hgweb: Respond with HTTP 403 for disabled archive types instead of 404

This makes it easier for clients/users to distinct between supported
but disabled and unsupported archive types.

mercurial/hgweb/common.py

@@ -11,6 +11,7 b' import errno, mimetypes, os'
 HTTP_OK = 200
 HTTP_BAD_REQUEST = 400
 HTTP_UNAUTHORIZED = 401
+HTTP_FORBIDDEN = 403
 HTTP_NOT_FOUND = 404
 HTTP_METHOD_NOT_ALLOWED = 405
 HTTP_SERVER_ERROR = 500

mercurial/hgweb/webcommands.py

@@ -12,7 +12,7 b' from mercurial.node import short, hex, n'
 from mercurial.util import binary, datestr
 from mercurial.repo import RepoError
 from common import paritygen, staticfile, get_contact, ErrorResponse
-from common import HTTP_OK, HTTP_NOT_FOUND
+from common import HTTP_OK, HTTP_FORBIDDEN, HTTP_NOT_FOUND
 from mercurial import graphmod, util
 
 # __all__ is populated with the allowed commands. Be sure to add to it if
@@ -535,11 +535,15 b' def archive(web, req, tmpl):'
     allowed = web.configlist("web", "allow_archive")
     key = req.form['node'][0]
 
-    if not (type_ in web.archives and (type_ in allowed or
-        web.configbool("web", "allow" + type_, False))):
+    if type_ not in web.archives:
         msg = 'Unsupported archive type: %s' % type_
         raise ErrorResponse(HTTP_NOT_FOUND, msg)
 
+    if not ((type_ in allowed or
+        web.configbool("web", "allow" + type_, False))):
+        msg = 'Archive type not allowed: %s' % type_
+        raise ErrorResponse(HTTP_FORBIDDEN, msg)
+
     reponame = re.sub(r"\W+", "-", os.path.basename(web.reponame))
     cnode = web.repo.lookup(key)
     arch_version = key

tests/test-archive

@@ -12,10 +12,36 b' echo bletch>baz/bletch'
 hg commit -Am 3 -d '1000000000 0'
 echo "[web]" >> .hg/hgrc
 echo "name = test-archive" >> .hg/hgrc
-echo "allow_archive = gz bz2, zip" >> .hg/hgrc
+cp .hg/hgrc .hg/hgrc-base
+
+# check http return codes
+test_archtype() {
+    echo "allow_archive = $1" >> .hg/hgrc
+    hg serve -p $HGPORT -d --pid-file=hg.pid -E errors.log
+    cat hg.pid >> $DAEMON_PIDS
+    echo % $1 allowed should give 200
+    "$TESTDIR/get-with-headers.py" localhost:$HGPORT "/archive/tip.$2" | head -n 1
+    echo % $3 and $4 disallowed should both give 403
+    "$TESTDIR/get-with-headers.py" localhost:$HGPORT "/archive/tip.$3" | head -n 1
+    "$TESTDIR/get-with-headers.py" localhost:$HGPORT "/archive/tip.$4" | head -n 1
+    kill `cat hg.pid`
+    cat errors.log
+    cp .hg/hgrc-base .hg/hgrc
+}
+
+echo
+test_archtype gz tar.gz tar.bz2 zip
+test_archtype bz2 tar.bz2 zip tar.gz
+test_archtype zip zip tar.gz tar.bz2
+
+echo "allow_archive = gz bz2 zip" >> .hg/hgrc
 hg serve -p $HGPORT -d --pid-file=hg.pid -E errors.log
 cat hg.pid >> $DAEMON_PIDS
 
+echo % invalid arch type should give 404
+"$TESTDIR/get-with-headers.py" localhost:$HGPORT "/archive/tip.invalid" | head -n 1
+echo
+
 TIP=`hg id -v | cut -f1 -d' '`
 QTIP=`hg id -q`
 cat > getarchive.py <<EOF

tests/test-archive.out

@@ -1,6 +1,25 b''
 adding foo
 adding bar
 adding baz/bletch
+
+% gz allowed should give 200
+200 Script output follows
+% tar.bz2 and zip disallowed should both give 403
+403 Forbidden
+403 Forbidden
+% bz2 allowed should give 200
+200 Script output follows
+% zip and tar.gz disallowed should both give 403
+403 Forbidden
+403 Forbidden
+% zip allowed should give 200
+200 Script output follows
+% tar.gz and tar.bz2 disallowed should both give 403
+403 Forbidden
+403 Forbidden
+% invalid arch type should give 404
+404 Not Found
+
 test-archive-TIP/.hg_archival.txt
 test-archive-TIP/bar
 test-archive-TIP/baz/bletch