMagickPropertyLetter(image_info,image,*p,exception);
if (string != (char *) NULL)
{
AppendString2Text(string);
string=DestroyString(string);
continue;
}
(void) ThrowMagickException(exception,GetMagickModule(),OptionWarning,
"UnknownImageProperty","\"%%%c\"",*p);
}
*q='\0';
return(interpret_text);
}
MagickExport char *GetDelegateCommand(const ImageInfo *image_info,Image *image,
const char *decode,const char *encode,ExceptionInfo *exception)
{
char
*command,
**commands;
const DelegateInfo
*delegate_info;
register ssize_t
i;
assert(image_info != (ImageInfo *) NULL);
assert(image_info->signature == MagickCoreSignature);
assert(image != (Image *) NULL);
assert(image->signature == MagickCoreSignature);
if (image->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
delegate_info=GetDelegateInfo(decode,encode,exception);
if (delegate_info == (const DelegateInfo *) NULL)
{
(void) ThrowMagickException(exception,GetMagickModule(),DelegateError,
"NoTagFound","`%s'",decode ? decode : encode);
return((char *) NULL);
}
commands=StringToList(delegate_info->commands);
if (commands == (char **) NULL)
{
(void) ThrowMagickException(exception,GetMagickModule(),
ResourceLimitError,"MemoryAllocationFailed","`%s'",decode ? decode :
encode);
return((char *) NULL);
}
command=InterpretDelegateProperties((ImageInfo *) image_info,image,
commands[0],exception);
if (command == (char *) NULL)
(void) ThrowMagickException(exception,GetMagickModule(),ResourceLimitError,
"MemoryAllocationFailed","`%s'",commands[0]);
/*
Relinquish resources.
*/
for (i=0; commands[i] != (char *) NULL; i++)
commands[i]=DestroyString(commands[i]);
commands=(char **) RelinquishMagickMemory(commands);
return(command);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% G e t D e l e g a t e C o m m a n d s %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% GetDelegateCommands() returns the commands associated with a delegate.
%
% The format of the GetDelegateCommands method is:
%
% const char *GetDelegateCommands(const DelegateInfo *delegate_info)
%
% A description of each parameter follows:
%
% o delegate_info: The delegate info.
%
*/
MagickExport const char *GetDelegateCommands(const DelegateInfo *delegate_info)
{
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
assert(delegate_info != (DelegateInfo *) NULL);
assert(delegate_info->signature == MagickCoreSignature);
return(delegate_info->commands);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% G e t D e l e g a t e I n f o %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% GetDelegateInfo() returns any delegates associated with the specified tag.
%
% The format of the GetDelegateInfo method is:
%
% const DelegateInfo *GetDelegateInfo(const char *decode,
% const char *encode,ExceptionInfo *exception)
%
% A description of each parameter follows:
%
% o decode: Specifies the decode delegate we are searching for as a
% character string.
%
% o encode: Specifies the encode delegate we are searching for as a
% character string.
%
% o exception: return any errors or warnings in this structure.
%
*/
MagickExport const DelegateInfo *GetDelegateInfo(const char *decode,
const char *encode,ExceptionInfo *exception)
{
register const DelegateInfo
*p;
assert(exception != (ExceptionInfo *) NULL);
if (IsDelegateCacheInstantiated(exception) == MagickFalse)
return((const DelegateInfo *) NULL);
/*
Search for named delegate.
