add file exists checking in my_uuid

2023-11-12 02:25:29 +08:00
parent 0b4cc166e0
commit b4835ef305
5 changed files with 28 additions and 77 deletions
@@ -1,14 +1,23 @@
+local commons = require("lib.commons")
+
 local _M = {}

 function _M.uuid()
    local uuid_cmd = "/usr/bin/uuid"

-    local handle = io.popen(uuid_cmd)
-    local result = handle:read("*a")
-    local r2 = string.gsub(result, "%s+", "")
-    local r3 = string.gsub(r2,"\n","")
-    ngx.log(ngx.INFO, "uuid -> ", r3)
-    return r3
+    if commons.file_exists(uuid_cmd) then
+        local handle = io.popen(uuid_cmd)
+        local result = handle:read("*a")
+        local r2 = string.gsub(result, "%s+", "")
+        local r3 = string.gsub(r2,"\n","")
+        ngx.log(ngx.INFO, "uuid -> ", r3)
+        return r3
+    else
+        ngx.status = 500
+        ngx.log(ngx.ERR, "my_uuid *FAILED* `/usr/bin/uuid` not exists!")
+        ngx.say("my_uuid *FAILED* `/usr/bin/uuid` not exists!")
+        ngx.exit()
+    end
 end

 return _M