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0ad/source/ps/tests/test_ModIo.h
Angen ac7dc057df Add "Invalid signature" reason to modio 
When signature is invalid, it does not comunicate the reason clearly.
Fix this.
Also remove silent failure in case of signature is not valid.

Differential revision: D3478
Reviewed by: @bb
This was SVN commit r26111.
2021-12-25 19:31:51 +00:00

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/* Copyright (C) 2021 Wildfire Games.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include "lib/self_test.h"
#include "ps/CLogger.h"
#include "ps/ModIo.h"
#include "scriptinterface/ScriptInterface.h"
#include <sodium.h>
class TestModIo : public CxxTest::TestSuite
{
public:
void setUp()
{
if (sodium_init() < 0)
LOGERROR("failed to initialize libsodium");
}
// TODO: One could probably fuzz these parsing functions to
// make sure they handle malformed input nicely.
void test_id_parsing()
{
ScriptInterface script("Test", "Test", g_ScriptContext);
#define TS_ASSERT_PARSE(input, expected_error, expected_id) \
{ \
TestLogger logger; \
int id = -1; \
std::string err; \
TS_ASSERT(!ModIo::ParseGameIdResponse(script, input, id, err)); \
TS_ASSERT_STR_EQUALS(err, expected_error); \
TS_ASSERT_EQUALS(id, expected_id); \
}
// Various malformed inputs
TS_ASSERT_PARSE("", "Failed to parse response as JSON.", -1);
TS_ASSERT_PARSE("()", "Failed to parse response as JSON.", -1);
TS_ASSERT_PARSE("[]", "data property not an object.", -1);
TS_ASSERT_PARSE("null", "response not an object.", -1);
TS_ASSERT_PARSE("{}", "data property not an object.", -1);
TS_ASSERT_PARSE("{\"data\": null}", "data property not an object.", -1);
TS_ASSERT_PARSE("{\"data\": {}}", "data property not an array with at least one element.", -1);
TS_ASSERT_PARSE("{\"data\": []}", "data property not an array with at least one element.", -1);
TS_ASSERT_PARSE("{\"data\": [null]}", "First element not an object.", -1);
TS_ASSERT_PARSE("{\"data\": [false]}", "First element not an object.", -1);
TS_ASSERT_PARSE("{\"data\": [{}]}", "No id property in first element.", -1);
TS_ASSERT_PARSE("{\"data\": [[]]}", "No id property in first element.", -1);
// Various invalid IDs
TS_ASSERT_PARSE("{\"data\": [{\"id\": null}]}", "id property not a number.", -1);
TS_ASSERT_PARSE("{\"data\": [{\"id\": {}}]}", "id property not a number.", -1);
TS_ASSERT_PARSE("{\"data\": [{\"id\": true}]}", "id property not a number.", -1);
TS_ASSERT_PARSE("{\"data\": [{\"id\": -12}]}", "Invalid id.", -1);
TS_ASSERT_PARSE("{\"data\": [{\"id\": 0}]}", "Invalid id.", -1);
#undef TS_ASSERT_PARSE
// Correctly formed input
{
TestLogger logger;
int id = -1;
std::string err;
TS_ASSERT(ModIo::ParseGameIdResponse(script, "{\"data\": [{\"id\": 42}]}", id, err));
TS_ASSERT(err.empty());
TS_ASSERT_EQUALS(id, 42);
}
}
void test_mods_parsing()
{
ScriptInterface script("Test", "Test", g_ScriptContext);
PKStruct pk;
const std::string pk_str = "RWTA6VIoth2Q1PFLsRILr3G7NB+mwwO8BSGoXs63X6TQgNGM4cE8Pvd6";
size_t bin_len = 0;
if (sodium_base642bin((unsigned char*)&pk, sizeof pk, pk_str.c_str(), pk_str.size(), NULL, &bin_len, NULL, sodium_base64_VARIANT_ORIGINAL) != 0 || bin_len != sizeof pk)
LOGERROR("failed to decode base64 public key");
#define TS_ASSERT_PARSE(input, expected_error) \
{ \
TestLogger logger; \
std::vector<ModIoModData> mods; \
std::string err; \
TS_ASSERT(!ModIo::ParseModsResponse(script, input, mods, pk, err)); \
