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      1 /*
      2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
      3 %                                                                             %
      4 %                                                                             %
      5 %                                                                             %
      6 %                W     W  AA  N   N DDD   CCC L    III                        %
      7 %                W     W A  A NN  N D  D C    L     I                         %
      8 %                W  W  W AAAA N N N D  D C    L     I                         %
      9 %                 W W W  A  A N  NN D  D C    L     I                         %
     10 %                  W W   A  A N   N DDD   CCC LLLL III                        %
     11 %                                                                             %
     12 %                         WandCLI Structure Methods                           %
     13 %                                                                             %
     14 %                              Dragon Computing                               %
     15 %                              Anthony Thyssen                                %
     16 %                                 April 2011                                  %
     17 %                                                                             %
     18 %  Copyright 1999-2019 ImageMagick Studio LLC, a non-profit organization      %
     19 %  dedicated to making software imaging solutions freely available.           %
     20 %                                                                             %
     21 %  You may not use this file except in compliance with the License.  You may  %
     22 %  obtain a copy of the License at                                            %
     23 %                                                                             %
     24 %    https://imagemagick.org/script/license.php                               %
     25 %                                                                             %
     26 %  Unless required by applicable law or agreed to in writing, software        %
     27 %  distributed under the License is distributed on an "AS IS" BASIS,          %
     28 %  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.   %
     29 %  See the License for the specific language governing permissions and        %
     30 %  limitations under the License.                                             %
     31 %                                                                             %
     32 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
     33 %
     34 % General methds for handling the WandCLI structure used for Command Line.
     35 %
     36 % Anthony Thyssen, April 2011
     37 */
     38 
     39 /*
     41   Include declarations.
     42 */
     43 #include "MagickWand/studio.h"
     44 #include "MagickWand/MagickWand.h"
     45 #include "MagickWand/wand.h"
     46 #include "MagickWand/magick-wand-private.h"
     47 #include "MagickWand/wandcli.h"
     48 #include "MagickWand/wandcli-private.h"
     49 #include "MagickCore/exception.h"
     50 
     51 /*
     53 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
     54 %                                                                             %
     55 %                                                                             %
     56 %                                                                             %
     57 +   A c q u i r e W a n d C L I                                               %
     58 %                                                                             %
     59 %                                                                             %
     60 %                                                                             %
     61 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
     62 %
     63 %  AcquireMagickCLI() creates a new CLI wand (an expanded form of Magick
     64 %  Wand). The given image_info and exception is included as is if provided.
     65 %
     66 %  Use DestroyMagickCLI() to dispose of the CLI wand when it is no longer
     67 %  needed.
     68 %
     69 %  The format of the NewMagickWand method is:
     70 %
     71 %      MagickCLI *AcquireMagickCLI(ImageInfo *image_info,
     72 %           ExceptionInfo *exception)
     73 %
     74 */
     75 WandExport MagickCLI *AcquireMagickCLI(ImageInfo *image_info,
     76     ExceptionInfo *exception)
     77 {
     78   MagickCLI
     79     *cli_wand;
     80 
     81   /* precaution - as per NewMagickWand() */
     82   {
     83      size_t depth = MAGICKCORE_QUANTUM_DEPTH;
     84      const char *quantum = GetMagickQuantumDepth(&depth);
     85      if (depth != MAGICKCORE_QUANTUM_DEPTH)
     86        ThrowWandFatalException(WandError,"QuantumDepthMismatch",quantum);
     87   }
     88 
     89   /* allocate memory for MgaickCLI */
     90   cli_wand=(MagickCLI *) AcquireMagickMemory(sizeof(*cli_wand));
     91   if (cli_wand == (MagickCLI *) NULL)
     92     ThrowWandFatalException(ResourceLimitFatalError,"MemoryAllocationFailed",
     93       GetExceptionMessage(errno));
     94 
     95   /* Initialize Wand Part of MagickCLI
     96      FUTURE: this is a repeat of code from NewMagickWand()
     97      However some parts may be given fro man external source!
     98   */
     99   cli_wand->wand.id=AcquireWandId();
    100   (void) FormatLocaleString(cli_wand->wand.name,MagickPathExtent,
    101            "%s-%.20g","MagickWandCLI", (double) cli_wand->wand.id);
    102   cli_wand->wand.images=NewImageList();
    103   if ( image_info == (ImageInfo *) NULL)
    104     cli_wand->wand.image_info=AcquireImageInfo();
    105   else
    106     cli_wand->wand.image_info=image_info;
    107   if ( exception == (ExceptionInfo *) NULL)
    108     cli_wand->wand.exception=AcquireExceptionInfo();
    109   else
    110     cli_wand->wand.exception=exception;
    111   cli_wand->wand.debug=IsEventLogging();
    112   cli_wand->wand.signature=MagickWandSignature;
    113 
    114   /* Initialize CLI Part of MagickCLI */
    115   cli_wand->draw_info=CloneDrawInfo(cli_wand->wand.image_info,(DrawInfo *) NULL);
    116   cli_wand->quantize_info=AcquireQuantizeInfo(cli_wand->wand.image_info);
    117   cli_wand->process_flags=MagickCommandOptionFlags;  /* assume "magick" CLI */
    118   cli_wand->command=(const OptionInfo *) NULL;     /* no option at this time */
    119   cli_wand->image_list_stack=(Stack *) NULL;
    120   cli_wand->image_info_stack=(Stack *) NULL;
    121 
    122   /* default exception location...
