forked from TrueCloudLab/neoneo-go
6b21ad9922
Everywhere including examples, external interop APIs, bindings generators
code and in other valuable places. A couple of `interface{}` usages are
intentionally left in the CHANGELOG.md, documentation and tests.
42 lines
1.5 KiB
Go
42 lines
1.5 KiB
Go
package oraclecontract
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import (
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"github.com/nspcc-dev/neo-go/pkg/interop"
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"github.com/nspcc-dev/neo-go/pkg/interop/contract"
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"github.com/nspcc-dev/neo-go/pkg/interop/native/oracle"
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"github.com/nspcc-dev/neo-go/pkg/interop/native/std"
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"github.com/nspcc-dev/neo-go/pkg/interop/runtime"
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"github.com/nspcc-dev/neo-go/pkg/interop/storage"
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"github.com/nspcc-dev/neo-go/pkg/interop/util"
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)
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// RequestURL accepts a complete set of parameters to make an oracle request and
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// performs it.
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func RequestURL(url string, filter []byte, callback string, userData any, gasForResponse int) {
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oracle.Request(url, filter, callback, userData, gasForResponse)
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}
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// Handle is a response handler that writes response data to the storage.
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func Handle(url string, data any, code int, res []byte) {
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// ABORT if len(data) == 2, some tests use this feature.
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if data != nil && len(data.(string)) == 2 {
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util.Abort()
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}
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params := []any{url, data, code, res}
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storage.Put(storage.GetContext(), "lastOracleResponse", std.Serialize(params))
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}
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// HandleRecursive invokes oracle.finish again to test Oracle reentrance.
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func HandleRecursive(url string, data any, code int, res []byte) {
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// Regular safety check.
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callingHash := runtime.GetCallingScriptHash()
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if !callingHash.Equals(oracle.Hash) {
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panic("not called from oracle contract")
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}
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runtime.Notify("Invocation")
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if runtime.GetInvocationCounter() == 1 {
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// We provide no wrapper for finish in interops, it's not usually needed.
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contract.Call(interop.Hash160(oracle.Hash), "finish", contract.All)
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}
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}
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