URI authority inference for common URI formats

packages/js/core/README.md

@@ -340,7 +340,7 @@ export interface UriConfig {
 /**
  * A Polywrap URI. Some examples of valid URIs are:
  * wrap://ipfs/QmHASH
- * wrap://ens/sub.dimain.eth
+ * wrap://ens/sub.domain.eth
  * wrap://fs/directory/file.txt
  * wrap://uns/domain.crypto
  *

packages/js/core/src/__tests__/Uri.spec.ts

@@ -15,7 +15,7 @@ describe("Uri", () => {
   });
 
   it("Fails if an authority is not present", () => {
-    expect(() => new Uri("wrap://path")).toThrowError(/URI is malformed,/);
+    expect(() => new Uri("wrap://path")).toThrowError(/URI authority is missing,/);
   });
 
   it("Fails if a path is not present", () => {
@@ -50,4 +50,31 @@ describe("Uri", () => {
       path: "uri",
     });
   });
+
+  it("Infers common URI authorities", () => {
+    let uri = new Uri("https://domain.com/path/to/thing");
+    expect(uri.uri).toEqual("wrap://https/domain.com/path/to/thing");
+    expect(uri.authority).toEqual("https");
+    expect(uri.path).toEqual("domain.com/path/to/thing");
+
+    uri = new Uri("http://domain.com/path/to/thing");
+    expect(uri.uri).toEqual("wrap://http/domain.com/path/to/thing");
+    expect(uri.authority).toEqual("http");
+    expect(uri.path).toEqual("domain.com/path/to/thing");
+
+    uri = new Uri("ipfs://QmaM318ABUXDhc5eZGGbmDxkb2ZgnbLxigm5TyZcCsh1Kw");
+    expect(uri.uri).toEqual("wrap://ipfs/QmaM318ABUXDhc5eZGGbmDxkb2ZgnbLxigm5TyZcCsh1Kw");
+    expect(uri.authority).toEqual("ipfs");
+    expect(uri.path).toEqual("QmaM318ABUXDhc5eZGGbmDxkb2ZgnbLxigm5TyZcCsh1Kw");
+
+    uri = new Uri("ens://domain.eth");
+    expect(uri.uri).toEqual("wrap://ens/domain.eth");
+    expect(uri.authority).toEqual("ens");
+    expect(uri.path).toEqual("domain.eth");
+
+    uri = new Uri("ens://domain.eth:pkg@1.0.0");
+    expect(uri.uri).toEqual("wrap://ens/domain.eth:pkg@1.0.0");
+    expect(uri.authority).toEqual("ens");
+    expect(uri.path).toEqual("domain.eth:pkg@1.0.0");
+  });
 });

packages/js/core/src/types/Uri.ts

@@ -1,3 +1,5 @@
+import { RegExpGroups } from "../utils/RegExpGroups";
+
 import { Result, ResultErr, ResultOk } from "@polywrap/result";
 
 // $start: UriConfig
@@ -18,7 +20,7 @@ export interface UriConfig {
 /**
  * A Polywrap URI. Some examples of valid URIs are:
  * wrap://ipfs/QmHASH
- * wrap://ens/sub.dimain.eth
+ * wrap://ens/sub.domain.eth
  * wrap://fs/directory/file.txt
  * wrap://uns/domain.crypto
  *
@@ -135,17 +137,10 @@ export class Uri {
     }
 
     // Extract the authoriy & path
-    const result = processed.match(/wrap:\/\/([a-z][a-z0-9-_]+)\/(.*)/);
-    let uriParts: string[];
-
-    // Remove all empty strings
-    if (result) {
-      uriParts = result.filter((str) => !!str);
-    } else {
-      uriParts = [];
-    }
+    const re = /^wrap:\/\/((?<authority>[a-z][a-z0-9-_]+)\/)?(?<path>.*)$/;
+    const result: RegExpGroups<"authority" | "path"> = re.exec(processed);
 
