Move @polkadot/hw-{ledger, ledger-transports} (#836)

* Move @polkadot/{ledger, ledger-transports} * yarn rewrite * Move to hw-* * Update header
2021-01-14 22:37:51 +01:00
parent 0b1cec4e2d
commit 0b804ff776
16 changed files with 1082 additions and 4 deletions
@@ -5,6 +5,9 @@ const config = require('@polkadot/dev/config/jest.cjs');

 module.exports = Object.assign({}, config, {
  moduleNameMapper: {
+    '@polkadot/hw-ledger-transports(.*)$': '<rootDir>/packages/hw-ledger-transports/src/node',
+    // eslint-disable-next-line sort-keys
+    '@polkadot/hw-ledger(.*)$': '<rootDir>/packages/hw-ledger/src/$1',
    '@polkadot/keyring(.*)$': '<rootDir>/packages/keyring/src/$1',
    '@polkadot/networks(.*)$': '<rootDir>/packages/networks/src/$1',
    '@polkadot/util-(crypto)(.*)$': '<rootDir>/packages/util-$1/src/$2',
@@ -13,6 +16,8 @@ module.exports = Object.assign({}, config, {
    '@polkadot/x-(fetch|randomvalues|textdecoder|textencoder|ws)(.*)$': '<rootDir>/packages/x-$1/src/node'
  },
  modulePathIgnorePatterns: [
+    '<rootDir>/packages/hw-ledger/build',
+    '<rootDir>/packages/hw-ledger-transports/build',
    '<rootDir>/packages/keyring/build',
    '<rootDir>/packages/networks/build',
    '<rootDir>/packages/util/build',
@@ -0,0 +1,201 @@
+                              Apache License
+                        Version 2.0, January 2004
+                    http://www.apache.org/licenses/
+
+TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+1. Definitions.
+
+  "License" shall mean the terms and conditions for use, reproduction,
+  and distribution as defined by Sections 1 through 9 of this document.
+
+  "Licensor" shall mean the copyright owner or entity authorized by
+  the copyright owner that is granting the License.
+
+  "Legal Entity" shall mean the union of the acting entity and all
+  other entities that control, are controlled by, or are under common
+  control with that entity. For the purposes of this definition,
+  "control" means (i) the power, direct or indirect, to cause the
+  direction or management of such entity, whether by contract or
+  otherwise, or (ii) ownership of fifty percent (50%) or more of the
+  outstanding shares, or (iii) beneficial ownership of such entity.
+
+  "You" (or "Your") shall mean an individual or Legal Entity
+  exercising permissions granted by this License.
+
+  "Source" form shall mean the preferred form for making modifications,
+  including but not limited to software source code, documentation
+  source, and configuration files.
+
+  "Object" form shall mean any form resulting from mechanical
+  transformation or translation of a Source form, including but
+  not limited to compiled object code, generated documentation,
+  and conversions to other media types.
+
+  "Work" shall mean the work of authorship, whether in Source or
+  Object form, made available under the License, as indicated by a
+  copyright notice that is included in or attached to the work
+  (an example is provided in the Appendix below).
+
+  "Derivative Works" shall mean any work, whether in Source or Object
+  form, that is based on (or derived from) the Work and for which the
+  editorial revisions, annotations, elaborations, or other modifications
+  represent, as a whole, an original work of authorship. For the purposes
+  of this License, Derivative Works shall not include works that remain
+  separable from, or merely link (or bind by name) to the interfaces of,
+  the Work and Derivative Works thereof.
+
+  "Contribution" shall mean any work of authorship, including
+  the original version of the Work and any modifications or additions
+  to that Work or Derivative Works thereof, that is intentionally
+  submitted to Licensor for inclusion in the Work by the copyright owner
+  or by an individual or Legal Entity authorized to submit on behalf of
+  the copyright owner. For the purposes of this definition, "submitted"
+  means any form of electronic, verbal, or written communication sent
+  to the Licensor or its representatives, including but not limited to
+  communication on electronic mailing lists, source code control systems,
+  and issue tracking systems that are managed by, or on behalf of, the
+  Licensor for the purpose of discussing and improving the Work, but
+  excluding communication that is conspicuously marked or otherwise
+  designated in writing by the copyright owner as "Not a Contribution."
+
+  "Contributor" shall mean Licensor and any individual or Legal Entity
+  on behalf of whom a Contribution has been received by Licensor and
+  subsequently incorporated within the Work.
+
+2. Grant of Copyright License. Subject to the terms and conditions of
+  this License, each Contributor hereby grants to You a perpetual,
+  worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+  copyright license to reproduce, prepare Derivative Works of,
+  publicly display, publicly perform, sublicense, and distribute the
+  Work and such Derivative Works in Source or Object form.
