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null : body, {\n status,\n headers: {\n \"content-type\": \"application/json; charset=utf-8\",\n \"cache-control\": \"no-store\",\n \"x-content-type-options\": \"nosniff\",\n ...headers,\n },\n });\n}\n\nfunction validState(value: unknown): value is {\n schemaVersion: number;\n updatedAt?: string;\n lifecycle: Record;\n} {\n if (!value || typeof value !== \"object\" || Array.isArray(value)) return false;\n const state = value as Record;\n if (state.schemaVersion !== 2 || !state.lifecycle || typeof state.lifecycle !== \"object\" || Array.isArray(state.lifecycle)) return false;\n const entries = Object.entries(state.lifecycle as Record);\n if (entries.length > MAX_SYMBOLS) return false;\n for (const [symbol, raw] of entries) {\n if (!/^[A-Z0-9]{2,30}USDT$/.test(symbol) || !raw || typeof raw !== \"object\" || Array.isArray(raw)) return false;\n const item = raw as Record;\n if (typeof item.firstSeen !== \"string\" || !Number.isFinite(Date.parse(item.firstSeen))) return false;\n if (typeof item.firstSeenPrice !== \"number\" || !Number.isFinite(item.firstSeenPrice) || item.firstSeenPrice <= 0) return false;\n if (item.lastSeen !== undefined && (typeof item.lastSeen !== \"string\" || !Number.isFinite(Date.parse(item.lastSeen)))) return false;\n }\n return true;\n}\n\nasync function authorized(req: Request): Promise {\n const expected = Deno.env.get(\"RADAR_STATE_TOKEN\") || \"\";\n const header = req.headers.get(\"authorization\") || \"\";\n const provided = header.startsWith(\"Bearer \") ? header.slice(7) : \"\";\n const encoder = new TextEncoder();\n const [left, right] = await Promise.all([\n crypto.subtle.digest(\"SHA-256\", encoder.encode(expected)),\n crypto.subtle.digest(\"SHA-256\", encoder.encode(provided)),\n ]);\n const a = new Uint8Array(left);\n const b = new Uint8Array(right);\n let difference = expected.length === 0 ? 1 : 0;\n for (let index = 0; index < a.length; index += 1) difference |= a[index] ^ b[index];\n return difference === 0;\n}\n\nexport default async function (req: Request): Promise {\n const url = new URL(req.url);\n const allow = \"GET, HEAD, PUT, OPTIONS\";\n if (url.pathname !== \"/state\") return response(req, 404, { error: \"NOT_FOUND\" });\n if (req.method === \"OPTIONS\") return new Response(null, { status: 204, headers: { Allow: allow, \"cache-control\": \"no-store\" } });\n if (![\"GET\", \"HEAD\", \"PUT\"].includes(req.method)) return response(req, 405, { error: \"METHOD_NOT_ALLOWED\" }, { Allow: allow });\n if (!(await authorized(req))) return response(req, 401, { error: \"UNAUTHORIZED\" }, { \"www-authenticate\": \"Bearer\" });\n if (req.method === \"GET\" || req.method === \"HEAD\") {\n const state = (await blob.getJSON(KEY)) ?? { schemaVersion: 2, revision: 0, updatedAt: null, lifecycle: {} };\n return response(req, 200, state);\n }\n if (!(req.headers.get(\"content-type\") || \"\").toLowerCase().startsWith(\"application/json\")) {\n return response(req, 415, { error: \"CONTENT_TYPE_REQUIRED\" });\n }\n const declared = Number(req.headers.get(\"content-length\") || 0);\n if (declared > MAX_BYTES) return response(req, 413, { error: \"STATE_TOO_LARGE\" });\n const text = await req.text();\n if (new TextEncoder().encode(text).byteLength > MAX_BYTES) return response(req, 413, { error: \"STATE_TOO_LARGE\" });\n let incoming: unknown;\n try { incoming = JSON.parse(text); }\n catch { return response(req, 400, { error: \"INVALID_JSON\" }); }\n if (!validState(incoming)) return response(req, 422, { error: \"INVALID_STATE\" });\n const current = (await blob.getJSON(KEY)) as Record | undefined;\n const revision = Number(current?.revision || 0) + 1;\n const stored = { ...