diff --git a/go.mod b/go.mod index a31063a..595666a 100644 --- a/go.mod +++ b/go.mod @@ -3,9 +3,10 @@ module github.com/uma-universal-money-address/uma-go-sdk go 1.21 require ( - github.com/btcsuite/btcutil v1.0.2 + github.com/decred/dcrd/bech32 v1.1.4 github.com/decred/dcrd/dcrec/secp256k1/v4 v4.2.0 github.com/ecies/go/v2 v2.0.9 + github.com/google/uuid v1.6.0 github.com/stretchr/testify v1.8.4 ) diff --git a/go.sum b/go.sum index 92bfea7..b38d2d8 100644 --- a/go.sum +++ b/go.sum @@ -76,7 +76,6 @@ github.com/VictoriaMetrics/fastcache v1.6.0/go.mod h1:0qHz5QP0GMX4pfmMA/zt5RgfNu github.com/VictoriaMetrics/fastcache v1.12.1/go.mod h1:tX04vaqcNoQeGLD+ra5pU5sWkuxnzWhEzLwhP9w653o= github.com/aclements/go-gg v0.0.0-20170118225347-6dbb4e4fefb0/go.mod h1:55qNq4vcpkIuHowELi5C8e+1yUHtoLoOUR9QU5j7Tes= github.com/aclements/go-moremath v0.0.0-20210112150236-f10218a38794/go.mod h1:7e+I0LQFUI9AXWxOfsQROs9xPhoJtbsyWcjJqDd4KPY= -github.com/aead/siphash v1.0.1/go.mod h1:Nywa3cDsYNNK3gaciGTWPwHt0wlpNV15vwmswBAUSII= github.com/ajg/form v1.5.1/go.mod h1:uL1WgH+h2mgNtvBq0339dVnzXdBETtL2LeUXaIv25UY= github.com/ajstarks/svgo v0.0.0-20180226025133-644b8db467af/go.mod h1:K08gAheRH3/J6wwsYMMT4xOr94bZjxIelGM0+d/wbFw= github.com/ajstarks/svgo v0.0.0-20210923152817-c3b6e2f0c527/go.mod h1:K08gAheRH3/J6wwsYMMT4xOr94bZjxIelGM0+d/wbFw= @@ -121,18 +120,8 @@ github.com/bmizerany/pat v0.0.0-20170815010413-6226ea591a40/go.mod h1:8rLXio+Wji github.com/boltdb/bolt v1.3.1/go.mod h1:clJnj/oiGkjum5o1McbSZDSLxVThjynRyGBgiAx27Ps= github.com/boombuler/barcode v1.0.0/go.mod h1:paBWMcWSl3LHKBqUq+rly7CNSldXjb2rDl3JlRe0mD8= github.com/boombuler/barcode v1.0.1/go.mod h1:paBWMcWSl3LHKBqUq+rly7CNSldXjb2rDl3JlRe0mD8= -github.com/btcsuite/btcd v0.20.1-beta/go.mod h1:wVuoA8VJLEcwgqHBwHmzLRazpKxTv13Px/pDuV7OomQ= github.com/btcsuite/btcd/btcec/v2 v2.2.0/go.mod h1:U7MHm051Al6XmscBQ0BoNydpOTsFAn707034b5nY8zU= github.com/btcsuite/btcd/chaincfg/chainhash v1.0.1/go.mod h1:7SFka0XMvUgj3hfZtydOrQY2mwhPclbT2snogU7SQQc= -github.com/btcsuite/btclog v0.0.0-20170628155309-84c8d2346e9f/go.mod h1:TdznJufoqS23FtqVCzL0ZqgP5MqXbb4fg/WgDys70nA= -github.com/btcsuite/btcutil v0.0.0-20190425235716-9e5f4b9a998d/go.mod h1:+5NJ2+qvTyV9exUAL/rxXi3DcLg2Ts+ymUAY5y4NvMg= -github.com/btcsuite/btcutil v1.0.2 h1:9iZ1Terx9fMIOtq1VrwdqfsATL9MC2l8ZrUY6YZ2uts= -github.com/btcsuite/btcutil v1.0.2/go.mod h1:j9HUFwoQRsZL3V4n+qG+CUnEGHOarIxfC3Le2Yhbcts= -github.com/btcsuite/go-socks v0.0.0-20170105172521-4720035b7bfd/go.mod h1:HHNXQzUsZCxOoE+CPiyCTO6x34Zs86zZUiwtpXoGdtg= -github.com/btcsuite/goleveldb v0.0.0-20160330041536-7834afc9e8cd/go.mod h1:F+uVaaLLH7j4eDXPRvw78tMflu7Ie2bzYOH4Y8rRKBY= -github.com/btcsuite/snappy-go v0.0.0-20151229074030-0bdef8d06723/go.mod h1:8woku9dyThutzjeg+3xrA5iCpBRH8XEEg3lh6TiUghc= -github.com/btcsuite/websocket v0.0.0-20150119174127-31079b680792/go.mod h1:ghJtEyQwv5/p4Mg4C0fgbePVuGr935/5ddU9Z3TmDRY= -github.com/btcsuite/winsvc v1.0.0/go.mod