[svn] Improvements/fixes to HTTP Content-Disposition header support.

src/ChangeLog

@@ -1,3 +1,16 @@
+2006-04-28  Mauro Tortonesi  <mauro@ferrara.linux.it>
+
+	* http.c: If Content-Disposition header is present, allow unique
+	filename generation unless -nc is given. Permit to disable parsing of
+	Content-Disposition header.
+
+	* options.h: Added option --no-content-disposition to disable parsing
+	of HTTP Content-Disposition header.
+
+	* init.c: Ditto.
+	
+	* main.c: Ditto.
+
 2006-04-11  Hrvoje Niksic  <hniksic@xemacs.org>
 
 	* hash.c (TOLOWER): Wrap macro arg in parentheses.

src/http.c

@@ -1726,33 +1726,49 @@ gethttp (struct url *u, struct http_stat *hs, int *dt, struct url *proxy)
 
   /* Determine the local filename if needed. Notice that if -O is used 
    * hstat.local_file is set by http_loop to the argument of -O. */
-  if (!hs->local_file)     
+  if (!hs->local_file)
     {
       /* Honor Content-Disposition whether possible. */
-      if (!resp_header_copy (resp, "Content-Disposition", hdrval, sizeof (hdrval))
+      if (!opt.content_disposition
+          || !resp_header_copy (resp, "Content-Disposition", 
+                                hdrval, sizeof (hdrval))
           || !parse_content_disposition (hdrval, &hs->local_file))
         {
-          /* Choose filename according to URL name. */
+          /* The Content-Disposition header is missing or broken. 
+           * Choose unique file name according to given URL. */
           hs->local_file = url_file_name (u);
         }
     }
   
+  DEBUGP (("hs->local_file is: %s %s\n", hs->local_file,
+          file_exists_p (hs->local_file) ? "(existing)" : "(not existing)"));
+  
   /* TODO: perform this check only once. */
-  if (opt.noclobber && file_exists_p (hs->local_file))
+  if (file_exists_p (hs->local_file))
     {
-      /* If opt.noclobber is turned on and file already exists, do not
-         retrieve the file */
-      logprintf (LOG_VERBOSE, _("\
+      if (opt.noclobber)
+        {
+          /* If opt.noclobber is turned on and file already exists, do not
+             retrieve the file */
+          logprintf (LOG_VERBOSE, _("\
 File `%s' already there; not retrieving.\n\n"), hs->local_file);
-      /* If the file is there, we suppose it's retrieved OK.  */
-      *dt |= RETROKF;
+          /* If the file is there, we suppose it's retrieved OK.  */
+          *dt |= RETROKF;
 
-      /* #### Bogusness alert.  */
-      /* If its suffix is "html" or "htm" or similar, assume text/html.  */
-      if (has_html_suffix_p (hs->local_file))
-        *dt |= TEXTHTML;
+          /* #### Bogusness alert.  */
+          /* If its suffix is "html" or "htm" or similar, assume text/html.  */
+          if (has_html_suffix_p (hs->local_file))
+            *dt |= TEXTHTML;
 
-      return RETROK;
+          return RETROK;
+        }
+      else
+        {
+          char *unique = unique_name (hs->local_file, true);
+          if (unique != hs->local_file)
+            xfree (hs->local_file);
+          hs->local_file = unique;
+        }
     }
 
   /* Support timestamping */
@@ -1998,11 +2014,13 @@ File `%s' already there; not retrieving.\n\n"), hs->local_file);
      content-type.  */
   if (!type ||
         0 == strncasecmp (type, TEXTHTML_S, strlen (TEXTHTML_S)) ||
-        0 == strncasecmp (type, TEXTXHTML_S, strlen (TEXTXHTML_S)))
+        0 == strncasecmp (type, TEXTXHTML_S, strlen (TEXTXHTML_S)))    
     *dt |= TEXTHTML;
   else
     *dt &= ~TEXTHTML;
 
+  DEBUGP (("TEXTHTML is %s.\n", *dt | TEXTHTML ? "on": "off"));
+
   if (opt.html_extension && (*dt & TEXTHTML))
     /* -E / --html-extension / html_extension = on was specified, and this is a
        text/html file.  If some case-insensitive variation on ".htm[l]" isn't
@@ -2121,13 +2139,6 @@ File `%s' already there; not retrieving.\n\n"), hs->local_file);
       return RETRFINISHED;
     }
 
-  /* Print fetch message, if opt.verbose.  */
-  if (opt.verbose)
-    {
-      logprintf (LOG_NOTQUIET, _("Saving to: `%s'\n"), 
-                 HYPHENP (hs->local_file) ? "STDOUT" : hs->local_file);
-    }
-    
   /* Open the local file.  */
   if (!output_stream)
     {
@@ -2164,6 +2175,13 @@ File `%s' already there; not retrieving.\n\n"), hs->local_file);
   else
     fp = output_stream;
 
+  /* Print fetch message, if opt.verbose.  */
+  if (opt.verbose)
+    {
+      logprintf (LOG_NOTQUIET, _("Saving to: `%s'\n"), 
+                 HYPHENP (hs->local_file) ? "STDOUT" : hs->local_file);
+    }
+    
   /* This confuses the timestamping code that checks for file size.
      #### The timestamping code should be smarter about file size.  */
   if (opt.save_headers && hs->restval == 0)

src/init.c

@@ -126,6 +126,7 @@ static struct {
   { "connecttimeout",	&opt.connect_timeout,	cmd_time },
   { "continue",		&opt.always_rest,	cmd_boolean },
   { "convertlinks",	&opt.convert_links,	cmd_boolean },
+  { "contentdisposition", &opt.content_disposition, cmd_boolean },
   { "cookies",		&opt.cookies,		cmd_boolean },
   { "cutdirs",		&opt.cut_dirs,		cmd_number },
 #ifdef ENABLE_DEBUG
@@ -313,6 +314,8 @@ defaults (void)
   opt.restrict_files_os = restrict_windows;
 #endif
   opt.restrict_files_ctrl = true;
+
+  opt.content_disposition = true;
 }
 
 /* Return the user's home directory (strdup-ed), or NULL if none is

src/main.c

@@ -143,6 +143,7 @@ static struct cmdline_option option_data[] =
     { "connect-timeout", 0, OPT_VALUE, "connecttimeout", -1 },
     { "continue", 'c', OPT_BOOLEAN, "continue", -1 },
     { "convert-links", 'k', OPT_BOOLEAN, "convertlinks", -1 },
+    { "content-disposition", 0, OPT_BOOLEAN, "contentdisposition", -1 },
     { "cookies", 0, OPT_BOOLEAN, "cookies", -1 },
     { "cut-dirs", 0, OPT_VALUE, "cutdirs", -1 },
     { WHEN_DEBUG ("debug"), 'd', OPT_BOOLEAN, "debug", -1 },
@@ -518,6 +519,8 @@ HTTP options:\n"),
        --post-data=STRING      use the POST method; send STRING as the data.\n"),
     N_("\
        --post-file=FILE        use the POST method; send contents of FILE.\n"),
+    N_("\
+       --no-content-disposition  don't honor Content-Disposition header.\n"),
     "\n",
 
 #ifdef HAVE_SSL

src/options.h

@@ -220,6 +220,8 @@ struct options
     prefer_none
   } prefer_family;		/* preferred address family when more
 				   than one type is available */
+  
+  bool content_disposition;	/* Honor HTTP Content-Disposition header. */
 };
 
 extern struct options opt;