78 lines
2.1 KiB
Go
78 lines
2.1 KiB
Go
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// ___ ____ ___ ___
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// \ \ / / | _ | __| \ \ / / || | __ || || _ |
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// \ \/ / |___ | |__ \ \/ / || |___ || ||___|
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// \ / | _ | _ | \ / || __ | || ||\\
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// \/ |___ |___ | \/ || ____| || || \\
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//
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// Copyright (c) 2021 Piotr Biernat. https://pbiernat.dev. MIT License
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// Repo: https://git.pbiernat.dev/golang/vegvisir
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package server
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import (
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"fmt"
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"git.pbiernat.dev/golang/vegvisir/pkg/cache"
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"git.pbiernat.dev/golang/vegvisir/pkg/config"
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"log"
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"regexp"
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"strings"
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)
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// Router struct
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type Router struct {
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config *config.Config
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cache *cache.MemoryDatastore
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}
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// NewRouter function
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func NewRouter(config *config.Config, ds *cache.MemoryDatastore, ttl int) *Router {
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return &Router{
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config: config,
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cache: ds,
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//cache: cache.NewRedisDatastore(config.Cache.Host, config.Cache.Password, config.Cache.Database, config.Cache.Port),
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}
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}
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// FindByRequestURL function
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func (r *Router) FindByRequestURL(url []byte) (bool, *cache.RouteCache) {
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var sURL = string(url)
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//if cRoute, ok := r.cache[sURL]; ok {
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if cRoute, err := r.cache.GetKey("route_" + sURL); err == nil {
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return true, cRoute.(*cache.RouteCache)
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//response := &cache.RouteCache{} // FIXME #67: Simplify
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//ffjson.Unmarshal([]byte(cRoute.(string)), response)
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//return true, response // FIXME: redis cache tmp
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}
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for bID := range r.config.Backends {
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bck := r.config.Backends[bID]
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if !strings.Contains(sURL, bck.PrefixURL) {
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continue
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}
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for rID := range bck.Routes {
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rCfg := &bck.Routes[rID]
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regxp := regexp.MustCompile(fmt.Sprintf("%s%s", bck.PrefixURL, rCfg.Pattern))
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if regxp.Match(url) {
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tURL := bck.BackendAddress + regxp.ReplaceAllString(sURL, rCfg.Target)
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route := cache.NewRouteCache(sURL, tURL)
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//routeJSON, _ := ffjson.Marshal(&route) // FIXME: TMP
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if err := r.cache.SetKey("route_"+sURL, route, r.config.Cache.RouteTTL); err != nil {
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// FIXME: ^^ use cache.Manager* after refactor
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log.Println("Error saving route cache:", sURL)
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}
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log.Println("Saved route:", sURL, route.TargetURL)
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return true, route
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}
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}
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}
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return false, &cache.RouteCache{}
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}
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