1 files changed, 806 insertions, 0 deletions

diff --git a/comm/mailnews/base/src/nsSpamSettings.cpp b/comm/mailnews/base/src/nsSpamSettings.cpp
new file mode 100644
index 0000000000..61dc1e8f43
--- /dev/null
+++ b/comm/mailnews/base/src/nsSpamSettings.cpp
@@ -0,0 +1,806 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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 "nsSpamSettings.h"
+#include "nsIFile.h"
+#include "plstr.h"
+#include "prmem.h"
+#include "nsIMsgHdr.h"
+#include "nsNetUtil.h"
+#include "nsIMsgFolder.h"
+#include "nsMsgUtils.h"
+#include "nsMsgFolderFlags.h"
+#include "nsImapCore.h"
+#include "nsIImapIncomingServer.h"
+#include "nsAppDirectoryServiceDefs.h"
+#include "nsIPrefService.h"
+#include "nsIPrefBranch.h"
+#include "nsIStringBundle.h"
+#include "mozilla/Components.h"
+#include "mozilla/mailnews/MimeHeaderParser.h"
+#include "nsMailDirServiceDefs.h"
+#include "nsDirectoryServiceUtils.h"
+#include "nsDirectoryServiceDefs.h"
+#include "nsISimpleEnumerator.h"
+#include "nsIAbCard.h"
+#include "nsIAbManager.h"
+#include "nsIMsgAccountManager.h"
+#include "mozilla/intl/AppDateTimeFormat.h"
+
+using namespace mozilla::mailnews;
+
+nsSpamSettings::nsSpamSettings() {
+  mLevel = 0;
+  mMoveOnSpam = false;
+  mMoveTargetMode = nsISpamSettings::MOVE_TARGET_MODE_ACCOUNT;
+  mPurge = false;
+  mPurgeInterval = 14;  // 14 days
+
+  mServerFilterTrustFlags = 0;
+  mInhibitWhiteListingIdentityUser = false;
+  mInhibitWhiteListingIdentityDomain = false;
+  mUseWhiteList = false;
+  mUseServerFilter = false;
+
+  nsresult rv = NS_GetSpecialDirectory(NS_APP_USER_PROFILE_50_DIR,
+                                       getter_AddRefs(mLogFile));
+  if (NS_SUCCEEDED(rv)) mLogFile->Append(u"junklog.html"_ns);
+}
+
+nsSpamSettings::~nsSpamSettings() {}
+
+NS_IMPL_ISUPPORTS(nsSpamSettings, nsISpamSettings, nsIUrlListener)
+
+NS_IMETHODIMP
+nsSpamSettings::GetLevel(int32_t* aLevel) {
+  NS_ENSURE_ARG_POINTER(aLevel);
+  *aLevel = mLevel;
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsSpamSettings::SetLevel(int32_t aLevel) {
+  NS_ASSERTION((aLevel >= 0 && aLevel <= 100), "bad level");
+  mLevel = aLevel;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsSpamSettings::GetMoveTargetMode(int32_t* aMoveTargetMode) {
+  NS_ENSURE_ARG_POINTER(aMoveTargetMode);
+  *aMoveTargetMode = mMoveTargetMode;
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsSpamSettings::SetMoveTargetMode(int32_t aMoveTargetMode) {
+  NS_ASSERTION((aMoveTargetMode == nsISpamSettings::MOVE_TARGET_MODE_FOLDER ||
+                aMoveTargetMode == nsISpamSettings::MOVE_TARGET_MODE_ACCOUNT),
+               "bad move target mode");
+  mMoveTargetMode = aMoveTargetMode;
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsSpamSettings::GetManualMark(bool* aManualMark) {
+  NS_ENSURE_ARG_POINTER(aManualMark);
+  nsresult rv;
+  nsCOMPtr<nsIPrefBranch> prefBranch(
+      do_GetService(NS_PREFSERVICE_CONTRACTID, &rv));
+  NS_ENSURE_SUCCESS(rv, rv);
+  return prefBranch->GetBoolPref("mail.spam.manualMark", aManualMark);
+}
+
+NS_IMETHODIMP nsSpamSettings::GetManualMarkMode(int32_t* aManualMarkMode) {
+  NS_ENSURE_ARG_POINTER(aManualMarkMode);
+  nsresult rv;
+  nsCOMPtr<nsIPrefBranch> prefBranch(
+      do_GetService(NS_PREFSERVICE_CONTRACTID, &rv));
+  NS_ENSURE_SUCCESS(rv, rv);