*/
LockSemaphoreInfo(delegate_semaphore);
ResetLinkedListIterator(delegate_cache);
p=(const DelegateInfo *) GetNextValueInLinkedList(delegate_cache);
if ((LocaleCompare(decode,"*") == 0) && (LocaleCompare(encode,"*") == 0))
{
UnlockSemaphoreInfo(delegate_semaphore);
return(p);
}
while (p != (const DelegateInfo *) NULL)
{
if (p->mode > 0)
{
if (LocaleCompare(p->decode,decode) == 0)
break;
p=(const DelegateInfo *) GetNextValueInLinkedList(delegate_cache);
continue;
}
if (p->mode < 0)
{
if (LocaleCompare(p->encode,encode) == 0)
break;
p=(const DelegateInfo *) GetNextValueInLinkedList(delegate_cache);
continue;
}
if (LocaleCompare(decode,p->decode) == 0)
if (LocaleCompare(encode,p->encode) == 0)
break;
if (LocaleCompare(decode,"*") == 0)
if (LocaleCompare(encode,p->encode) == 0)
break;
if (LocaleCompare(decode,p->decode) == 0)
if (LocaleCompare(encode,"*") == 0)
break;
p=(const DelegateInfo *) GetNextValueInLinkedList(delegate_cache);
}
if (p != (const DelegateInfo *) NULL)
(void) InsertValueInLinkedList(delegate_cache,0,
RemoveElementByValueFromLinkedList(delegate_cache,p));
UnlockSemaphoreInfo(delegate_semaphore);
return(p);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% G e t D e l e g a t e I n f o L i s t %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% GetDelegateInfoList() returns any delegates that match the specified pattern.
%
% The delegate of the GetDelegateInfoList function is:
%
% const DelegateInfo **GetDelegateInfoList(const char *pattern,
% size_t *number_delegates,ExceptionInfo *exception)
%
% A description of each parameter follows:
%
% o pattern: Specifies a pointer to a text string containing a pattern.
%
% o number_delegates: This integer returns the number of delegates in the
% list.
%
% o exception: return any errors or warnings in this structure.
%
*/
#if defined(__cplusplus) || defined(c_plusplus)
extern "C" {
#endif
static int DelegateInfoCompare(const void *x,const void *y)
{
const DelegateInfo
**p,
**q;
int
cmp;
p=(const DelegateInfo **) x,
q=(const DelegateInfo **) y;
cmp=LocaleCompare((*p)->path,(*q)->path);
if (cmp == 0)
{
if ((*p)->decode == (char *) NULL)
if (((*p)->encode != (char *) NULL) &&
((*q)->encode != (char *) NULL))
return(strcmp((*p)->encode,(*q)->encode));
if (((*p)->decode != (char *) NULL) &&
((*q)->decode != (char *) NULL))
return(strcmp((*p)->decode,(*q)->decode));
}
return(cmp);
}
#if defined(__cplusplus) || defined(c_plusplus)
}
#endif
MagickExport const DelegateInfo **GetDelegateInfoList(const char *pattern,
size_t *number_delegates,ExceptionInfo *exception)
{
const DelegateInfo
**delegates;
register const DelegateInfo
*p;
register ssize_t
i;
/*
Allocate delegate list.
*/
assert(number_delegates != (size_t *) NULL);
assert(pattern != (char *) NULL);
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",pattern);
*number_delegates=0;
p=GetDelegateInfo("*","*",exception);
if (p == (const DelegateInfo *) NULL)
return((const DelegateInfo **) NULL);
delegates=(const DelegateInfo **) AcquireQuantumMemory((size_t)
GetNumberOfElementsInLinkedList(delegate_cache)+1UL,sizeof(*delegates));
if (delegates == (const DelegateInfo **) NULL)
return((const DelegateInfo **) NULL);
/*
Generate delegate list.
*/
LockSemaphoreInfo(delegate_semaphore);
ResetLinkedListIterator(delegate_cache);
p=(const DelegateInfo *) GetNextValueInLinkedList(delegate_cache);
for (i=0; p != (const DelegateInfo *) NULL; )
{
if( (p->stealth == MagickFalse) &&
( GlobExpression(p->decode,pattern,MagickFalse) != MagickFalse ||
GlobExpression(p->encode,pattern,MagickFalse) != MagickFalse) )
delegates[i++]=p;
p=(const DelegateInfo *) GetNextValueInLinkedList(delegate_cache);
}
UnlockSemaphoreInfo(delegate_semaphore);
qsort((void *) delegates,(size_t) i,sizeof(*delegates),DelegateInfoCompare);
delegates[i]=(DelegateInfo *) NULL;
*number_delegates=(size_t) i;
return(delegates);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% G e t D e l e g a t e L i s t %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% GetDelegateList() returns any image format delegates that match the
% specified pattern.
%
% The format of the GetDelegateList function is:
%
% char **GetDelegateList(const char *pattern,
% size_t *number_delegates,ExceptionInfo *exception)
%
% A description of each parameter follows:
%
% o pattern: Specifies a pointer to a text string containing a pattern.