TS_ASSERT_STR_EQUALS(err, expected_error); \
TS_ASSERT_EQUALS(mods.size(), 0); \
}
TS_ASSERT_PARSE("", "Failed to parse response as JSON.");
TS_ASSERT_PARSE("()", "Failed to parse response as JSON.");
TS_ASSERT_PARSE("null", "response not an object.");
TS_ASSERT_PARSE("[]", "data property not an object.");
TS_ASSERT_PARSE("{}", "data property not an object.");
TS_ASSERT_PARSE("{\"data\": null}", "data property not an object.");
TS_ASSERT_PARSE("{\"data\": {}}", "data property not an array with at least one element.");
TS_ASSERT_PARSE("{\"data\": []}", "data property not an array with at least one element.");
#undef TS_ASSERT_PARSE
#define TS_ASSERT_PARSE(input, expected_error) \
{ \
TestLogger logger; \
std::vector<ModIoModData> mods; \
std::string err; \
TS_ASSERT(ModIo::ParseModsResponse(script, input, mods, pk, err)); \
TS_ASSERT_EQUALS(mods.size(), 1); \
TS_ASSERT_STR_EQUALS(mods.at(0).properties.at("error"), expected_error); \
TS_ASSERT_EQUALS(mods.at(0).properties.at("invalid"), "true"); \
}
TS_ASSERT_PARSE("{\"data\": [null]}", "Failed to get array element object.");
TS_ASSERT_PARSE("{\"data\": [false]}", "Failed to get array element object.");
TS_ASSERT_PARSE("{\"data\": [true]}", "Failed to get array element object.");
TS_ASSERT_PARSE("{\"data\": [{}]}", "Failed to get name from el.");
TS_ASSERT_PARSE("{\"data\": [[]]}", "Failed to get name from el.");
TS_ASSERT_PARSE("{\"data\": [{\"foo\":\"bar\"}]}", "Failed to get name from el.");
TS_ASSERT_PARSE("{\"data\": [{\"name\":null}]}", "Failed to get name from el.");
TS_ASSERT_PARSE("{\"data\": [{\"name\":42}]}", "Failed to get name_id from el."); // 'name' works, integers implicitly convertible to string.
TS_ASSERT_PARSE("{\"data\": [{\"name\":false}]}", "Failed to get name_id from el."); // 'name' works, booleans implicitly convertible to string.
TS_ASSERT_PARSE("{\"data\": [{\"name\":{}}]}", "Failed to get name from el."); // Fails at 'name', not convertible to string.
TS_ASSERT_PARSE("{\"data\": [{\"name\":[]}]}", "Failed to get name from el."); // Fails at 'name', not convertible to string.
TS_ASSERT_PARSE("{\"data\": [{\"name\":\"foobar\"}]}", "Failed to get name_id from el.");
TS_ASSERT_PARSE("{\"data\": [{\"name\":\"\",\"name_id\":\"\",\"summary\":\"\"}]}", "modfile not an object.");
TS_ASSERT_PARSE("{\"data\": [{\"name\":\"\",\"name_id\":\"\",\"summary\":\"\",\"modfile\":null}]}", "modfile not an object.");
TS_ASSERT_PARSE("{\"data\": [{\"name\":\"\",\"name_id\":\"\",\"summary\":\"\",\"modfile\":[]}]}", "Failed to get version from modFile.");
TS_ASSERT_PARSE("{\"data\": [{\"name\":\"\",\"name_id\":\"\",\"summary\":\"\",\"modfile\":{}}]}", "Failed to get version from modFile.");
TS_ASSERT_PARSE("{\"data\": [{\"name\":\"\",\"name_id\":\"\",\"summary\":\"\",\"modfile\":{\"version\":null}}]}", "Failed to get version from modFile.");
TS_ASSERT_PARSE("{\"data\": [{\"name\":\"\",\"name_id\":\"\",\"summary\":\"\",\"modfile\":{\"version\":1}}]}", "Failed to get filesize from modFile.");
TS_ASSERT_PARSE("{\"data\": [{\"name\":\"\",\"name_id\":\"\",\"summary\":\"\",\"modfile\":{\"version\":\"\",\"filesize\":1234}}]}", "Failed to get md5 from filehash.");
TS_ASSERT_PARSE("{\"data\": [{\"name\":\"\",\"name_id\":\"\",\"summary\":\"\",\"modfile\":{\"version\":\"\",\"filesize\":1234, \"filehash\":null}}]}", "Failed to get md5 from filehash.");
