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util.xmppstream: Add tests for various XML features forbidden by the RFC

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This commit is contained in:
Matthew Wild 2018-07-11 11:58:25 +01:00
parent 6fbe81217b
commit f509f546a3
1 changed files with 92 additions and 46 deletions
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52
spec/util_xmppstream_spec.lua
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@ -2,8 +2,6 @@
local xmppstream = require "util.xmppstream";
describe("util.xmppstream", function()
describe("#new()", function()
it("should work", function()
local function test(xml, expect_success, ex)
local stanzas = {};
local session = { notopen = true };
@ -35,7 +33,7 @@ describe("util.xmppstream", function()
end
end
end
local stream = xmppstream.new(session, callbacks, size_limit);
local stream = xmppstream.new(session, callbacks, ex and ex._size_limit or nil);
local ok, err = pcall(function ()
assert(stream:feed(xml));
end);
@ -50,11 +48,16 @@ describe("util.xmppstream", function()
return test([[<stream:stream xmlns:stream="streamns" xmlns="stanzans">]]..stanza, expect_success, ex);
end
describe("#new()", function()
it("should work", function()
test([[<stream:stream xmlns:stream="streamns"/>]], true);
test([[<stream xmlns="streamns"/>]], true);
-- Incorrect stream tag name should be rejected
test([[<stream1 xmlns="streamns"/>]], false);
-- Incorrect stream namespace should be rejected
test([[<stream xmlns="streamns1"/>]], false);
-- Invalid XML should be rejected
test("<>", false);
test_stanza("<message/>", function (stanzas)
@ -87,4 +90,47 @@ describe("util.xmppstream", function()
end);
end);
end);
it("should allow an XML declaration", function ()
test([[<?xml version="1.0" encoding="UTF-8"?><stream xmlns="streamns"/>]], true);
test([[<?xml version="1.0" encoding="UTF-8" standalone="yes" ?><stream xmlns="streamns"/>]], true);
test([[<?xml version="1.0" encoding="utf-8" ?><stream xmlns="streamns"/>]], true);
end);
it("should not accept XML versions other than 1.0", function ()
test([[<?xml version="1.1" encoding="utf-8" ?><stream xmlns="streamns"/>]], false);
end);
it("should not allow a misplaced XML declaration", function ()
test([[<stream xmlns="streamns"><?xml version="1.0" encoding="UTF-8"?></stream>]], false);
end);
describe("should forbid restricted XML:", function ()
it("comments", function ()
test_stanza("<!-- hello world -->", false);
end);
it("DOCTYPE", function ()
test([[<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE stream SYSTEM "mydtd.dtd">]], false);
end);
it("incorrect encoding specification", function ()
-- This is actually caught by the underlying XML parser
test([[<?xml version="1.0" encoding="UTF-16"?><stream xmlns="streamns"/>]], false);
end);
it("non-UTF8 encodings: ISO-8859-1", function ()
test([[<?xml version="1.0" encoding="ISO-8859-1"?><stream xmlns="streamns"/>]], false);
end);
it("non-UTF8 encodings: UTF-16", function ()
-- <?xml version="1.0" encoding="UTF-16"?><stream xmlns="streamns"/>
-- encoded into UTF-16
local hx = ([[fffe3c003f0078006d006c002000760065007200730069006f006e003d00
220031002e0030002200200065006e0063006f00640069006e0067003d00
22005500540046002d003100360022003f003e003c007300740072006500
61006d00200078006d006c006e0073003d00220073007400720065006100
6d006e00730022002f003e00]]):gsub("%x%x", function (c) return string.char(tonumber(c, 16)); end);
test(hx, false);
end);
it("processing instructions", function ()
test([[<stream xmlns="streamns"><?xml-stylesheet type="text/xsl" href="style.xsl"?></stream>]], false);
end);
end);
end);