h1:jsenWakMcC0zFBFurPLEAyrnc/teJEM1O46fmI40EZs= github.com/c-bata/go-prompt v0.2.2/go.mod h1:VzqtzE2ksDBcdln8G7mk2RX9QyGjH+OVqOCSiVIqS34= github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU= github.com/cespare/cp v0.1.0/go.mod h1:SOGHArjBr4JWaSDEVpWpo/hNg6RoKrls6Oh40hiwW+s= @@ -180,12 +169,13 @@ github.com/crate-crypto/go-kzg-4844 v0.7.0/go.mod h1:1kMhvPgI0Ky3yIa+9lFySEBUBXk github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E= github.com/cyberdelia/templates v0.0.0-20141128023046-ca7fffd4298c/go.mod h1:GyV+0YP4qX0UQ7r2MoYZ+AvYDp12OF5yg4q8rGnyNh4= github.com/dave/jennifer v1.2.0/go.mod h1:fIb+770HOpJ2fmN9EPPKOqm1vMGhB+TwXKMZhrIygKg= -github.com/davecgh/go-spew v0.0.0-20171005155431-ecdeabc65495/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c= github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= github.com/deckarep/golang-set v1.8.0/go.mod h1:5nI87KwE7wgsBU1F4GKAw2Qod7p5kyS383rP6+o6qqo= github.com/deckarep/golang-set/v2 v2.1.0/go.mod h1:VAky9rY/yGXJOLEDv3OMci+7wtDpOF4IN+y82NBOac4= +github.com/decred/dcrd/bech32 v1.1.4 h1:wFlLM7Oic0MlIhQZdCQhdIqVc4CNaQ0vNR9fgCoWfe0= +github.com/decred/dcrd/bech32 v1.1.4/go.mod h1:jliqHZmCbVfT06Lh1mQywEKFVidRclbBJIUmwdoKhu0= github.com/decred/dcrd/crypto/blake256 v1.0.0/go.mod h1:sQl2p6Y26YV+ZOcSTP6thNdn47hh8kt6rqSlvmrXFAc= github.com/decred/dcrd/crypto/blake256 v1.0.1 h1:7PltbUIQB7u/FfZ39+DGa/ShuMyJ5ilcvdfma9wOH6Y= github.com/decred/dcrd/crypto/blake256 v1.0.1/go.mod h1:2OfgNZ5wDpcsFmHmCK5gZTPcCXqlm2ArzUIkw9czNJo= @@ -374,6 +364,8 @@ github.com/google/subcommands v1.2.0/go.mod h1:ZjhPrFU+Olkh9WazFPsl27BQ4UPiG37m3 github.com/google/uuid v1.1.1/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo= github.com/google/uuid v1.2.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo= github.com/google/uuid v1.3.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo= +github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0= +github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo= github.com/googleapis/gax-go v0.0.0-20161107002406-da06d194a00e/go.mod h1:SFVmujtThgffbyetf+mdk2eWhX2bMyUtNHzFKcPA9HY= github.com/googleapis/gax-go/v2 v2.0.4/go.mod h1:0Wqv26UfaUD9n4G6kQubkQ+KchISgw+vpHVxEJEs9eg= github.com/googleapis/gax-go/v2 v2.0.5/go.mod h1:DWXyrwAJ9X0FpwwEdw+IPEYBICEFu5mhpdKc/us6bOk= @@ -428,12 +420,10 @@ github.com/iris-contrib/schema v0.0.1/go.mod h1:urYA3uvUNG1TIIjOSCzHr9/LmbQo8LrO github.com/jackpal/go-nat-pmp v1.0.2/go.mod h1:QPH045xvCAeXUZOxsnwmrtiCoxIr9eob+4orBN1SBKc= github.com/jedisct1/go-minisign v0.0.0-20190909160543-45766022959e/go.mod h1:G1CVv03EnqU1wYL2dFwXxW2An0az9JTl/ZsqXQeBlkU= github.com/jedisct1/go-minisign v0.0.0-20230811132847-661be99b8267/go.mod h1:h1nSAbGFqGVzn6Jyl1R/iCcBUHN4g+gW1u9CoBTrb9E= -github.com/jessevdk/go-flags v0.0.0-20141203071132-1679536dcc89/go.mod h1:4FA24M0QyGHXBuZZK/XkWh8h0e1EYbRYJSGM75WSRxI= github.com/jmespath/go-jmespath v0.4.0/go.mod h1:T8mJZnbsbmF+m6zOOFylbeCJqk5+pHWvzYPziyZiYoo= github.com/jmespath/go-jmespath/internal/testify