-    if (uriParts.length !== 3) {
+    if (!result || !result.groups || !result.groups.path) {
       return ResultErr(
         Error(
           `URI is malformed, here are some examples of valid URIs:\n` +
@@ -157,10 +152,30 @@ export class Uri {
       );
     }
 
+    let { authority, path } = result.groups;
+
+    if (!authority) {
+      const inferred = Uri.inferAuthority(path);
+      if (!inferred) {
+        return ResultErr(
+          Error(
+            `URI authority is missing, here are some examples of valid URIs:\n` +
+              `wrap://ipfs/QmHASH\n` +
+              `wrap://ens/domain.eth\n` +
+              `ens/domain.eth\n\n` +
+              `Invalid URI Received: ${uri}`
+          )
+        );
+      }
+      authority = inferred.authority;
+      path = inferred.path;
+      processed = `wrap://${authority}/${path}`;
+    }
+
     return ResultOk({
       uri: processed,
-      authority: uriParts[1],
-      path: uriParts[2],
+      authority,
+      path,
     });
   }
 
@@ -194,4 +209,17 @@ export class Uri {
   public toJSON(): string /* $ */ {
     return this._config.uri;
   }
+
+  private static inferAuthority(_path: string): UriConfig | undefined {
+    const re = /^(?<authority>[a-z][a-z0-9-_]+):\/\/(?<path>.*)$/;
+    const result: RegExpGroups<"authority" | "path"> = re.exec(_path);
+
+    if (!result || !result.groups) {
+      return undefined;
+    }
+    const authority = result.groups.authority as string;
+    const path = result.groups.path as string;
+
+    return { authority, path, uri: `wrap://${authority}/${path}` };
+  }
 }

packages/js/core/src/types/WrapError.ts

@@ -1,4 +1,5 @@
 import { CleanResolutionStep } from "../algorithms";
+import { RegExpGroups } from "../utils/RegExpGroups";
 
 export type ErrorSource = Readonly<{
   file?: string;
@@ -52,12 +53,6 @@ export interface WrapErrorOptions {
   innerError?: WrapError;
 }
 
-type RegExpGroups<T extends string> =
-  | (RegExpExecArray & {
-      groups?: { [name in T]: string | undefined } | { [key: string]: string };
-    })
-  | null;
-
 export class WrapError extends Error {
   readonly name: string = "WrapError";
   readonly code: WrapErrorCode;
@@ -174,7 +169,7 @@ export class WrapError extends Error {
       | "resolutionStack"
       | "cause"
     > = WrapError.re.exec(error);
-    if (!result) {
+    if (!result || !result.groups) {
       return undefined;
     }
     const {
@@ -188,8 +183,7 @@ export class WrapError extends Error {
       col,
       resolutionStack: resolutionStackStr,
       cause,
-      // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
-    } = result.groups!;
+    } = result.groups;
 
     const code = parseInt(codeStr as string);
 

packages/js/core/src/utils/RegExpGroups.ts

@@ -0,0 +1,5 @@
+export type RegExpGroups<T extends string> =
+  | (RegExpExecArray & {
+      groups?: { [name in T]: string | undefined } | { [key: string]: string };
+    })
+  | null;

packages/js/core/src/utils/index.ts

@@ -2,3 +2,4 @@ export * from "./combinePaths";
 export * from "./getEnvFromUriHistory";
 export * from "./is-buffer";
 export * from "./typesHandler";
+export * from "./RegExpGroups";

packages/js/plugin/src/utils/getErrorSource.ts

@@ -1,10 +1,4 @@
-import { ErrorSource } from "@polywrap/core-js";
-
-type RegExpGroups<T extends string> =
-  | (RegExpExecArray & {
-      groups?: { [name in T]: string | undefined } | { [key: string]: string };
-    })
-  | null;
+import { ErrorSource, RegExpGroups } from "@polywrap/core-js";
 
 const re = /\((?<file>.*):(?<row>\d+):(?<col>\d+)\)$/;