%
% o number_delegates: This integer returns the number of delegates
% in the list.
%
% o exception: return any errors or warnings in this structure.
%
*/
#if defined(__cplusplus) || defined(c_plusplus)
extern "C" {
#endif
static int DelegateCompare(const void *x,const void *y)
{
register const char
**p,
**q;
p=(const char **) x;
q=(const char **) y;
return(LocaleCompare(*p,*q));
}
#if defined(__cplusplus) || defined(c_plusplus)
}
#endif
MagickExport char **GetDelegateList(const char *pattern,
size_t *number_delegates,ExceptionInfo *exception)
{
char
**delegates;
register const DelegateInfo
*p;
register ssize_t
i;
/*
Allocate delegate list.
*/
assert(pattern != (char *) NULL);
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",pattern);
assert(number_delegates != (size_t *) NULL);
*number_delegates=0;
p=GetDelegateInfo("*","*",exception);
if (p == (const DelegateInfo *) NULL)
return((char **) NULL);
delegates=(char **) AcquireQuantumMemory((size_t)
GetNumberOfElementsInLinkedList(delegate_cache)+1UL,sizeof(*delegates));
if (delegates == (char **) NULL)
return((char **) NULL);
LockSemaphoreInfo(delegate_semaphore);
ResetLinkedListIterator(delegate_cache);
p=(const DelegateInfo *) GetNextValueInLinkedList(delegate_cache);
for (i=0; p != (const DelegateInfo *) NULL; )
{
if( (p->stealth == MagickFalse) &&
GlobExpression(p->decode,pattern,MagickFalse) != MagickFalse )
delegates[i++]=ConstantString(p->decode);
if( (p->stealth == MagickFalse) &&
GlobExpression(p->encode,pattern,MagickFalse) != MagickFalse )
delegates[i++]=ConstantString(p->encode);
p=(const DelegateInfo *) GetNextValueInLinkedList(delegate_cache);
}
UnlockSemaphoreInfo(delegate_semaphore);
qsort((void *) delegates,(size_t) i,sizeof(*delegates),DelegateCompare);
delegates[i]=(char *) NULL;
*number_delegates=(size_t) i;
return(delegates);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% G e t D e l e g a t e M o d e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% GetDelegateMode() returns the mode of the delegate.
%
% The format of the GetDelegateMode method is:
%
% ssize_t GetDelegateMode(const DelegateInfo *delegate_info)
%
% A description of each parameter follows:
%
% o delegate_info: The delegate info.
%
*/
MagickExport ssize_t GetDelegateMode(const DelegateInfo *delegate_info)
{
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
assert(delegate_info != (DelegateInfo *) NULL);
assert(delegate_info->signature == MagickCoreSignature);
return(delegate_info->mode);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
+ G e t D e l e g a t e T h r e a d S u p p o r t %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% GetDelegateThreadSupport() returns MagickTrue if the delegate supports
% threads.
%
% The format of the GetDelegateThreadSupport method is:
%
% MagickBooleanType GetDelegateThreadSupport(
% const DelegateInfo *delegate_info)
%
% A description of each parameter follows:
%
% o delegate_info: The delegate info.
%
*/
MagickExport MagickBooleanType GetDelegateThreadSupport(
const DelegateInfo *delegate_info)
{
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
assert(delegate_info != (DelegateInfo *) NULL);
assert(delegate_info->signature == MagickCoreSignature);
return(delegate_info->thread_support);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
+ I s D e l e g a t e C a c h e I n s t a n t i a t e d %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% IsDelegateCacheInstantiated() determines if the delegate cache is
% instantiated. If not, it instantiates the cache and returns it.
%
% The format of the IsDelegateInstantiated method is:
%
% MagickBooleanType IsDelegateCacheInstantiated(ExceptionInfo *exception)
%
% A description of each parameter follows.
%
% o exception: return any errors or warnings in this structure.
