File

+
−
+
−local xmppstream = require "util.xmppstream";
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−
+
−describe("util.xmppstream", function()
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−	local function test(xml, expect_success, ex)
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−		local stanzas = {};
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−		local session = { notopen = true };
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−		local callbacks = {
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−			stream_ns = "streamns";
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−			stream_tag = "stream";
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−			default_ns = "stanzans";
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−			streamopened = function (_session)
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−				assert.are.equal(session, _session);
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−				assert.are.equal(session.notopen, true);
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−				_session.notopen = nil;
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−				return true;
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−			end;
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−			handlestanza = function (_session, stanza)
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−				assert.are.equal(session, _session);
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−				assert.are.equal(_session.notopen, nil);
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−				table.insert(stanzas, stanza);
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−			end;
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−			streamclosed = function (_session)
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−				assert.are.equal(session, _session);
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−				assert.are.equal(_session.notopen, nil);
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−				_session.notopen = nil;
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−			end;
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−		}
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−		if type(ex) == "table" then
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−			for k, v in pairs(ex) do
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−				if k ~= "_size_limit" then
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−					callbacks[k] = v;
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−				end
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−			end
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−		end
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−		local stream = xmppstream.new(session, callbacks, ex and ex._size_limit or nil);
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−		local ok, err = pcall(function ()
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−			assert(stream:feed(xml));
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−		end);
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−
+
−		if ok and type(expect_success) == "function" then
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−			expect_success(stanzas);
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−		end
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−		assert.are.equal(not not ok, not not expect_success, "Expected "..(expect_success and ("success ("..tostring(err)..")") or "failure"));
+
−	end
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−
+
−	local function test_stanza(stanza, expect_success, ex)
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−		return test([[<stream:stream xmlns:stream="streamns" xmlns="stanzans">]]..stanza, expect_success, ex);
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−	end
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−
+
−	describe("#new()", function()
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−		it("should work", function()
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−			test([[<stream:stream xmlns:stream="streamns"/>]], true);
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−			test([[<stream xmlns="streamns"/>]], true);
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−
+
−			-- Incorrect stream tag name should be rejected
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−			test([[<stream1 xmlns="streamns"/>]], false);
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−			-- Incorrect stream namespace should be rejected
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−			test([[<stream xmlns="streamns1"/>]], false);
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−			-- Invalid XML should be rejected
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−			test("<>", false);
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−
+
−			test_stanza("<message/>", function (stanzas)
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−				assert.are.equal(#stanzas, 1);
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−				assert.are.equal(stanzas[1].name, "message");
+
−			end);
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−			test_stanza("< message>>>>/>\n", false);
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−
+
−			test_stanza([[<x xmlns:a="b">
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−				<y xmlns:a="c">
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−					<a:z/>
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−				</y>
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−				<a:z/>
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−			</x>]], function (stanzas)
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−				assert.are.equal(#stanzas, 1);
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−				local s = stanzas[1];
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−				assert.are.equal(s.name, "x");
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−				assert.are.equal(#s.tags, 2);
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−
+
−				assert.are.equal(s.tags[1].name, "y");
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−				assert.are.equal(s.tags[1].attr.xmlns, nil);
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−
+
−				assert.are.equal(s.tags[1].tags[1].name, "z");
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−				assert.are.equal(s.tags[1].tags[1].attr.xmlns, "c");
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−
+
−				assert.are.equal(s.tags[2].name, "z");
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−				assert.are.equal(s.tags[2].attr.xmlns, "b");
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−
+
−				assert.are.equal(s.namespaces, nil);
+
−			end);
+
−		end);
+
−	end);
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−
+
−	it("should allow an XML declaration", function ()
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−		test([[<?xml version="1.0" encoding="UTF-8"?><stream xmlns="streamns"/>]], true);
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−		test([[<?xml version="1.0" encoding="UTF-8" standalone="yes" ?><stream xmlns="streamns"/>]], true);
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−		test([[<?xml version="1.0" encoding="utf-8" ?><stream xmlns="streamns"/>]], true);
+
−	end);
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−
+
−	it("should not accept XML versions other than 1.0", function ()
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−		test([[<?xml version="1.1" encoding="utf-8" ?><stream xmlns="streamns"/>]], false);
+
−	end);
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−
+
−	it("should not allow a misplaced XML declaration", function ()
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−		test([[<stream xmlns="streamns"><?xml version="1.0" encoding="UTF-8"?></stream>]], false);
+
−	end);
+
−
+
−	describe("should forbid restricted XML:", function ()
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−		it("comments", function ()
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−			test_stanza("<!-- hello world -->", false);
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−		end);
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−		it("DOCTYPE", function ()
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−			test([[<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE stream SYSTEM "mydtd.dtd">]], false);
+
−		end);
+
−		it("incorrect encoding specification", function ()
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−			-- This is actually caught by the underlying XML parser
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−			test([[<?xml version="1.0" encoding="UTF-16"?><stream xmlns="streamns"/>]], false);
+
−		end);
+
−		it("non-UTF8 encodings: ISO-8859-1", function ()
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−			test([[<?xml version="1.0" encoding="ISO-8859-1"?><stream xmlns="streamns"/>]], false);
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−		end);
+
−		it("non-UTF8 encodings: UTF-16", function ()
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−			-- <?xml version="1.0" encoding="UTF-16"?><stream xmlns="streamns"/>
+
−			-- encoded into UTF-16
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−			local hx = ([[fffe3c003f0078006d006c002000760065007200730069006f006e003d00
+
−			220031002e0030002200200065006e0063006f00640069006e0067003d00
+
−			22005500540046002d003100360022003f003e003c007300740072006500
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−			61006d00200078006d006c006e0073003d00220073007400720065006100
+
−			6d006e00730022002f003e00]]):gsub("%x%x", function (c) return string.char(tonumber(c, 16)); end);
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−			test(hx, false);
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−		end);
+
−		it("processing instructions", function ()
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−			test([[<stream xmlns="streamns"><?xml-stylesheet type="text/xsl" href="style.xsl"?></stream>]], false);
+
−		end);
+
−	end);
+
−end);