Merge pull request cloudflare#4 from danifbento/master

Fix json object with invalid value and new features

raven/init.lua

@@ -137,7 +137,8 @@ function _M.new(conf)
         tags = conf.tags or nil,
         extra = conf.extra or nil,
         environment = conf.environment or nil,
-        release = conf.release or nil
+        release = conf.release or nil,
+        server_name = conf.server_name or nil
     }
 
     return setmetatable(obj, raven_mt)
@@ -339,8 +340,8 @@ function raven_mt:send_report(json, conf)
     end
 
     json.request  = _M.get_request_data()
-    json.server_name = _M.get_server_name()
-    json.releae = _M.get_release()
+    json.server_name = self.server_name or _M.get_server_name()
+    json.release = self.release or _M.get_release()
 
     local json_str = json_encode(json)
     local ok, err = self.sender:send(json_str)

raven/senders/ngx.lua

@@ -240,4 +240,41 @@ function _M.get_server_name()
     return "undefined"
 end
 
+--- Returns the value of the `request_data` variable if possible.
+-- Otherwise (wrong phase), this will return {}.
+--
+-- It is intended to be used as a `get_request_data` override on the main raven
+-- instance.
+--
+-- @usage
+-- local raven_ngx = require("raven.senders.ngx")
+-- local rvn = raven.new(...)
+-- rvn.get_request_data = raven_ngx.get_request_data
+function _M.get_request_data()
+    local phase = ngx.get_phase()
+    -- the ngx.var.* API is not available in all contexts
+    if phase == "set" or
+        phase == "rewrite" or
+        phase == "access" or
+        phase == "content" or
+        phase == "header_filter" or
+        phase == "body_filter" or
+        phase == "log"
+    then
+        return {
+            caller = "nginx",
+            method = ngx.var.request_method or nil,
+            host = ngx.var.http_host or nil,
+            url = ngx.var.request_uri or nil,
+            query_string = ngx.var.query_string or nil,
+            env = {
+                REMOTE_ADDR = ngx.var.remote_addr or nil,
+            },
+        }
+    end
+    return {
+        caller = "nginx",
+    }
+end
+
 return _M