clean up repo and readme
This commit is contained in:
cra88y/pc
+237
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import json, http.client, ssl, os, logging, base64, time, hashlib
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from flask import Response, request, abort
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from searx.plugins import Plugin, PluginInfo
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from searx.result_types import EngineResults
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from flask_babel import gettext
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from markupsafe import Markup
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logger = logging.getLogger(__name__)
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# Constants
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TOKEN_EXPIRY_SEC = 60
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CONNECTION_TIMEOUT_SEC = 30
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class SXNGPlugin(Plugin):
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id = "ai_answers"
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def __init__(self, plg_cfg):
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super().__init__(plg_cfg)
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self.info = PluginInfo(
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id=self.id,
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name=gettext("Gemini Flash Streaming"),
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description=gettext("Live AI search answers using Google Gemini Flash"),
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preference_section="general",
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)
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self.provider = os.getenv('LLM_PROVIDER', 'openrouter').lower()
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self.api_key = os.getenv('OPENROUTER_API_KEY') if self.provider == 'openrouter' else os.getenv('GEMINI_API_KEY')
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self.model = os.getenv('GEMINI_MODEL', 'gemma-3-27b-it') if self.provider == 'gemini' else os.getenv('OPENROUTER_MODEL', 'google/gemma-3-27b-it:free')
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try:
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self.max_tokens = int(os.getenv('GEMINI_MAX_TOKENS', 500))
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except ValueError:
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self.max_tokens = 500
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try:
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self.temperature = float(os.getenv('GEMINI_TEMPERATURE', 0.2))
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except ValueError:
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self.temperature = 0.2
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self.base_url = os.getenv('OPENROUTER_BASE_URL', 'openrouter.ai')
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# Stable secret for multi-worker environments
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if self.api_key:
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self.secret = os.getenv('SXNG_LLM_SECRET') or hashlib.sha256(self.api_key.encode()).hexdigest()
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else:
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self.secret = os.getenv('SXNG_LLM_SECRET', '')
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logger.warning("Gemini Flash plugin: No API key configured, plugin will be inactive")
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def init(self, app):
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@app.route('/gemini-stream', methods=['POST'])
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def g_stream():
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data = request.json or {}
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token = data.get('tk', '')
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q = data.get('q', '')
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try:
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ts, sig = token.split('.', 1)
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query_clean = q.strip()
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expected = hashlib.sha256(f"{ts}{query_clean}{self.secret}".encode()).hexdigest()
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if sig != expected or (time.time() - float(ts)) > TOKEN_EXPIRY_SEC:
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abort(403)
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except (ValueError, KeyError, AttributeError):
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abort(403)
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context_text = data.get('context', '')
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if not self.api_key or not q:
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return Response("Error: Missing Key", status=400)
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prompt = (
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f"SYSTEM: Answer USER QUERY by integrating SEARCH RESULTS with expert knowledge.\n"
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f"HIERARCHY: Use RESULTS for facts/data. Use KNOWLEDGE for context/synthesis.\n"
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f"CONSTRAINTS: <4 sentences | Dense information | Complete thoughts.\n"
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f"FALLBACK: If results are empty, answer from knowledge but note the lack of sources.\n\n"
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f"SEARCH RESULTS:\n{context_text}\n\n"
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f"USER QUERY: {q}\n\n"
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f"ANSWER:"
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)
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def generate_gemini():
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host = "generativelanguage.googleapis.com"
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path = f"/v1/models/{self.model}:streamGenerateContent?key={self.api_key}"
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try:
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conn = http.client.HTTPSConnection(host, timeout=CONNECTION_TIMEOUT_SEC, context=ssl.create_default_context())
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payload = {"contents": [{"parts": [{"text": prompt}]}], "generationConfig": {"maxOutputTokens": self.max_tokens, "temperature": self.temperature}}
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conn.request("POST", path, body=json.dumps(payload), headers={"Content-Type": "application/json"})
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res = conn.getresponse()
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if res.status != 200:
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logger.error(f"Gemini API Error {res.status}: {res.read().decode('utf-8')}")
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return
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decoder = json.JSONDecoder()
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buffer = ""
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while True:
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chunk = res.read(128)
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if not chunk: break
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buffer += chunk.decode('utf-8')
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while buffer:
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buffer = buffer.lstrip()
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if not buffer: break
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try:
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obj, idx = decoder.raw_decode(buffer)
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candidates = obj.get('candidates', [])
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if candidates:
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content = candidates[0].get('content', {})
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parts = content.get('parts', [])
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if parts:
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text = parts[0].get('text', '')
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if text: yield text
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buffer = buffer[idx:]
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except json.JSONDecodeError: break
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conn.close()
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except Exception as e: logger.error(f"Gemini Stream Exception: {e}")
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def generate_openrouter():
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try:
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conn = http.client.HTTPSConnection(self.base_url, timeout=CONNECTION_TIMEOUT_SEC, context=ssl.create_default_context())
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payload = {
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"model": self.model,
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"messages": [{"role": "user", "content": prompt}],
