From 02e9b442851bd9ac4cff556cb8093197728abe7e Mon Sep 17 00:00:00 2001
From: Peter <peterr.00000@gmail.com>
Date: Sun, 18 Jun 2023 15:29:10 +0800
Subject: [PATCH] v1.0

---
 .gitignore    |  1 +
 background.js | 19 +++++++++++++++++++
 manifest.json | 17 +++++++++++++++++
 3 files changed, 37 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 background.js
 create mode 100644 manifest.json

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..6f66c74
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+*.zip
\ No newline at end of file
diff --git a/background.js b/background.js
new file mode 100644
index 0000000..d082495
--- /dev/null
+++ b/background.js
@@ -0,0 +1,19 @@
+browser.webRequest.onBeforeRequest.addListener(
+  async (details) => {
+    const url = details.url;
+    const tabId = details.tabId;
+
+    const response = await fetch(url);
+    const html = await response.text();
+    const regex = /"name":"Datasheet","page_count":\d+,"url":"([^"]+)"/;
+    const match = html.match(regex);
+
+    if (match && match[1]) {
+      // use first match - it seems like octopart's html viewer can render
+      // multiple documents but i have not found an example of this.
+      browser.tabs.update(tabId, { url: match[1] });
+    }
+  },
+  { urls: ["https://octopart.com/datasheet/*"], types: ["main_frame"] },
+  ["blocking"]
+);
diff --git a/manifest.json b/manifest.json
new file mode 100644
index 0000000..92fb49f
--- /dev/null
+++ b/manifest.json
@@ -0,0 +1,17 @@
+{
+  "manifest_version": 2,
+  "name": "Redirect Octopart datasheets",
+  "version": "1.0",
+
+  "description": "View the original datasheet PDF in the browser's native PDF viewer instead of the Octopart's HTML PDF viewer.",
+
+  "background": {
+    "persistent": true,
+    "scripts": ["background.js"]
+  },
+  "permissions": [
+    "webRequest",
+    "webRequestBlocking",
+    "https://octopart.com/datasheet/*"
+  ]
+}