490 lines
19 KiB
TypeScript
490 lines
19 KiB
TypeScript
import { browser } from '$app/environment';
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import { ae_auth_error } from '$lib/stores/ae_stores';
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import type { key_val } from '$lib/stores/ae_stores';
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export let temp_get_blob_percent_completed = 0;
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export const get_blob_percent_completed = temp_get_blob_percent_completed;
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export const temp_get_object_percent_completed = 0;
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export const get_object_percent_completed = temp_get_object_percent_completed;
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export const get_object = async function get_object({
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api_cfg = null,
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endpoint = '',
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headers = {},
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params = {},
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data = {},
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timeout = 20000,
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return_meta = false,
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return_blob = false,
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filename = '',
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auto_download = false,
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as_list = false, // Is this still really needed?
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// The task_id value should be a random string that is unique to the task. This is used to identify the task in the message event.
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task_id = crypto.randomUUID(),
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log_lvl = 0,
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retry_count = 5 // Number of retry attempts
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}: {
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api_cfg: any;
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endpoint: string;
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headers?: any;
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params?: any;
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data?: any;
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timeout?: number;
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return_meta?: boolean;
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return_blob?: boolean;
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filename?: null | string;
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auto_download?: boolean;
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as_list?: boolean;
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task_id?: string;
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log_lvl?: number;
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retry_count?: number;
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}) {
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if (log_lvl) {
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console.log(
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`*** get_object() *** Endpoint: ${endpoint} AE Task ID: ${task_id}`
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);
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console.log('Params:', params);
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if (log_lvl > 1) {
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console.log('Data:', data);
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}
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}
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if (!api_cfg) {
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console.log('No API Config was provided. Returning false.');
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return false;
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}
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// FAIL FAST: Check if we are explicitly offline to avoid long browser timeouts
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if (typeof navigator !== 'undefined' && !navigator.onLine) {
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if (log_lvl)
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console.log(
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'get_object: Browser is offline. Failing fast to allow cache fallback.'
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);
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return false;
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}
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if (!filename && params.filename) {
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filename = params.filename;
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}
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const url = new URL(endpoint, api_cfg['base_url']);
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Object.keys(params).forEach((key) =>
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url.searchParams.append(key, params[key])
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);
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// Clean and merge headers without mutating the original api_cfg
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const headers_cleaned: key_val = {};
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const merged_headers = { ...api_cfg['headers'], ...headers };
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// Auto-promote account_id from api_cfg to header if missing
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let account_id = merged_headers['x-account-id'] || api_cfg['account_id'];
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// IMMEDIATE ACCOUNT ID SCAVENGING: Read from localStorage to avoid race conditions
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if (!account_id && typeof localStorage !== 'undefined') {
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try {
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const ae_loc_raw = localStorage.getItem('ae_loc');
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if (ae_loc_raw) {
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const ae_loc_json = JSON.parse(ae_loc_raw);
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if (ae_loc_json.account_id) {
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account_id = ae_loc_json.account_id;
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}
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}
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} catch (e) {
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// Silently fail on storage read
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}
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}
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if (account_id) {
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merged_headers['x-account-id'] = account_id;
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}
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// Handle "Bootstrap Paradox" for unauthenticated requests
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const bypass_val =
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merged_headers['x-no-account-id'] || merged_headers['x_no_account_id'];
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const is_valid_bypass =
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bypass_val === 'bypass' ||
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bypass_val === 'Nothing to See Here' ||
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bypass_val === 'direct-download';
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if (is_valid_bypass) {
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if (log_lvl > 1)
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console.log(
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'api_get_object: Valid bypass detected. Stripping account ID context.'
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);
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delete merged_headers['x-account-id'];
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delete merged_headers['x_account_id'];
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} else {
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// If it's a placeholder (like "No_Account_ID_Here"), just remove the bypass header
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// but DO NOT strip the valid Account ID.
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delete merged_headers['x-no-account-id'];
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delete merged_headers['x_no_account_id'];
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}
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// Standardize all headers to kebab-case and ensure string values
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for (const prop in merged_headers) {
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const prop_cleaned = prop.replaceAll('_', '-');
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let value = merged_headers[prop];
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if (value === null || value === undefined) continue;
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if (typeof value !== 'string') {
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value = JSON.stringify(value);
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}
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headers_cleaned[prop_cleaned] = value;
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}
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// Auto-inject Authorization header if JWT is present but header is missing
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let jwt =
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headers_cleaned['jwt'] ||
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headers_cleaned['JWT'] ||
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api_cfg['jwt'] ||
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api_cfg['headers']?.['jwt'] ||
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api_cfg['headers']?.['JWT'];
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// Final Fallback: Direct check of primary ae_loc key
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if (!jwt && typeof localStorage !== 'undefined') {
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try {
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const raw = localStorage.getItem('ae_loc');
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if (raw) {
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const json = JSON.parse(raw);
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if (json.jwt) jwt = json.jwt;
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}
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} catch (e) {
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// Silently fail on storage read
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}
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}
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if (
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jwt &&
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!headers_cleaned['Authorization'] &&
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!headers_cleaned['authorization']
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) {
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headers_cleaned['Authorization'] = `Bearer ${jwt}`;
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}
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if (log_lvl > 1) {
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console.log('Final cleaned headers:', headers_cleaned);
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}
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// signal is injected per-attempt inside the retry loop so each retry gets
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// a fresh AbortController with its own independent timeout.