+  return prefBranch->GetIntPref("mail.spam.manualMarkMode", aManualMarkMode);
+}
+
+NS_IMETHODIMP nsSpamSettings::GetLoggingEnabled(bool* aLoggingEnabled) {
+  NS_ENSURE_ARG_POINTER(aLoggingEnabled);
+  nsresult rv;
+  nsCOMPtr<nsIPrefBranch> prefBranch(
+      do_GetService(NS_PREFSERVICE_CONTRACTID, &rv));
+  NS_ENSURE_SUCCESS(rv, rv);
+  return prefBranch->GetBoolPref("mail.spam.logging.enabled", aLoggingEnabled);
+}
+
+NS_IMETHODIMP nsSpamSettings::GetMarkAsReadOnSpam(bool* aMarkAsReadOnSpam) {
+  NS_ENSURE_ARG_POINTER(aMarkAsReadOnSpam);
+  nsresult rv;
+  nsCOMPtr<nsIPrefBranch> prefBranch(
+      do_GetService(NS_PREFSERVICE_CONTRACTID, &rv));
+  NS_ENSURE_SUCCESS(rv, rv);
+  return prefBranch->GetBoolPref("mail.spam.markAsReadOnSpam",
+                                 aMarkAsReadOnSpam);
+}
+
+NS_IMPL_GETSET(nsSpamSettings, MoveOnSpam, bool, mMoveOnSpam)
+NS_IMPL_GETSET(nsSpamSettings, Purge, bool, mPurge)
+NS_IMPL_GETSET(nsSpamSettings, UseWhiteList, bool, mUseWhiteList)
+NS_IMPL_GETSET(nsSpamSettings, UseServerFilter, bool, mUseServerFilter)
+
+NS_IMETHODIMP nsSpamSettings::GetWhiteListAbURI(nsACString& aWhiteListAbURI) {
+  aWhiteListAbURI = mWhiteListAbURI;
+  return NS_OK;
+}
+NS_IMETHODIMP nsSpamSettings::SetWhiteListAbURI(
+    const nsACString& aWhiteListAbURI) {
+  mWhiteListAbURI = aWhiteListAbURI;
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsSpamSettings::GetActionTargetAccount(
+    nsACString& aActionTargetAccount) {
+  aActionTargetAccount = mActionTargetAccount;
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsSpamSettings::SetActionTargetAccount(
+    const nsACString& aActionTargetAccount) {
+  mActionTargetAccount = aActionTargetAccount;
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsSpamSettings::GetActionTargetFolder(
+    nsACString& aActionTargetFolder) {
+  aActionTargetFolder = mActionTargetFolder;
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsSpamSettings::SetActionTargetFolder(
+    const nsACString& aActionTargetFolder) {
+  mActionTargetFolder = aActionTargetFolder;
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsSpamSettings::GetPurgeInterval(int32_t* aPurgeInterval) {
+  NS_ENSURE_ARG_POINTER(aPurgeInterval);
+  *aPurgeInterval = mPurgeInterval;
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsSpamSettings::SetPurgeInterval(int32_t aPurgeInterval) {
+  NS_ASSERTION(aPurgeInterval >= 0, "bad purge interval");
+  mPurgeInterval = aPurgeInterval;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsSpamSettings::SetLogStream(nsIOutputStream* aLogStream) {
+  // if there is a log stream already, close it
+  if (mLogStream) {
+    // will flush
+    nsresult rv = mLogStream->Close();
+    NS_ENSURE_SUCCESS(rv, rv);
+  }
+
+  mLogStream = aLogStream;
+  return NS_OK;
+}
+
+#define LOG_HEADER                                                     \
+  "<!DOCTYPE html>\n<html>\n<head>\n<meta charset=\"UTF-8\">\n<style " \
+  "type=\"text/css\">body{font-family:Consolas,\"Lucida "              \
+  "Console\",Monaco,\"Courier "                                        \
+  "New\",Courier,monospace;font-size:small}</style>\n</head>\n<body>\n"
+#define LOG_HEADER_LEN (strlen(LOG_HEADER))
+
+NS_IMETHODIMP
+nsSpamSettings::GetLogStream(nsIOutputStream** aLogStream) {
+  NS_ENSURE_ARG_POINTER(aLogStream);
+
+  nsresult rv;
+
+  if (!mLogStream) {
