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mod.ts
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import { JobService, ResourceService, VariableService } from './windmill-api/index.ts'
import { OpenAPI } from './windmill-api/index.ts'
export {
AdminService, AuditService, FlowService, GranularAclService, GroupService,
JobService, ResourceService, VariableService, ScriptService, ScheduleService, SettingsService,
UserService, WorkspaceService
} from './windmill-api/index.ts'
export { pgSql, pgClient } from './pg.ts'
export { mySql, mysqlClient } from './mysql.ts'
export type Sql = string
export type Email = string
export type Base64 = string
export type Resource<S extends string> = any
export const SHARED_FOLDER = '/shared'
export function setClient(token: string, baseUrl: string) {
OpenAPI.WITH_CREDENTIALS = true
OpenAPI.TOKEN = token
OpenAPI.BASE = baseUrl + '/api'
}
setClient(Deno.env.get("WM_TOKEN") ?? 'no_token', Deno.env.get("BASE_INTERNAL_URL") ?? Deno.env.get("BASE_URL") ?? 'http://localhost:8000')
/**
* Create a client configuration from env variables
* @returns client configuration
*/
export function getWorkspace(): string {
return Deno.env.get("WM_WORKSPACE") ?? 'no_workspace'
}
/**
* Get a resource value by path
* @param path path of the resource, default to internal state path
* @param undefinedIfEmpty if the resource does not exist, return undefined instead of throwing an error
* @returns resource value
*/
export async function getResource(path?: string, undefinedIfEmpty?: boolean): Promise<any> {
const workspace = getWorkspace()
path = path ?? getStatePath()
try {
const resource = await ResourceService.getResource({ workspace, path })
return await _transformLeaf(resource.value)
} catch (e: any) {
if (undefinedIfEmpty && e.status === 404) {
return undefined
} else {
throw Error(`Resource not found at ${path} or not visible to you`)
}
}
}
export function getStatePath(): string {
const state_path = Deno.env.get("WM_STATE_PATH")
if (state_path === undefined) {
throw Error("State path not set")
}
return state_path
}
/**
* Set a resource value by path
* @param path path of the resource to set, default to state path
* @param value new value of the resource to set
* @param initializeToTypeIfNotExist if the resource does not exist, initialize it with this type
*/
export async function setResource(value: any, path?: string, initializeToTypeIfNotExist?: string): Promise<void> {
path = path ?? getStatePath()
const workspace = getWorkspace()
if (await ResourceService.existsResource({ workspace, path })) {
await ResourceService.updateResourceValue({ workspace, path, requestBody: { value } })
} else if (initializeToTypeIfNotExist) {
await ResourceService.createResource({ workspace, requestBody: { path, value, resource_type: initializeToTypeIfNotExist } })
} else {
throw Error(`Resource at path ${path} does not exist and no type was provided to initialize it`)
}
}
/**
* Set the state
* @param state state to set
* @deprecated use setState instead
*/
export async function setInternalState(state: any): Promise<void> {
await setResource(state, undefined, 'state')
}
/**
* Set the state
* @param state state to set
*/
export async function setState(state: any): Promise<void> {
await setResource(state, undefined, 'state')
}
/**
* Set the shared state
* @param state state to set
*/
export async function setSharedState(state: any, path = 'state.json'): Promise<void> {
await Deno.writeTextFile(SHARED_FOLDER + '/' + path, JSON.stringify(state))
}
/**
* Get the shared state
* @param state state to set
*/
export async function getSharedState(path = 'state.json'): Promise<any> {
return JSON.parse(await Deno.readTextFile(SHARED_FOLDER + '/' + path))
}
/**
* Get the internal state
* @deprecated use getState instead
*/
