/* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % S e t M a g i c k S e c u r i t y P o l i c y % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % SetMagickSecurityPolicy() sets the ImageMagick security policy. It returns % MagickFalse if the policy is already set or if the policy does not parse. % % The format of the SetMagickSecurityPolicy method is: % % MagickBooleanType SetMagickSecurityPolicy(const char *policy, % ExceptionInfo *exception) % % A description of each parameter follows: % % o policy: the security policy in the XML format. % % o exception: return any errors or warnings in this structure. % */ MagickExport MagickBooleanType SetMagickSecurityPolicy(const char *policy, ExceptionInfo *exception) { PolicyInfo *p; MagickBooleanType status; assert(exception != (ExceptionInfo *) NULL); if (policy == (const char *) NULL) return(MagickFalse); if (IsPolicyCacheInstantiated(exception) == MagickFalse) return(MagickFalse); LockSemaphoreInfo(policy_semaphore); ResetLinkedListIterator(policy_cache); p=(PolicyInfo *) GetNextValueInLinkedList(policy_cache); if ((p != (PolicyInfo *) NULL) && (p->domain != UndefinedPolicyDomain)) { UnlockSemaphoreInfo(policy_semaphore); return(MagickFalse); } UnlockSemaphoreInfo(policy_semaphore); status=LoadPolicyCache(policy_cache,policy,"[user-policy]",0,exception); if (status == MagickFalse) return(MagickFalse); return(ResourceComponentGenesis()); }
/* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % + G e t P o l i c y I n f o % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % GetPolicyInfo() searches the policy list for the specified name and if found % returns attributes for that policy. % % The format of the GetPolicyInfo method is: % % PolicyInfo *GetPolicyInfo(const char *name,ExceptionInfo *exception) % % A description of each parameter follows: % % o name: the policy name. % % o exception: return any errors or warnings in this structure. % */ static PolicyInfo *GetPolicyInfo(const char *name,ExceptionInfo *exception) { char policyname[MagickPathExtent]; register PolicyInfo *p; register char *q; assert(exception != (ExceptionInfo *) NULL); if (IsPolicyCacheInstantiated(exception) == MagickFalse) return((PolicyInfo *) NULL); /* Strip names of whitespace. */ *policyname='\0'; if (name != (const char *) NULL) (void) CopyMagickString(policyname,name,MagickPathExtent); for (q=policyname; *q != '\0'; q++) { if (isspace((int) ((unsigned char) *q)) == 0) continue; (void) CopyMagickString(q,q+1,MagickPathExtent); q--; } /* Search for policy tag. */ LockSemaphoreInfo(policy_semaphore); ResetLinkedListIterator(policy_cache); p=(PolicyInfo *) GetNextValueInLinkedList(policy_cache); if ((name == (const char *) NULL) || (LocaleCompare(name,"*") == 0)) { UnlockSemaphoreInfo(policy_semaphore); return(p); } while (p != (PolicyInfo *) NULL) { if (LocaleCompare(policyname,p->name) == 0) break; p=(PolicyInfo *) GetNextValueInLinkedList(policy_cache); } if (p != (PolicyInfo *) NULL) (void) InsertValueInLinkedList(policy_cache,0, RemoveElementByValueFromLinkedList(policy_cache,p)); UnlockSemaphoreInfo(policy_semaphore); return(p); }