+
+3. Grant of Patent License. Subject to the terms and conditions of
+  this License, each Contributor hereby grants to You a perpetual,
+  worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+  (except as stated in this section) patent license to make, have made,
+  use, offer to sell, sell, import, and otherwise transfer the Work,
+  where such license applies only to those patent claims licensable
+  by such Contributor that are necessarily infringed by their
+  Contribution(s) alone or by combination of their Contribution(s)
+  with the Work to which such Contribution(s) was submitted. If You
+  institute patent litigation against any entity (including a
+  cross-claim or counterclaim in a lawsuit) alleging that the Work
+  or a Contribution incorporated within the Work constitutes direct
+  or contributory patent infringement, then any patent licenses
+  granted to You under this License for that Work shall terminate
+  as of the date such litigation is filed.
+
+4. Redistribution. You may reproduce and distribute copies of the
+  Work or Derivative Works thereof in any medium, with or without
+  modifications, and in Source or Object form, provided that You
+  meet the following conditions:
+
+  (a) You must give any other recipients of the Work or
+      Derivative Works a copy of this License; and
+
+  (b) You must cause any modified files to carry prominent notices
+      stating that You changed the files; and
+
+  (c) You must retain, in the Source form of any Derivative Works
+      that You distribute, all copyright, patent, trademark, and
+      attribution notices from the Source form of the Work,
+      excluding those notices that do not pertain to any part of
+      the Derivative Works; and
+
+  (d) If the Work includes a "NOTICE" text file as part of its
+      distribution, then any Derivative Works that You distribute must
+      include a readable copy of the attribution notices contained
+      within such NOTICE file, excluding those notices that do not
+      pertain to any part of the Derivative Works, in at least one
+      of the following places: within a NOTICE text file distributed
+      as part of the Derivative Works; within the Source form or
+      documentation, if provided along with the Derivative Works; or,
+      within a display generated by the Derivative Works, if and
+      wherever such third-party notices normally appear. The contents
+      of the NOTICE file are for informational purposes only and
+      do not modify the License. You may add Your own attribution
+      notices within Derivative Works that You distribute, alongside
+      or as an addendum to the NOTICE text from the Work, provided
+      that such additional attribution notices cannot be construed
+      as modifying the License.
+
+  You may add Your own copyright statement to Your modifications and
+  may provide additional or different license terms and conditions
+  for use, reproduction, or distribution of Your modifications, or
+  for any such Derivative Works as a whole, provided Your use,
+  reproduction, and distribution of the Work otherwise complies with
+  the conditions stated in this License.
+
+5. Submission of Contributions. Unless You explicitly state otherwise,
+  any Contribution intentionally submitted for inclusion in the Work
+  by You to the Licensor shall be under the terms and conditions of
+  this License, without any additional terms or conditions.
+  Notwithstanding the above, nothing herein shall supersede or modify
+  the terms of any separate license agreement you may have executed
+  with Licensor regarding such Contributions.
+
+6. Trademarks. This License does not grant permission to use the trade
+  names, trademarks, service marks, or product names of the Licensor,
+  except as required for reasonable and customary use in describing the
+  origin of the Work and reproducing the content of the NOTICE file.
+
+7. Disclaimer of Warranty. Unless required by applicable law or
+  agreed to in writing, Licensor provides the Work (and each
+  Contributor provides its Contributions) on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+  implied, including, without limitation, any warranties or conditions
+  of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+  PARTICULAR PURPOSE. You are solely responsible for determining the
+  appropriateness of using or redistributing the Work and assume any
+  risks associated with Your exercise of permissions under this License.
+
+8. Limitation of Liability. In no event and under no legal theory,
+  whether in tort (including negligence), contract, or otherwise,
+  unless required by applicable law (such as deliberate and grossly
+  negligent acts) or agreed to in writing, shall any Contributor be
+  liable to You for damages, including any direct, indirect, special,
+  incidental, or consequential damages of any character arising as a
+  result of this License or out of the use or inability to use the
+  Work (including but not limited to damages for loss of goodwill,
+  work stoppage, computer failure or malfunction, or any and all
+  other commercial damages or losses), even if such Contributor
+  has been advised of the possibility of such damages.
+
+9. Accepting Warranty or Additional Liability. While redistributing
+  the Work or Derivative Works thereof, You may choose to offer,
+  and charge a fee for, acceptance of support, warranty, indemnity,
+  or other liability obligations and/or rights consistent with this
+  License. However, in accepting such obligations, You may act only
+  on Your own behalf and on Your sole responsibility, not on behalf
+  of any other Contributor, and only if You agree to indemnify,
+  defend, and hold each Contributor harmless for any liability
+  incurred by, or claims asserted against, such Contributor by reason
+  of your accepting any such warranty or additional liability.
+
+END OF TERMS AND CONDITIONS
+
+APPENDIX: How to apply the Apache License to your work.
+
+  To apply the Apache License to your work, attach the following
+  boilerplate notice, with the fields enclosed by brackets "[]"
+  replaced with your own identifying information. (Don't include
+  the brackets!)  The text should be enclosed in the appropriate
+  comment syntax for the file format. We also recommend that a
+  file or class name and description of purpose be included on the
+  same "printed page" as the copyright notice for easier
+  identification within third-party archives.
