init commit

plugins/plugin.lua

@@ -0,0 +1,62 @@
+local log = require("core.log")
+local ctx = require("core.ctx")
+local json = require("core.json")
+
+local _M = {version = 0.2}
+
+local phases = {
+    request = {
+        'access',
+        'rewrite'
+    },
+    response = {
+        'header_filter',
+        'body_filter'
+    }
+}
+
+function _M.run(handle, phase, plugins)
+    if not plugins or #plugins == 0 then
+        return ctx
+    end
+
+    local resp_header = {}
+
+    local context = {
+        headers = handle:headers(),
+        body    = handle:body(),
+        log     = log.new(handle),
+        var     = ctx.set_vars_meta(handle),
+    }
+
+    function context.set_resp_header(key, value)
+        resp_header[key] = value
+    end
+
+    for _, plugin in ipairs(plugins) do
+        local ok, plugin_object = pcall(require, "plugins." .. plugin.name)
+        if ok then
+            local earth_phases = phases[phase]
+            for _, phase_name in ipairs(earth_phases) do
+                local phase_func = plugin_object[phase_name]
+                if type(phase_func) == "function" then
+                    handle:logTrace("phase_name: " .. plugin.name .. "." .. phase_name)
+                    local status, body = phase_func(plugin.conf, context)
+                    if status then
+                        resp_header[":status"] = status
+                        if type(body) == "table" then
+                            body = json.encode(body)
+                        end
+                        return handle:respond(resp_header, body)
+                    end
+                end
+            end
+        else
+            handle:logWarn("failed to load plugin ["..plugin.name.."] err: "..plugin_object)
+        end
+    end
+
+    return ctx
+end
+
+return _M