Add support for redis authentication (#420)

* Add support for redis authentication (Update redpool dependency)
 - Add configuration option `redisPassword`

* Reference `redisPassword` in nitter.conf

src/config.nim

@@ -33,6 +33,7 @@ proc getConfig*(path: string): (Config, parseCfg.Config) =
     redisPort: cfg.get("Cache", "redisPort", 6379),
     redisConns: cfg.get("Cache", "redisConnections", 20),
     redisMaxConns: cfg.get("Cache", "redisMaxConnections", 30),
+    redisPassword: cfg.get("Cache", "redisPassword", ""),
 
     replaceYouTube: cfg.get("Preferences", "replaceYouTube", "piped.kavin.rocks")
   )

src/redis_cache.nim

@@ -30,7 +30,7 @@ proc migrate*(key, match: string) {.async.} =
 proc initRedisPool*(cfg: Config) {.async.} =
   try:
     pool = await newRedisPool(cfg.redisConns, maxConns=cfg.redisMaxConns,
-                              host=cfg.redisHost, port=cfg.redisPort)
+                              host=cfg.redisHost, port=cfg.redisPort, password=cfg.redisPassword)
 
     await migrate("snappyRss", "rss:*")
     await migrate("oldFrosty", "*")

src/types.nim

@@ -220,6 +220,7 @@ type
     redisPort*: int
     redisConns*: int
     redisMaxConns*: int
+    redisPassword*: string
 
     replaceYouTube*: string