+
+Copyright [yyyy] [name of copyright owner]
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
@@ -0,0 +1,2 @@
+# @polkadot/hw-ledger-transports
+
@@ -0,0 +1,24 @@
+{
+  "name": "@polkadot/hw-ledger-transports",
+  "version": "5.2.4-5",
+  "repository": "github:polkadot-js/common",
+  "author": "Jaco Greeff <jacogr@gmail.com>",
+  "maintainers": [],
+  "contributors": [],
+  "license": "Apache-2.0",
+  "main": "node.js",
+  "browser": "browser.js",
+  "react-native": "react-native.js",
+  "sideEffects": false,
+  "dependencies": {
+    "@babel/runtime": "^7.12.5",
+    "@ledgerhq/hw-transport-webusb": "^5.38.0"
+  },
+  "devDependencies": {
+    "@types/ledgerhq__hw-transport-node-hid": "^4.22.2",
+    "@types/ledgerhq__hw-transport-webusb": "^4.70.1"
+  },
+  "optionalDependencies": {
+    "@ledgerhq/hw-transport-node-hid-singleton": "^5.38.0"
+  }
+}
@@ -0,0 +1,24 @@
+// Copyright 2017-2021 @polkadot/hw-ledger authors & contributors
+// SPDX-License-Identifier: Apache-2.0
+
+import type Transport from '@ledgerhq/hw-transport';
+import type { TransportDef } from './types';
+
+import LedgerWebUSB from '@ledgerhq/hw-transport-webusb';
+
+const transports: TransportDef[] = [
+  // deprecated
+  // import LedgerU2F from '@ledgerhq/hw-transport-u2f';
+  // {
+  //   create: (): Promise<Transport> =>
+  //     LedgerU2F.create(),
+  //   type: 'u2f'
+  // },
+  {
+    create: (): Promise<Transport> =>
+      LedgerWebUSB.create(),
+    type: 'webusb'
+  }
+];
+
+export { transports };
@@ -0,0 +1,15 @@
+// Copyright 2017-2021 @polkadot/hw-ledger authors & contributors
+// SPDX-License-Identifier: Apache-2.0
+
+declare module '@ledgerhq/hw-transport-node-hid-noevents' {
+  import Transport from '@ledgerhq/hw-transport';
+
+  export default class TransportNodeHidNoEvents extends Transport<string> {}
+  export function getDevices(): Array<unknown>
+}
+
+declare module '@ledgerhq/hw-transport-node-hid-singleton' {
+  import TransportNodeHidNoEvents from '@ledgerhq/hw-transport-node-hid-noevents';
+
+  export default class TransportNodeHid extends TransportNodeHidNoEvents { }
+}
@@ -0,0 +1,17 @@
+// Copyright 2017-2021 @polkadot/hw-ledger authors & contributors
+// SPDX-License-Identifier: Apache-2.0
+
+import type Transport from '@ledgerhq/hw-transport';
+import type { TransportDef } from './types';
+
+import LedgerHid from '@ledgerhq/hw-transport-node-hid-singleton';
+
+const transports: TransportDef[] = [
+  {
+    create: (): Promise<Transport> =>
+      LedgerHid.create(),
+    type: 'hid'
+  }
+];
+
+export { transports };
@@ -0,0 +1,8 @@
+// Copyright 2017-2021 @polkadot/hw-ledger authors & contributors
+// SPDX-License-Identifier: Apache-2.0
+
+import type { TransportDef } from './types';
+
+const transports: TransportDef[] = [];
+
+export { transports };
@@ -0,0 +1,11 @@
+// Copyright 2017-2021 @polkadot/hw-ledger authors & contributors
+// SPDX-License-Identifier: Apache-2.0
+
+import Transport from '@ledgerhq/hw-transport';
+
+export type LedgerTypes = 'hid' | 'u2f' | 'webusb';
+
+export interface TransportDef {
+  create (): Promise<Transport>;
+  type: LedgerTypes;
+}
@@ -0,0 +1,201 @@
+                              Apache License
+                        Version 2.0, January 2004
+                    http://www.apache.org/licenses/
+
+TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+1. Definitions.
+
+  "License" shall mean the terms and conditions for use, reproduction,
+  and distribution as defined by Sections 1 through 9 of this document.
+
+  "Licensor" shall mean the copyright owner or entity authorized by
+  the copyright owner that is granting the License.
+
+  "Legal Entity" shall mean the union of the acting entity and all
+  other entities that control, are controlled by, or are under common
+  control with that entity. For the purposes of this definition,
+  "control" means (i) the power, direct or indirect, to cause the
+  direction or management of such entity, whether by contract or
+  otherwise, or (ii) ownership of fifty percent (50%) or more of the
+  outstanding shares, or (iii) beneficial ownership of such entity.
+
+  "You" (or "Your") shall mean an individual or Legal Entity
+  exercising permissions granted by this License.
+
+  "Source" form shall mean the preferred form for making modifications,
+  including but not limited to software source code, documentation
+  source, and configuration files.