%
*/
static MagickBooleanType IsDelegateCacheInstantiated(ExceptionInfo *exception)
{
if (delegate_cache == (LinkedListInfo *) NULL)
{
if (delegate_semaphore == (SemaphoreInfo *) NULL)
ActivateSemaphoreInfo(&delegate_semaphore);
LockSemaphoreInfo(delegate_semaphore);
if (delegate_cache == (LinkedListInfo *) NULL)
delegate_cache=AcquireDelegateCache(DelegateFilename,exception);
UnlockSemaphoreInfo(delegate_semaphore);
}
return(delegate_cache != (LinkedListInfo *) NULL ? MagickTrue : MagickFalse);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% I n v o k e D e l e g a t e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% InvokeDelegate replaces any embedded formatting characters with the
% appropriate image attribute and executes the resulting command. MagickFalse
% is returned if the commands execute with success otherwise MagickTrue.
%
% The format of the InvokeDelegate method is:
%
% MagickBooleanType InvokeDelegate(ImageInfo *image_info,Image *image,
% const char *decode,const char *encode,ExceptionInfo *exception)
%
% A description of each parameter follows:
%
% o image_info: the imageInfo.
%
% o image: the image.
%
% o exception: return any errors or warnings in this structure.
%
*/
static MagickBooleanType CopyDelegateFile(const char *source,
const char *destination,const MagickBooleanType overwrite)
{
int
destination_file,
source_file;
MagickBooleanType
status;
register size_t
i;
size_t
length,
quantum;
ssize_t
count;
struct stat
attributes;
unsigned char
*buffer;
/*
Copy source file to destination.
*/
assert(source != (const char *) NULL);
assert(destination != (char *) NULL);
if (overwrite == MagickFalse)
{
status=GetPathAttributes(destination,&attributes);
if (status != MagickFalse)
return(MagickTrue);
}
destination_file=open_utf8(destination,O_WRONLY | O_BINARY | O_CREAT,S_MODE);
if (destination_file == -1)
return(MagickFalse);
source_file=open_utf8(source,O_RDONLY | O_BINARY,0);
if (source_file == -1)
{
(void) close(destination_file);
return(MagickFalse);
}
quantum=(size_t) MagickMaxBufferExtent;
if ((fstat(source_file,&attributes) == 0) && (attributes.st_size > 0))
quantum=MagickMin((size_t) attributes.st_size,MagickMaxBufferExtent);
buffer=(unsigned char *) AcquireQuantumMemory(quantum,sizeof(*buffer));
if (buffer == (unsigned char *) NULL)
{
(void) close(source_file);
(void) close(destination_file);
return(MagickFalse);
}
length=0;
for (i=0; ; i+=count)
{
count=(ssize_t) read(source_file,buffer,quantum);
if (count <= 0)
break;
length=(size_t) count;
count=(ssize_t) write(destination_file,buffer,length);
if ((size_t) count != length)
break;
}
(void) close(destination_file);
(void) close(source_file);
buffer=(unsigned char *) RelinquishMagickMemory(buffer);
return(i != 0 ? MagickTrue : MagickFalse);
}
MagickExport MagickBooleanType InvokeDelegate(ImageInfo *image_info,
Image *image,const char *decode,const char *encode,ExceptionInfo *exception)
{
char
*command,
**commands,
input_filename[MagickPathExtent],
output_filename[MagickPathExtent];
const DelegateInfo
*delegate_info;
MagickBooleanType
status,
temporary;
PolicyRights
rights;
register ssize_t
i;
/*
Get delegate.
