intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 97 insertions, 0 deletions

diff --git a/library/cpp/tvmauth/src/parser.cpp b/library/cpp/tvmauth/src/parser.cpp
new file mode 100644
index 00000000000..358de58d365
--- /dev/null
+++ b/library/cpp/tvmauth/src/parser.cpp
@@ -0,0 +1,97 @@
+#include "parser.h"
+
+#include "utils.h"
+
+#include <library/cpp/tvmauth/exception.h>
+
+#include <util/generic/strbuf.h>
+#include <util/string/split.h>
+
+#include <ctime>
+
+namespace NTvmAuth {
+    TString TParserTvmKeys::ParseStrV1(TStringBuf str) {
+        while (str && str.back() == '\n') {
+            str.Chop(1);
+        }
+
+        TStringBuf ver = str.NextTok(DELIM);
+        if (!str || !ver || ver != "1") {
+            throw TMalformedTvmKeysException() << "Malformed TVM keys";
+        }
+        TString res = NUtils::Base64url2bin(str);
+        if (res.empty()) {
+            throw TMalformedTvmKeysException() << "Malformed TVM keys";
+        }
+        return res;
+    }
+
+    TStringBuf TParserTickets::UserFlag() {
+        static const char BUF_[] = "user";
+        return TStringBuf(BUF_, sizeof(BUF_) - 1);
+    }
+
+    TStringBuf TParserTickets::ServiceFlag() {
+        static const char BUF_[] = "serv";
+        return TStringBuf(BUF_, sizeof(BUF_) - 1);
+    }
+
+    TParserTickets::TRes TParserTickets::ParseV3(TStringBuf body, const NRw::TPublicKeys& keys, TStringBuf type) {
+        TStrRes str = ParseStrV3(body, type);
+        TRes res(str.Status);
+        if (str.Status != ETicketStatus::Ok) {
+            return TRes(str.Status);
+        }
+        if (!res.Ticket.ParseFromString(str.Proto)) {
+            res.Status = ETicketStatus::Malformed;
+            return res;
+        }
+        if (res.Ticket.expirationtime() <= time(nullptr)) {
+            res.Status = ETicketStatus::Expired;
+            return res;
+        }
+
+        auto itKey = keys.find(res.Ticket.keyid());
+        if (itKey == keys.end()) {
+            res.Status = ETicketStatus::MissingKey;
+            return res;
+        }
+        if (!itKey->second.CheckSign(str.ForCheck, str.Sign)) {
+            res.Status = ETicketStatus::SignBroken;
+            return res;
+        }
+        return res;
+    }
+
+    TParserTickets::TStrRes TParserTickets::ParseStrV3(TStringBuf body, TStringBuf type) {
+        TStringBuf forCheck = body;
+        TStringBuf version = body.NextTok(DELIM);
+        if (!body || version.size() != 1) {
+            return {ETicketStatus::Malformed, {}, {}, {}};
+        }
+        if (version != "3") {
+            return {ETicketStatus::UnsupportedVersion, {}, {}, {}};
+        }
+
+        TStringBuf ticketType = body.NextTok(DELIM);
+        if (ticketType != type) {
+            return {ETicketStatus::InvalidTicketType, {}, {}, {}};
+        }
+
+        TStringBuf proto = body.NextTok(DELIM);
+        TStringBuf sign = body.NextTok(DELIM);
+
+        if (!proto || !sign || body.size() > 0) {
+            return {ETicketStatus::Malformed, {}, {}, {}};
+        }
+
+        TString protoBin = NUtils::Base64url2bin(proto);
+        TString signBin = NUtils::Base64url2bin(sign);
+
+        if (!protoBin || !signBin) {
+            return {ETicketStatus::Malformed, {}, {}, {}};
+        }
+
+        return {ETicketStatus::Ok, std::move(protoBin), std::move(signBin), forCheck.Chop(sign.size())};
+    }
+}