+
+  "Object" form shall mean any form resulting from mechanical
+  transformation or translation of a Source form, including but
+  not limited to compiled object code, generated documentation,
+  and conversions to other media types.
+
+  "Work" shall mean the work of authorship, whether in Source or
+  Object form, made available under the License, as indicated by a
+  copyright notice that is included in or attached to the work
+  (an example is provided in the Appendix below).
+
+  "Derivative Works" shall mean any work, whether in Source or Object
+  form, that is based on (or derived from) the Work and for which the
+  editorial revisions, annotations, elaborations, or other modifications
+  represent, as a whole, an original work of authorship. For the purposes
+  of this License, Derivative Works shall not include works that remain
+  separable from, or merely link (or bind by name) to the interfaces of,
+  the Work and Derivative Works thereof.
+
+  "Contribution" shall mean any work of authorship, including
+  the original version of the Work and any modifications or additions
+  to that Work or Derivative Works thereof, that is intentionally
+  submitted to Licensor for inclusion in the Work by the copyright owner
+  or by an individual or Legal Entity authorized to submit on behalf of
+  the copyright owner. For the purposes of this definition, "submitted"
+  means any form of electronic, verbal, or written communication sent
+  to the Licensor or its representatives, including but not limited to
+  communication on electronic mailing lists, source code control systems,
+  and issue tracking systems that are managed by, or on behalf of, the
+  Licensor for the purpose of discussing and improving the Work, but
+  excluding communication that is conspicuously marked or otherwise
+  designated in writing by the copyright owner as "Not a Contribution."
+
+  "Contributor" shall mean Licensor and any individual or Legal Entity
+  on behalf of whom a Contribution has been received by Licensor and
+  subsequently incorporated within the Work.
+
+2. Grant of Copyright License. Subject to the terms and conditions of
+  this License, each Contributor hereby grants to You a perpetual,
+  worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+  copyright license to reproduce, prepare Derivative Works of,
+  publicly display, publicly perform, sublicense, and distribute the
+  Work and such Derivative Works in Source or Object form.
+
+3. Grant of Patent License. Subject to the terms and conditions of
+  this License, each Contributor hereby grants to You a perpetual,
+  worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+  (except as stated in this section) patent license to make, have made,
+  use, offer to sell, sell, import, and otherwise transfer the Work,
+  where such license applies only to those patent claims licensable
+  by such Contributor that are necessarily infringed by their
+  Contribution(s) alone or by combination of their Contribution(s)
+  with the Work to which such Contribution(s) was submitted. If You
+  institute patent litigation against any entity (including a
+  cross-claim or counterclaim in a lawsuit) alleging that the Work
+  or a Contribution incorporated within the Work constitutes direct
+  or contributory patent infringement, then any patent licenses
+  granted to You under this License for that Work shall terminate
+  as of the date such litigation is filed.
+
+4. Redistribution. You may reproduce and distribute copies of the
+  Work or Derivative Works thereof in any medium, with or without
+  modifications, and in Source or Object form, provided that You
+  meet the following conditions:
+
+  (a) You must give any other recipients of the Work or
+      Derivative Works a copy of this License; and
+
+  (b) You must cause any modified files to carry prominent notices
+      stating that You changed the files; and
+
+  (c) You must retain, in the Source form of any Derivative Works
+      that You distribute, all copyright, patent, trademark, and
+      attribution notices from the Source form of the Work,
+      excluding those notices that do not pertain to any part of
+      the Derivative Works; and
+
+  (d) If the Work includes a "NOTICE" text file as part of its
+      distribution, then any Derivative Works that You distribute must
+      include a readable copy of the attribution notices contained
+      within such NOTICE file, excluding those notices that do not
+      pertain to any part of the Derivative Works, in at least one
+      of the following places: within a NOTICE text file distributed
+      as part of the Derivative Works; within the Source form or
+      documentation, if provided along with the Derivative Works; or,
+      within a display generated by the Derivative Works, if and
+      wherever such third-party notices normally appear. The contents
+      of the NOTICE file are for informational purposes only and
+      do not modify the License. You may add Your own attribution
+      notices within Derivative Works that You distribute, alongside
+      or as an addendum to the NOTICE text from the Work, provided
+      that such additional attribution notices cannot be construed
+      as modifying the License.
+
+  You may add Your own copyright statement to Your modifications and
+  may provide additional or different license terms and conditions
+  for use, reproduction, or distribution of Your modifications, or
+  for any such Derivative Works as a whole, provided Your use,
+  reproduction, and distribution of the Work otherwise complies with
+  the conditions stated in this License.
+
+5. Submission of Contributions. Unless You explicitly state otherwise,
+  any Contribution intentionally submitted for inclusion in the Work
+  by You to the Licensor shall be under the terms and conditions of
+  this License, without any additional terms or conditions.
+  Notwithstanding the above, nothing herein shall supersede or modify
+  the terms of any separate license agreement you may have executed
+  with Licensor regarding such Contributions.
