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NIP-40 expiration timestamp

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This commit is contained in:
Doug Hoyte
2023-02-08 06:48:38 -05:00
parent b32999cee8
commit 7661865bcc
9 changed files with 88 additions and 55 deletions
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18
src/events.cpp
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@ -19,13 +19,14 @@ std::string nostrJsonToFlat(const tao::json::value &v) {
std::vector<flatbuffers::Offset<NostrIndex::TagGeneral>> tagsGeneral;
std::vector<flatbuffers::Offset<NostrIndex::TagFixed32>> tagsFixed32;
uint64_t expiration = 0;
if (v.at("tags").get_array().size() > cfg().events__maxNumTags) throw herr("too many tags: ", v.at("tags").get_array().size());
for (auto &tagArr : v.at("tags").get_array()) {
auto &tag = tagArr.get_array();
if (tag.size() < 2) throw herr("too few fields in tag");
auto tagName = tag.at(0).get_string();
if (tagName.size() != 1) continue; // only single-char tags need indexing
auto tagVal = tag.at(1).get_string();
@ -37,8 +38,14 @@ std::string nostrJsonToFlat(const tao::json::value &v) {
(uint8_t)tagName[0],
(NostrIndex::Fixed32Bytes*)tagVal.data()
));
} else {
if (tagVal.size() < 1 || tagVal.size() > cfg().events__maxTagValSize) throw herr("tag val too small/large: ", tagVal.size());
} else if (tagName == "expiration") {
if (expiration == 0) {
expiration = parseUint64(tagVal);
if (expiration == 0) expiration = 1; // special value to indicate expiration of 0 was set
}
} else if (tagName.size() == 1) {
if (tagVal.size() == 0) throw herr("tag val empty");
if (tagVal.size() > cfg().events__maxTagValSize) throw herr("tag val too large: ", tagVal.size());
if (tagVal.size() <= MAX_INDEXED_TAG_VAL_SIZE) {
tagsGeneral.emplace_back(NostrIndex::CreateTagGeneral(builder,
@ -57,7 +64,8 @@ std::string nostrJsonToFlat(const tao::json::value &v) {
created_at,
kind,
builder.CreateVector<flatbuffers::Offset<NostrIndex::TagGeneral>>(tagsGeneral),
builder.CreateVector<flatbuffers::Offset<NostrIndex::TagFixed32>>(tagsFixed32)
builder.CreateVector<flatbuffers::Offset<NostrIndex::TagFixed32>>(tagsFixed32),
expiration
);
builder.Finish(eventPtr);
@ -122,6 +130,8 @@ void verifyEventTimestamp(const NostrIndex::Event *flat) {
if (ts < earliest) throw herr("created_at too early");
if (ts > latest || ts > MAX_TIMESTAMP) throw herr("created_at too late");
if (flat->expiration() != 0 && flat->expiration() <= now) throw herr("event expired");
}
void parseAndVerifyEvent(const tao::json::value &origJson, secp256k1_context *secpCtx, bool verifyMsg, bool verifyTime, std::string &flatStr, std::string &jsonStr) {