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       tnetwork.py: update bitcoin core error msg whitelist - electrum - Electrum Bitcoin wallet
  HTML git clone https://git.parazyd.org/electrum
   DIR Log
   DIR Files
   DIR Refs
   DIR Submodules
       ---
   DIR commit 8bdbcf73d9796e1eb5f77391667372229d1f1a33
   DIR parent 3a40d48a6e5add78a67a1fb5916428d604de4612
  HTML Author: SomberNight <somber.night@protonmail.com>
       Date:   Sun, 21 Feb 2021 04:48:36 +0100
       
       network.py: update bitcoin core error msg whitelist
       
       Also add descriptive text for some of the common messages people ask
       for help with.
       
       closes #6760
       related #5851
       related #6985
       
       Diffstat:
         M electrum/network.py                 |     141 +++++++++++++++++++------------
       
       1 file changed, 88 insertions(+), 53 deletions(-)
       ---
   DIR diff --git a/electrum/network.py b/electrum/network.py
       t@@ -902,23 +902,28 @@ class Network(Logger, NetworkRetryManager[ServerAddr]):
                # server_msg is untrusted input so it should not be shown to the user. see #4968
                server_msg = str(server_msg)
                server_msg = server_msg.replace("\n", r"\n")
       -        # https://github.com/bitcoin/bitcoin/blob/cd42553b1178a48a16017eff0b70669c84c3895c/src/policy/policy.cpp
       +        # https://github.com/bitcoin/bitcoin/blob/5bb64acd9d3ced6e6f95df282a1a0f8b98522cb0/src/policy/policy.cpp
                # grep "reason ="
                policy_error_messages = {
                    r"version": _("Transaction uses non-standard version."),
                    r"tx-size": _("The transaction was rejected because it is too large (in bytes)."),
                    r"scriptsig-size": None,
                    r"scriptsig-not-pushonly": None,
       -            r"scriptpubkey": None,
       +            r"scriptpubkey":
       +                ("scriptpubkey\n" +
       +                 _("Some of the outputs pay to a non-standard script.")),
                    r"bare-multisig": None,
       -            r"dust": _("Transaction could not be broadcast due to dust outputs."),
       +            r"dust":
       +                (_("Transaction could not be broadcast due to dust outputs.\n"
       +                   "Some of the outputs are too small in value, probably lower than 1000 satoshis.\n"
       +                   "Check the units, make sure you haven't confused e.g. mBTC and BTC.")),
                    r"multi-op-return": _("The transaction was rejected because it contains multiple OP_RETURN outputs."),
                }
                for substring in policy_error_messages:
                    if substring in server_msg:
                        msg = policy_error_messages[substring]
                        return msg if msg else substring
       -        # https://github.com/bitcoin/bitcoin/blob/cd42553b1178a48a16017eff0b70669c84c3895c/src/script/script_error.cpp
       +        # https://github.com/bitcoin/bitcoin/blob/5bb64acd9d3ced6e6f95df282a1a0f8b98522cb0/src/script/script_error.cpp
                script_error_messages = {
                    r"Script evaluated without error but finished with a false/empty top stack element",
                    r"Script failed an OP_VERIFY operation",
       t@@ -950,7 +955,11 @@ class Network(Logger, NetworkRetryManager[ServerAddr]):
                    r"Signature must be zero for failed CHECK(MULTI)SIG operation",
                    r"NOPx reserved for soft-fork upgrades",
                    r"Witness version reserved for soft-fork upgrades",
       +            r"Taproot version reserved for soft-fork upgrades",
       +            r"OP_SUCCESSx reserved for soft-fork upgrades",
       +            r"Public key version reserved for soft-fork upgrades",
                    r"Public key is neither compressed or uncompressed",
       +            r"Stack size must be exactly one after execution",
                    r"Extra items left on stack after execution",
                    r"Witness program has incorrect length",
                    r"Witness program was passed an empty witness",
       t@@ -959,78 +968,104 @@ class Network(Logger, NetworkRetryManager[ServerAddr]):
                    r"Witness requires only-redeemscript scriptSig",