export async function getInternalState(): Promise<any> {
return await getResource(getStatePath(), true)
}
/**
* Get the state shared across executions
*/
export async function getState(): Promise<any> {
return await getResource(getStatePath(), true)
}
/**
* Get a variable by path
* @param path path of the variable
* @returns variable value
*/
export async function getVariable(path: string): Promise<string | undefined> {
const workspace = getWorkspace()
try {
const variable = await VariableService.getVariable({ workspace, path })
return variable.value
} catch (e: any) {
throw Error(`Variable not found at ${path} or not visible to you`)
}
}
async function transformLeaves(d: { [key: string]: any }): Promise<{ [key: string]: any }> {
for (const k in d) {
d[k] = await _transformLeaf(d[k])
}
return d
}
const VAR_RESOURCE_PREFIX = "$var:"
async function _transformLeaf(v: any): Promise<any> {
if (typeof v === 'object') {
return transformLeaves(v)
}
else if (typeof v === 'string' && v.startsWith(VAR_RESOURCE_PREFIX)) {
const varName = v.substring(VAR_RESOURCE_PREFIX.length)
return await getVariable(varName)
} else {
return v
}
}
export async function databaseUrlFromResource(path: string): Promise<string> {
const resource = await getResource(path)
return `postgresql://${resource.user}:${resource.password}@${resource.host}:${resource.port}/${resource.dbname}?sslmode=${resource.sslmode}`
}
/**
* Get URLs needed for resuming a flow after this step
* @param approver approver name
* @returns approval page UI URL, resume and cancel API URLs for resumeing the flow
*/
export async function getResumeUrls(approver?: string): Promise<{
approvalPage: string;
resume: string;
cancel: string;
}> {
const nonce = Math.floor(Math.random() * 4294967295);
const workspace = getWorkspace()
return await JobService.getResumeUrls({ workspace, resumeId: nonce, approver, id: Deno.env.get("WM_JOB_ID") ?? 'NO_JOB_ID' })
}
/**
* @deprecated use getResumeUrls instead
*/
export function getResumeEndpoints(approver?: string): Promise<{
approvalPage: string;
resume: string;
cancel: string;
}> {
return getResumeUrls(approver)
}
export function base64ToUint8Array(data: string): Uint8Array {
return Uint8Array.from(atob(data), c => c.charCodeAt(0))
}
export function uint8ArrayToBase64(arrayBuffer: Uint8Array): string {
let base64 = ''
const encodings = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
const bytes = new Uint8Array(arrayBuffer)
const byteLength = bytes.byteLength
const byteRemainder = byteLength % 3
const mainLength = byteLength - byteRemainder
let a, b, c, d
let chunk
// Main loop deals with bytes in chunks of 3
for (let i = 0; i < mainLength; i = i + 3) {
// Combine the three bytes into a single integer
chunk = (bytes[i] << 16) | (bytes[i + 1] << 8) | bytes[i + 2]
// Use bitmasks to extract 6-bit segments from the triplet
a = (chunk & 16515072) >> 18 // 16515072 = (2^6 - 1) << 18
b = (chunk & 258048) >> 12 // 258048 = (2^6 - 1) << 12
c = (chunk & 4032) >> 6 // 4032 = (2^6 - 1) << 6
d = chunk & 63 // 63 = 2^6 - 1
// Convert the raw binary segments to the appropriate ASCII encoding
base64 += encodings[a] + encodings[b] + encodings[c] + encodings[d]
}
// Deal with the remaining bytes and padding
if (byteRemainder == 1) {
chunk = bytes[mainLength]
a = (chunk & 252) >> 2 // 252 = (2^6 - 1) << 2
// Set the 4 least significant bits to zero
b = (chunk & 3) << 4 // 3 = 2^2 - 1
base64 += encodings[a] + encodings[b] + '=='
} else if (byteRemainder == 2) {
chunk = (bytes[mainLength] << 8) | bytes[mainLength + 1]
a = (chunk & 64512) >> 10 // 64512 = (2^6 - 1) << 10
b = (chunk & 1008) >> 4 // 1008 = (2^6 - 1) << 4
// Set the 2 least significant bits to zero
c = (chunk & 15) << 2 // 15 = 2^4 - 1
base64 += encodings[a] + encodings[b] + encodings[c] + '='
}
return base64
}