TS_ASSERT_PARSE("{\"data\": [{\"name\":\"\",\"name_id\":\"\",\"summary\":\"\",\"modfile\":{\"version\":\"\",\"filesize\":1234, \"filehash\":{}}}]}", "Failed to get md5 from filehash.");
TS_ASSERT_PARSE("{\"data\": [{\"name\":\"\",\"name_id\":\"\",\"summary\":\"\",\"modfile\":{\"version\":\"\",\"filesize\":1234, \"filehash\":{\"md5\":null}}}]}", "Failed to get md5 from filehash.");
TS_ASSERT_PARSE("{\"data\": [{\"name\":\"\",\"name_id\":\"\",\"summary\":\"\",\"modfile\":{\"version\":\"\",\"filesize\":1234, \"filehash\":{\"md5\":\"abc\"}}}]}", "Failed to get binary_url from download.");
TS_ASSERT_PARSE("{\"data\": [{\"name\":\"\",\"name_id\":\"\",\"summary\":\"\",\"modfile\":{\"version\":\"\",\"filesize\":1234, \"filehash\":{\"md5\":\"abc\"}, \"download\":null}}]}", "Failed to get binary_url from download."); // also some script value conversion check warning
TS_ASSERT_PARSE("{\"data\": [{\"name\":\"\",\"name_id\":\"\",\"summary\":\"\",\"modfile\":{\"version\":\"\",\"filesize\":1234, \"filehash\":{\"md5\":\"abc\"}, \"download\":{\"binary_url\":null}}}]}", "Failed to get binary_url from download.");
TS_ASSERT_PARSE("{\"data\": [{\"name\":\"\",\"name_id\":\"\",\"summary\":\"\",\"modfile\":{\"version\":\"\",\"filesize\":1234, \"filehash\":{\"md5\":\"abc\"}, \"download\":{\"binary_url\":\"\"}}}]}", "Failed to get metadata_blob from modFile.");
TS_ASSERT_PARSE("{\"data\": [{\"name\":\"\",\"name_id\":\"\",\"summary\":\"\",\"modfile\":{\"version\":\"\",\"filesize\":1234, \"filehash\":{\"md5\":\"abc\"}, \"download\":{\"binary_url\":\"\"},\"metadata_blob\":null}}]}", "Failed to get metadata_blob from modFile.");
TS_ASSERT_PARSE("{\"data\": [{\"name\":\"\",\"name_id\":\"\",\"summary\":\"\",\"modfile\":{\"version\":\"\",\"filesize\":1234, \"filehash\":{\"md5\":\"abc\"}, \"download\":{\"binary_url\":\"\"},\"metadata_blob\":1}}]}", "metadata_blob is not decoded as an object.");
TS_ASSERT_PARSE("{\"data\": [{\"name\":\"\",\"name_id\":\"\",\"summary\":\"\",\"modfile\":{\"version\":\"\",\"filesize\":1234, \"filehash\":{\"md5\":\"abc\"}, \"download\":{\"binary_url\":\"\"},\"metadata_blob\":\"\"}}]}", "Failed to parse metadata_blob as JSON.");
TS_ASSERT_PARSE("{\"data\": [{\"name\":\"\",\"name_id\":\"\",\"summary\":\"\",\"modfile\":{\"version\":\"\",\"filesize\":1234, \"filehash\":{\"md5\":\"abc\"}, \"download\":{\"binary_url\":\"\"},\"metadata_blob\":\"{}\"}}]}", "Failed to get dependencies from metadata_blob.");
TS_ASSERT_PARSE("{\"data\": [{\"name\":\"\",\"name_id\":\"\",\"summary\":\"\",\"modfile\":{\"version\":\"\",\"filesize\":1234, \"filehash\":{\"md5\":\"abc\"}, \"download\":{\"binary_url\":\"\"},\"metadata_blob\":\"{\\\"dependencies\\\":null}\"}}]}", "Failed to get dependencies from metadata_blob.");
TS_ASSERT_PARSE("{\"data\": [{\"name\":\"\",\"name_id\":\"\",\"summary\":\"\",\"modfile\":{\"version\":\"\",\"filesize\":1234, \"filehash\":{\"md5\":\"abc\"}, \"download\":{\"binary_url\":\"\"},\"metadata_blob\":\"{\\\"dependencies\\\":[]}\"}}]}", "Failed to get minisigs from metadata_blob.");
TS_ASSERT_PARSE("{\"data\": [{\"name\":\"\",\"name_id\":\"\",\"summary\":\"\",\"modfile\":{\"version\":\"\",\"filesize\":1234, \"filehash\":{\"md5\":\"abc\"}, \"download\":{\"binary_url\":\"\"},\"metadata_blob\":\"{\\\"dependencies\\\":[],\\\"minisigs\\\":null}\"}}]}", "Failed to get minisigs from metadata_blob.");
#undef TS_ASSERT_PARSE
// Correctly formed input, but no signature matching the public key
// Thus all such mods/modfiles are marked as invalid.
