feat(nginx): add http map directive

Author: juanrgm

.changeset/early-items-obey.md

@@ -0,0 +1,5 @@
+---
+"@anymodel/nginx": minor
+---
+
+Add HTTP map directive

packages/nginx/src/Directive.ts

@@ -6,6 +6,7 @@ import { HttpGzipDirective } from "./directives/HttpGzipDirective";
 import { HttpHeadersDirective } from "./directives/HttpHeadersDirective";
 import { HttpIndexDirective } from "./directives/HttpIndexDirective";
 import { HttpLogDirective } from "./directives/HttpLogDirective";
+import { HttpMapDirective } from "./directives/HttpMapDirective";
 import { HttpProxyDirective } from "./directives/HttpProxyDirective";
 import { HttpRewriteDirective } from "./directives/HttpRewriteDirective";
 import { HttpSslDirective } from "./directives/HttpSslDirective";
@@ -25,6 +26,7 @@ export const directiveMap = {
   [HttpRewriteDirective.type]: HttpRewriteDirective,
   [HttpSslDirective.type]: HttpSslDirective,
   [HttpUpstreamDirective.type]: HttpUpstreamDirective,
+  [HttpMapDirective.type]: HttpMapDirective,
 };
 
 export type DirectiveMap = {
@@ -40,6 +42,7 @@ export type DirectiveMap = {
   [HttpRewriteDirective.type]: HttpRewriteDirective;
   [HttpSslDirective.type]: HttpSslDirective;
   [HttpUpstreamDirective.type]: HttpUpstreamDirective;
+  [HttpMapDirective.type]: HttpMapDirective;
 };
 
 export type ContextDirectiveConfig = {
@@ -72,4 +75,5 @@ export type PickAllDirectiveKeys<T extends ContextDirectiveConfig> =
     PickDirectiveKeys<T, "httpProxy"> &
     PickDirectiveKeys<T, "httpRewrite"> &
     PickDirectiveKeys<T, "httpSsl"> &
-    PickDirectiveKeys<T, "httpUpstream">;
+    PickDirectiveKeys<T, "httpUpstream"> &
+    PickDirectiveKeys<T, "httpMap">;

packages/nginx/src/contexts/AbstractContext.ts

@@ -52,9 +52,7 @@ export class AbstractContext<TSpec, TConfig = void> {
         contextType as keyof typeof selfDirectiveConfig
       ] as string[] | undefined;
       if (directiveKeys?.includes(directiveKey)) {
-        return directiveMap[contextType as keyof typeof selfDirectiveConfig][
-          "config"
-        ] as Config<any>;
+        return (directiveMap as any)[contextType]["config"] as Config<any>;
       }
     }
   }

packages/nginx/src/contexts/HttpContext.ts

@@ -13,7 +13,7 @@ export const directiveConfig = makeContextDirectiveConfig({
     "server",
     "keepalive_timeout",
     "root",
-    "etag"
+    "etag",
   ],
   httpAccess: ["allow", "deny"],
   httpFastcgi: ["fastcgi_index", "fastcgi_param", "fastcgi_read_timeout"],
@@ -46,6 +46,7 @@ export const directiveConfig = makeContextDirectiveConfig({
     "ssl_session_tickets",
     "ssl_session_timeout",
   ],
+  httpMap: ["map", "map_hash_bucket_size", "map_hash_max_size"],
 });
 
 export type HttpContextDirectiveSpec = PickAllDirectiveKeys<

packages/nginx/src/directives/HttpMapDirective.ts

@@ -0,0 +1,42 @@
+import { AbstractDirective, Config } from "./AbstractDirective";
+
+export type HttpMapDirectiveSpec = {
+  /**
+   * @link https://nginx.org/en/docs/http/ngx_http_map_module.html#map
+   */
+  map?: {
+    source: string;
+    variable: string;
+    values: Record<string, number | string | undefined>;
+  }[];
+  /**
+   * @link https://nginx.org/en/docs/http/ngx_http_map_module.html#map_hash_bucket_size
+   */
+  map_hash_bucket_size?: number;
+  /**
+   * @link https://nginx.org/en/docs/http/ngx_http_map_module.html#map_hash_max_size
+   */
+  map_hash_max_size?: number;
+};
+
+/**
+ * @link https://nginx.org/en/docs/http/ngx_http_access_module.html#directives
+ */
+export class HttpMapDirective extends AbstractDirective<HttpMapDirectiveSpec> {
+  static type = "httpMap" as const;
+  static config: Config<HttpMapDirectiveSpec> = {
+    map: (dir, level) =>
+      dir.map((item) => {
+        const pad = " ".repeat(level + 1);
+        const values = Object.entries(item.values)
+          .reduce((result, [key, value]) => {
+            result.push(`${pad} ${key} ${value};`);
+            return result;
+          }, [] as string[])
+          .join("\n");
+        return `${item.source} ${item.variable} {\n${values}\n${pad}}`;
+      }),
+    map_hash_bucket_size: null,
+    map_hash_max_size: null,
+  };
+}