mirror of
https://gitcode.com/JianFeeeee/ModelRouter.git
synced 2026-09-20 08:57:57 +00:00
b2183df1e8
Every upstream formats errors differently, which is adapter territory: the protocol gains an optional transform_error(status, body) hook and all built-in adapters implement their own envelope parsing (zen free-pool labels, anthropic/gemini/ollama/mistral shapes, sensenova quota notes, agentrouter WAF pages). The core keeps a single uniform fallback: when no hook yields a reason clients get "api error <status>: unknown error" and the raw body goes to server logs only.
127 lines
4.1 KiB
Lua
127 lines
4.1 KiB
Lua
local adapter = {}
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adapter.name = "agentrouter"
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adapter.version = "1.0.0"
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adapter.endpoint = "/chat/completions"
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adapter.headers = {}
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-- AgentRouter 的 WAF 会按客户端指纹白名单校验，只放行官方客户端。
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-- 这里通过 build_headers 注入官方客户端 User-Agent 以通过校验。
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-- 默认 QwenCode 指纹（实测可通）；可在 source.meta.user_agent 覆盖成 Claude Code 指纹。
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local default_ua = "QwenCode/0.2.0 (linux; x64)"
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function adapter.transform_request(raw_body)
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local ok, req = pcall(json.decode, raw_body)
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if not ok then return raw_body end
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req.disable_thinking = nil
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req.extra_body = nil
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if req.messages then
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for _, msg in ipairs(req.messages) do
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msg.reasoning_content = nil
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end
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end
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return json.encode(req)
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end
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-- 注入 Authorization + 官方客户端 User-Agent
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function adapter.build_headers(meta)
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local ua = default_ua
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local meta_ua = (meta.source or {}).meta and (meta.source).meta.user_agent
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if meta_ua and meta_ua ~= "" then
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ua = meta_ua
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end
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return {
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["Content-Type"] = "application/json",
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["Authorization"] = "Bearer " .. meta.api_key,
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["User-Agent"] = ua,
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}
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end
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function adapter.transform_response(raw_body)
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local ok, resp = pcall(json.decode, raw_body)
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if not ok or resp == nil then return raw_body end
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local unified = {
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content = "",
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finish_reason = "",
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token_usage = { prompt = 0, completion = 0, total = 0 }
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}
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if type(resp.usage) == "table" then
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unified.token_usage.prompt = resp.usage.prompt_tokens or 0
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unified.token_usage.completion = resp.usage.completion_tokens or 0
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unified.token_usage.total = resp.usage.total_tokens or 0
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end
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if type(resp.choices) == "table" and #resp.choices > 0 then
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local ch = resp.choices[1]
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if type(ch.message) == "table" then
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unified.content = ch.message.content or ""
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if ch.message.reasoning_content then
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unified.reasoning_content = ch.message.reasoning_content
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end
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if type(ch.message.tool_calls) == "table" then
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local tcs = {}
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for _, tc in ipairs(ch.message.tool_calls) do
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local args_ok, args = pcall(json.decode, tc["function"].arguments)
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if not args_ok then args = {} end
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table.insert(tcs, {
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id = tc.id,
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type = tc.type or "function",
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name = tc["function"].name,
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arguments = args
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})
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end
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unified.tool_calls = tcs
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end
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end
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unified.finish_reason = ch.finish_reason or ""
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end
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return json.encode(unified)
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end
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function adapter.transform_stream_chunk(raw_chunk)
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local ok, chunk = pcall(json.decode, raw_chunk)
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if not ok then return "" end
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if not chunk.choices or #chunk.choices == 0 then return "" end
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local delta = chunk.choices[1].delta or {}
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local fr = chunk.choices[1].finish_reason
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local finish = (type(fr) == "string" and fr ~= "") and fr or nil
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local unified = {
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content = delta.content or "",
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done = (finish ~= nil)
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}
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if finish then
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unified.finish_reason = finish
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end
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if delta.reasoning_content then
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unified.reasoning_content = delta.reasoning_content
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end
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if delta.tool_calls then
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unified.tool_calls = delta.tool_calls
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end
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return json.encode(unified)
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end
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-- 错误收敛：前置 WAF 会返回整页 HTML（阿里云盾），JSON 时为 new-api 风格
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function adapter.transform_error(status, body)
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local low = string.lower(body or "")
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if string.sub(low, 1, 9) == "<!doctype" or string.find(low, "<html", 1, true) then
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return "blocked by AgentRouter WAF"
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end
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local ok, resp = pcall(json.decode, body)
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if not ok or type(resp) ~= "table" then return nil end
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local e = resp.error
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if type(e) == "table" and type(e.message) == "string" then
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return e.message
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end
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return nil
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end
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return adapter
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