cleanups

src/script/cc.h

@@ -0,0 +1,83 @@
+#ifndef SCRIPT_CC_H
+#define SCRIPT_CC_H
+
+#include "pubkey.h"
+#include "script/script.h"
+#include "cryptoconditions/include/cryptoconditions.h"
+
+
+extern int32_t ASSETCHAINS_CC;
+bool IsCryptoConditionsEnabled();
+
+// Limit acceptable condition types
+// Prefix not enabled because no current use case, ambiguity on how to combine with secp256k1
+// RSA not enabled because no current use case, not implemented
+const int CCEnabledTypes = 1 << CC_Secp256k1 | \
+                           1 << CC_Threshold | \
+                           1 << CC_Eval | \
+                           1 << CC_Preimage | \
+                           1 << CC_Ed25519;
+
+const int CCSigningNodes = 1 << CC_Ed25519 | 1 << CC_Secp256k1;
+
+
+/*
+ * Check if the server can accept the condition based on it's structure / types
+ */
+bool IsSupportedCryptoCondition(const CC *cond);
+
+
+/*
+ * Check if crypto condition is signed. Can only accept signed conditions.
+ */
+bool IsSignedCryptoCondition(const CC *cond);
+
+
+/*
+ * Construct crypto conditions
+ */
+CC* CCNewPreimage(std::vector<unsigned char> preimage);
+CC* CCNewEval(std::vector<unsigned char> code);
+CC* CCNewSecp256k1(CPubKey k);
+CC* CCNewThreshold(int t, std::vector<CC*> v);
+
+
+/*
+ * Turn a condition into a scriptPubKey
+ */
+CScript CCPubKey(const CC *cond);
+
+
+/*
+ * Turn a condition into a scriptSig
+ *
+ * Note: This will fail in undefined ways if the condition is missing signatures
+ */
+CScript CCSig(const CC *cond);
+
+
+/*
+ * Produces a string showing the structure of a CC condition
+ */
+std::string CCShowStructure(CC *cond);
+
+
+/*
+ * Take a signed CC, encode it, and decode it again. This has the effect
+ * of removing branches unneccesary for fulfillment.
+ */
+CC* CCPrune(CC *cond);
+
+
+/*
+ * Get PUSHDATA from a script
+ */
+bool GetPushData(const CScript &sig, std::vector<unsigned char> &data);
+
+/*
+ * Get OP_RETURN data from a script
+ */
+bool GetOpReturnData(const CScript &sig, std::vector<unsigned char> &data);
+
+
+#endif /* SCRIPT_CC_H */