package-update/printing/cups-pdf/ForcedUser.patch.disabled

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This allows forcing all files to be created with a specific user or, if a
unknown user is forced, to create the files as AnonUser, if allowed.

  - Rene Rebe <rene@exactcode.de>

diff -ur cups-pdf-2.0beta2/extra/cups-pdf.conf cups-pdf-2.0beta2-imp/extra/cups-pdf.conf
--- cups-pdf-2.0beta2/extra/cups-pdf.conf	2005-10-26 14:15:51.000000000 +0200
+++ cups-pdf-2.0beta2-imp/extra/cups-pdf.conf	2005-12-06 19:20:01.000000000 +0100
@@ -106,6 +106,13 @@
 
 #AnonUser nobody
 
+### Key: ForcedUser
+##  fixed user for PDF creation (this might be a security issue)
+##  set this to an empty value to use the username supplied by CUPS
+### Default: <empty>
+
+#ForcedUser archiver
+
 ### Key: LowerCase
 ##  This options allows to check user names given to CUPS-PDF additionally 
 ##  against their lower case variants. This is necessary since in some 
diff -ur cups-pdf-2.0beta2/src/cups-pdf.c cups-pdf-2.0beta2-imp/src/cups-pdf.c
--- cups-pdf-2.0beta2/src/cups-pdf.c	2005-10-23 16:04:45.000000000 +0200
+++ cups-pdf-2.0beta2-imp/src/cups-pdf.c	2005-12-06 19:44:50.000000000 +0100
@@ -350,11 +350,12 @@
 }
 
 int main(int argc, char *argv[]) {
-  char *user, *dirname, *spoolfile, *outfile, *gscall, *ppcall;
+  char *dirname, *spoolfile, *outfile, *gscall, *ppcall;
   cp_string title="";
-  int size;
+  cp_string user="";
   mode_t mode;
   struct passwd *passwd;
+  int size;
   pid_t pid;
 
   if (getuid()) {
@@ -376,15 +377,12 @@
     log_event(CPSTATUS, "call contained illegal number of arguments", NULL);
   return 0;
   }
-  size=strlen(conf.userprefix)+strlen(argv[2])+1;
-  user=calloc(size, sizeof(char));
-  if (user == NULL) {
-    fputs("CUPS-PDF: failed to allocate memory\n", stderr);
-    return -2;
-  }  
-  snprintf(user, size, "%s%s", conf.userprefix, argv[2]);
+  if (*conf.forceduser != 0)
+    snprintf(user, BUFSIZE, "%s", conf.forceduser);
+  else
+    snprintf(user, BUFSIZE, "%s%s", conf.userprefix, argv[2]);
   passwd=getpwnam(user);
-  if (passwd == NULL && conf.lowercase) {
+  if (passwd == NULL && conf.lowercase && *conf.forceduser == 0) {
     log_event(CPDEBUG, "unknown user", user);
     for (size=0;size<(int) strlen(argv[2]);size++) 
       argv[2][size]=tolower(argv[2][size]);
@@ -398,7 +396,6 @@
       passwd=getpwnam(conf.anonuser);
       if (passwd == NULL) {
         log_event(CPERROR, "username for anonymous access unknown", conf.anonuser);
-        free(user);
         fclose(logfp);
         return -2;
       }
@@ -408,7 +405,6 @@
         dirname=calloc(size, sizeof(char));
         if (dirname == NULL) {
           fputs("CUPS-PDF: failed to allocate memory\n", stderr);
-          free(user);
           fclose(logfp);
           return -2;
         }  
@@ -419,7 +415,6 @@
         dirname=calloc(size, sizeof(char));
         if (dirname == NULL) {
           fputs("CUPS-PDF: failed to allocate memory\n", stderr);
-          free(user);
           fclose(logfp);
           return -2;
         }  
@@ -428,7 +423,6 @@
     }
     else {
       log_event(CPSTATUS, "anonymous access denied", user);
-      free(user);
       fclose(logfp);
       return 0;
     }
@@ -441,7 +435,6 @@
       dirname=calloc(size, sizeof(char));
       if (dirname == NULL) {
         fputs("CUPS-PDF: failed to allocate memory\n", stderr);
-        free(user);
         fclose(logfp);
         return -2;
       }  
@@ -452,7 +445,6 @@
       dirname=calloc(size, sizeof(char));
       if (dirname == NULL) {
         fputs("CUPS-PDF: failed to allocate memory\n", stderr);
-        free(user);
         fclose(logfp);
         return -2;
       }  
@@ -463,7 +455,6 @@
     }
     mode=(0666&~conf.userumask);
   }
-  free(user);
   if (prepareuser(passwd, dirname)) return -2;
   log_event(CPDEBUG, "user information prepared", NULL);
 
diff -ur cups-pdf-2.0beta2/src/cups-pdf.h cups-pdf-2.0beta2-imp/src/cups-pdf.h
--- cups-pdf-2.0beta2/src/cups-pdf.h	2005-10-23 16:03:20.000000000 +0200
+++ cups-pdf-2.0beta2-imp/src/cups-pdf.h	2005-12-06 19:14:22.000000000 +0100
@@ -40,6 +40,7 @@
 struct {
   cp_string	anondirname;
   cp_string	anonuser;
+  cp_string	forceduser;
   cp_string 	ghostscript;
   cp_string	gscall;
   cp_string	grp;
@@ -63,6 +64,7 @@
 void _set_defaults() {
   snprintf(conf.anondirname,BUFSIZE,"%s","/var/spool/cups-pdf/ANONYMOUS");
   snprintf(conf.anonuser,BUFSIZE,"%s","nobody");
+  snprintf(conf.forceduser,BUFSIZE,"%s","");
   snprintf(conf.ghostscript,BUFSIZE,"/usr/bin/gs");
   snprintf(conf.gscall,BUFSIZE,"%s","%s -q -dCompatibilityLevel=%s -dNOPAUSE -dBATCH -dSAFER -sDEVICE=pdfwrite -sOutputFile=\"%s\" -dAutoRotatePages=/PageByPage -dAutoFilterColorImages=false -dColorImageFilter=/FlateEncode -dPDFSETTINGS=/prepress -c save pop -f %s");
   snprintf(conf.grp,BUFSIZE,"%s","lp");
@@ -91,6 +93,8 @@
     strncpy(conf.anondirname,value,BUFSIZE);
   else if (!strcmp("AnonUser",key))
     strncpy(conf.anonuser,value,BUFSIZE);
+  else if (!strcmp("ForcedUser",key))
+    strncpy(conf.forceduser,value,BUFSIZE);
   else if (!strcmp("GhostScript",key))
     strncpy(conf.ghostscript,value,BUFSIZE);
   else if (!strcmp("GSCall",key))