*/
assert(image_info != (ImageInfo *) NULL);
assert(image_info->signature == MagickCoreSignature);
assert(image != (Image *) NULL);
assert(image->signature == MagickCoreSignature);
if (image->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
rights=ExecutePolicyRights;
if (IsRightsAuthorized(DelegatePolicyDomain,rights,decode) == MagickFalse)
{
errno=EPERM;
(void) ThrowMagickException(exception,GetMagickModule(),PolicyError,
"NotAuthorized","`%s'",decode);
return(MagickFalse);
}
if (IsRightsAuthorized(DelegatePolicyDomain,rights,encode) == MagickFalse)
{
errno=EPERM;
(void) ThrowMagickException(exception,GetMagickModule(),PolicyError,
"NotAuthorized","`%s'",encode);
return(MagickFalse);
}
temporary=*image->filename == '\0' ? MagickTrue : MagickFalse;
if ((temporary != MagickFalse) && (AcquireUniqueFilename(image->filename) ==
MagickFalse))
{
ThrowFileException(exception,FileOpenError,"UnableToCreateTemporaryFile",
image->filename);
return(MagickFalse);
}
delegate_info=GetDelegateInfo(decode,encode,exception);
if (delegate_info == (DelegateInfo *) NULL)
{
if (temporary != MagickFalse)
(void) RelinquishUniqueFileResource(image->filename);
(void) ThrowMagickException(exception,GetMagickModule(),DelegateError,
"NoTagFound","`%s'",decode ? decode : encode);
return(MagickFalse);
}
if (*image_info->filename == '\0')
{
if (AcquireUniqueFilename(image_info->filename) == MagickFalse)
{
if (temporary != MagickFalse)
(void) RelinquishUniqueFileResource(image->filename);
ThrowFileException(exception,FileOpenError,
"UnableToCreateTemporaryFile",image_info->filename);
return(MagickFalse);
}
image_info->temporary=MagickTrue;
}
if ((delegate_info->mode != 0) && (((decode != (const char *) NULL) &&
(delegate_info->encode != (char *) NULL)) ||
((encode != (const char *) NULL) &&
(delegate_info->decode != (char *) NULL))))
{
char
*magick;
ImageInfo
*clone_info;
register Image
*p;
/*
Delegate requires a particular image format.
*/
if (AcquireUniqueFilename(image_info->unique) == MagickFalse)
{
ThrowFileException(exception,FileOpenError,
"UnableToCreateTemporaryFile",image_info->unique);
return(MagickFalse);
}
magick=InterpretImageProperties(image_info,image,decode != (char *) NULL ?
delegate_info->encode : delegate_info->decode,exception);
if (magick == (char *) NULL)
{
(void) RelinquishUniqueFileResource(image_info->unique);
if (temporary != MagickFalse)
(void) RelinquishUniqueFileResource(image->filename);
(void) ThrowMagickException(exception,GetMagickModule(),
DelegateError,"DelegateFailed","`%s'",decode ? decode : encode);
return(MagickFalse);
}
LocaleUpper(magick);
clone_info=CloneImageInfo(image_info);
(void) CopyMagickString((char *) clone_info->magick,magick,
MagickPathExtent);
if (LocaleCompare(magick,"NULL") != 0)
(void) CopyMagickString(image->magick,magick,MagickPathExtent);
magick=DestroyString(magick);
(void) FormatLocaleString(clone_info->filename,MagickPathExtent,"%s:",
delegate_info->decode);
(void) SetImageInfo(clone_info,(unsigned int) GetImageListLength(image),
exception);
(void) CopyMagickString(clone_info->filename,image_info->filename,
MagickPathExtent);
(void) CopyMagickString(image_info->filename,image->filename,
MagickPathExtent);
for (p=image; p != (Image *) NULL; p=GetNextImageInList(p))
{
(void) FormatLocaleString(p->filename,MagickPathExtent,"%s:%s",
delegate_info->decode,clone_info->filename);
status=WriteImage(clone_info,p,exception);
if (status == MagickFalse)
{
(void) RelinquishUniqueFileResource(image_info->unique);
if (temporary != MagickFalse)
(void) RelinquishUniqueFileResource(image->filename);
clone_info=DestroyImageInfo(clone_info);
(void) ThrowMagickException(exception,GetMagickModule(),
DelegateError,"DelegateFailed","`%s'",decode ? decode : encode);
return(MagickFalse);
}
if (clone_info->adjoin != MagickFalse)
break;
}
(void) RelinquishUniqueFileResource(image_info->unique);
clone_info=DestroyImageInfo(clone_info);
}
/*
Invoke delegate.