    123      EG: sprintf(locaiton, filename, line, column);
    124   */
    125   cli_wand->location="from \"%s\"";   /* location format using arguments: */
    126                                       /*      filename, line, column */
    127   cli_wand->filename="unknown";       /* script filename, unknown source */
    128   cli_wand->line=0;                   /* line from script OR CLI argument */
    129   cli_wand->column=0;                 /* column from script */
    130 
    131   cli_wand->signature=MagickWandSignature;
    132   if (cli_wand->wand.debug != MagickFalse)
    133     (void) LogMagickEvent(WandEvent,GetMagickModule(),"%s",cli_wand->wand.name);
    134   return(cli_wand);
    135 }
    136 
    137 /*
    139 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
    140 %                                                                             %
    141 %                                                                             %
    142 %                                                                             %
    143 +   D e s t r o y W a n d C L I                                               %
    144 %                                                                             %
    145 %                                                                             %
    146 %                                                                             %
    147 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
    148 %
    149 %  DestroyMagickCLI() destorys everything in a CLI wand, including image_info
    150 %  and any exceptions, if still present in the wand.
    151 %
    152 %  The format of the NewMagickWand method is:
    153 %
    154 %    MagickWand *DestroyMagickCLI()
    155 %            Exception *exception)
    156 %
    157 */
    158 WandExport MagickCLI *DestroyMagickCLI(MagickCLI *cli_wand)
    159 {
    160   Stack
    161     *node;
    162 
    163   assert(cli_wand != (MagickCLI *) NULL);
    164   assert(cli_wand->signature == MagickWandSignature);
    165   assert(cli_wand->wand.signature == MagickWandSignature);
    166   if (cli_wand->wand.debug != MagickFalse)
    167     (void) LogMagickEvent(WandEvent,GetMagickModule(),"%s",cli_wand->wand.name);
    168 
    169   /* Destroy CLI part of MagickCLI */
    170   if (cli_wand->draw_info != (DrawInfo *) NULL )
    171     cli_wand->draw_info=DestroyDrawInfo(cli_wand->draw_info);
    172   if (cli_wand->quantize_info != (QuantizeInfo *) NULL )
    173     cli_wand->quantize_info=DestroyQuantizeInfo(cli_wand->quantize_info);
    174   while(cli_wand->image_list_stack != (Stack *) NULL)
    175     {
    176       node=cli_wand->image_list_stack;
    177       cli_wand->image_list_stack=node->next;
    178       (void) DestroyImageList((Image *)node->data);
    179       (void) RelinquishMagickMemory(node);
    180     }
    181   while(cli_wand->image_info_stack != (Stack *) NULL)
    182     {
    183       node=cli_wand->image_info_stack;
    184       cli_wand->image_info_stack=node->next;
    185       (void) DestroyImageInfo((ImageInfo *)node->data);
    186       (void) RelinquishMagickMemory(node);
    187     }
    188   cli_wand->signature=(~MagickWandSignature);
    189 
    190   /* Destroy Wand part MagickCLI */
    191   cli_wand->wand.images=DestroyImageList(cli_wand->wand.images);
    192   if (cli_wand->wand.image_info != (ImageInfo *) NULL )
    193     cli_wand->wand.image_info=DestroyImageInfo(cli_wand->wand.image_info);
    194   if (cli_wand->wand.exception != (ExceptionInfo *) NULL )
    195     cli_wand->wand.exception=DestroyExceptionInfo(cli_wand->wand.exception);
    196   RelinquishWandId(cli_wand->wand.id);
    197   cli_wand->wand.signature=(~MagickWandSignature);
    198   cli_wand=(MagickCLI *) RelinquishMagickMemory(cli_wand);
    199   return((MagickCLI *) NULL);
    200 }
    201 
    202 /*
    204 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
    205 %                                                                             %
    206 %                                                                             %
    207 %                                                                             %
    208 +   C L I C a t c h E x c e p t i o n                                         %
    209 %                                                                             %
    210 %                                                                             %
    211 %                                                                             %
    212 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
    213 %
    214 %  CLICatchException() will report exceptions, either just non-fatal warnings
    215 %  only, or all errors, according to 'all_execeptions' boolean argument.
    216 %
    217 %  The function returns true if errors are fatal, in which case the caller
    218 %  should abort and re-call with an 'all_exceptions' argument of true before
    219 %  quitting.
    220 %
    221 %  The cut-off level between fatal and non-fatal may be controlled by options
    222 %  (FUTURE), but defaults to 'Error' exceptions.
