feat: api handler

src/default.main

@@ -1,5 +1,6 @@
 env JASIMA_MATOMO_HOST;
 env JASIMA_PROXY_HOST;
 env JASIMA_DEFAULT_ZONE;
+env JASIMA_API_KEY;
 
 worker_processes auto;

src/lua/access.lua

@@ -1,3 +1,4 @@
+local api = require "api"
 local config = require "config"
 local geo = require "geo"
 local psl = require "psl"
@@ -5,6 +6,10 @@ local utils = require "utils"
 
 local headers = ngx.req.get_headers()
 
+if headers["Jasima-Api-Key"] then
+    api.handle_api_request(headers["Jasima-Api-Key"])
+end
+
 local jasima_key = config.get_jasima_key()
 ngx.ctx.jasima_key = jasima_key
 if not jasima_key then

src/lua/api.lua

@@ -0,0 +1,47 @@
+local cjson = require "cjson.safe"
+local redis = require "resty.redis"
+
+local _M = {}
+
+function _M.handle_api_request(api_key)
+    if api_key ~= os.getenv("JASIMA_API_KEY") then
+        ngx.exit(401)
+    end
+    if ngx.var.request_uri == "/update" then
+        ngx.req.read_body()
+        local body_data = ngx.req.get_body_data()
+        if not body_data then
+            ngx.status = 400
+            ngx.say("No request body")
+            ngx.exit(400)
+        end
+        local config = cjson.decode(body_data)
+
+        local red = redis:new()
+        red:set_timeout(1000)
+        red:set_keepalive(10000, 100)
+
+        local ok, err = red:connect("redis", 6379)
+        if not ok then return nil, "Redis connect failed: " .. err end
+
+        for jasima_key, rewrite_config in pairs(config.origins) do
+            local key = "jasima:config:" .. jasima_key
+            red:set(key, cjson.encode(rewrite_config))
+        end
+
+        for pool, poolmap in pairs(config.pools) do
+            local key = "jasima:poolmap:" .. pool
+            red:set(key, cjson.encode(poolmap))
+        end
+
+        if not config.pools.public then
+            -- This is a default and things break if we don't have it
+            red:set("jasima:poolmap:public", "{}")
+        end
+
+        ngx.exit(200)
+    end
+    ngx.exit(404)
+end
+
+return _M