+
+6. Trademarks. This License does not grant permission to use the trade
+  names, trademarks, service marks, or product names of the Licensor,
+  except as required for reasonable and customary use in describing the
+  origin of the Work and reproducing the content of the NOTICE file.
+
+7. Disclaimer of Warranty. Unless required by applicable law or
+  agreed to in writing, Licensor provides the Work (and each
+  Contributor provides its Contributions) on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+  implied, including, without limitation, any warranties or conditions
+  of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+  PARTICULAR PURPOSE. You are solely responsible for determining the
+  appropriateness of using or redistributing the Work and assume any
+  risks associated with Your exercise of permissions under this License.
+
+8. Limitation of Liability. In no event and under no legal theory,
+  whether in tort (including negligence), contract, or otherwise,
+  unless required by applicable law (such as deliberate and grossly
+  negligent acts) or agreed to in writing, shall any Contributor be
+  liable to You for damages, including any direct, indirect, special,
+  incidental, or consequential damages of any character arising as a
+  result of this License or out of the use or inability to use the
+  Work (including but not limited to damages for loss of goodwill,
+  work stoppage, computer failure or malfunction, or any and all
+  other commercial damages or losses), even if such Contributor
+  has been advised of the possibility of such damages.
+
+9. Accepting Warranty or Additional Liability. While redistributing
+  the Work or Derivative Works thereof, You may choose to offer,
+  and charge a fee for, acceptance of support, warranty, indemnity,
+  or other liability obligations and/or rights consistent with this
+  License. However, in accepting such obligations, You may act only
+  on Your own behalf and on Your sole responsibility, not on behalf
+  of any other Contributor, and only if You agree to indemnify,
+  defend, and hold each Contributor harmless for any liability
+  incurred by, or claims asserted against, such Contributor by reason
+  of your accepting any such warranty or additional liability.
+
+END OF TERMS AND CONDITIONS
+
+APPENDIX: How to apply the Apache License to your work.
+
+  To apply the Apache License to your work, attach the following
+  boilerplate notice, with the fields enclosed by brackets "[]"
+  replaced with your own identifying information. (Don't include
+  the brackets!)  The text should be enclosed in the appropriate
+  comment syntax for the file format. We also recommend that a
+  file or class name and description of purpose be included on the
+  same "printed page" as the copyright notice for easier
+  identification within third-party archives.
+
+Copyright [yyyy] [name of copyright owner]
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
@@ -0,0 +1,2 @@
+# @polkadot/hw-ledger
+
@@ -0,0 +1,18 @@
+{
+  "name": "@polkadot/hw-ledger",
+  "version": "5.2.4-5",
+  "repository": "github:polkadot-js/common",
+  "author": "Jaco Greeff <jacogr@gmail.com>",
+  "maintainers": [],
+  "contributors": [],
+  "license": "Apache-2.0",
+  "main": "index.js",
+  "module": "index.mjs",
+  "sideEffects": false,
+  "dependencies": {
+    "@babel/runtime": "^7.12.5",
+    "@polkadot/hw-ledger-transports": "5.2.4-5",
+    "@polkadot/util": "^5.2.4-5",
+    "@zondax/ledger-polkadot": "^0.13.0"
+  }
+}
@@ -0,0 +1,118 @@
+// Copyright 2017-2021 @polkadot/hw-ledger authors & contributors
+// SPDX-License-Identifier: Apache-2.0
+
+import type Transport from '@ledgerhq/hw-transport';
+import type { AccountOptions, LedgerAddress, LedgerSignature, LedgerTypes, LedgerVersion } from './types';
+
+import { newDockApp, newKusamaApp, newPolkadotApp, newPolymeshApp, ResponseBase, SubstrateApp } from '@zondax/ledger-polkadot';
+
+import { transports } from '@polkadot/hw-ledger-transports';