                    r"Witness provided for non-witness script",
                    r"Using non-compressed keys in segwit",
       +            r"Invalid Schnorr signature size",
       +            r"Invalid Schnorr signature hash type",
       +            r"Invalid Schnorr signature",
       +            r"Invalid Taproot control block size",
       +            r"Too much signature validation relative to witness weight",
       +            r"OP_CHECKMULTISIG(VERIFY) is not available in tapscript",
       +            r"OP_IF/NOTIF argument must be minimal in tapscript",
                    r"Using OP_CODESEPARATOR in non-witness script",
                    r"Signature is found in scriptCode",
                }
                for substring in script_error_messages:
                    if substring in server_msg:
                        return substring
       -        # https://github.com/bitcoin/bitcoin/blob/cd42553b1178a48a16017eff0b70669c84c3895c/src/validation.cpp
       +        # https://github.com/bitcoin/bitcoin/blob/5bb64acd9d3ced6e6f95df282a1a0f8b98522cb0/src/validation.cpp
                # grep "REJECT_"
       +        # grep "TxValidationResult"
                # should come after script_error.cpp (due to e.g. non-mandatory-script-verify-flag)
                validation_error_messages = {
       -            r"coinbase",
       -            r"tx-size-small",
       -            r"non-final",
       -            r"txn-already-in-mempool",
       -            r"txn-mempool-conflict",
       -            r"txn-already-known",
       -            r"non-BIP68-final",
       -            r"bad-txns-nonstandard-inputs",
       -            r"bad-witness-nonstandard",
       -            r"bad-txns-too-many-sigops",
       -            r"mempool min fee not met",
       -            r"min relay fee not met",
       -            r"absurdly-high-fee",
       -            r"too-long-mempool-chain",
       -            r"bad-txns-spends-conflicting-tx",
       -            r"insufficient fee",
       -            r"too many potential replacements",
       -            r"replacement-adds-unconfirmed",
       -            r"mempool full",
       -            r"non-mandatory-script-verify-flag",
       -            r"mandatory-script-verify-flag-failed",
       +            r"coinbase": None,
       +            r"tx-size-small": None,
       +            r"non-final": None,
       +            r"txn-already-in-mempool": None,
       +            r"txn-mempool-conflict": None,
       +            r"txn-already-known": None,
       +            r"non-BIP68-final": None,
       +            r"bad-txns-nonstandard-inputs": None,
       +            r"bad-witness-nonstandard": None,
       +            r"bad-txns-too-many-sigops": None,
       +            r"mempool min fee not met":
       +                ("mempool min fee not met\n" +
       +                 _("Your transaction is paying a fee that is so low that the bitcoin node cannot "
       +                   "fit it into its mempool. The mempool is already full of hundreds of megabytes "
       +                   "of transactions that all pay higher fees. Try to increase the fee.")),
       +            r"min relay fee not met": None,
       +            r"absurdly-high-fee": None,
       +            r"max-fee-exceeded": None,
       +            r"too-long-mempool-chain": None,
       +            r"bad-txns-spends-conflicting-tx": None,
       +            r"insufficient fee": ("insufficient fee\n" +
       +                 _("Your transaction is trying to replace another one in the mempool but it "
       +                   "does not meet the rules to do so. Try to increase the fee.")),
       +            r"too many potential replacements": None,
       +            r"replacement-adds-unconfirmed": None,
       +            r"mempool full": None,
       +            r"non-mandatory-script-verify-flag": None,
       +            r"mandatory-script-verify-flag-failed": None,
       +            r"Transaction check failed": None,
                }
                for substring in validation_error_messages:
                    if substring in server_msg:
       -                return substring
       -        # https://github.com/bitcoin/bitcoin/blob/cd42553b1178a48a16017eff0b70669c84c3895c/src/rpc/rawtransaction.cpp
       +                msg = validation_error_messages[substring]