v1.5.1/go.mod h1:L3OGu8Wl2/fWfCI6z80xFu9LTZmf1ZRjMHUOPmWr69U= github.com/jonboulle/clockwork v0.1.0/go.mod h1:Ii8DK3G1RaLaWxj9trq07+26W01tbo22gdxWY5EU2bo= github.com/jpillora/backoff v1.0.0/go.mod h1:J/6gKK9jxlEcS3zixgDgUAsiuZ7yrSoa/FX5e0EB2j4= -github.com/jrick/logrotate v1.0.0/go.mod h1:LNinyqDIJnpAur+b8yyulnQw/wDuN1+BYKlTRt3OuAQ= github.com/json-iterator/go v1.1.6/go.mod h1:+SdeFBvtyEkXs7REEP0seUULqWtbJapLOCVDaaPEHmU= github.com/json-iterator/go v1.1.10/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4= github.com/json-iterator/go v1.1.11/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4= @@ -461,7 +451,6 @@ github.com/kisielk/errcheck v1.1.0/go.mod h1:EZBBE59ingxPouuu3KfxchcWSUPOHkagtvW github.com/kisielk/errcheck v1.2.0/go.mod h1:/BMXB+zMLi60iA8Vv6Ksmxu/1UDYcXs4uQLJ+jE2L00= github.com/kisielk/errcheck v1.5.0/go.mod h1:pFxgyoBC7bSaBwPgfKdkLd5X25qrDl4LWUI2bnpBCr8= github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck= -github.com/kkdai/bstream v0.0.0-20161212061736-f391b8402d23/go.mod h1:J+Gs4SYgM6CZQHDETBtE9HaSEkGmuNXF86RwHhHUvq4= github.com/klauspost/compress v1.4.0/go.mod h1:RyIbtBH6LamlWaDj8nUwkbUhJ87Yi3uG0guNDohfE1A= github.com/klauspost/compress v1.8.2/go.mod h1:RyIbtBH6LamlWaDj8nUwkbUhJ87Yi3uG0guNDohfE1A= github.com/klauspost/compress v1.9.0/go.mod h1:RyIbtBH6LamlWaDj8nUwkbUhJ87Yi3uG0guNDohfE1A= @@ -550,12 +539,10 @@ github.com/nxadm/tail v1.4.4/go.mod h1:kenIhsEOeOJmVchQTgglprH7qJGnHDVpk1VPCcaMI github.com/oklog/ulid v1.3.1/go.mod h1:CirwcVhetQ6Lv90oh/F+FBtV6XMibvdAFo93nm5qn4U= github.com/olekukonko/tablewriter v0.0.5/go.mod h1:hPp6KlRPjbx+hW8ykQs1w3UBbZlj6HuIJcUGPhkA7kY= github.com/onsi/ginkgo v1.6.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE= -github.com/onsi/ginkgo v1.7.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE= github.com/onsi/ginkgo v1.10.3/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE= github.com/onsi/ginkgo v1.12.1/go.mod h1:zj2OWP4+oCPe1qIXoGWkgMRwljMUYCdkwsT2108oapk= github.com/onsi/ginkgo v1.13.0/go.mod h1:+REjRxOmWfHCjfv9TTWB1jD1Frx4XydAD3zm1lskyM0= github.com/onsi/ginkgo v1.14.0/go.mod h1:iSB4RoI2tjJc9BBv4NKIKWKya62Rps+oPG/Lv9klQyY= -github.com/onsi/gomega v1.4.3/go.mod h1:ex+gbHU/CVuBBDIJjb2X0qEXbFg53c61hWP/1CpauHY= github.com/onsi/gomega v1.7.1/go.mod h1:XdKZgCCFLUoM/7CFJVPcG8C1xQ1AJ0vpAezJrB7JYyY= github.com/onsi/gomega v1.10.1/go.mod h1:iN09h71vgCQne3DLsj+A5owkum+a2tYe+TOCB1ybHNo= github.com/opentracing/opentracing-go v1.0.2/go.mod h1:UkNAQd3GIcIGf0SeVgPpRdFStlNbqXla1AfSYxPUl2o= @@ -721,7 +708,6 @@ go.uber.org/automaxprocs v1.5.2/go.mod h1:eRbA25aqJrxAbsLO0xy5jVwPt7FQnRgjW+efnw go.uber.org/multierr v1.1.0/go.mod h1:wR5kodmAFQ0UK8QlbwjlSNy0Z68gJhDJUG5sjR94q/0= go.uber.org/zap v1.9.1/go.mod h1:vwi/ZaCAaUcBkycHslxD9B2zi4UTXhF60s6SWpuDF0Q= go.uber.org/zap v1.10.0/go.mod h1:vwi/ZaCAaUcBkycHslxD9B2zi4UTXhF60s6SWpuDF0Q= -golang.org/x/crypto