feat: add support for cdn/github strategy

Author: bartosz-lipinski

.gitignore

@@ -1,6 +1,6 @@
 .idea/*
 .nyc_output
-build
+dist
 node_modules
 test
 src/**.js

LICENSE

@@ -1,21 +1,202 @@
-MIT License
-
-Copyright (c) 2019 bartosz-lipinski
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
+                                 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.
+   limitations under the License.

package-lock.json

@@ -1,12 +1,12 @@
 {
-  "name": "@solana/token-list",
+  "name": "@solana/spl-token-registry",
   "version": "0.1.0",
-  "description": "Solana Token List",
-  "main": "build/main/index.js",
-  "typings": "build/main/index.d.ts",
-  "module": "build/module/index.js",
-  "repository": "https://github.com/bartosz-lipinski/@solana/token-list",
-  "license": "MIT",
+  "description": "Solana Token Registry",
+  "main": "dist/main/index.js",
+  "typings": "dist/main/index.d.ts",
+  "module": "dist/module/index.js",
+  "repository": "https://github.com/solana-labs/token-list",
+  "license": "Apache",
   "keywords": [],
   "scripts": {
     "build": "run-p build:*",
@@ -41,7 +41,6 @@
   "engines": {
     "node": ">=10"
   },
-  "dependencies": {},
   "devDependencies": {
     "@ava/typescript": "^1.1.1",
     "@istanbuljs/nyc-config-typescript": "^1.0.1",
@@ -100,5 +99,8 @@
     "exclude": [
       "**/*.spec.js"
     ]
+  },
+  "dependencies": {
+    "cross-fetch": "^3.0.6"
   }
 }

package.json

@@ -2,6 +2,8 @@ import devnet from './../tokens/devnet.json';
 import mainnetBeta from './../tokens/mainnet-beta.json';
 import testnet from './../tokens/testnet.json';
 
+import * as cross from 'cross-fetch';
+
 export enum ENV {
   MainnetBeta = 'mainnet-beta',
   Testnet = 'testnet',
@@ -13,3 +15,78 @@ export const TOKENS = {
   [ENV.Testnet]: testnet,
   [ENV.Devnet]: devnet,
 };
+
+export interface KnownToken {
+  tokenSymbol: string;
+  tokenName: string;
+  icon?: string;
+  mintAddress: string;
+}
+
+export type KnownTokenMap = Map<string, KnownToken>;
+
+export class SolanaTokenListResolutionStrategy {
+  resolve = async (network: string) => {
+    throw new Error(`Not Implemented Yet. ${network}`,);
+  }
+}
+
+export class StaticTokenListResolutionStrategy {
+  resolve = async (network: string) => {
+    return TOKENS[network as ENV] as KnownToken[];
+  }
+}
+
+const queryJsonFiles = async (network: string, files: string[]) => {
+  const responses = await Promise.all(files.map(async repo => {
+    const response = await cross.fetch(`${repo}/${network}.json`);
+    const json = await response.json() as KnownToken[];
+
+    return json;
+  }));
+
+  return responses.reduce((acc, arr) => acc.concat(arr), []);
+}
+
+export class GitHubTokenListResolutionStrategy {
+  repositories = [
+    'https://github.com/solana-labs/token-list/tree/main/src/tokens',
+    'https://github.com/project-serum/serum-ts/tree/master/packages/tokens/src'
+  ];
+
+  resolve = async (network: string) => {
+    return queryJsonFiles(network, this.repositories);
+  }
+}
+
+export class CDNTokenListResolutionStrategy {
+  repositories = [
+    'https://cdn.jsdelivr.net/gh/solana-labs/token-list@tree/main/src/tokens',
+    'https://cdn.jsdelivr.net/gh/project-serum/serum-ts@tree/master/packages/tokens/src'
+  ];
+
+  resolve = async (network: string) => {
+    return queryJsonFiles(network, this.repositories);
+  }
+}
+
+export enum Strategy {
+  GitHub = 'GitHub',
+  Static = 'Static',
+  Solana = 'Solana',
+  CDN = 'CDN',
+}
+
+export class TokenListProvider {
+  static strategies = {
+    [Strategy.GitHub]: new GitHubTokenListResolutionStrategy(),
+    [Strategy.Static]: new StaticTokenListResolutionStrategy(),
+    [Strategy.Solana]: new SolanaTokenListResolutionStrategy(),
+    [Strategy.CDN]: new CDNTokenListResolutionStrategy(),
+  }
+
+
+  resolve = async (network: string, strategy: Strategy = Strategy.CDN) => {
+    return TokenListProvider.strategies[strategy].resolve(network);
+  };
+}