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2010-03-12 Tatsuhiro Tsujikawa <t-tujikawa@users.sourceforge.net> 

Inspect all xt in magnet to find urn:btih.
	* src/bittorrent_helper.cc
	* test/BittorrentHelperTest.cc
pull/1/head
Tatsuhiro Tsujikawa 2010-03-12 15:00:28 +00:00
parent 542a06de6d
commit 7bbc5769a5
3 changed files with 33 additions and 17 deletions
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6
ChangeLog
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@ -1,3 +1,9 @@
2010-03-12 Tatsuhiro Tsujikawa <t-tujikawa@users.sourceforge.net>
Inspect all xt in magnet to find urn:btih.
* src/bittorrent_helper.cc
* test/BittorrentHelperTest.cc
2010-03-12 Tatsuhiro Tsujikawa <t-tujikawa@users.sourceforge.net>
Use global option for DHTSetup.

38
src/bittorrent_helper.cc
View File

@ -863,25 +863,29 @@ BDE parseMagnet(const std::string& magnet)
if(!r.containsKey("xt")) {
throw DL_ABORT_EX("Missing xt parameter in Magnet URI.");
}
std::string infoHash;
const BDE& xts = r["xt"];
if(xts.size() == 0 || !util::startsWith(xts[0].s(), "urn:btih:")) {
throw DL_ABORT_EX("Bad BitTorrent Magnet URI.");
for(BDE::List::const_iterator xtiter = xts.listBegin(),
eoi = xts.listEnd(); xtiter != eoi && infoHash.empty(); ++xtiter) {
if(util::startsWith((*xtiter).s(), "urn:btih:")) {
std::string xtarg = (*xtiter).s().substr(9);
size_t size = xtarg.size();
if(size == 32) {
std::string rawhash = base32::decode(xtarg);
if(rawhash.size() == 20) {
infoHash.swap(rawhash);
}
} else if(size == 40) {
std::string rawhash = util::fromHex(xtarg);
if(!rawhash.empty()) {
infoHash.swap(rawhash);
}
}
}
}
std::string infoHash = xts[0].s().substr(9);
if(infoHash.size() == 32) {
std::string rawhash = base32::decode(infoHash);
if(rawhash.size() != 20) {
throw DL_ABORT_EX("Invalid BitTorrent Info Hash.");
}
infoHash = rawhash;
} else if(infoHash.size() == 40) {
std::string rawhash = util::fromHex(infoHash);
if(rawhash.empty()) {
throw DL_ABORT_EX("Invalid BitTorrent Info Hash.");
}
infoHash = rawhash;
} else {
throw DL_ABORT_EX("Invalid BitTorrent Info Hash.");
if(infoHash.empty()) {
throw DL_ABORT_EX("Bad BitTorrent Magnet URI. "
"No valid BitTorrent Info Hash found.");
}
BDE announceList = BDE::list();
if(r.containsKey("tr")) {

6
test/BittorrentHelperTest.cc
View File

@ -729,6 +729,12 @@ void BittorrentHelperTest::testParseMagnet()
(std::string("[METADATA]248d0a1cd08284299de78d5c1ed359bb46717d8c"),
attrs[bittorrent::NAME].s());
CPPUNIT_ASSERT(attrs[bittorrent::ANNOUNCE_LIST].size() == 0);
magnet = "magnet:?xt=urn:sha1:7899bdb90a026c746f3cbc10839dd9b2a2a3e985&"
"xt=urn:btih:248d0a1cd08284299de78d5c1ed359bb46717d8c";
attrs = bittorrent::parseMagnet(magnet);
CPPUNIT_ASSERT_EQUAL(std::string("248d0a1cd08284299de78d5c1ed359bb46717d8c"),
util::toHex(attrs[bittorrent::INFO_HASH].s()));
}
void BittorrentHelperTest::testParseMagnet_base32()