@import url("/assets/md.css")feat: canarytool :3

@import url("/assets/md.css")

1 files changed, 49 insertions, 5 deletions

diff --git a/src/routes/canaries/canaries.ts b/src/routes/canaries/canaries.ts
index de5c44f..d28baab 100644
--- a/src/routes/canaries/canaries.ts
+++ b/src/routes/canaries/canaries.ts
@@ -1,25 +1,69 @@
+import { browser } from "$app/environment";
+import { validateSignature } from "./keystore";
+
 export const canaries: Canary[] = [];
 export class Canary {
   public constructor(
     public name: string,
     public description: string,
+    public signer: string,
     public url: string,
     public keyIdentifier: string,
+    public contentType: string = 'text/plain',
   ) {
     canaries.push(this);
   }
+  public forceContentType = false;
+  public async getRawText() {
+    if (!browser) throw new Error('This should only be done in a browser.')
+    const res = await fetch(this.url)
+    if (res.ok) {
+      if (!this.forceContentType) this.contentType = res.headers.get('Content-Type') || this.contentType
+      const text = await res.text()
+      return text
+    } else {
+      throw new Error(`Fetching canary failed with code ${res.status} (${res.statusText}):
+${await res.text().catch(e => `Unknown (Unable to get text, ${JSON.stringify(e)})`)}`)
+    }
+  }
+  public async getValidatedText(rawText: string | Promise<string> = this.getRawText()) {
+    return await validateSignature(await rawText, this.keyIdentifier)
+  }
+  /** Returns downloadable data url if signature passes, otherwise returns null */
+  public async getUrl(rawText: string | Promise<string> = this.getRawText()) {
+    const t = await rawText;
+    let stripped: string;
+    try {
+      stripped = await this.getValidatedText(t);
+    } catch (error) {
+      console.warn('Failed to validate signature: ', error);
+      return null;
+    }
+    return {
+      stripped: URL.createObjectURL(new Blob([stripped], {
+        type: this.contentType,
+      })),
+      signed: URL.createObjectURL(new Blob([t], {
+        type: this.contentType,
+      })),
+    }
+  }
 }
 new Canary(
-  'estrogen.zone, memdmp',
-  'This canary is responsible for services hosted around estrogen.zone and yuridick.gay',
+  'estrogen.zone',
+  'Services hosted around estrogen.zone and yuridick.gay',
+  'memdmp',
   '/canaries/memdmp:estrogen.zone',
   'memdmp',
+  'text/plain; charset=utf-8'
 );
 
 new Canary(
   'kyun.host',
-  'This canary is responsible for the VPS provider "kyun.host"',
-  // '/canaries/napatha:kyun.host',
-  'https://files.kyun.host/canary.txt',
+  'The VPS provider "kyun.host"',
+  'napatha',
+  '/canaries/napatha:kyun.host',
+  // 'https://files.kyun.host/canary.txt',
   'napatha',
+  'text/plain; charset=utf-8'
 );