+    // append to the end of the log file
+    rv = MsgNewBufferedFileOutputStream(getter_AddRefs(mLogStream), mLogFile,
+                                        PR_CREATE_FILE | PR_WRONLY | PR_APPEND,
+                                        0600);
+    NS_ENSURE_SUCCESS(rv, rv);
+
+    int64_t fileSize;
+    rv = mLogFile->GetFileSize(&fileSize);
+    NS_ENSURE_SUCCESS(rv, rv);
+
+    // write the header at the start
+    if (fileSize == 0) {
+      uint32_t writeCount;
+
+      rv = mLogStream->Write(LOG_HEADER, LOG_HEADER_LEN, &writeCount);
+      NS_ENSURE_SUCCESS(rv, rv);
+      NS_ASSERTION(writeCount == LOG_HEADER_LEN,
+                   "failed to write out log header");
+    }
+  }
+
+  NS_ADDREF(*aLogStream = mLogStream);
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsSpamSettings::Initialize(nsIMsgIncomingServer* aServer) {
+  NS_ENSURE_ARG_POINTER(aServer);
+  nsresult rv;
+  int32_t spamLevel;
+  rv = aServer->GetIntValue("spamLevel", &spamLevel);
+  NS_ENSURE_SUCCESS(rv, rv);
+  rv = SetLevel(spamLevel);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  bool moveOnSpam;
+  rv = aServer->GetBoolValue("moveOnSpam", &moveOnSpam);
+  NS_ENSURE_SUCCESS(rv, rv);
+  rv = SetMoveOnSpam(moveOnSpam);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  int32_t moveTargetMode;
+  rv = aServer->GetIntValue("moveTargetMode", &moveTargetMode);
+  NS_ENSURE_SUCCESS(rv, rv);
+  rv = SetMoveTargetMode(moveTargetMode);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  nsCString spamActionTargetAccount;
+  rv =
+      aServer->GetCharValue("spamActionTargetAccount", spamActionTargetAccount);
+  NS_ENSURE_SUCCESS(rv, rv);
+  rv = SetActionTargetAccount(spamActionTargetAccount);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  nsString spamActionTargetFolder;
+  rv = aServer->GetUnicharValue("spamActionTargetFolder",
+                                spamActionTargetFolder);
+  NS_ENSURE_SUCCESS(rv, rv);
+  rv = SetActionTargetFolder(NS_ConvertUTF16toUTF8(spamActionTargetFolder));
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  bool useWhiteList;
+  rv = aServer->GetBoolValue("useWhiteList", &useWhiteList);
+  NS_ENSURE_SUCCESS(rv, rv);
+  rv = SetUseWhiteList(useWhiteList);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  nsCString whiteListAbURI;
+  rv = aServer->GetCharValue("whiteListAbURI", whiteListAbURI);
+  NS_ENSURE_SUCCESS(rv, rv);
+  rv = SetWhiteListAbURI(whiteListAbURI);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  bool purgeSpam;
+  rv = aServer->GetBoolValue("purgeSpam", &purgeSpam);
+  NS_ENSURE_SUCCESS(rv, rv);
+  rv = SetPurge(purgeSpam);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  int32_t purgeSpamInterval;
+  rv = aServer->GetIntValue("purgeSpamInterval", &purgeSpamInterval);
+  NS_ENSURE_SUCCESS(rv, rv);
+  rv = SetPurgeInterval(purgeSpamInterval);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  bool useServerFilter;
+  rv = aServer->GetBoolValue("useServerFilter", &useServerFilter);
+  NS_ENSURE_SUCCESS(rv, rv);
+  rv = SetUseServerFilter(useServerFilter);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  nsCString serverFilterName;
+  rv = aServer->GetCharValue("serverFilterName", serverFilterName);
+  if (NS_SUCCEEDED(rv)) SetServerFilterName(serverFilterName);
+  int32_t serverFilterTrustFlags = 0;
