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2025-06-13 22:48:00 +09:00
parent 33c166fa0c
commit 95cee69482
25 changed files with 2852 additions and 69 deletions

93
workers/ollama-proxy.js Normal file
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// Cloudflare Worker for secure Ollama proxy
export default {
async fetch(request, env, ctx) {
// CORS preflight
if (request.method === 'OPTIONS') {
return new Response(null, {
headers: {
'Access-Control-Allow-Origin': 'https://log.syui.ai',
'Access-Control-Allow-Methods': 'POST, OPTIONS',
'Access-Control-Allow-Headers': 'Content-Type, X-User-Token',
'Access-Control-Max-Age': '86400',
}
});
}
// Verify origin
const origin = request.headers.get('Origin');
const referer = request.headers.get('Referer');
// 許可されたオリジンのみ
const allowedOrigins = [
'https://log.syui.ai',
'https://log.pages.dev' // Cloudflare Pages preview
];
if (!origin || !allowedOrigins.some(allowed => origin.startsWith(allowed))) {
return new Response('Forbidden', { status: 403 });
}
// ユーザー認証トークン検証(オプション)
const userToken = request.headers.get('X-User-Token');
if (env.REQUIRE_AUTH && !userToken) {
return new Response('Unauthorized', { status: 401 });
}
// リクエストボディを取得
const body = await request.json();
// プロンプトサイズ制限
if (body.prompt && body.prompt.length > 1000) {
return new Response(JSON.stringify({
error: 'Prompt too long. Maximum 1000 characters.'
}), {
status: 400,
headers: { 'Content-Type': 'application/json' }
});
}
// レート制限CF Workers KV使用
if (env.RATE_LIMITER) {
const clientIP = request.headers.get('CF-Connecting-IP');
const rateLimitKey = `rate:${clientIP}`;
const currentCount = await env.RATE_LIMITER.get(rateLimitKey) || 0;
if (currentCount >= 20) {
return new Response(JSON.stringify({
error: 'Rate limit exceeded. Try again later.'
}), {
status: 429,
headers: { 'Content-Type': 'application/json' }
});
}
// カウント増加1時間TTL
await env.RATE_LIMITER.put(rateLimitKey, currentCount + 1, {
expirationTtl: 3600
});
}
// Ollamaへプロキシ
const ollamaResponse = await fetch(env.OLLAMA_API_URL || 'https://ollama.syui.ai/api/generate', {
method: 'POST',
headers: {
'Content-Type': 'application/json',
// 内部認証ヘッダー(必要に応じて)
'X-Internal-Token': env.OLLAMA_INTERNAL_TOKEN || ''
},
body: JSON.stringify(body)
});
// レスポンスを返す
const responseData = await ollamaResponse.text();
return new Response(responseData, {
status: ollamaResponse.status,
headers: {
'Content-Type': 'application/json',
'Access-Control-Allow-Origin': origin,
'Cache-Control': 'no-store'
}
});
}
};

20
workers/wrangler.toml Normal file
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name = "ollama-proxy"
main = "ollama-proxy.js"
compatibility_date = "2024-01-01"
# 環境変数
[vars]
REQUIRE_AUTH = false
# 本番環境
[env.production.vars]
OLLAMA_API_URL = "https://ollama.syui.ai/api/generate"
REQUIRE_AUTH = true
# KVネームスペースレート制限用
[[kv_namespaces]]
binding = "RATE_LIMITER"
id = "your-kv-namespace-id"
# シークレットwrangler secret putで設定
# OLLAMA_INTERNAL_TOKEN = "your-internal-token"