*/
commands=StringToList(delegate_info->commands);
if (commands == (char **) NULL)
{
if (temporary != MagickFalse)
(void) RelinquishUniqueFileResource(image->filename);
(void) ThrowMagickException(exception,GetMagickModule(),
ResourceLimitError,"MemoryAllocationFailed","`%s'",
decode ? decode : encode);
return(MagickFalse);
}
command=(char *) NULL;
status=MagickTrue;
(void) CopyMagickString(output_filename,image_info->filename,
MagickPathExtent);
(void) CopyMagickString(input_filename,image->filename,MagickPathExtent);
for (i=0; commands[i] != (char *) NULL; i++)
{
(void) AcquireUniqueSymbolicLink(output_filename,image_info->filename);
if (AcquireUniqueFilename(image_info->unique) == MagickFalse)
{
ThrowFileException(exception,FileOpenError,
"UnableToCreateTemporaryFile",image_info->unique);
break;
}
if (LocaleCompare(decode,"SCAN") != 0)
{
status=AcquireUniqueSymbolicLink(input_filename,image->filename);
if (status == MagickFalse)
{
ThrowFileException(exception,FileOpenError,
"UnableToCreateTemporaryFile",input_filename);
break;
}
}
status=MagickTrue;
command=InterpretDelegateProperties(image_info,image,commands[i],exception);
if (command != (char *) NULL)
{
/*
Execute delegate.
*/
if (ExternalDelegateCommand(delegate_info->spawn,image_info->verbose,
command,(char *) NULL,exception) != 0)
status=MagickFalse;
if (delegate_info->spawn != MagickFalse)
{
ssize_t
count;
/*
Wait for input file to 'disappear', or maximum 2 seconds.
*/
count=20;
while ((count-- > 0) && (access_utf8(image->filename,F_OK) == 0))
(void) MagickDelay(100); /* sleep 0.1 seconds */
}
command=DestroyString(command);
}
if (LocaleCompare(decode,"SCAN") != 0)
{
if (CopyDelegateFile(image->filename,input_filename,MagickFalse) == MagickFalse)
(void) RelinquishUniqueFileResource(input_filename);
}
if ((strcmp(input_filename,output_filename) != 0) &&
(CopyDelegateFile(image_info->filename,output_filename,MagickTrue) == MagickFalse))
(void) RelinquishUniqueFileResource(output_filename);
if (image_info->temporary != MagickFalse)
(void) RelinquishUniqueFileResource(image_info->filename);
(void) RelinquishUniqueFileResource(image_info->unique);
(void) RelinquishUniqueFileResource(image_info->filename);
(void) RelinquishUniqueFileResource(image->filename);
if (status == MagickFalse)
{
(void) ThrowMagickException(exception,GetMagickModule(),DelegateError,
"DelegateFailed","`%s'",commands[i]);
break;
}
commands[i]=DestroyString(commands[i]);
}
(void) CopyMagickString(image_info->filename,output_filename,
MagickPathExtent);
(void) CopyMagickString(image->filename,input_filename,MagickPathExtent);
/*
Relinquish resources.
*/
for ( ; commands[i] != (char *) NULL; i++)
commands[i]=DestroyString(commands[i]);
commands=(char **) RelinquishMagickMemory(commands);
if (temporary != MagickFalse)
(void) RelinquishUniqueFileResource(image->filename);
return(status);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% L i s t D e l e g a t e I n f o %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% ListDelegateInfo() lists the image formats to a file.
%
% The format of the ListDelegateInfo method is:
%
% MagickBooleanType ListDelegateInfo(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 ListDelegateInfo(FILE *file,
ExceptionInfo *exception)
{
const DelegateInfo
**delegate_info;
char
**commands,
delegate[MagickPathExtent];
const char
*path;
register ssize_t
i;
size_t
number_delegates;
ssize_t
j;
if (file == (const FILE *) NULL)
file=stdout;
delegate_info=GetDelegateInfoList("*",&number_delegates,exception);
if (delegate_info == (const DelegateInfo **) NULL)
return(MagickFalse);
path=(const char *) NULL;
for (i=0; i < (ssize_t) number_delegates; i++)
{
if (delegate_info[i]->stealth != MagickFalse)
continue;
if ((path == (const char *) NULL) ||
(LocaleCompare(path,delegate_info[i]->path) != 0))
{
if (delegate_info[i]->path != (char *) NULL)
(void) FormatLocaleFile(file,"\nPath: %s\n\n",delegate_info[i]->path);
(void) FormatLocaleFile(file,"Delegate Command\n");
(void) FormatLocaleFile(file,
"-------------------------------------------------"
"------------------------------\n");
}
path=delegate_info[i]->path;
*delegate='\0';
if (delegate_info[i]->encode != (char *) NULL)
(void) CopyMagickString(delegate,delegate_info[i]->encode,
MagickPathExtent);
(void) ConcatenateMagickString(delegate," ",MagickPathExtent);
delegate[8]='\0';
commands=StringToList(delegate_info[i]->commands);
if (commands == (char **) NULL)
continue;
(void) FormatLocaleFile(file,"%11s%c=%c%s ",delegate_info[i]->decode ?
