From ff444cbb21971098bf46192191282e8de74b64b2 Mon Sep 17 00:00:00 2001
From: bourgeoa <alain.bourgeois10@gmail.com>
Date: Tue, 9 Apr 2024 19:29:00 +0200
Subject: [PATCH] prep

---
 lib/handlers/get.js           |   5 +-
 lib/handlers/patch.js         |   1 +
 test/integration/prep-test.js | 131 ++++++++++++++++++++++++++++++++++
 3 files changed, 135 insertions(+), 2 deletions(-)
 create mode 100644 test/integration/prep-test.js

diff --git a/lib/handlers/get.js b/lib/handlers/get.js
index cdf06e42..04b5e3f5 100644
--- a/lib/handlers/get.js
+++ b/lib/handlers/get.js
@@ -136,11 +136,12 @@ async function handler (req, res, next) {
       res.statusCode = 206
     }
 
-    if (isRdf(contentType) && !res.sendEvents({
+    // PREP response
+    /* if (isRdf(contentType) && !res.sendEvents({
       config: { prep: '' },
       body: stream,
       headers
-    })) return
+    })) return */
     res.set(headers)
     return stream.pipe(res)
   }
diff --git a/lib/handlers/patch.js b/lib/handlers/patch.js
index d78cf6d8..307cac6f 100644
--- a/lib/handlers/patch.js
+++ b/lib/handlers/patch.js
@@ -96,6 +96,7 @@ async function patchHandler (req, res, next) {
 
     // Send the result to the client
     res.send(result)
+    // PREP response
     res.events.prep.trigger({
       generateNotifications: () => `\r\n${rfc822Template({ res })}`
     })
diff --git a/test/integration/prep-test.js b/test/integration/prep-test.js
new file mode 100644
index 00000000..2ea2d9f4
--- /dev/null
+++ b/test/integration/prep-test.js
@@ -0,0 +1,131 @@
+// Integration tests for PATCH with text/n3
+const { assert } = require('chai')
+const ldnode = require('../../index')
+const path = require('path')
+const supertest = require('supertest')
+const fs = require('fs')
+const { read, rm, backup, restore } = require('../utils')
+
+// Server settings
+const port = 7777
+const serverUri = `https://tim.localhost:${port}`
+const root = path.join(__dirname, '../resources/patch')
+const configPath = path.join(__dirname, '../resources/config')
+const serverOptions = {
+  root,
+  configPath,
+  serverUri,
+  multiuser: false,
+  webid: true,
+  sslKey: path.join(__dirname, '../keys/key.pem'),
+  sslCert: path.join(__dirname, '../keys/cert.pem'),
+  forceUser: `${serverUri}/profile/card#me`
+}
+
+describe('PATCH through text/n3', () => {
+  let request
+  let server
+
+  // Start the server
+  before(done => {
+    server = ldnode.createServer(serverOptions)
+    server.listen(port, done)
+    request = supertest(serverUri)
+  })
+
+  after(() => {
+    server.close()
+  })
+
+  describe('with a patch document', () => {
+    describe('on a resource with append-only access', describePatch({
+      path: '/append-only.ttl',
+      patch: `<> a solid:InsertDeletePatch;
+                 solid:inserts { <x> <y> <z>. }.`
+    }, { // expected:
+      status: 200,
+      text: 'Patch applied successfully',
+      result: '@prefix : </append-only.ttl#>.\n@prefix tim: </>.\n\ntim:a tim:b tim:c.\n\ntim:d tim:e tim:f.\n\ntim:x tim:y tim:z.\n\n'
+    }))
+
+    describe('on a resource with write-only access', describePatch({
+      path: '/write-only.ttl',
+      patch: `<> a solid:InsertDeletePatch;
+                 solid:inserts { <x> <y> <z>. }.`
+    }, { // expected:
+      status: 200,
+      text: 'Patch applied successfully',
+      result: '@prefix : </write-only.ttl#>.\n@prefix tim: </>.\n\ntim:a tim:b tim:c.\n\ntim:d tim:e tim:f.\n\ntim:x tim:y tim:z.\n\n'
+    }))
+  })
+
+  // Creates a PATCH test for the given resource with the given expected outcomes
+  function describePatch ({ path, exists = true, patch, contentType = 'text/n3' },
+    { status = 200, text, result }) {
+    return () => {
+      const filename = `patch${path}`
+      let originalContents
+      // Back up and restore an existing file
+      if (exists) {
+        before(() => backup(filename))
+        after(() => restore(filename))
+        // Store its contents to verify non-modification
+        if (!result) {
+          originalContents = read(filename)
+        }
+      // Ensure a non-existing file is removed
+      } else {
+        before(() => rm(filename))
+        after(() => rm(filename))
+      }
+
+      // Create the request and obtain the response
+      let response
+      before((done) => {
+        request.patch(path)
+          .set('Content-Type', contentType)
+          .send(`@prefix solid: <http://www.w3.org/ns/solid/terms#>.\n${patch}`)
+          .then(res => { response = res })
+          .then(done, done)
+      })
+
+      // Verify the response's status code and body text
+      it(`returns HTTP status code ${status}`, () => {
+        assert.isObject(response)
+        assert.equal(response.statusCode, status)
+      })
+      it(`has "${text}" in the response`, () => {
+        assert.isObject(response)
+        assert.include(response.text, text)
+      })
+
+      // For existing files, verify correct patch application
+      if (exists) {
+        if (result) {
+          it('patches the file correctly', () => {
+            assert.equal(read(filename), result)
+          })
+        } else {
+          it('does not modify the file', () => {
+            assert.equal(read(filename), originalContents)
+          })
+        }
+      // For non-existing files, verify creation and contents
+      } else {
+        if (result) {
+          it('creates the file', () => {
+            assert.isTrue(fs.existsSync(`${root}/${path}`))
+          })
+
+          it('writes the correct contents', () => {
+            assert.equal(read(filename), result)
+          })
+        } else {
+          it('does not create the file', () => {
+            assert.isFalse(fs.existsSync(`${root}/${path}`))
+          })
+        }
+      }
+    }
+  }
+})