       +                return msg if msg else substring
       +        # https://github.com/bitcoin/bitcoin/blob/5bb64acd9d3ced6e6f95df282a1a0f8b98522cb0/src/rpc/rawtransaction.cpp
       +        # https://github.com/bitcoin/bitcoin/blob/5bb64acd9d3ced6e6f95df282a1a0f8b98522cb0/src/util/error.cpp
                # grep "RPC_TRANSACTION"
                # grep "RPC_DESERIALIZATION_ERROR"
       -        # https://github.com/bitcoin/bitcoin/blob/d7d7d315060620446bd363ca50f95f79d3260db7/src/util/error.cpp
                rawtransaction_error_messages = {
       -            r"Missing inputs",
       -            r"transaction already in block chain",
       -            r"Transaction already in block chain",
       -            r"TX decode failed",
       -            r"Peer-to-peer functionality missing or disabled",
       -            r"Transaction rejected by AcceptToMemoryPool",
       -            r"AcceptToMemoryPool failed",
       +            r"Missing inputs": None,
       +            r"Inputs missing or spent": None,
       +            r"transaction already in block chain": None,
       +            r"Transaction already in block chain": None,
       +            r"TX decode failed": None,
       +            r"Peer-to-peer functionality missing or disabled": None,
       +            r"Transaction rejected by AcceptToMemoryPool": None,
       +            r"AcceptToMemoryPool failed": None,
       +            r"Fee exceeds maximum configured by user": None,
                }
                for substring in rawtransaction_error_messages:
                    if substring in server_msg:
       -                return substring
       -        # https://github.com/bitcoin/bitcoin/blob/cd42553b1178a48a16017eff0b70669c84c3895c/src/consensus/tx_verify.cpp
       +                msg = rawtransaction_error_messages[substring]
       +                return msg if msg else substring
       +        # https://github.com/bitcoin/bitcoin/blob/5bb64acd9d3ced6e6f95df282a1a0f8b98522cb0/src/consensus/tx_verify.cpp
       +        # https://github.com/bitcoin/bitcoin/blob/c7ad94428ab6f54661d7a5441e1fdd0ebf034903/src/consensus/tx_check.cpp
                # grep "REJECT_"
       +        # grep "TxValidationResult"
                tx_verify_error_messages = {
       -            r"bad-txns-vin-empty",
       -            r"bad-txns-vout-empty",
       -            r"bad-txns-oversize",
       -            r"bad-txns-vout-negative",
       -            r"bad-txns-vout-toolarge",
       -            r"bad-txns-txouttotal-toolarge",
       -            r"bad-txns-inputs-duplicate",
       -            r"bad-cb-length",
       -            r"bad-txns-prevout-null",
       -            r"bad-txns-inputs-missingorspent",
       -            r"bad-txns-premature-spend-of-coinbase",
       -            r"bad-txns-inputvalues-outofrange",
       -            r"bad-txns-in-belowout",
       -            r"bad-txns-fee-outofrange",
       +            r"bad-txns-vin-empty": None,
       +            r"bad-txns-vout-empty": None,
       +            r"bad-txns-oversize": None,
       +            r"bad-txns-vout-negative": None,
       +            r"bad-txns-vout-toolarge": None,
       +            r"bad-txns-txouttotal-toolarge": None,
       +            r"bad-txns-inputs-duplicate": None,
       +            r"bad-cb-length": None,
       +            r"bad-txns-prevout-null": None,
       +            r"bad-txns-inputs-missingorspent":
       +                ("bad-txns-inputs-missingorspent\n" +
       +                 _("You might have a local transaction in your wallet that this transaction "
       +                   "builds on top. You need to either broadcast or remove the local tx.")),
       +            r"bad-txns-premature-spend-of-coinbase": None,
       +            r"bad-txns-inputvalues-outofrange": None,
       +            r"bad-txns-in-belowout": None,
       +            r"bad-txns-fee-outofrange": None,
                }
                for substring in tx_verify_error_messages:
                    if substring in server_msg:
       -                return substring
       +                msg = tx_verify_error_messages[substring]
       +                return msg if msg else substring
                # otherwise:
                return _("Unknown error")