delegate_info[i]->decode : "",delegate_info[i]->mode <= 0 ? '<' : ' ',
delegate_info[i]->mode >= 0 ? '>' : ' ',delegate);
StripString(commands[0]);
(void) FormatLocaleFile(file,"\"%s\"\n",commands[0]);
for (j=1; commands[j] != (char *) NULL; j++)
{
StripString(commands[j]);
(void) FormatLocaleFile(file," \"%s\"\n",commands[j]);
}
for (j=0; commands[j] != (char *) NULL; j++)
commands[j]=DestroyString(commands[j]);
commands=(char **) RelinquishMagickMemory(commands);
}
(void) fflush(file);
delegate_info=(const DelegateInfo **)
RelinquishMagickMemory((void *) delegate_info);
return(MagickTrue);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
+ L o a d D e l e g a t e C a c h e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% LoadDelegateCache() loads the delegate configurations which provides a
% mapping between delegate attributes and a delegate name.
%
% The format of the LoadDelegateCache method is:
%
% MagickBooleanType LoadDelegateCache(LinkedListInfo *cache,
% const char *xml,const char *filename,const size_t depth,
% ExceptionInfo *exception)
%
% A description of each parameter follows:
%
% o xml: The delegate list in XML format.
%
% o filename: The delegate list filename.
%
% o depth: depth of <include /> statements.
%
% o exception: return any errors or warnings in this structure.
%
*/
static MagickBooleanType LoadDelegateCache(LinkedListInfo *cache,
const char *xml,const char *filename,const size_t depth,
ExceptionInfo *exception)
{
char
keyword[MagickPathExtent],
*token;
const char
*q;
DelegateInfo
*delegate_info;
MagickStatusType
status;
size_t
extent;
/*
Load the delegate map file.
*/
(void) LogMagickEvent(ConfigureEvent,GetMagickModule(),
"Loading delegate configuration file \"%s\" ...",filename);
if (xml == (const char *) NULL)
return(MagickFalse);
status=MagickTrue;
delegate_info=(DelegateInfo *) NULL;
token=AcquireString(xml);
extent=strlen(token)+MagickPathExtent;
for (q=(const char *) xml; *q != '\0'; )
{
/*
Interpret XML.
*/
GetNextToken(q,&q,extent,token);
if (*token == '\0')
break;
(void) CopyMagickString(keyword,token,MagickPathExtent);
if (LocaleNCompare(keyword,"<!DOCTYPE",9) == 0)
{
/*
Doctype element.
*/
while ((LocaleNCompare(q,"]>",2) != 0) && (*q != '\0'))
GetNextToken(q,&q,extent,token);
continue;
}
if (LocaleNCompare(keyword,"<!--",4) == 0)
{
/*
Comment element.
*/
while ((LocaleNCompare(q,"->",2) != 0) && (*q != '\0'))
GetNextToken(q,&q,extent,token);
continue;
}
if (LocaleCompare(keyword,"<include") == 0)
{
/*
Include element.
