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iam: wip use API-KEY for interim iam support
work in progress Fixes: #147
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,123 @@ | ||
| /* | ||
| * Copyright IBM Corp. 2015 | ||
| * | ||
| * 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. | ||
| */ | ||
|
|
||
| /* eslint no-console: "off" */ | ||
|
|
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| // const crypto = require('crypto'); | ||
| // const url = require('url'); | ||
| /** | ||
| * @author Steven R. Loomis | ||
| * @ignore | ||
| */ | ||
|
|
||
| const GpIAM = function GpIAM(credentials) { | ||
| this.credentials = credentials; | ||
| if(!this.credentials || !this.credentials.apikey || !this.credentials.iam_endpoint) { | ||
| throw new Error('GpIAM: params need to be "apikey, iam_endpoint"'); | ||
| } | ||
| }; | ||
|
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| GpIAM.prototype.name = null; | ||
| GpIAM.prototype.user = undefined; | ||
| GpIAM.prototype.secret = undefined; | ||
|
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| GpIAM.prototype.API_KEY = "API-KEY"; | ||
| // GpIAM.prototype.AUTH_SCHEME = "GP-HMAC"; | ||
| GpIAM.prototype.SEP = "\n"; | ||
| GpIAM.prototype.ENC = "ascii"; // ISO-8859-1 not supported! | ||
| GpIAM.prototype.HMAC_SHA1_ALGORITHM = 'sha1'; // "HmacSHA1"; | ||
| GpIAM.prototype.forceDate = null; | ||
| GpIAM.prototype.forceDateString = null; | ||
|
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| GpIAM.prototype.VERBOSE = process.env.GP_VERBOSE || false; | ||
|
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| // function rfc1123date(d) { | ||
| // return d.toUTCString(); | ||
| // } | ||
|
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| /** | ||
| * ( from GpIAM.java ) | ||
| * | ||
| * Generate GaaS HMAC credentials used for HTTP Authorization header. | ||
| * Gaas HMAC uses HMAC SHA1 algorithm signing a message composed by: | ||
| * | ||
| * (HTTP method): (in UPPERCASE) | ||
| * (Target URL): | ||
| * (RFC1123 date): | ||
| * (Request Body) | ||
| * | ||
| * If the request body is empty, it is simply omitted, | ||
| * the 'message' then ends with the separator ":" | ||
| * | ||
| * The format for HTTP Authorization header is: | ||
| * | ||
| * "Authorization: GaaS-HMAC (user ID):(HMAC above)" | ||
| * | ||
| * For example, with user "MyUser" and secret "MySecret", | ||
| * the URL "http://example.com/gaas", | ||
| * the method "https", | ||
| * the date "Mon, 30 Jun 2014 00:00:00 -0000", | ||
| * the body "param=value", | ||
| * the following text to be signed will be generated: | ||
| * | ||
| * GET:http://example.com/gaas:Mon, 30 Jun 2014 00:00:00 -0000:param=value | ||
| * | ||
| * And the resulting headers are: | ||
| * Authorization: GaaS-HMAC MyUser:Y4qPpmKpyYhdAKA7p3U/y4nNDvY= | ||
| * Date: Mon, 30 Jun 2014 00:00:00 -0000 | ||
| * | ||
| * The Date: header is required for HMAC. | ||
| */ | ||
| GpIAM.prototype.apply = function(obj) { | ||
| if(this.VERBOSE) console.dir(obj, {color: true, depth: null}); | ||
| if(obj.url.indexOf("/swagger.json") !== -1) return obj; // skip for swagger.json | ||
|
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||
| // const href = url.parse(obj.url).href; | ||
| // if(href !== obj.url) { | ||
| // if(this.VERBOSE) console.log('hmac: Warn: normalized', obj.url, '->', href); | ||
| // // For example, if there is a quote (') in the URL, it will turn into %27 | ||
| // // AFTER this interceptor is called (by Fetch). | ||
| // obj.url = href; | ||
| // } | ||
|
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||
| // var dateString = (this.forceDateString || | ||
| // rfc1123date(this.forceDate || new Date())); | ||
| // var bodyString = ""; | ||
| // if(obj.body) { | ||
| // if((typeof obj.body) === "string") { | ||
| // bodyString = obj.body; | ||
| // } else { | ||
| // bodyString = JSON.stringify(obj.body); // === what swagger does | ||
| // } | ||
| // } | ||
| // var hmacText = obj.method.toUpperCase() + this.SEP + | ||
| // obj.url + this.SEP + | ||
| // dateString + this.SEP + | ||
| // bodyString; | ||
| // if(this.VERBOSE) console.log('hmacText = <<' + hmacText + '>>'); | ||
|
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| // var hmacHash = crypto.createHmac(this.HMAC_SHA1_ALGORITHM, this.secretBuffer ) | ||
| // .update(hmacText, 'utf8') | ||
| // .digest('base64'); | ||
| // if(this.VERBOSE) console.log('hmacHash = ' + hmacHash ); | ||
| var hmacHeader = this.API_KEY + ' ' + this.credentials.apikey; | ||
| if(this.VERBOSE) console.log('hmacHeader = ' + hmacHeader); | ||
| obj.headers.Authorization = hmacHeader; | ||
| // obj.headers["GP-Date"] = dateString; | ||
| return obj; | ||
| }; | ||
|
|
||
| module.exports = GpIAM; |
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