Wallet: add BIP125 RBF bump fee

bin/bwallet-cli

@@ -298,6 +298,7 @@ class CLI {
       passphrase: this.config.str('passphrase'),
       outputs: outputs,
       smart: this.config.bool('smart'),
+      replaceable: this.config.bool('replaceable'),
       rate: this.config.ufixed('rate', 8),
       subtractFee: this.config.bool('subtract-fee')
     };
@@ -327,6 +328,7 @@ class CLI {
       passphrase: this.config.str('passphrase'),
       outputs: [output],
       smart: this.config.bool('smart'),
+      replaceable: this.config.bool('replaceable'),
       rate: this.config.ufixed('rate', 8),
       subtractFee: this.config.bool('subtract-fee'),
       sign: this.config.bool('sign')
@@ -362,6 +364,17 @@ class CLI {
     this.log('Abandoned tx: ' + hash);
   }
 
+  async bumpTX() {
+    const hash = this.config.str([0, 'hash']);
+    const rate = this.config.uint([1, 'rate']);
+    const sign = this.config.bool([2, 'sign']);
+    const passphrase = this.config.str([3, 'passphrase']);
+
+    const tx = await this.wallet.bumpTX(hash, rate, sign, passphrase);
+
+    this.log(tx);
+  }
+
   async getDetails() {
     const hash = this.config.str(0);
     const details = await this.wallet.getTX(hash);
@@ -603,6 +616,9 @@ class CLI {
       case 'rescan':
         await this.rescan();
         break;
+      case 'bump':
+        await this.bumpTX();
+        break;
       default:
         this.log('Unrecognized command.');
         this.log('Commands:');
@@ -615,6 +631,7 @@ class CLI {
         this.log('  $ balance: Get wallet balance.');
         this.log('  $ block [height]: View wallet block.');
         this.log('  $ blocks: List wallet blocks.');
+        this.log('  $ bump [hash]: Bump TX fee with replacement.');
         this.log('  $ change: Derive new change address.');
         this.log('  $ coins: View wallet coins.');
         this.log('  $ dump [address]: Get wallet key WIF by address.');

lib/client/wallet.js

@@ -356,6 +356,21 @@
     return this.del(`/wallet/${id}/tx/${hash}`);
   }
 
+  /**
+   * @param {Number} id
+   * @param {Hash} hash
+   * @param {Number?} rate
+   * @param {Bool?} sign
+   * @param {String?} passphrase
+   * @returns {Promise}
+   */
+
+  bumpTX(id, hash, rate, sign, passphrase) {
+    return this.post(
+      `/wallet/${id}/bump/${hash}`,
+      {hash, rate, sign, passphrase});
+  }
+
   /**
    * Create a transaction, fill.
    * @param {Number} id
@@ -832,6 +847,19 @@
     return this.client.abandon(this.id, hash);
   }
 
+  /**
+   * Send an RBF replacement to bump fee
+   * @param {Hash} hash
+   * @param {Number?} rate
+   * @param {Bool?} sign
+   * @param {String?} passphrase
+   * @returns {Promise}
+   */
+
+  bumpTX(hash, rate, sign, passphrase) {
+    return this.client.bumpTX(this.id, hash);
+  }
+
   /**
    * Create a transaction, fill.
    * @param {Object} options