+import { assert, bufferToU8a, u8aToBuffer, u8aToHex } from '@polkadot/util';
+
+export const LEDGER_DEFAULT_ACCOUNT = 0x80000000;
+
+export const LEDGER_DEFAULT_CHANGE = 0x80000000;
+
+export const LEDGER_DEFAULT_INDEX = 0x80000000;
+
+const SUCCESS_CODE = 0x9000;
+
+// These match up with the network keys in the @polkadot/networks package
+// (which is turn aligns with the substrate/ss58-registry.json as the single
+// source of truth)
+const APPS: Record<string, (transport: Transport) => SubstrateApp> = {
+  dock: newDockApp,
+  kusama: newKusamaApp,
+  polkadot: newPolkadotApp,
+  polymath: newPolymeshApp
+};
+
+type Chain = keyof typeof APPS;
+
+// A very basic wrapper for a ledger app -
+//  - it connects automatically, creating an app as required
+//  - Promises return errors (instead of wrapper errors)
+export class Ledger {
+  #app: SubstrateApp | null = null;
+
+  #chain: Chain;
+
+  #transport: LedgerTypes;
+
+  constructor (transport: LedgerTypes, chain: Chain) {
+    // u2f is deprecated
+    assert(['hid', 'webusb'].includes(transport), `Unsupported transport ${transport}`);
+    assert(Object.keys(APPS).includes(chain), `Unsupported chain ${chain}`);
+
+    this.#chain = chain;
+    this.#transport = transport;
+  }
+
+  public async getAddress (confirm = false, accountOffset = 0, addressOffset = 0, { account = LEDGER_DEFAULT_ACCOUNT, addressIndex = LEDGER_DEFAULT_INDEX, change = LEDGER_DEFAULT_CHANGE }: Partial<AccountOptions> = {}): Promise<LedgerAddress> {
+    return this.#withApp(async (app: SubstrateApp): Promise<LedgerAddress> => {
+      const { address, pubKey } = await this.#wrapError(app.getAddress(account + accountOffset, change, addressIndex + addressOffset, confirm));
+
+      return {
+        address,
+        publicKey: `0x${pubKey}`
+      };
+    });
+  }
+
+  public async getVersion (): Promise<LedgerVersion> {
+    return this.#withApp(async (app: SubstrateApp): Promise<LedgerVersion> => {
+      const { device_locked: isLocked, major, minor, patch, test_mode: isTestMode } = await this.#wrapError(app.getVersion());
+
+      return {
+        isLocked,
+        isTestMode,
+        version: [major, minor, patch]
+      };
+    });
+  }
+
+  public async sign (message: Uint8Array, accountOffset = 0, addressOffset = 0, { account = LEDGER_DEFAULT_ACCOUNT, addressIndex = LEDGER_DEFAULT_INDEX, change = LEDGER_DEFAULT_CHANGE }: Partial<AccountOptions> = {}): Promise<LedgerSignature> {
+    return this.#withApp(async (app: SubstrateApp): Promise<LedgerSignature> => {
+      const buffer = u8aToBuffer(message);
+      const { signature } = await this.#wrapError(app.sign(account + accountOffset, change, addressIndex + addressOffset, buffer));
+
+      return {
+        signature: u8aToHex(bufferToU8a(signature))
+      };
+    });
+  }
+
+  #getApp = async (): Promise<SubstrateApp> => {
+    if (!this.#app) {
+      const def = transports.find(({ type }) => type === this.#transport);
+
+      assert(def, `Unable to find a transport for ${this.#transport}`);
+
+      const transport = await def.create();
+
+      this.#app = APPS[this.#chain](transport);
+    }
+
+    return this.#app;
+  };
+
+  #withApp = async <T> (fn: (app: SubstrateApp) => Promise<T>): Promise<T> => {
+    try {
+      const app = await this.#getApp();
+
+      return await fn(app);
+    } catch (error) {
+      this.#app = null;
+
+      throw error;
+    }
+  };
+
+  #wrapError = async <T extends ResponseBase> (promise: Promise<T>): Promise<T> => {
+    const result = await promise;
+
+    assert(result.return_code === SUCCESS_CODE, result.error_message);
+
+    return result;
+  };
+}
@@ -0,0 +1,25 @@
+// Copyright 2017-2021 @polkadot/hw-ledger authors & contributors
+// SPDX-License-Identifier: Apache-2.0
+
+export type LedgerTypes = 'hid' | 'u2f' | 'webusb';
+
+export interface AccountOptions {
+  account: number;
+  addressIndex: number;
+  change: number;
+}
+
+export interface LedgerAddress {
+  address: string;
+  publicKey: string;
+}
+
