From 3abb8e28add1be2c2ec2f53a20bd105bde64a5b2 Mon Sep 17 00:00:00 2001
From: Moonchild <moonchild@palemoon.org>
Date: Sun, 15 Nov 2020 23:10:49 +0000
Subject: Revert "Issue #1684 - Remove global UA override preference and
 supporting code."

This reverts commit 18df01eb5498c954044f96c346026da0238d2e61.

Backed out for devtools breakage.
---
 netwerk/protocol/http/nsHttpHandler.cpp | 12 ++++++++++++
 netwerk/protocol/http/nsHttpHandler.h   |  1 +
 2 files changed, 13 insertions(+)

(limited to 'netwerk/protocol')

diff --git a/netwerk/protocol/http/nsHttpHandler.cpp b/netwerk/protocol/http/nsHttpHandler.cpp
index 0ae589151..7a29e041b 100644
--- a/netwerk/protocol/http/nsHttpHandler.cpp
+++ b/netwerk/protocol/http/nsHttpHandler.cpp
@@ -685,6 +685,11 @@ nsHttpHandler::BuildAppVersion()
 const nsAFlatCString &
 nsHttpHandler::UserAgent()
 {
+    if (mUserAgentOverride) {
+        LOG(("using general.useragent.override : %s\n", mUserAgentOverride.get()));
+        return mUserAgentOverride;
+    }
+
     if (mUserAgentIsDirty) {
         BuildUserAgent();
         mUserAgentIsDirty = false;
@@ -986,6 +991,13 @@ nsHttpHandler::PrefsChanged(nsIPrefBranch *prefs, const char *pref)
         mUserAgentIsDirty = true;
     }
 
+    // general.useragent.override
+    if (PREF_CHANGED(UA_PREF("override"))) {
+        prefs->GetCharPref(UA_PREF("override"),
+                           getter_Copies(mUserAgentOverride));
+        mUserAgentIsDirty = true;
+    }
+
     //
     // HTTP options
     //
diff --git a/netwerk/protocol/http/nsHttpHandler.h b/netwerk/protocol/http/nsHttpHandler.h
index 549b82205..4f632e078 100644
--- a/netwerk/protocol/http/nsHttpHandler.h
+++ b/netwerk/protocol/http/nsHttpHandler.h
@@ -506,6 +506,7 @@ private:
     nsCString      mDeviceModelId;
 
     nsCString      mUserAgent;
+    nsXPIDLCString mUserAgentOverride;
     bool           mUserAgentIsDirty; // true if mUserAgent should be rebuilt
     bool           mAcceptLanguagesIsDirty;
 
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