v0.0.0-20170930174604-9419663f5a44/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4= golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4= golang.org/x/crypto v0.0.0-20181203042331-505ab145d0a9/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4= golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w= @@ -730,7 +716,6 @@ golang.org/x/crypto v0.0.0-20190605123033-f99c8df09eb5/go.mod h1:yigFU9vqHzYiE8U golang.org/x/crypto v0.0.0-20190701094942-4def268fd1a4/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI= golang.org/x/crypto v0.0.0-20190909091759-094676da4a83/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI= golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI= -golang.org/x/crypto v0.0.0-20200115085410-6d4e4cb37c7d/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto= golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto= golang.org/x/crypto v0.0.0-20200820211705-5c72a883971a/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto= golang.org/x/crypto v0.0.0-20201221181555-eec23a3978ad/go.mod h1:jdWPYTVW3xRLrWPugEBEK3UY2ZEsg3UU495nc5E+M+I= diff --git a/uma/protocol/invoice.go b/uma/protocol/invoice.go index a9b2d17..b719706 100644 --- a/uma/protocol/invoice.go +++ b/uma/protocol/invoice.go @@ -3,7 +3,7 @@ package protocol import ( "fmt" - "github.com/btcsuite/btcutil/bech32" + "github.com/decred/dcrd/bech32" "github.com/uma-universal-money-address/uma-go-sdk/uma/utils" ) @@ -95,3 +95,23 @@ func (i *UmaInvoice) ToBech32String() (string, error) { return bech32.Encode("uma", conv) } + +func FromBech32String(bech32Str string) (*UmaInvoice, error) { + hrp, data, err := bech32.DecodeNoLimit(bech32Str) + if err != nil { + return nil, err + } + if hrp != "uma" { + return nil, fmt.Errorf("invalid human readable part") + } + conv, err := bech32.ConvertBits(data, 5, 8, false) + if err != nil { + return nil, err + } + var i UmaInvoice + err = i.UnmarshalTLV(conv) + if err != nil { + return nil, err + } + return &i, nil +} diff --git a/uma/test/protocol_test.go b/uma/test/protocol_test.go index 7fb01b4..e95dc42 100644 --- a/uma/test/protocol_test.go +++ b/uma/test/protocol_test.go @@ -273,7 +273,7 @@ func TestBinaryCodableForCounterPartyDataOptions(t *testing.T) { func TestUMAInvoiceTLVAndBech32(t *testing.T) { kyc := umaprotocol.KycStatusVerified signature := []byte("signature") - invoicenvoice := umaprotocol.UmaInvoice{ + invoice := umaprotocol.UmaInvoice{ ReceiverUma: "$foo@bar.com", InvoiceUUID: "c7c07fec-cf00-431c-916f-6c13fc4b69f9", Amount: 1000, @@ -298,15 +298,19 @@ func TestUMAInvoiceTLVAndBech32(t *testing.T) { Signature: &signature, } - invoiceTLV, err := invoicenvoice.MarshalTLV() + invoiceTLV, err := invoice.MarshalTLV() require.NoError(t, err) invoice2 := umaprotocol.UmaInvoice{} err = invoice2.UnmarshalTLV(invoiceTLV) require.NoError(t, err) - require.Equal(t, invoicenvoice, invoice2) + require.Equal(t, invoice, invoice2) bech32String, err := invoice2.ToBech32String() require.NoError(t, err) require.Equal(t, "uma1qqxzgen0daqxyctj9e3k7mgpy33nwcesxanx2cedvdnrqvpdxsenzced8ycnve3dxe3nzvmxvv6xyd3evcusypp3xqcrqqcnqqp4256yqyy425eqg3hkcmrpwgpqzfqyqucnqvpsxqcrqpgpqyrpkcm0d4cxc6tpde3k2w3393jk6ctfdsarqtrwv9kk2w3squpnqt3npvqnxrqudp68gurn8ghj7etcv9khqmr99e3k7mf0vdskcmrzv93kkeqfwd5kwmnpw36hyeg0e4m4j", bech32String) + + invoice3, err := umaprotocol.FromBech32String(bech32String) + require.NoError(t, err) + require.Equal(t, invoice, *invoice3) } diff --git a/uma/test/uma_test.go b/uma/test/uma_test.go index 202c286..7c4455e 100644 --- a/uma/test/uma_test.go +++ b/uma/test/uma_test.go @@ -804,3 +804,56 @@ func getPubKeyResponse(privateKey *secp256k1.PrivateKey) umaprotocol.PubKeyRespo ExpirationTimestamp: nil, } } + +func TestUMAInvoice(t *testing.T) { + privateKey, err := secp256k1.GeneratePrivateKey() + require.NoError(t, err) + + kyc := umaprotocol.KycStatusVerified + umaInvoice, err := uma.CreateUmaInvoice( + "$foo@bar.com", + 100000, + umaprotocol.InvoiceCurrency{ + Code: "USD", + Name: "US Dollar", + Symbol: "$", + }, + 1721081249, + "https://vasp2.com/api/lnurl/payreq/$foo", + true, + &umaprotocol.CounterPartyDataOptions{ + "name": umaprotocol.CounterPartyDataOption{Mandatory: false}, + "email": umaprotocol.CounterPartyDataOption{Mandatory: false}, + "compliance": umaprotocol.CounterPartyDataOption{Mandatory: true}, + }, + nil, + &kyc, + nil, + nil, + privateKey.Serialize(), + ) + + encodedInvoice, err := umaInvoice.ToBech32String() + + require.NoError(t, err) + decodedInvoice, err := uma.DecodeUmaInvoice(encodedInvoice) + require.NoError(t, err) + require.Equal(t, decodedInvoice.ReceiverUma, "$foo@bar.com") + require.Equal(t, decodedInvoice.Amount, uint64(100000)) + require.Equal(t, decodedInvoice.ReceivingCurrency.Code, "USD") + require.Equal(t, decodedInvoice.ReceivingCurrency.Name, "US Dollar") + require.Equal(t, decodedInvoice.ReceivingCurrency.Symbol, "$") + require.Equal(t, decodedInvoice.Expiration, uint64(1721081249)) + require.Equal(t, decodedInvoice.Callback, "https://vasp2.com/api/lnurl/payreq/$foo") + require.Equal(t, decodedInvoice.IsSubjectToTravelRule, true) + require.Equal(t, *decodedInvoice.RequiredPayerData, umaprotocol.CounterPartyDataOptions{ + "name": umaprotocol.CounterPartyDataOption{Mandatory: false}, + "email": umaprotocol.CounterPartyDataOption{Mandatory: false}, + "compliance": umaprotocol.CounterPartyDataOption{Mandatory: true}, + }) + require.Equal(t, *decodedInvoice.KycStatus, umaprotocol.KycStatusVerified) + + publicKeyResponse := getPubKeyResponse(privateKey) + err = uma.VerifyUmaInvoiceSignature(*decodedInvoice, publicKeyResponse) + require.NoError(t, err) +} diff --git a/uma/uma.go b/uma/uma.go index fb5eab0..f84a002 100644 --- a/uma/uma.go +++ b/uma/uma.go @@ -18,6 +18,7 @@ import ( "github.com/decred/dcrd/dcrec/secp256k1/v4" "github.com/decred/dcrd/dcrec/secp256k1/v4/ecdsa" eciesgo "github.com/ecies/go/v2" + "github.com/google/uuid" "github.com/uma-universal-money-address/uma-go-sdk/uma/protocol" "github.com/uma-universal-money-address/uma-go-sdk/uma/utils" ) @@ -115,7 +116,7 @@ func GenerateNonce() (*string, error) { return &nonce, nil } -func signPayload(payload []byte, privateKeyBytes []byte) (*string, error) { +func signPayloadToBytes(payload []byte, privateKeyBytes []byte) ([]byte, error) { privateKey := secp256k1.PrivKeyFromBytes(privateKeyBytes) hash := crypto.SHA256.New() _, err := hash.Write(payload) @@ -127,6 +128,14 @@ func signPayload(payload []byte, privateKeyBytes []byte) (*string, error) { if err != nil { return nil, err } + return signature, nil +} + +func signPayload(payload []byte, privateKeyBytes []byte) (*string, error) { + signature, err := signPayloadToBytes(payload, privateKeyBytes) + if err != nil { + return nil, err + } signatureString := hex.EncodeToString(signature) return &signatureString, nil } @@ -1011,3 +1020,64 @@ func VerifyPostTransactionCallbackSignature( } return verifySignature(*signablePayload, *callback.Signature, otherVaspPubKeyResponse) } + +func CreateUmaInvoice( + receiverUma string, + amount uint64, + receivingCurrency protocol.InvoiceCurrency, + expiration uint64, + callback string, + isSubjectToTravelRule bool, + requiredPayerData *protocol.CounterPartyDataOptions, + commentCharsAllowed *int, + receiverKycStatus *protocol.KycStatus, + invoiceLimit *uint64, + senderUma *string, + signingPrivateKey []byte, +) (*protocol.UmaInvoice, error) { + uuid := uuid.New().String() + invoice := protocol.UmaInvoice{ + ReceiverUma: receiverUma, + InvoiceUUID: uuid, + Amount: amount, + ReceivingCurrency: receivingCurrency, + Expiration: expiration, + IsSubjectToTravelRule: isSubjectToTravelRule, + RequiredPayerData: requiredPayerData, + // TODO: modify the version once ready, all current version cannot support UMA invoice. + // Since this only add fields and features to the protocol, this won't break the current + // UMA version so it can be a minor version bump. + UmaVersion: UmaProtocolVersion, + CommentCharsAllowed: commentCharsAllowed, + SenderUma: senderUma, + InvoiceLimit: invoiceLimit, + KycStatus: receiverKycStatus, + Callback: callback, + Signature: nil, + } + signablePayload, err := invoice.MarshalTLV() + if err != nil { + return nil, err + } + signature, err := signPayloadToBytes(signablePayload, signingPrivateKey) + if err != nil { + return nil, err + } + invoice.Signature = &signature + return &invoice, nil +} + +func DecodeUmaInvoice(invoice string) (*protocol.UmaInvoice, error) { + return protocol.FromBech32String(invoice) +} + +func VerifyUmaInvoiceSignature(invoice protocol.UmaInvoice, otherVaspPubKeyResponse protocol.PubKeyResponse) error { + unsignedInvoice := invoice + unsignedInvoice.Signature = nil + signablePayload, err := unsignedInvoice.MarshalTLV() + if err != nil { + return err + } + signatureString := hex.EncodeToString(*invoice.Signature) + return verifySignature(signablePayload, signatureString, otherVaspPubKeyResponse) +}