(incoming as Record), revision, updatedAt: new Date().toISOString() };\n await blob.setJSON(KEY, stored);\n return response(req, 200, { ok: true, revision, updatedAt: stored.updatedAt });\n}\n","import { blob } from \"https://esm.town/v/std/blob/main.ts\";\n\nconst KEY = \"node-state-v2.json\";\nconst MAX_BYTES = 100_000;\nconst MAX_SYMBOLS = 1_000;\n\nfunction response(req: Request, status: number, payload: unknown, headers: Record = {}) {\n const body = JSON.stringify(payload);\n return new Response(req.method === \"HEAD\" ? null : body, {\n status,\n headers: {\n \"content-type\": \"application/json; charset=utf-8\",\n \"cache-control\": \"no-store\",\n \"x-content-type-options\": \"nosniff\",\n ...headers,\n },\n });\n}\n\nfunction validState(value: unknown): value is {\n schemaVersion: number;\n updatedAt?: string;\n lifecycle: Record;\n} {\n if (!value || typeof value !== \"object\" || Array.isArray(value)) return false;\n const state = value as Record;\n if (state.schemaVersion !== 2 || !state.lifecycle || typeof state.lifecycle !== \"object\" || Array.isArray(state.lifecycle)) return false;\n const entries = Object.entries(state.lifecycle as Record);\n if (entries.length > MAX_SYMBOLS) return false;\n for (const [symbol, raw] of entries) {\n if (!/^[A-Z0-9]{2,30}USDT$/.test(symbol) || !raw || typeof raw !== \"object\" || Array.isArray(raw)) return false;\n const item = raw as Record;\n if (typeof item.firstSeen !== \"string\" || !Number.isFinite(Date.parse(item.firstSeen))) return false;\n if (typeof item.firstSeenPrice !== \"number\" || !Number.isFinite(item.firstSeenPrice) || item.firstSeenPrice <= 0) return false;\n if (item.lastSeen !== undefined && (typeof item.lastSeen !== \"string\" || !Number.isFinite(Date.parse(item.lastSeen)))) return false;\n }\n return true;\n}\n\nasync function authorized(req: Request): Promise {\n const expected = Deno.env.get(\"RADAR_STATE_TOKEN_V2\") || \"\";\n const header = req.headers.get(\"authorization\") || \"\";\n const provided = header.startsWith(\"Bearer \") ? header.slice(7) : \"\";\n const encoder = new TextEncoder();\n const [left, right] = await Promise.all([\n crypto.subtle.digest(\"SHA-256\", encoder.encode(expected)),\n crypto.subtle.digest(\"SHA-256\", encoder.encode(provided)),\n ]);\n const a = new Uint8Array(left);\n const b = new Uint8Array(right);\n let difference = expected.length === 0 ? 1 : 0;\n for (let index = 0; index < a.length; index += 1) difference |= a[index] ^ b[index];\n return difference === 0;\n}\n\nexport default async function (req: Request): Promise {\n const url = new URL(req.url);\n const allow = \"GET, HEAD, PUT, OPTIONS\";\n if (url.pathname !== \"/state\") return response(req, 404, { error: \"NOT_FOUND\" });\n if (req.method === \"OPTIONS\") return new Response(null, { status: 204, headers: { Allow: allow, \"cache-control\": \"no-store\" } });\n if (![\"GET\", \"HEAD\", \"PUT\"].includes(req.method)) return response(req, 405, { error: \"METHOD_NOT_ALLOWED\" }, { Allow: allow });\n if (!(await authorized(req))) return response(req, 401, { error: \"UNAUTHORIZED\" }, { \"www-authenticate\": \"Bearer\" });\n if (req.method === \"GET\" || req.method === \"HEAD\") {\n const state = (await blob.getJSON(KEY)) ?? { schemaVersion: 2, revision: 0, updatedAt: null, lifecycle: {} };\n return response(req, 200, state);\n }\n if (!