{
TestLogger logger;
std::vector<ModIoModData> mods;
std::string err;
TS_ASSERT(ModIo::ParseModsResponse(script, "{\"data\": [{\"name\":\"\",\"name_id\":\"\",\"summary\":\"\",\"modfile\":{\"version\":\"\",\"filesize\":1234, \"filehash\":{\"md5\":\"abc\"}, \"download\":{\"binary_url\":\"\"},\"metadata_blob\":\"{\\\"dependencies\\\":[],\\\"minisigs\\\":[]}\"}}]}", mods, pk, err));
TS_ASSERT(err.empty());
TS_ASSERT_EQUALS(mods.size(), 1);
TS_ASSERT_EQUALS(mods.at(0).properties.at("invalid"), "true");
}
// Correctly formed input (with a signature matching the public key above, and a valid global signature)
{
TestLogger logger;
std::vector<ModIoModData> mods;
std::string err;
TS_ASSERT(ModIo::ParseModsResponse(script, "{\"data\": [{\"name\":\"\",\"name_id\":\"\",\"summary\":\"\",\"modfile\":{\"version\":\"\",\"filesize\":1234, \"filehash\":{\"md5\":\"abc\"}, \"download\":{\"binary_url\":\"\"},\"metadata_blob\":\"{\\\"dependencies\\\":[],\\\"minisigs\\\":[\\\"untrusted comment: signature from minisign secret key\\\\nRUTA6VIoth2Q1HUg5bwwbCUZPcqbQ/reLXqxiaWARH5PNcwxX5vBv/mLPLgdxGsIrOyK90763+rCVTmjeYx5BDz8C0CIbGZTNQs=\\\\ntrusted comment: timestamp:1517285433\\\\tfile:tm.zip\\\\nTHwNMhK4Ogj6XA4305p1K9/ouP/DrxPcDFrPaiu+Ke6/WGlHIzBZHvmHWUedvsK6dzL31Gk8YNzscKWnZqWNCw==\\\"]}\"}}]}", mods, pk, err));
TS_ASSERT(err.empty());
TS_ASSERT_EQUALS(mods.size(), 1);
TS_ASSERT_EQUALS(mods.at(0).properties.find("invalid"), mods.at(0).properties.end());
}
}
void test_signature_parsing()
{
PKStruct pk;
const std::string pk_str = "RWTA6VIoth2Q1PFLsRILr3G7NB+mwwO8BSGoXs63X6TQgNGM4cE8Pvd6";
size_t bin_len = 0;
if (sodium_base642bin((unsigned char*)&pk, sizeof pk, pk_str.c_str(), pk_str.size(), NULL, &bin_len, NULL, sodium_base64_VARIANT_ORIGINAL) != 0 || bin_len != sizeof pk)
LOGERROR("failed to decode base64 public key");
#define TS_ASSERT_PARSE(input, expected_error) \
{ \
TestLogger logger; \
SigStruct sig; \
std::string err; \
TS_ASSERT(!ModIo::ParseSignature({input}, sig, pk, err)); \
TS_ASSERT_STR_EQUALS(err, expected_error); \
}
TS_ASSERT_PARSE({}, "Invalid (too short) sig.");
TS_ASSERT_PARSE("", "Invalid (too short) sig.");
TS_ASSERT_PARSE("\nRUTA6VIoth2Q1HUg5bwwbCUZPcqbQ/reLXqxiaWARH5PNcwxX5vBv/mLPLgdxGsIrOyK90763+rCVTmjeYx5BDz8C0CIbGZTNQs=\n\nTHwNMhK4Ogj6XA4305p1K9/ouP/DrxPcDFrPaiu+Ke6/WGlHIzBZHvmHWUedvsK6dzL31Gk8YNzscKWnZqWNCw==", "Malformed untrusted comment.");