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const fetchOptions: RequestInit = {
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method: 'GET',
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headers: headers_cleaned,
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// Be explicit about CORS behavior and redirect handling to avoid
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// environment-dependent defaults that can cause opaque failures.
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mode: 'cors',
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credentials: 'omit',
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redirect: 'follow',
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cache: 'no-store'
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};
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if (log_lvl > 1) {
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console.log('Fetch options:', fetchOptions);
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}
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let fetch_method: any = fetch;
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if (api_cfg.fetch) {
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if (log_lvl > 1) {
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console.log('Using custom fetch function from api_cfg!!!');
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}
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fetch_method = api_cfg.fetch;
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}
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for (let attempt = 1; attempt <= retry_count; attempt++) {
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// FAIL FAST: Check if we are explicitly offline to avoid long browser timeouts
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if (typeof navigator !== 'undefined' && !navigator.onLine) {
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if (log_lvl)
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console.log(
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`get_object: Browser is offline (attempt ${attempt}). Failing fast to allow cache fallback.`
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);
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return false;
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}
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// Fresh AbortController per attempt — ensures each retry has its own
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// independent timeout. Sharing a single controller across retries leaves
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// retries unprotected once the first attempt's clearTimeout() runs.
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const controller = new AbortController();
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// Track whether THIS helper's timeout fired. AbortError alone is ambiguous:
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// it can mean timeout OR intentional caller abort (navigation/unmount).
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// We only retry timeout-aborts; intentional aborts should fail fast.
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let did_timeout_abort = false;
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const timeoutId = setTimeout(() => {
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did_timeout_abort = true;
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console.warn(`API GET: Request timed out after ${timeout}ms (attempt ${attempt}/${retry_count}).`);
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controller.abort();
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}, timeout);
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try {
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const response = await fetch_method(
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url.toString(),
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{ ...fetchOptions, signal: controller.signal }
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).catch(function (error: any) {
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// SILENCE NOISE: Aborted requests (common in SWR/Background loads) shouldn't spam logs
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if (
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error.name === 'AbortError' ||
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error.message?.includes('aborted') ||
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error.name === 'TypeError'
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) {
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if (log_lvl > 1) {
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console.log(
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'API GET: Request was aborted or terminated by browser. This is expected during navigation.',
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error
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);
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}
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return error; // Return error to be handled below
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}
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console.log(
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'API GET Object *fetch* request failed in an unexpected way.',
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error
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);
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return error;
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});
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clearTimeout(timeoutId);
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// Check if we should stop due to abort or network failure.
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if (
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response instanceof Error ||
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(response &&
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(response.name === 'TypeError' ||
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response.name === 'AbortError'))
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) {
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// AbortError can be either timeout or intentional abort.
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// Retry only helper-owned timeout aborts; fail fast on caller abort.
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if (response.name === 'AbortError') {
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if (did_timeout_abort) {
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throw new Error(
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`Timeout abort (attempt ${attempt}/${retry_count}) after ${timeout}ms`
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);
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}
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return false;
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}
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// TypeError = transient network failure (ERR_NETWORK_CHANGED,
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// ERR_NETWORK_IO_SUSPENDED, hotel/conference WiFi blip, etc.).
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// IMPORTANT: throw here so the retry loop's catch block handles it with
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// backoff. Returning false would bypass retries entirely.
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//
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// WHY THIS WAS BROKEN: The Jan 2026 "offline-first fast-paths" commit
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// (a10accfaa) changed .catch() to return the error as a value instead of
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// not returning (undefined). The undefined path fell through to the
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// `if (!response)` throw which DID retry. The explicit `return error` +
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// this `return false` block silently killed the retry for the most common
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// failure mode on conference/hotel WiFi.
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throw new Error(`Network error (attempt ${attempt}): ${response.message}`);
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}
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if (!response) {
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if (log_lvl > 1) {
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console.log(
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'API GET Object: Something went wrong with *fetch* request. Returning false? Throwing an error!'