+  rv = aServer->GetIntValue("serverFilterTrustFlags", &serverFilterTrustFlags);
+  NS_ENSURE_SUCCESS(rv, rv);
+  rv = SetServerFilterTrustFlags(serverFilterTrustFlags);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  nsCOMPtr<nsIPrefBranch> prefBranch(
+      do_GetService(NS_PREFSERVICE_CONTRACTID, &rv));
+  if (prefBranch)
+    prefBranch->GetCharPref("mail.trusteddomains", mTrustedMailDomains);
+
+  mWhiteListDirArray.Clear();
+  if (!mWhiteListAbURI.IsEmpty()) {
+    nsCOMPtr<nsIAbManager> abManager(
+        do_GetService("@mozilla.org/abmanager;1", &rv));
+    NS_ENSURE_SUCCESS(rv, rv);
+
+    nsTArray<nsCString> whiteListArray;
+    ParseString(mWhiteListAbURI, ' ', whiteListArray);
+
+    for (uint32_t index = 0; index < whiteListArray.Length(); index++) {
+      nsCOMPtr<nsIAbDirectory> directory;
+      rv = abManager->GetDirectory(whiteListArray[index],
+                                   getter_AddRefs(directory));
+      NS_ENSURE_SUCCESS(rv, rv);
+
+      if (directory) mWhiteListDirArray.AppendObject(directory);
+    }
+  }
+
+  // the next two preferences affect whether we try to whitelist our own
+  // address or domain. Spammers send emails with spoofed from address matching
+  // either the email address of the recipient, or the recipient's domain,
+  // hoping to get whitelisted.
+  //
+  // The terms to describe this get wrapped up in chains of negatives. A full
+  // definition of the boolean inhibitWhiteListingIdentityUser is "Suppress
+  // address book whitelisting if the sender matches an identity's email
+  // address"
+
+  rv = aServer->GetBoolValue("inhibitWhiteListingIdentityUser",
+                             &mInhibitWhiteListingIdentityUser);
+  NS_ENSURE_SUCCESS(rv, rv);
+  rv = aServer->GetBoolValue("inhibitWhiteListingIdentityDomain",
+                             &mInhibitWhiteListingIdentityDomain);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  // collect lists of identity users if needed
+  if (mInhibitWhiteListingIdentityDomain || mInhibitWhiteListingIdentityUser) {
+    nsCOMPtr<nsIMsgAccountManager> accountManager(
+        do_GetService("@mozilla.org/messenger/account-manager;1", &rv));
+    NS_ENSURE_SUCCESS(rv, rv);
+
+    nsCOMPtr<nsIMsgAccount> account;
+    rv = accountManager->FindAccountForServer(aServer, getter_AddRefs(account));
+    NS_ENSURE_SUCCESS(rv, rv);
+
+    nsAutoCString accountKey;
+    if (account) account->GetKey(accountKey);
+
+    // Loop through all accounts, adding emails from this account, as well as
+    // from any accounts that defer to this account.
+    mEmails.Clear();
+    nsTArray<RefPtr<nsIMsgAccount>> accounts;
+    // No sense scanning accounts if we've nothing to match.
+    if (account) {
+      rv = accountManager->GetAccounts(accounts);
+      NS_ENSURE_SUCCESS(rv, rv);
+    }
+
+    for (auto loopAccount : accounts) {
+      if (!loopAccount) continue;
+      nsAutoCString loopAccountKey;
+      loopAccount->GetKey(loopAccountKey);
+      nsCOMPtr<nsIMsgIncomingServer> loopServer;
+      loopAccount->GetIncomingServer(getter_AddRefs(loopServer));
+      nsAutoCString deferredToAccountKey;
+      if (loopServer)
+        loopServer->GetCharValue("deferred_to_account", deferredToAccountKey);
+
+      // Add the emails for any account that defers to this one, or for the
+      // account itself.
