1 files changed, 80 insertions, 0 deletions
diff --git a/toolkit/xre/nsConsoleWriter.cpp b/toolkit/xre/nsConsoleWriter.cpp
new file mode 100644
index 0000000000..d89ea3bde3
--- /dev/null
+++ b/toolkit/xre/nsConsoleWriter.cpp
@@ -0,0 +1,80 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsAppRunner.h"
+
+#include "prio.h"
+#include "prprf.h"
+#include "prenv.h"
+
+#include "nsCRT.h"
+#include "nsNativeCharsetUtils.h"
+#include "nsString.h"
+#include "nsXREDirProvider.h"
+#include "nsXULAppAPI.h"
+
+#include "nsIConsoleService.h"
+#include "nsIConsoleMessage.h"
+
+void WriteConsoleLog() {
+  nsresult rv;
+
+  nsCOMPtr<nsIFile> lfile;
+
+  char* logFileEnv = PR_GetEnv("XRE_CONSOLE_LOG");
+  if (logFileEnv && *logFileEnv) {
+    rv = XRE_GetFileFromPath(logFileEnv, getter_AddRefs(lfile));
+    if (NS_FAILED(rv)) return;
+  } else {
+    if (!gLogConsoleErrors) return;
+
+    rv = nsXREDirProvider::GetUserAppDataDirectory(getter_AddRefs(lfile));
+    if (NS_FAILED(rv)) return;
+
+    lfile->AppendNative("console.log"_ns);
+  }
+
+  PRFileDesc* file;
+  rv = lfile->OpenNSPRFileDesc(PR_WRONLY | PR_APPEND | PR_CREATE_FILE, 0660,
+                               &file);
+  if (NS_FAILED(rv)) return;
+
+  nsCOMPtr<nsIConsoleService> csrv(do_GetService(NS_CONSOLESERVICE_CONTRACTID));
+  if (!csrv) {
+    PR_Close(file);
+    return;
+  }
+
+  nsTArray<RefPtr<nsIConsoleMessage>> messages;
+
+  rv = csrv->GetMessageArray(messages);
+  if (NS_FAILED(rv)) {
+    PR_Close(file);
+    return;
+  }
+
+  if (!messages.IsEmpty()) {
+    PRExplodedTime etime;
+    PR_ExplodeTime(PR_Now(), PR_LocalTimeParameters, &etime);
+    char datetime[512];
+    PR_FormatTimeUSEnglish(datetime, sizeof(datetime), "%Y-%m-%d %H:%M:%S",
+                           &etime);
+
+    PR_fprintf(file, NS_LINEBREAK "*** Console log: %s ***" NS_LINEBREAK,
+               datetime);
+  }
+
+  nsString msg;
+  nsAutoCString nativemsg;
+
+  for (auto& message : messages) {
+    rv = message->GetMessageMoz(msg);
+    if (NS_SUCCEEDED(rv)) {
+      NS_CopyUnicodeToNative(msg, nativemsg);
+      PR_fprintf(file, "%s" NS_LINEBREAK, nativemsg.get());
+    }
+  }
+
+  PR_Close(file);
+}