+export interface LedgerSignature {
+  signature: string;
+}
+
+export interface LedgerVersion {
+  isLocked: boolean;
+  isTestMode: boolean;
+  version: [number, number, number];
+}
@@ -7,6 +7,10 @@
  "compilerOptions": {
    "baseUrl": ".",
    "paths": {
+      "@polkadot/hw-ledger": [ "packages/ledger/src" ],
+      "@polkadot/hw-ledger/*": [ "packages/ledger/src/*" ],
+      "@polkadot/hw-ledger-transports": [ "packages/hw-ledger-transports/src/browser" ],
+      "@polkadot/hw-ledger-transports/*": [ "packages/hw-ledger-transports/src/browser" ],
      "@polkadot/keyring": [ "packages/keyring/src" ],
      "@polkadot/keyring/*": [ "packages/keyring/src/*" ],
      "@polkadot/networks": [ "packages/networks/src" ],
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@@ -7468,6 +7710,15 @@ fsevents@~2.1.2:
  languageName: node
  linkType: hard

+"nan@npm:^2.13.2":
+  version: 2.14.2
+  resolution: "nan@npm:2.14.2"
+  dependencies:
+    node-gyp: latest
+  checksum: 36349b2e5df4182aa0d0cc43fcd6cc782ca560a83c2764743d80c14ba5028d0c54041a2f464b8d4cb18a884e04415034a0a764c745e1d5502ea34a5cb6470a39
+  languageName: node
+  linkType: hard
+
 "nanoid@npm:^3.1.20":
  version: 3.1.20
  resolution: "nanoid@npm:3.1.20"
@@ -7496,6 +7747,13 @@ fsevents@~2.1.2:
  languageName: node
  linkType: hard

+"napi-build-utils@npm:^1.0.1":
+  version: 1.0.2
+  resolution: "napi-build-utils@npm:1.0.2"
+  checksum: e4dfbec94d315533fea33a96ef5fb4de0d9e8828f2bb2b30e38de089500dfe35fe058ea5bcd72e104381457263f854c3d52d4d8700df9e1f9e6b78e9500ba435
+  languageName: node
+  linkType: hard
+
 "natural-compare-lite@npm:^1.4.0":
  version: 1.4.0
  resolution: "natural-compare-lite@npm:1.4.0"
@@ -7531,6 +7789,24 @@ fsevents@~2.1.2:
  languageName: node
  linkType: hard

+"node-abi@npm:^2.7.0":
+  version: 2.19.3
+  resolution: "node-abi@npm:2.19.3"
+  dependencies:
+    semver: ^5.4.1
+  checksum: 503acaa092dbf3e1d4cd96fb8496f726d6d0b3f441e37c8e8be8a622fe88d9fcda495e2016a687c1c147a28c2a9b24bd9ce39f5ae5ac8223c30ab20aece376d8
+  languageName: node
+  linkType: hard
+
+"node-addon-api@npm:^3.0.2":
+  version: 3.1.0
+  resolution: "node-addon-api@npm:3.1.0"
+  dependencies:
+    node-gyp: latest
+  checksum: 9b5c1f5f24acb9255fd47914b0f0b80c76d735b7b91611366cd30217f8ead5fafcd1cfeb65e467612b40420b6ad3faf1e7fa3666bd4e15a2bdf1762748f3fa8a
+  languageName: node
+  linkType: hard
+
 "node-fetch@npm:^2.6.0, node-fetch@npm:^2.6.1":
  version: 2.6.1
  resolution: "node-fetch@npm:2.6.1"
@@ -7569,6 +7845,20 @@ fsevents@~2.1.2:
  languageName: node
  linkType: hard

+"node-hid@npm:2.1.1":
+  version: 2.1.1
+  resolution: "node-hid@npm:2.1.1"
+  dependencies:
+    bindings: ^1.5.0
+    node-addon-api: ^3.0.2
+    node-gyp: latest
+    prebuild-install: ^6.0.0
+  bin:
+    hid-showdevices: src/show-devices.js
+  checksum: e39bf570b6c6687272b0c247491b44dbc111dda8c83c4774993967b528455230484e2251a56db4ea15ad18c5fa78eb3390d1f4e237f30b82a65706e14bd06f19
+  languageName: node
+  linkType: hard
+
 "node-int64@npm:^0.4.0":
  version: 0.4.0
  resolution: "node-int64@npm:0.4.0"
@@ -7613,6 +7903,13 @@ fsevents@~2.1.2:
  languageName: node
  linkType: hard

+"noop-logger@npm:^0.1.1":
+  version: 0.1.1
+  resolution: "noop-logger@npm:0.1.1"
+  checksum: 353d31cd08698c797af21069df593772a081b694d0edbb3f1d9aca526ddc414bb0992e3deb9aaf69ad197ddee3a5e3be6dd09043023d3abe385d2872a863829c
+  languageName: node
+  linkType: hard
+
 "nopt@npm:^5.0.0":
  version: 5.0.0
  resolution: "nopt@npm:5.0.0"
@@ -7689,7 +7986,7 @@ fsevents@~2.1.2:
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-"npmlog@npm:^4.1.2":
+"npmlog@npm:^4.0.1, npmlog@npm:^4.1.2":
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  resolution: "npmlog@npm:4.1.2"
  dependencies:
@@ -8270,6 +8567,56 @@ fsevents@~2.1.2:
  languageName: node
  linkType: hard

+"prebuild-install@npm:^5.3.5":
+  version: 5.3.6
+  resolution: "prebuild-install@npm:5.3.6"
+  dependencies:
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+    expand-template: ^2.0.3