+      if (accountKey.Equals(deferredToAccountKey) ||
+          accountKey.Equals(loopAccountKey)) {
+        nsTArray<RefPtr<nsIMsgIdentity>> identities;
+        loopAccount->GetIdentities(identities);
+        for (auto identity : identities) {
+          nsAutoCString email;
+          identity->GetEmail(email);
+          if (!email.IsEmpty()) mEmails.AppendElement(email);
+        }
+      }
+    }
+  }
+
+  return UpdateJunkFolderState();
+}
+
+nsresult nsSpamSettings::UpdateJunkFolderState() {
+  nsresult rv;
+
+  // if the spam folder uri changed on us, we need to unset the junk flag
+  // on the old spam folder
+  nsCString newJunkFolderURI;
+  rv = GetSpamFolderURI(newJunkFolderURI);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  if (!mCurrentJunkFolderURI.IsEmpty() &&
+      !mCurrentJunkFolderURI.Equals(newJunkFolderURI)) {
+    nsCOMPtr<nsIMsgFolder> oldJunkFolder;
+    rv = FindFolder(mCurrentJunkFolderURI, getter_AddRefs(oldJunkFolder));
+    NS_ENSURE_SUCCESS(rv, rv);
+    if (oldJunkFolder) {
+      // remove the nsMsgFolderFlags::Junk on the old junk folder
+      // XXX TODO
+      // JUNK MAIL RELATED
+      // (in ClearFlag?) we need to make sure that this folder
+      // is not the junk folder for another account
+      // the same goes for set flag.  have fun with all that.
+      oldJunkFolder->ClearFlag(nsMsgFolderFlags::Junk);
+    }
+  }
+
+  mCurrentJunkFolderURI = newJunkFolderURI;
+
+  // only try to create the junk folder if we are moving junk
+  // and we have a non-empty uri
+  if (mMoveOnSpam && !mCurrentJunkFolderURI.IsEmpty()) {
+    // as the url listener, the spam settings will set the
+    // nsMsgFolderFlags::Junk folder flag on the junk mail folder, after it is
+    // created
+    rv = GetOrCreateJunkFolder(mCurrentJunkFolderURI, this);
+  }
+
+  return rv;
+}
+
+NS_IMETHODIMP nsSpamSettings::Clone(nsISpamSettings* aSpamSettings) {
+  NS_ENSURE_ARG_POINTER(aSpamSettings);
+
+  nsresult rv = aSpamSettings->GetUseWhiteList(&mUseWhiteList);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  (void)aSpamSettings->GetMoveOnSpam(&mMoveOnSpam);
+  (void)aSpamSettings->GetPurge(&mPurge);
+  (void)aSpamSettings->GetUseServerFilter(&mUseServerFilter);
+
+  rv = aSpamSettings->GetPurgeInterval(&mPurgeInterval);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  rv = aSpamSettings->GetLevel(&mLevel);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  rv = aSpamSettings->GetMoveTargetMode(&mMoveTargetMode);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  nsCString actionTargetAccount;
+  rv = aSpamSettings->GetActionTargetAccount(actionTargetAccount);
+  NS_ENSURE_SUCCESS(rv, rv);
+  mActionTargetAccount = actionTargetAccount;
+
+  nsCString actionTargetFolder;
+  rv = aSpamSettings->GetActionTargetFolder(actionTargetFolder);
+  NS_ENSURE_SUCCESS(rv, rv);
+  mActionTargetFolder = actionTargetFolder;
+
+  nsCString whiteListAbURI;
+  rv = aSpamSettings->GetWhiteListAbURI(whiteListAbURI);
+  NS_ENSURE_SUCCESS(rv, rv);
+  mWhiteListAbURI = whiteListAbURI;
+
+  aSpamSettings->GetServerFilterName(mServerFilterName);
+  aSpamSettings->GetServerFilterTrustFlags(&mServerFilterTrustFlags);
+
+  return rv;
+}
+
+NS_IMETHODIMP nsSpamSettings::GetSpamFolderURI(nsACString& aSpamFolderURI) {
+  if (mMoveTargetMode == nsISpamSettings::MOVE_TARGET_MODE_FOLDER)
+    return GetActionTargetFolder(aSpamFolderURI);
+
+  // if the mode is nsISpamSettings::MOVE_TARGET_MODE_ACCOUNT
+  // the spam folder URI = account uri + "/Junk"
+  nsCString folderURI;
+  nsresult rv = GetActionTargetAccount(folderURI);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  // we might be trying to get the old spam folder uri
+  // in order to clear the flag
+  // if we didn't have one, bail out.