*/
while (((*token != '/') && (*(token+1) != '>')) && (*q != '\0'))
{
(void) CopyMagickString(keyword,token,MagickPathExtent);
GetNextToken(q,&q,extent,token);
if (*token != '=')
continue;
GetNextToken(q,&q,extent,token);
if (LocaleCompare(keyword,"file") == 0)
{
if (depth > MagickMaxRecursionDepth)
(void) ThrowMagickException(exception,GetMagickModule(),
ConfigureError,"IncludeElementNestedTooDeeply","`%s'",token);
else
{
char
path[MagickPathExtent],
*file_xml;
GetPathComponent(filename,HeadPath,path);
if (*path != '\0')
(void) ConcatenateMagickString(path,DirectorySeparator,
MagickPathExtent);
if (*token == *DirectorySeparator)
(void) CopyMagickString(path,token,MagickPathExtent);
else
(void) ConcatenateMagickString(path,token,MagickPathExtent);
file_xml=FileToXML(path,~0UL);
if (file_xml != (char *) NULL)
{
status&=LoadDelegateCache(cache,file_xml,path,
depth+1,exception);
file_xml=DestroyString(file_xml);
}
}
}
}
continue;
}
if (LocaleCompare(keyword,"<delegate") == 0)
{
/*
Delegate element.
*/
delegate_info=(DelegateInfo *) AcquireCriticalMemory(
sizeof(*delegate_info));
(void) memset(delegate_info,0,sizeof(*delegate_info));
delegate_info->path=ConstantString(filename);
delegate_info->thread_support=MagickTrue;
delegate_info->signature=MagickCoreSignature;
continue;
}
if (delegate_info == (DelegateInfo *) NULL)
continue;
if ((LocaleCompare(keyword,"/>") == 0) ||
(LocaleCompare(keyword,"</policy>") == 0))
{
status=AppendValueToLinkedList(cache,delegate_info);
if (status == MagickFalse)
(void) ThrowMagickException(exception,GetMagickModule(),
ResourceLimitError,"MemoryAllocationFailed","`%s'",
delegate_info->commands);
delegate_info=(DelegateInfo *) NULL;
continue;
}
GetNextToken(q,(const char **) NULL,extent,token);
if (*token != '=')
continue;
GetNextToken(q,&q,extent,token);
GetNextToken(q,&q,extent,token);
switch (*keyword)
{
case 'C':
case 'c':
{
if (LocaleCompare((char *) keyword,"command") == 0)
{
char
*commands;
commands=AcquireString(token);
#if defined(MAGICKCORE_WINDOWS_SUPPORT)
if (strchr(commands,'@') != (char *) NULL)
{
char
path[MagickPathExtent];
NTGhostscriptEXE(path,MagickPathExtent);
(void) SubstituteString((char **) &commands,"@PSDelegate@",
path);
(void) SubstituteString((char **) &commands,"\\","/");
}
(void) SubstituteString((char **) &commands,""","\"");
#else
(void) SubstituteString((char **) &commands,""","'");
#endif
(void) SubstituteString((char **) &commands,"&","&");
(void) SubstituteString((char **) &commands,">",">");
(void) SubstituteString((char **) &commands,"<","<");
delegate_info->commands=commands;
break;
}
break;
}
case 'D':
case 'd':
{
if (LocaleCompare((char *) keyword,"decode") == 0)
{
delegate_info->decode=ConstantString(token);
delegate_info->mode=1;
break;
}
break;
}
case 'E':
case 'e':
{
if (LocaleCompare((char *) keyword,"encode") == 0)
{
delegate_info->encode=ConstantString(token);
delegate_info->mode=(-1);
break;
}
break;
}
case 'M':
case 'm':
{
if (LocaleCompare((char *) keyword,"mode") == 0)
{
delegate_info->mode=1;
if (LocaleCompare(token,"bi") == 0)
delegate_info->mode=0;
else
if (LocaleCompare(token,"encode") == 0)
delegate_info->mode=(-1);
break;
}
break;
}
case 'S':
case 's':
{
if (LocaleCompare((char *) keyword,"spawn") == 0)
{
delegate_info->spawn=IsStringTrue(token);
break;
}
if (LocaleCompare((char *) keyword,"stealth") == 0)
{
delegate_info->stealth=IsStringTrue(token);
break;
}
break;
}
case 'T':
case 't':
{
if (LocaleCompare((char *) keyword,"thread-support") == 0)
{
delegate_info->thread_support=IsStringTrue(token);
if (delegate_info->thread_support == MagickFalse)
delegate_info->semaphore=AcquireSemaphoreInfo();
break;
}
break;
}
default:
break;
}
}
token=(char *) RelinquishMagickMemory(token);
return(status != 0 ? MagickTrue : MagickFalse);
}