File size: 5,400 Bytes
5f24abe | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 | import type { APIEvent } from "@solidjs/start/server"
import { Resource, waitUntil } from "@opencode-ai/console-resource"
import { LOCALE_HEADER, cookie, localeFromRequest, route, tag } from "~/lib/language"
const dataPath = "/data"
const statsCacheParam = "__opencode_stats_locale"
export async function statsProxy(evt: APIEvent) {
const req = evt.request.clone()
const locale = localeFromRequest(req)
const redirect = redirectToLocalizedData(req, new URL(req.url), locale)
if (redirect) return redirect
const cache = defaultCache(caches)
const cacheKey = statsCacheKey(req, locale)
if (cacheKey) {
const cached = await cache.match(cacheKey)
if (cached) return withStatsCacheStatus(cached, "HIT")
}
const targetUrl = new URL(req.url)
targetUrl.protocol = "https:"
targetUrl.hostname = Resource.App.stage === "production" ? "stats.opencode.ai" : "stats.dev.opencode.ai"
targetUrl.port = ""
if (
targetUrl.pathname.startsWith(`${dataPath}/_build/`) ||
targetUrl.pathname === `${dataPath}/banner.jpg` ||
targetUrl.pathname === `${dataPath}/banner.png` ||
targetUrl.pathname === `${dataPath}/sitemap.xml`
) {
targetUrl.pathname = targetUrl.pathname.slice(dataPath.length)
}
const requestHeaders = new Headers(req.headers)
requestHeaders.set(LOCALE_HEADER, locale)
requestHeaders.set("accept-language", tag(locale))
const response = await fetch(targetUrl, {
method: req.method,
headers: requestHeaders,
body: req.body,
})
if (!response.headers.get("content-type")?.includes("text/html")) return response
const headers = new Headers(response.headers)
headers.delete("content-encoding")
headers.delete("content-length")
headers.delete("etag")
headers.delete("set-cookie")
appendVary(headers, "Accept-Language", "Cookie", LOCALE_HEADER)
const result = new Response(rewriteStatsHtml(await response.text()), {
status: response.status,
statusText: response.statusText,
headers,
})
if (!cacheKey || !response.ok) return result
void waitUntil(cache.put(cacheKey, result.clone()))
return withStatsCacheStatus(result, "MISS")
}
export function statsRedirect(evt: APIEvent) {
const url = new URL(evt.request.url)
url.pathname = `${dataPath}${url.pathname.slice("/stats".length)}`
return new Response(null, {
status: 308,
headers: {
Location: url.toString(),
},
})
}
function rewriteStatsHtml(html: string) {
return html.replaceAll('"/_build/', `"${dataPath}/_build/`).replaceAll("'/_build/", `'${dataPath}/_build/`)
}
function statsCacheKey(request: Request, locale: ReturnType<typeof localeFromRequest>): Request | undefined {
if (request.method !== "GET") return undefined
if (!acceptsHtml(request)) return undefined
if (isDataBypassPath(new URL(request.url).pathname)) return undefined
const url = new URL(request.url)
const additionalModels = url.searchParams.get("add")
url.search = ""
if (additionalModels) url.searchParams.set("add", additionalModels)
url.searchParams.set(statsCacheParam, locale)
return new Request(url)
}
function defaultCache(storage: CacheStorage) {
if (!isCloudflareCacheStorage(storage)) throw new Error("Cloudflare default cache is unavailable")
return storage.default
}
function isCloudflareCacheStorage(storage: CacheStorage): storage is CacheStorage & { default: Cache } {
return "default" in storage
}
function withStatsCacheStatus(response: Response, status: "HIT" | "MISS") {
const headers = new Headers(response.headers)
headers.set("x-opencode-stats-cache", status)
return new Response(response.body, { status: response.status, statusText: response.statusText, headers })
}
function redirectToLocalizedData(request: Request, url: URL, locale: ReturnType<typeof localeFromRequest>) {
if (locale === "en") return null
if (request.headers.get(LOCALE_HEADER)) return null
if (request.method !== "GET" && request.method !== "HEAD") return null
if (!acceptsHtml(request)) return null
if (!url.pathname.startsWith(`${dataPath}/`) && url.pathname !== dataPath) return null
if (isDataBypassPath(url.pathname)) return null
const next = new URL(url)
next.pathname = route(locale, url.pathname)
const headers = new Headers({
Location: next.toString(),
})
headers.append("set-cookie", cookie(locale))
appendVary(headers, "Accept-Language", "Cookie", LOCALE_HEADER)
return new Response(null, {
status: 308,
headers,
})
}
function acceptsHtml(request: Request) {
const accept = request.headers.get("accept")
return !accept || accept.includes("text/html") || accept.includes("*/*")
}
function isDataBypassPath(pathname: string) {
return (
pathname.startsWith(`${dataPath}/_build/`) ||
pathname.startsWith(`${dataPath}/api/`) ||
pathname.startsWith(`${dataPath}/_server`) ||
pathname === `${dataPath}/banner.jpg` ||
pathname === `${dataPath}/banner.png` ||
pathname === `${dataPath}/sitemap.xml`
)
}
function appendVary(headers: Headers, ...values: string[]) {
const existing = headers
.get("vary")
?.split(",")
.map((value) => value.trim())
.filter(Boolean)
headers.set(
"vary",
values
.reduce(
(result, value) =>
result.some((item) => item.toLowerCase() === value.toLowerCase()) ? result : [...result, value],
existing ?? [],
)
.join(", "),
)
}
|