feat: add download logs functionality and update log file size limit

ipkg/CONTROL/control

@@ -7,5 +7,5 @@ License: GPL-3.0-only
 Section: net
 SourceDateEpoch: 1711267200
 Architecture: all
-Installed-Size:  4495360
+Installed-Size:  4505600
 Description: Advanced HTTP User-Agent Rewriting Tool.

ipkg/CONTROL/control-e

@@ -7,5 +7,5 @@ License: GPL-3.0-only
 Section: net
 SourceDateEpoch: 1711267200
 Architecture: all
-Installed-Size:  4495360
+Installed-Size:  4505600
 Description: Advanced HTTP User-Agent Rewriting Tool.

openwrt/files/luci/cbi.lua

@@ -97,6 +97,13 @@ logLines.default = "1000"
 logLines.datatype = "uinteger"
 logLines.rmempty = false
 
+download = general:taboption("log", Button, "_download", translate("Download Logs"))
+download.inputtitle = translate("Download Logs")
+download.inputstyle = "apply"
+function download.write(self, section)
+    luci.http.redirect(luci.dispatcher.build_url("admin/services/ua3f/download_log"))
+end
+
 stats = general:taboption("stats", DummyValue, "")
 stats.template = "ua3f/statistics"
 

openwrt/files/luci/controller.lua

@@ -2,4 +2,38 @@ module("luci.controller.ua3f", package.seeall)
 
 function index()
     entry({ "admin", "services", "ua3f" }, cbi("ua3f"), _("UA3F"), 1)
+    entry({ "admin", "services", "ua3f", "download_log" }, call("action_download_log"), _("Download Logs"), 11).leaf = true
+end
+
+function action_download_log()
+    local nixio = require "nixio"
+    local fs = require "nixio.fs"
+    local http = require "luci.http"
+    local tmpfile = "/tmp/ua3f_logs.tar.gz"
+
+    local cmd = "cd /var/log && tar -czf " .. tmpfile .. " ua3f >/dev/null 2>&1"
+    os.execute(cmd)
+
+    if not fs.access(tmpfile) then
+        http.status(500, "Internal Server Error")
+        http.prepare_content("text/plain")
+        http.write("Failed to create archive")
+        return
+    end
+
+    http.header("Content-Type", "application/gzip")
+    http.header("Content-Disposition", 'attachment; filename="ua3f_logs.tar.gz"')
+    http.header("Content-Length", tostring(fs.stat(tmpfile).size))
+
+    local fp = io.open(tmpfile, "rb")
+    if fp then
+        while true do
+            local chunk = fp:read(2048)
+            if not chunk then break end
+            http.write(chunk)
+        end
+        fp:close()
+    end
+
+    nixio.fs.remove(tmpfile)
 end

openwrt/po/zh_cn/ua3f.po

@@ -82,3 +82,6 @@ msgstr "显示行数"
 
 msgid "Sets the logging level. Do not keep the log level set to debug/info/warn for an extended period of time."
 msgstr "设置日志级别，请勿长时间将日志级别设置为 debug / info / warn"
+
+msgid "Download Logs"
+msgstr "下载日志"

src/internal/log/log.go

@@ -39,7 +39,7 @@ func SetLogConf(level string) {
 	writer2 := os.Stdout
 	writer3 := &lumberjack.Logger{
 		Filename:   log_file,
-		MaxSize:    2, // megabytes
+		MaxSize:    5, // megabytes
 		MaxBackups: 5,
 		MaxAge:     7, //days
 		LocalTime:  true,