Merge pull request #34 from archtika/devel

Escape user input <ins> and <del> elements in logs

nix/package.nix

@@ -10,7 +10,7 @@ let
   web = buildNpmPackage {
     name = "web-app";
     src = ../web-app;
-    npmDepsHash = "sha256-2udi8vLLvdoZxIyRKLOCfEpEMsooxsIrM1wiua1QPAI=";
+    npmDepsHash = "sha256-J58LwSEQa0p6J6h/wPhpGY/60n9a7TOV5WfNm4K1NH0=";
     npmFlags = [ "--legacy-peer-deps" ];
     installPhase = ''
       mkdir -p $out/web-app

web-app/package-lock.json

@@ -36,7 +36,7 @@
         "svelte-check": "4.1.5",
         "typescript": "5.8.2",
         "typescript-eslint": "8.27.0",
-        "vite": "6.2.2"
+        "vite": "6.2.5"
       }
     },
     "node_modules/@ampproject/remapping": {
@@ -4575,9 +4575,9 @@
       "license": "MIT"
     },
     "node_modules/vite": {
-      "version": "6.2.2",
+      "version": "6.2.5",
-      "resolved": "https://registry.npmjs.org/vite/-/vite-6.2.2.tgz",
+      "resolved": "https://registry.npmjs.org/vite/-/vite-6.2.5.tgz",
-      "integrity": "sha512-yW7PeMM+LkDzc7CgJuRLMW2Jz0FxMOsVJ8Lv3gpgW9WLcb9cTW+121UEr1hvmfR7w3SegR5ItvYyzVz1vxNJgQ==",
+      "integrity": "sha512-j023J/hCAa4pRIUH6J9HemwYfjB5llR2Ps0CWeikOtdR8+pAURAk0DoJC5/mm9kd+UgdnIy7d6HE4EAvlYhPhA==",
       "dev": true,
       "license": "MIT",
       "dependencies": {

web-app/package.json

@@ -35,7 +35,7 @@
     "svelte-check": "4.1.5",
     "typescript": "5.8.2",
     "typescript-eslint": "8.27.0",
-    "vite": "6.2.2"
+    "vite": "6.2.5"
   },
   "dependencies": {
     "diff-match-patch": "1.0.5",

web-app/src/routes/(authenticated)/website/[websiteId]/logs/+page.server.ts

@@ -80,17 +80,18 @@ export const actions: Actions = {
 
     const htmlDiff = (oldValue: string, newValue: string) => {
       const diff = dmp.diff_main(oldValue, newValue);
-      dmp.diff_cleanupSemantic(diff);
 
       return diff
         .map(([op, text]) => {
+          const escapedText = text.replace(/</g, "&lt;").replace(/>/g, "&gt;");
+
           switch (op) {
             case 1:
-              return `<ins>${text}</ins>`;
+              return `<ins>${escapedText}</ins>`;
             case -1:
-              return `<del>${text}</del>`;
+              return `<del>${escapedText}</del>`;
             default:
-              return text;
+              return escapedText;
           }
         })
         .join("");

web-app/src/routes/(authenticated)/website/[websiteId]/logs/+page.svelte

@@ -141,24 +141,20 @@
                       <button type="submit">Compute diff</button>
                     </form>
                     {#if form?.logId === id && form?.currentDiff}
-                      <pre>{@html DOMPurify.sanitize(
+                      <pre>{@html form.currentDiff
-                          // .replace takes escaped text representations of line breaks and converts them to real line breaks that render correctly in HTML
+                          .replace(/\\\"/g, '"')
-                          form.currentDiff.replace(/\\r\\n|\\n|\\r/g, "\n"),
+                          .replace(/\\r\\n|\\n|\\r/g, "\n")}</pre>
-                          {
-                            ALLOWED_TAGS: ["ins", "del"]
-                          }
-                        )}</pre>
                     {/if}
                   {/if}
 
                   {#if new_value && !old_value}
                     <h4>New value</h4>
-                    <pre>{DOMPurify.sanitize(newValue)}</pre>
+                    <pre>{newValue.replace(/\\\"/g, '"').replace(/\\r\\n|\\n|\\r/g, "\n")}</pre>
                   {/if}
 
                   {#if old_value && !new_value}
                     <h4>Old value</h4>
-                    <pre>{DOMPurify.sanitize(oldValue)}</pre>
+                    <pre>{oldValue.replace(/\\\"/g, '"').replace(/\\r\\n|\\n|\\r/g, "\n")}</pre>
                   {/if}
                 </Modal>
               </td>