TS_ASSERT_PARSE("unturusted comment: \nRUTA6VIoth2Q1HUg5bwwbCUZPcqbQ/reLXqxiaWARH5PNcwxX5vBv/mLPLgdxGsIrOyK90763+rCVTmjeYx5BDz8C0CIbGZTNQs=\n\nTHwNMhK4Ogj6XA4305p1K9/ouP/DrxPcDFrPaiu+Ke6/WGlHIzBZHvmHWUedvsK6dzL31Gk8YNzscKWnZqWNCw==", "Malformed untrusted comment.");
TS_ASSERT_PARSE("untrusted comment: \nRUTA6VIoth2Q1HUg5bwwbCUZPcqbQ/reLXqxiaWARH5PNcwxX5vBv/mLPLgdxGsIrOyK90763+rCVTmjeYx5BDz8C0CIbGZTNQs=\n\nTHwNMhK4Ogj6XA4305p1K9/ouP/DrxPcDFrPaiu+Ke6/WGlHIzBZHvmHWUedvsK6dzL31Gk8YNzscKWnZqWNCw==", "Malformed trusted comment.");
TS_ASSERT_PARSE("untrusted comment: \nRUTA6VIoth2Q1HUg5bwwbCUZPcqbQ/reLXqxiaWARH5PNcwxX5vBv/mLPLgdxGsIrOyK90763+rCVTmjeYx5BDz8C0CIbGZTNQs=\ntrusted comment:\nTHwNMhK4Ogj6XA4305p1K9/ouP/DrxPcDFrPaiu+Ke6/WGlHIzBZHvmHWUedvsK6dzL31Gk8YNzscKWnZqWNCw==", "Malformed trusted comment.");
TS_ASSERT_PARSE("untrusted comment: \n\ntrusted comment: \n", "Failed to decode base64 sig.");
TS_ASSERT_PARSE("untrusted comment: \nZm9vYmFyCg==\ntrusted comment: \n", "Failed to decode base64 sig.");
TS_ASSERT_PARSE("untrusted comment: \nRWTA6VIoth2Q1HUg5bwwbCUZPcqbQ/reLXqxiaWARH5PNcwxX5vBv/mLPLgdxGsIrOyK90763+rCVTmjeYx5BDz8C0CIbGZTNQs=\ntrusted comment: \n", "Only hashed minisign signatures are supported.");
TS_ASSERT_PARSE({"untrusted comment: \nRUTA5VIoth2Q1HUg5bwwbCUZPcqbQ/reLXqxiaWARH5PNcwxX5vBv/mLPLgdxGsIrOyK90763+rCVTmjeYx5BDz8C0CIbGZTNQs=\ntrusted comment: \n"}, "Invalid signature.");
TS_ASSERT_PARSE("untrusted comment: \nRUTA6VIoth2Q1HUg5bwwbCUZPcqbQ/reLXqxiaWARH5PNcwxX5vBv/mLPLgdxGsIrOyK90763+rCVTmjeYx5BDz8C0CIbGZTNQs=\ntrusted comment: \n", "Failed to decode base64 global_sig.");
TS_ASSERT_PARSE("untrusted comment: \nRUTA6VIoth2Q1HUg5bwwbCUZPcqbQ/reLXqxiaWARH5PNcwxX5vBv/mLPLgdxGsIrOyK90763+rCVTmjeYx5BDz8C0CIbGZTNQs=\ntrusted comment: timestamp:1517285433\tfile:tm.zip\nAHwNMhK4Ogj6XA4305p1K9/ouP/DrxPcDFrPaiu+Ke6/WGlHIzBZHvmHWUedvsK6dzL31Gk8YNzscKWnZqWNCw==", "Failed to verify global signature.");
// Valid signature
{
TestLogger logger;
SigStruct sig;
std::string err;
TS_ASSERT(ModIo::ParseSignature({"untrusted comment: \nRUTA6VIoth2Q1HUg5bwwbCUZPcqbQ/reLXqxiaWARH5PNcwxX5vBv/mLPLgdxGsIrOyK90763+rCVTmjeYx5BDz8C0CIbGZTNQs=\ntrusted comment: timestamp:1517285433\tfile:tm.zip\nTHwNMhK4Ogj6XA4305p1K9/ouP/DrxPcDFrPaiu+Ke6/WGlHIzBZHvmHWUedvsK6dzL31Gk8YNzscKWnZqWNCw=="}, sig, pk, err));
TS_ASSERT(err.empty());
}
#undef TS_ASSERT_PARSE
}
};
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