File size: 5,887 Bytes
a21c316 | 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 | use serde_json::Value;
use tokio::fs;
use std::path::PathBuf;
use futures::StreamExt;
use crate::proxy::config::DebugLoggingConfig;
fn build_filename(prefix: &str, trace_id: Option<&str>) -> String {
let ts = chrono::Utc::now().format("%Y%m%d_%H%M%S%.3f");
let tid = trace_id.unwrap_or("unknown");
format!("{}_{}_{}.json", ts, tid, prefix)
}
fn resolve_output_dir(cfg: &DebugLoggingConfig) -> Option<PathBuf> {
if let Some(dir) = cfg.output_dir.as_ref() {
return Some(PathBuf::from(dir));
}
if let Ok(data_dir) = crate::modules::account::get_data_dir() {
return Some(data_dir.join("debug_logs"));
}
None
}
pub async fn write_debug_payload(
cfg: &DebugLoggingConfig,
trace_id: Option<&str>,
prefix: &str,
payload: &Value,
) {
if !cfg.enabled {
return;
}
let output_dir = match resolve_output_dir(cfg) {
Some(dir) => dir,
None => {
tracing::warn!("[Debug-Log] Enabled but output_dir is not available.");
return;
}
};
if let Err(e) = fs::create_dir_all(&output_dir).await {
tracing::warn!("[Debug-Log] Failed to create output dir: {}", e);
return;
}
let filename = build_filename(prefix, trace_id);
let path = output_dir.join(filename);
match serde_json::to_vec_pretty(payload) {
Ok(bytes) => {
if let Err(e) = fs::write(&path, bytes).await {
tracing::warn!("[Debug-Log] Failed to write file: {}", e);
}
}
Err(e) => {
tracing::warn!("[Debug-Log] Failed to serialize payload: {}", e);
}
}
}
pub fn is_enabled(cfg: &DebugLoggingConfig) -> bool {
cfg.enabled
}
/// 解析 SSE 流式数据，提取 thinking 和正文内容
fn parse_sse_stream(raw: &str) -> (String, String) {
let mut thinking_parts: Vec<String> = Vec::new();
let mut content_parts: Vec<String> = Vec::new();
for line in raw.lines() {
let line = line.trim();
if !line.starts_with("data: ") {
continue;
}
let json_str = &line[6..]; // 去掉 "data: " 前缀
if json_str.is_empty() || json_str == "[DONE]" {
continue;
}
// 尝试解析 JSON
if let Ok(parsed) = serde_json::from_str::<Value>(json_str) {
// Gemini/v1internal 格式: response.candidates[0].content.parts[0]
if let Some(candidates) = parsed.get("response")
.and_then(|r| r.get("candidates"))
.and_then(|c| c.as_array())
{
for candidate in candidates {
if let Some(parts) = candidate.get("content")
.and_then(|c| c.get("parts"))
.and_then(|p| p.as_array())
{
for part in parts {
let text = part.get("text")
.and_then(|t| t.as_str())
.unwrap_or("");
let is_thought = part.get("thought")
.and_then(|t| t.as_bool())
.unwrap_or(false);
if !text.is_empty() {
if is_thought {
thinking_parts.push(text.to_string());
} else {
content_parts.push(text.to_string());
}
}
}
}
}
}
// OpenAI 格式兼容: choices[0].delta.content
else if let Some(choices) = parsed.get("choices").and_then(|c| c.as_array()) {
for choice in choices {
if let Some(delta) = choice.get("delta") {
if let Some(content) = delta.get("content").and_then(|c| c.as_str()) {
if !content.is_empty() {
content_parts.push(content.to_string());
}
}
}
}
}
}
}
(thinking_parts.join(""), content_parts.join(""))
}
pub fn wrap_stream_with_debug<S, E>(
stream: std::pin::Pin<Box<S>>,
cfg: DebugLoggingConfig,
trace_id: String,
prefix: &'static str,
meta: Value,
) -> std::pin::Pin<Box<dyn futures::Stream<Item = Result<bytes::Bytes, E>> + Send>>
where
S: futures::Stream<Item = Result<bytes::Bytes, E>> + Send + 'static,
E: std::fmt::Display + Send + 'static,
{
if !is_enabled(&cfg) {
return stream;
}
let wrapped = async_stream::stream! {
let mut collected: Vec<u8> = Vec::new();
let mut inner = stream;
while let Some(item) = inner.next().await {
if let Ok(bytes) = &item {
collected.extend_from_slice(bytes);
}
yield item;
}
let raw_text = String::from_utf8_lossy(&collected).to_string();
let (thinking_content, response_content) = parse_sse_stream(&raw_text);
let mut payload = serde_json::json!({
"kind": "upstream_response",
"trace_id": trace_id,
"meta": meta,
});
// 只有在有内容时才添加对应字段
if !thinking_content.is_empty() {
payload["thinking_content"] = serde_json::Value::String(thinking_content);
}
if !response_content.is_empty() {
payload["response_content"] = serde_json::Value::String(response_content);
}
write_debug_payload(&cfg, Some(&payload["trace_id"].as_str().unwrap_or("unknown")), prefix, &payload).await;
};
Box::pin(wrapped)
}
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