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"stream": True,
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"max_tokens": self.max_tokens,
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"temperature": self.temperature
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}
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headers = {
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"Authorization": f"Bearer {self.api_key}",
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"Content-Type": "application/json",
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"HTTP-Referer": "https://github.com/searxng/searxng",
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"X-Title": "SearXNG LLM Plugin"
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}
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conn.request("POST", "/api/v1/chat/completions", body=json.dumps(payload), headers=headers)
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res = conn.getresponse()
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if res.status != 200:
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logger.error(f"OpenRouter API Error {res.status}: {res.read().decode('utf-8')}")
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return
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decoder = json.JSONDecoder()
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buffer = ""
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while True:
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chunk = res.read(128)
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if not chunk: break
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buffer += chunk.decode('utf-8')
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while "\n" in buffer:
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line, buffer = buffer.split("\n", 1)
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if line.startswith("data: "):
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data_str = line[6:].strip()
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if data_str == "[DONE]": return
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try:
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obj, _ = decoder.raw_decode(data_str)
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content = obj.get("choices", [{}])[0].get("delta", {}).get("content", "")
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if content: yield content
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except json.JSONDecodeError:
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pass
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conn.close()
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except Exception as e: logger.error(f"OpenRouter Stream Exception: {e}")
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generator = generate_openrouter if self.provider == 'openrouter' else generate_gemini
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return Response(generator(), mimetype='text/plain', headers={'X-Accel-Buffering': 'no'})
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return True
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def post_search(self, request, search) -> EngineResults:
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results = EngineResults()
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try:
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if not self.active or not self.api_key or search.search_query.pageno > 1:
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return results
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raw_results = search.result_container.get_ordered_results()
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context_list = [f"[{i+1}] {r.get('title')}: {r.get('content')}" for i, r in enumerate(raw_results[:6])]
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context_str = "\n".join(context_list)
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# Stateless Handshake
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ts = str(int(time.time()))
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q_clean = search.search_query.query.strip()
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sig = hashlib.sha256(f"{ts}{q_clean}{self.secret}".encode()).hexdigest()
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tk = f"{ts}.{sig}"
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b64_context = base64.b64encode(context_str.encode('utf-8')).decode('utf-8')
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js_q = json.dumps(q_clean)
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html_payload = f'''
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<article id="sxng-stream-box" class="answer" style="display:none; margin-bottom: 1rem;">
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<style>
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@keyframes sxng-blink {{ 0%, 100% {{ opacity: 1; }} 50% {{ opacity: 0; }} }}
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.sxng-cursor {{
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display: inline-block; width: 0.5rem; height: 1rem;
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background: var(--color-result-description);
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margin-left: 2px; vertical-align: middle;
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animation: sxng-blink 1s step-end infinite;
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}}
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</style>
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<p id="sxng-stream-data" style="white-space: pre-wrap; color: var(--color-result-description); font-size: 0.95rem;"></p>
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<script>
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(async () => {{
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const q = {js_q};
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const b64 = "{b64_context}";
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const tk = "{tk}";
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const box = document.getElementById('sxng-stream-box');
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const data = document.getElementById('sxng-stream-data');
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try {{
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const ctx = new TextDecoder().decode(Uint8Array.from(atob(b64), c => c.charCodeAt(0)));
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const res = await fetch('/gemini-stream', {{
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method: 'POST',
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headers: {{ 'Content-Type': 'application/json' }},
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body: JSON.stringify({{ q: q, context: ctx, tk: tk }})
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}});
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if (!res.ok) {{ box.remove(); return; }}
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const reader = res.body.getReader();
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const decoder = new TextDecoder();
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const cursor = document.createElement('span');
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cursor.className = 'sxng-cursor';
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let started = false;
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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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const chunk = decoder.decode(value);
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if (chunk) {{
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let text = chunk;
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if (!started) {{
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text = text.replace(/^[\\s.,;:!?]+/, '');
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if (!text) continue;
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data.appendChild(cursor);
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box.style.display = 'block';
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started = true;
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}}
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cursor.before(text);
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}}
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}}
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cursor.remove();
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if (!started) box.remove();
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}} catch (e) {{ console.error(e); box.remove(); }}
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}})();
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</script>
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</article>
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'''
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search.result_container.answers.add(results.types.Answer(answer=Markup(html_payload)))
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except Exception as e:
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logger.error(f"Gemini Flash plugin error: {e}")
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return results
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