(req.headers.get(\"content-type\") || \"\").toLowerCase().startsWith(\"application/json\")) {\n return response(req, 415, { error: \"CONTENT_TYPE_REQUIRED\" });\n }\n const declared = Number(req.headers.get(\"content-length\") || 0);\n if (declared > MAX_BYTES) return response(req, 413, { error: \"STATE_TOO_LARGE\" });\n const text = await req.text();\n if (new TextEncoder().encode(text).byteLength > MAX_BYTES) return response(req, 413, { error: \"STATE_TOO_LARGE\" });\n let incoming: unknown;\n try { incoming = JSON.parse(text); }\n catch { return response(req, 400, { error: \"INVALID_JSON\" }); }\n if (!validState(incoming)) return response(req, 422, { error: \"INVALID_STATE\" });\n const current = (await blob.getJSON(KEY)) as Record | undefined;\n const revision = Number(current?.revision || 0) + 1;\n const stored = { ...(incoming as Record), revision, updatedAt: new Date().toISOString() };\n await blob.setJSON(KEY, stored);\n return response(req, 200, { ok: true, revision, updatedAt: stored.updatedAt });\n}\n","createdAt",["D",1787641080169],"branchVersion","branchId","394f62b7-371f-4cb2-bc10-fc122510c58b","id","77a1edad-2b8d-4698-89dd-8e7cf8de4d7e","crypto-radar-state",["D",1787637256982],"deletedAt","legacyEnvVars","privacy","public","httpPrivacy","description","Persistent state for crypto radar","imageUrl","ca9c5969-d2d6-409f-a9d8-f2ac1832a2bb","pinnedFileId","pinPreview",true,"pinMigrated","screenshotVersion","likeCount",0,"orgId","01a0300b-b4a4-7719-9801-d3db2883fcca","tursoName","tursoHostname","tursoMeasuredAt","pinned","userPerm","r","valPerm","blobPerm","rw","emailPerm","sqlitePerm","projectPerm","telemetryPerm","user",{"_95":94,"_103":99},"org",{"_95":94,"_96":97,"_98":99,"_18":55,"_100":101,"_102":25},"branch",{"_13":14,"_32":85,"_43":42,"_86":44,"_87":-5,"_88":-5,"_89":-5,"_90":-5,"_91":-5,"_92":45,"_93":94},"isOwned","main","projectId","forkedBranchId","forkedBranchVersion","forkedProjectPrivacy","forkedProjectId","forkedProjectOrgId","projectName","userHandle","ericmller","handle","displayName","Eric Müller","avatar","https://lh3.googleusercontent.com/a/ACg8ocI1PZC2VDTkYbxcPEYqtRMNHUOsc4NQYVI5LprQjEJLXuAh=s96-c","tier","free","canRestrictVals","profileImageUrl","branchName","","adoptOrgId",{"_43":44,"_32":45,"_38":162,"_47":-5,"_48":25,"_49":50,"_51":50,"_52":53,"_54":-5,"_18":55,"_56":31,"_57":58,"_59":-5,"_60":-5,"_61":62,"_63":64,"_65":-5,"_66":-5,"_67":-5,"_68":-5,"_69":70,"_71":70,"_72":73,"_74":73,"_75":73,"_76":70,"_77":70,"_78":163,"_80":164,"_82":165,"_84":25},"tree",[153,154],"files",[153,154],"counts",{"_142":62,"_143":138,"_144":62,"_145":146,"_147":148},"contents",[126,127],"upstreamProject","upstreamBranch","emptyEnvVars","flags",[],"hasHttpFiles","grants","orgs","customDomains",{},{"_43":135,"_32":136,"_30":137,"_129":-5,"_41":42,"_40":138,"_130":58,"_38":139,"_13":62,"_33":20,"_35":140,"_24":25,"_133":-5,"_27":141},{"_43":128,"_32":28,"_30":31,"_129":-5,"_41":42,"_40":14,"_130":58,"_38":131,"_13":132,"_33":34,"_35":37,"_24":25,"_133":-5,"_27":134},"6b5fcf3e-9170-4ec1-a31d-71e9a07f41d5","parentId","latest",["D",1787641080169],3,"label",[28],"e6264e28-c747-4e04-b0b5-d21cfc18ae5f","main.ts","687c09da-a049-11f1-9945-1607ee4eb77e",1,["D",1787637257109],"// Storage-only project for crypto radar state. 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Diff · v5