forked from tsai/budibase
10 changed files with 147 additions and 66 deletions
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const environment = require("../environment") |
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const { apiKeyTable } = require("../db/dynamoClient") |
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function buildUpdateParams(key, property, usage) { |
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return { |
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primary: key, |
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condition: "#quota.#prop + :usage < #limits.model AND #quotaReset < :now", |
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expression: "ADD #quota.#prop :usage", |
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names: { |
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"#quota": "usageQuota", |
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"#prop": property, |
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"#limits": "limits", |
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"#quotaReset": "quotaReset", |
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}, |
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values: { |
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":usage": usage, |
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":now": Date.now(), |
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}, |
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} |
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} |
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// a normalised month in milliseconds
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const QUOTA_RESET = 2592000000 |
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exports.Properties = { |
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RECORD: "records", |
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UPLOAD: "storage", |
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VIEW: "views", |
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USER: "users", |
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AUTOMATION: "automationRuns", |
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} |
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exports.getAPIKey = async appId => { |
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return apiKeyTable.get({ primary: appId }) |
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} |
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/** |
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* Given a specified API key this will add to the usage object for the specified property. |
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* @param {string} apiKey The API key which is to be updated. |
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* @param {string} property The property which is to be added to (within the nested usageQuota object). |
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* @param {number} usage The amount (this can be negative) to adjust the number by. |
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* @returns {Promise<void>} When this completes the API key will now be up to date - the quota period may have |
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* also been reset after this call. |
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*/ |
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exports.update = async (apiKey, property, usage) => { |
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// don't try validate in builder
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if (!environment.CLOUD) { |
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return |
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} |
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try { |
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await apiKeyTable.update(buildUpdateParams(apiKey, property, usage)) |
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} catch (err) { |
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if (err.code !== "ConditionalCheckFailedException") { |
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// get the API key so we can check it
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let apiKey = await apiKeyTable.get({ primary: apiKey }) |
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// we have infact breached the reset period
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if (apiKey && apiKey.quotaReset >= Date.now()) { |
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// update the quota reset period and reset the values for all properties
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apiKey.quotaReset = Date.now() + QUOTA_RESET |
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for (let prop of Object.keys(apiKey.usageQuota)) { |
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if (prop === property) { |
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apiKey.usageQuota[prop] = usage > 0 ? usage : 0 |
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} else { |
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apiKey.usageQuota[prop] = 0 |
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} |
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} |
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await apiKeyTable.put({ item: apiKey }) |
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} |
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throw "Resource limits have been reached" |
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} |
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} |
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} |
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