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| 1 | +// The MIT License (MIT) |
| 2 | +// |
| 3 | +// Copyright (c) 2021 Firebase |
| 4 | +// |
| 5 | +// Permission is hereby granted, free of charge, to any person obtaining a copy |
| 6 | +// of this software and associated documentation files (the "Software"), to deal |
| 7 | +// in the Software without restriction, including without limitation the rights |
| 8 | +// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 9 | +// copies of the Software, and to permit persons to whom the Software is |
| 10 | +// furnished to do so, subject to the following conditions: |
| 11 | +// |
| 12 | +// The above copyright notice and this permission notice shall be included in all |
| 13 | +// copies or substantial portions of the Software. |
| 14 | +// |
| 15 | +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 16 | +// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 17 | +// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 18 | +// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 19 | +// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 20 | +// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 21 | +// SOFTWARE. |
| 22 | + |
| 23 | +// Do NOT turn on a debug feature in production. |
| 24 | +const debugMode = process.env.FIREBASE_DEBUG_MODE === 'true'; |
| 25 | + |
| 26 | +interface DebugFeatures { |
| 27 | + skipCallableTokenVerification?: boolean; |
| 28 | +} |
| 29 | + |
| 30 | +function loadDebugFeatures(): DebugFeatures { |
| 31 | + if (!debugMode) return {}; |
| 32 | + try { |
| 33 | + const obj = JSON.parse(process.env.FIREBASE_DEBUG_FEATURES); |
| 34 | + if (typeof obj !== 'object') { |
| 35 | + return {}; |
| 36 | + } |
| 37 | + return obj as DebugFeatures; |
| 38 | + } catch (e) { |
| 39 | + return {}; |
| 40 | + } |
| 41 | +} |
| 42 | + |
| 43 | +/* @internal */ |
| 44 | +export function debugFeatureValue(feat: keyof DebugFeatures): unknown { |
| 45 | + if (!debugMode) return; |
| 46 | + return loadDebugFeatures()[feat]; |
| 47 | +} |
| 48 | + |
| 49 | +/* @internal */ |
| 50 | +export function isDebugFeatureEnabled(feat: keyof DebugFeatures): boolean { |
| 51 | + return debugMode && !!debugFeatureValue(feat); |
| 52 | +} |
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