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);
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}
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throw new Error(
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`HTTP fetch request was aborted or failed in an unexpected way! URL = ${url.toString()}`
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); // This will allow it to retry
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// return false; // This will stop the retries
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}
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if (log_lvl) {
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console.log(
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`Response: status=${response.status} statusText=${response.statusText} url=${response.url} attempt=${attempt}`
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);
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try {
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console.log(
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'Response headers:',
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Object.fromEntries(response.headers.entries())
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);
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} catch (e) {
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/* ignore header read errors */
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}
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}
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if (log_lvl > 1) {
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console.log('Response:', response);
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}
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if (!response.ok) {
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if (response.status === 404) {
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if (log_lvl) {
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console.log(
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'The response was a 404 not found "error". Returning null.'
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);
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}
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return null;
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}
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// FAIL FAST (Section 2D): Do not retry on Auth or Client errors (400, 401, 403, 422)
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if (
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response.status === 400 ||
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response.status === 401 ||
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response.status === 403 ||
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response.status === 422
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) {
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if (log_lvl)
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console.error(
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`API Client Failure (${response.status}). Failing fast.`
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);
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if (response.status === 401 || response.status === 403) {
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console.warn(
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`AUTH DIAGNOSTICS: Headers sent for ${endpoint}:`,
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{
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has_auth: !!headers_cleaned['Authorization'],
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has_api_key:
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!!headers_cleaned['x-aether-api-key'],
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has_account_id:
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!!headers_cleaned['x-account-id'],
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jwt_preview: jwt
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? `${jwt.slice(0, 8)}...`
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: 'MISSING'
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}
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);
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// Signal the root layout to show the session-expired banner.
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if (browser)
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ae_auth_error.set({
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type: 'expired',
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ts: Date.now()
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});
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}
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// Structured Error Handling (V3): Attempt to get rich error metadata
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let error_json: any = null;
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try {
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error_json = await response.json();
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} catch (e) {
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// Not JSON
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}
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if (log_lvl)
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console.log(
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'The response was not ok. Structured Error Check:',
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error_json
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);
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if (error_json?.meta?.details) {
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return error_json;
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}
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// Fallback for standard FastAPI "detail" errors
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if (error_json?.detail) {
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return {
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meta: {
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success: false,
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status_code: response.status,
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details: {
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category: 'validation',
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message:
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typeof error_json.detail === 'string'
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? error_json.detail
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: JSON.stringify(error_json.detail),
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raw: error_json.detail
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}
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}
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};
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}
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return false;
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}
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throw new Error(`HTTP error! status: ${response.status}`);
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}
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if (!return_blob) {
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const json = await response.json();
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if (log_lvl > 1) {
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console.log('Response JSON:', json);
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}
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if (!Array.isArray(json.data) && as_list) {
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return [json.data];
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}
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return json.data || json;
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} else {
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const reader = response.body?.getReader();
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const contentLength = +response.headers.get('Content-Length')!;
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let receivedLength = 0;
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const chunks = [];
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while (true) {
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const { done, value } = await reader!.read();
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if (done) break;
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chunks.push(value);
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receivedLength += value.length;
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const percent_completed = Math.round(
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(receivedLength * 100) / contentLength
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);
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if (log_lvl > 1) {
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console.log(
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'GET Blob Progress:',
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percent_completed,
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'Total:',
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contentLength,
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'Loaded:',
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receivedLength,
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'Percent Completed',
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percent_completed
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);
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}
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temp_get_blob_percent_completed = percent_completed;
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try {
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if (typeof window !== 'undefined') {
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window.postMessage(
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{
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type: 'api_download_blob',
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status: 'downloading',
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task_id: task_id,
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endpoint: endpoint,
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filename: filename,
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size_total: contentLength,
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size_loaded: receivedLength,
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percent_completed: percent_completed
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},
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'*'
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);
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}
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} catch (e) {
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console.error('Error posting message:', e);
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}
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}
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const blob = new Blob(chunks);
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if (auto_download) {
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const downloadUrl = window.URL.createObjectURL(blob);
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const link = document.createElement('a');
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link.href = downloadUrl;
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link.setAttribute('download', filename || 'download');
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document.body.appendChild(link);
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link.click();
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link.remove();
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return true;
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} else {
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return blob;
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}
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}
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} catch (error) {
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// Ensure the per-attempt timeout timer is always cancelled on failure.
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clearTimeout(timeoutId);
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console.log(
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`API GET object request *fetch* error on attempt ${attempt}:`,
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error
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);
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if (attempt === retry_count) {
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console.log('Max retry attempts reached. Returning false.');
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return false;
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}
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// Backoff before retrying. Without a delay, rapid retries on a flaky
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// connection accomplish nothing and add noise. Caps at 8s so later
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// attempts don't wait excessively. Gives the network time to recover
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// (ERR_NETWORK_CHANGED is typically a sub-second WiFi roam event).
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const delay_ms = Math.min(2000 * attempt, 8000);
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console.log(`API GET: Retrying in ${delay_ms}ms... (attempt ${attempt}/${retry_count})`);
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await new Promise<void>((resolve) => setTimeout(resolve, delay_ms));
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}
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}
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};
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