acl req_mime_type mime-type1 ...
    regex match agains the mime type of the request generated
    by the client. Can be used to detect file upload or some
    types HTTP tunelling requests.
    NOTE: This does NOT match the reply. You cannot use this
    to match the returned file type.

Index: squid/src/acl.c
diff -u squid/src/acl.c:1.1.1.41 squid/src/acl.c:1.1.1.41.2.1
--- squid/src/acl.c:1.1.1.41	Sun Mar  5 11:33:39 2000
+++ squid/src/acl.c	Sat Apr 22 11:07:01 2000
@@ -205,6 +205,8 @@
     if (!strcmp(s, "arp"))
 	return ACL_SRC_ARP;
 #endif
+    if (!strcmp(s, "req_mime_type"))
+	return ACL_REQ_MIME_TYPE;
     return ACL_NONE;
 }
 
@@ -263,6 +265,8 @@
     if (type == ACL_SRC_ARP)
 	return "arp";
 #endif
+    if (type == ACL_REQ_MIME_TYPE)
+	return "req_mime_type";
     return "ERROR";
 }
 
@@ -743,6 +747,9 @@
 	aclParseArpList(&A->data);
 	break;
 #endif
+    case ACL_REQ_MIME_TYPE:
+	aclParseWordList(&A->data);
+	break;
     case ACL_NONE:
     default:
 	fatal("Bad ACL type");
@@ -1481,6 +1488,13 @@
     case ACL_SRC_ARP:
 	return aclMatchArp(&ae->data, checklist->src_addr);
 #endif
+    case ACL_REQ_MIME_TYPE:
+	header = httpHeaderGetStr(&checklist->request->header,
+	    HDR_CONTENT_TYPE);
+	if (NULL == header)
+	    header = "";
+	return aclMatchRegex(ae->data, header);
+	/* NOTREACHED */
     case ACL_NONE:
     default:
 	debug(28, 0) ("aclMatchAcl: '%s' has bad type %d\n",
Index: squid/src/cf.data.pre
diff -u squid/src/cf.data.pre:1.1.1.43 squid/src/cf.data.pre:1.1.1.43.2.1
--- squid/src/cf.data.pre:1.1.1.43	Sun Mar  5 11:33:43 2000
+++ squid/src/cf.data.pre	Sat Apr 22 11:07:03 2000
@@ -1647,10 +1647,17 @@
 	  # This will be matched when the client's IP address has
 	  # more than <number> HTTP connections established.
 
+	acl req_mime_type mime-type1 ...
+	  # regex match agains the mime type of the request generated
+	  # by the client. Can be used to detect file upload or some
+	  # types HTTP tunelling requests.
+	  # NOTE: This does NOT match the reply. You cannot use this
+	  # to match the returned file type.
 
 Examples:
 acl myexample dst_as 1241
 acl password proxy_auth REQUIRED
+acl fileupload req_mime_type -i ^multipart/form-data$
 
 Defaults:
 NOCOMMENT_START
Index: squid/src/enums.h
diff -u squid/src/enums.h:1.1.1.40 squid/src/enums.h:1.1.1.40.2.1
--- squid/src/enums.h:1.1.1.40	Sun Mar  5 11:33:50 2000
+++ squid/src/enums.h	Sat Apr 22 11:07:03 2000
@@ -116,6 +116,7 @@
     ACL_SNMP_COMMUNITY,
     ACL_NETDB_SRC_RTT,
     ACL_MAXCONN,
+    ACL_REQ_MIME_TYPE,
     ACL_ENUM_MAX
 } squid_acl;