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Replace CORS proxy with complete server-side cache

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- Replace cors/ directory and cors.mjs utility with comprehensive
    HTTP caching proxy in proxy/ directory
- Implement RFC-compliant caching with cache-control headers,
    conditional requests, and in-flight deduplication
- Centralized error handling with "safe" fetch utilities
- Add unified proxy handlers for weather.gov, SPC, radar, and mesonet APIs
- Include cache management endpoint and extensive diagnostic logging
- Migrate client-side URL rewriting from cors.mjs to url-rewrite.mjs
This commit is contained in:
Eddy G
2025-06-24 20:45:43 -04:00
parent ef0b60a0b8
commit 7a07c67e84
7 changed files with 860 additions and 66 deletions
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41
server/scripts/modules/utils/url-rewrite.mjs Normal file
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// rewrite URLs to use local proxy server
const rewriteUrl = (_url) => {
// Handle relative URLs - return them as-is since they don't need rewriting
if (typeof _url === 'string' && !_url.startsWith('http')) {
return _url;
}
// Handle both string URLs and URL objects
const url = typeof _url === 'string' ? new URL(_url) : new URL(_url.toString());
// Rewrite the origin to use local proxy server
if (url.origin === 'https://api.weather.gov') {
url.protocol = window.location.protocol;
url.host = window.location.host;
url.pathname = `/api${url.pathname}`;
} else if (url.origin === 'https://www.spc.noaa.gov') {
url.protocol = window.location.protocol;
url.host = window.location.host;
url.pathname = `/spc${url.pathname}`;
} else if (url.origin === 'https://radar.weather.gov') {
url.protocol = window.location.protocol;
url.host = window.location.host;
url.pathname = `/radar${url.pathname}`;
} else if (url.origin === 'https://mesonet.agron.iastate.edu') {
url.protocol = window.location.protocol;
url.host = window.location.host;
url.pathname = `/mesonet${url.pathname}`;
} else if (typeof OVERRIDES !== 'undefined' && OVERRIDES?.RADAR_HOST && url.origin === `https://${OVERRIDES.RADAR_HOST}`) {
// Handle override radar host
url.protocol = window.location.protocol;
url.host = window.location.host;
url.pathname = `/mesonet${url.pathname}`;
}
return url;
};
export {
// eslint-disable-next-line import/prefer-default-export
rewriteUrl,
};