+    github-from-package: 0.0.0
+    minimist: ^1.2.3
+    mkdirp-classic: ^0.5.3
+    napi-build-utils: ^1.0.1
+    node-abi: ^2.7.0
+    noop-logger: ^0.1.1
+    npmlog: ^4.0.1
+    pump: ^3.0.0
+    rc: ^1.2.7
+    simple-get: ^3.0.3
+    tar-fs: ^2.0.0
+    tunnel-agent: ^0.6.0
+    which-pm-runs: ^1.0.0
+  bin:
+    prebuild-install: bin.js
+  checksum: 81ff157668dc26349e1f8076fce0ba990f45481e39a64645efad60c9ae2d61e73e3c420d56f5f38fbe6dc3275e8e27067d2613d941c778f41658a6110e544130
+  languageName: node
+  linkType: hard
+
+"prebuild-install@npm:^6.0.0":
+  version: 6.0.0
+  resolution: "prebuild-install@npm:6.0.0"
+  dependencies:
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+    expand-template: ^2.0.3
+    github-from-package: 0.0.0
+    minimist: ^1.2.3
+    mkdirp-classic: ^0.5.3
+    napi-build-utils: ^1.0.1
+    node-abi: ^2.7.0
+    noop-logger: ^0.1.1
+    npmlog: ^4.0.1
+    pump: ^3.0.0
+    rc: ^1.2.7
+    simple-get: ^3.0.3
+    tar-fs: ^2.0.0
+    tunnel-agent: ^0.6.0
+    which-pm-runs: ^1.0.0
+  bin:
+    prebuild-install: ./bin.js
+  checksum: 02db5ebaf2c45996a5005928996ffcd2cf13ed5daf10386b3b4fc0ea51d27c4d045fa21acaf4359c07474773bed1d4e4f55f8a33b2efb24339566497cbe7d223
+  languageName: node
+  linkType: hard
+
 "precinct@npm:^7.0.0":
  version: 7.0.0
  resolution: "precinct@npm:7.0.0"
@@ -8989,7 +9336,7 @@ fsevents@~2.1.2:
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-"rxjs@npm:^6.6.0":
+"rxjs@npm:^6.6.0, rxjs@npm:^6.6.3":
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  resolution: "rxjs@npm:6.6.3"
  dependencies:
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  languageName: node
  linkType: hard

+"simple-get@npm:^3.0.3":
+  version: 3.1.0
+  resolution: "simple-get@npm:3.1.0"
+  dependencies:
+    decompress-response: ^4.2.0
+    once: ^1.3.1
+    simple-concat: ^1.0.0
+  checksum: f56f08765eafde034b379d38d3dd1eb9b9ffb41d090d8216e71dce6ea3936499ee34b20942773a2605b08e8abce940691bd06e110ac12d08f83917493078831e
+  languageName: node
+  linkType: hard
+
 "simple-get@npm:^4.0.0":
  version: 4.0.0
  resolution: "simple-get@npm:4.0.0"
@@ -9812,6 +10170,31 @@ fsevents@~2.1.2:
  languageName: node
  linkType: hard

+"tar-fs@npm:^2.0.0":
+  version: 2.1.1
+  resolution: "tar-fs@npm:2.1.1"
+  dependencies:
+    chownr: ^1.1.1
+    mkdirp-classic: ^0.5.2
+    pump: ^3.0.0
+    tar-stream: ^2.1.4
+  checksum: 4739382487b6ed646670a52cac637c818ecdceb728eb4718847dfdaddd7322d8cce2ea9db160ba8ad2920194034fda7c307b44f4eeb50d244f198bd7e28f2914
+  languageName: node
+  linkType: hard
+
+"tar-stream@npm:^2.1.4":
+  version: 2.2.0
+  resolution: "tar-stream@npm:2.2.0"
+  dependencies:
+    bl: ^4.0.3
+    end-of-stream: ^1.4.1
+    fs-constants: ^1.0.0
+    inherits: ^2.0.3
+    readable-stream: ^3.1.1
+  checksum: 7eec0a7fc8d0337729c1c2356d567a7527141d6ba0dd4804db979e17fc6389163e70fd4abdb855fc5ab54b944aeff7988e35e95ab6cee34a4156ca2d42980576
+  languageName: node
+  linkType: hard
+
 "tar@npm:^6.0.2":
  version: 6.0.5
  resolution: "tar@npm:6.0.5"
@@ -10346,6 +10729,19 @@ fsevents@~2.1.2:
  languageName: node
  linkType: hard

+"usb-detection@npm:^4.10.0":
+  version: 4.10.0
+  resolution: "usb-detection@npm:4.10.0"
+  dependencies:
+    bindings: ^1.3.0
+    eventemitter2: ^5.0.1
+    nan: ^2.13.2
+    node-gyp: latest
+    prebuild-install: ^5.3.5
+  checksum: 17c60db18f268ef679fc3401d39348c0a248b588a46a0b7dde25fb866849511c00503b4cb4dceac02651caf5d6964388c92b46a0fb8b9b53eab3e5e520dd0a44
+  languageName: node
+  linkType: hard
+
 "use@npm:^3.1.0":
  version: 3.1.1
  resolution: "use@npm:3.1.1"
@@ -10553,6 +10949,13 @@ fsevents@~2.1.2:
  languageName: node
  linkType: hard

+"which-pm-runs@npm:^1.0.0":
+  version: 1.0.0
+  resolution: "which-pm-runs@npm:1.0.0"
+  checksum: 0bb79a782e98955afec8f35a3ae95c4711fdd3d0743772ee98211da67c2421fdd4c92c95c93532cc0b4dcc085d8e27f3ad2f8a9173cb632692379bd3d2818821
+  languageName: node
+  linkType: hard
+
 "which@npm:^1.2.9":
  version: 1.3.1
  resolution: "which@npm:1.3.1"