    223 %
    224 %  The format of the CLICatchException method is:
    225 %
    226 %    MagickBooleanType CLICatchException(MagickCLI *cli_wand,
    227 %              const MagickBooleanType all_exceptions );
    228 %
    229 %  Arguments are
    230 %
    231 %    o cli_wand:   The Wand CLI that holds the exception Information
    232 %
    233 %    o all_exceptions:   Report all exceptions, including the fatal one
    234 %
    235 */
    236 WandExport MagickBooleanType CLICatchException(MagickCLI *cli_wand,
    237   const MagickBooleanType all_exceptions)
    238 {
    239   MagickBooleanType
    240     status;
    241 
    242   assert(cli_wand != (MagickCLI *) NULL);
    243   assert(cli_wand->signature == MagickWandSignature);
    244   assert(cli_wand->wand.signature == MagickWandSignature);
    245   if (cli_wand->wand.debug != MagickFalse)
    246     (void) LogMagickEvent(WandEvent,GetMagickModule(),"%s",cli_wand->wand.name);
    247 
    248   /*
    249     FUTURE: '-regard_warning' should make this more sensitive.
    250     Note pipelined options may like more control over this level
    251   */
    252 
    253   status=cli_wand->wand.exception->severity > ErrorException ? MagickTrue :
    254     MagickFalse;
    255 
    256   if ((status == MagickFalse) || (all_exceptions != MagickFalse))
    257     CatchException(cli_wand->wand.exception); /* output and clear exceptions */
    258 
    259   return(status);
    260 }
    261 
    262 /*
    264 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
    265 %                                                                             %
    266 %                                                                             %
    267 %                                                                             %
    268 +   C L I L o g E v e n t                                                     %
    269 %                                                                             %
    270 %                                                                             %
    271 %                                                                             %
    272 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
    273 %
    274 % CLILogEvent() is a wrapper around LogMagickEvent(), adding to it the
    275 % location of the option that is (about) to be executed.
    276 %
    277 */
    278 WandExport MagickBooleanType CLILogEvent(MagickCLI *cli_wand,
    279      const LogEventType type,const char *module,const char *function,
    280      const size_t line,const char *format,...)
    281 {
    282   char
    283     new_format[MagickPathExtent];
    284 
    285   MagickBooleanType
    286     status;
    287 
    288   va_list
    289     operands;
    290 
    291   if (IsEventLogging() == MagickFalse)
    292     return(MagickFalse);
    293 
    294   /* HACK - prepend the CLI location to format string.
    295      The better way would be add more arguments to to the 'va' oparands
    296      list, but that does not appear to be possible! So we do some
    297      pre-formating of the location info here.
    298   */
    299   (void) FormatLocaleString(new_format,MagickPathExtent,cli_wand->location,
    300        cli_wand->filename, cli_wand->line, cli_wand->column);
    301   (void) ConcatenateMagickString(new_format," ",MagickPathExtent);
    302   (void) ConcatenateMagickString(new_format,format,MagickPathExtent);
    303 
    304   va_start(operands,format);
    305   status=LogMagickEventList(type,module,function,line,new_format,operands);
    306   va_end(operands);
    307 
    308   return(status);
    309 }
    310 
    311 /*
    313 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
    314 %                                                                             %
    315 %                                                                             %
    316 %                                                                             %
    317 +   C L I T h r o w E x c e p t i o n                                         %
    318 %                                                                             %
    319 %                                                                             %
    320 %                                                                             %
    321 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
    322 %
    323 % CLIThrowException() is a wrapper around ThrowMagickException(), adding to
    324 % it the location of the option that caused the exception to occur.
    325 */
    326 WandExport MagickBooleanType CLIThrowException(MagickCLI *cli_wand,
    327   const char *module,const char *function,const size_t line,
    328   const ExceptionType severity,const char *tag,const char *format,...)
    329 {
    330   char
    331     new_format[MagickPathExtent];
    332 
    333   size_t
    334     len;
    335 
    336   MagickBooleanType
    337     status;
    338 
    339   va_list
    340     operands;
    341 
    342   /* HACK - append location to format string.
    343      The better way would be add more arguments to to the 'va' oparands
    344      list, but that does not appear to be possible! So we do some
    345      pre-formating of the location info here.
    346   */
    347   (void) CopyMagickString(new_format,format,MagickPathExtent);
    348   (void) ConcatenateMagickString(new_format," ",MagickPathExtent);
    349 
    350   len=strlen(new_format);
    351   (void) FormatLocaleString(new_format+len,MagickPathExtent-len,
    352     cli_wand->location,cli_wand->filename,cli_wand->line,cli_wand->column);
    353 
    354   va_start(operands,format);
    355   status=ThrowMagickExceptionList(cli_wand->wand.exception,module,function,
    356     line,severity,tag,new_format,operands);
    357   va_end(operands);
    358   return(status);
    359 }
    360