+  if (folderURI.IsEmpty()) return NS_OK;
+
+  nsCOMPtr<nsIMsgFolder> folder;
+  rv = GetOrCreateFolder(folderURI, getter_AddRefs(folder));
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  nsCOMPtr<nsIMsgIncomingServer> server;
+  rv = folder->GetServer(getter_AddRefs(server));
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  // see nsMsgFolder::SetPrettyName() for where the pretty name is set.
+
+  // Check for an existing junk folder - this will do a case-insensitive
+  // search by URI - if we find a junk folder, use its URI.
+  nsCOMPtr<nsIMsgFolder> junkFolder;
+  folderURI.AppendLiteral("/Junk");
+  if (NS_SUCCEEDED(server->GetMsgFolderFromURI(nullptr, folderURI,
+                                               getter_AddRefs(junkFolder))) &&
+      junkFolder)
+    junkFolder->GetURI(folderURI);
+
+  // XXX todo
+  // better not to make base depend in imap
+  // but doing it here, like in nsMsgCopy.cpp
+  // one day, we'll fix this (and nsMsgCopy.cpp) to use GetMsgFolderFromURI()
+  nsCOMPtr<nsIImapIncomingServer> imapServer = do_QueryInterface(server);
+  if (imapServer) {
+    // Make sure an specific IMAP folder has correct personal namespace
+    // see bug #197043
+    nsCString folderUriWithNamespace;
+    (void)imapServer->GetUriWithNamespacePrefixIfNecessary(
+        kPersonalNamespace, folderURI, folderUriWithNamespace);
+    if (!folderUriWithNamespace.IsEmpty()) folderURI = folderUriWithNamespace;
+  }
+
+  aSpamFolderURI = folderURI;
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsSpamSettings::GetServerFilterName(nsACString& aFilterName) {
+  aFilterName = mServerFilterName;
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsSpamSettings::SetServerFilterName(
+    const nsACString& aFilterName) {
+  mServerFilterName = aFilterName;
+  mServerFilterFile = nullptr;  // clear out our stored location value
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsSpamSettings::GetServerFilterFile(nsIFile** aFile) {
+  NS_ENSURE_ARG_POINTER(aFile);
+  if (!mServerFilterFile) {
+    nsresult rv;
+    nsAutoCString serverFilterFileName;
+    GetServerFilterName(serverFilterFileName);
+    serverFilterFileName.AppendLiteral(".sfd");
+
+    nsCOMPtr<nsIProperties> dirSvc =
+        do_GetService(NS_DIRECTORY_SERVICE_CONTRACTID, &rv);
+    NS_ENSURE_SUCCESS(rv, rv);
+
+    // Walk through the list of isp directories
+    nsCOMPtr<nsISimpleEnumerator> ispDirectories;
+    rv = dirSvc->Get(ISP_DIRECTORY_LIST, NS_GET_IID(nsISimpleEnumerator),
+                     getter_AddRefs(ispDirectories));
+    NS_ENSURE_SUCCESS(rv, rv);
+
+    bool hasMore;
+    nsCOMPtr<nsIFile> file;
+    while (NS_SUCCEEDED(ispDirectories->HasMoreElements(&hasMore)) && hasMore) {
+      nsCOMPtr<nsISupports> elem;
+      ispDirectories->GetNext(getter_AddRefs(elem));
+      file = do_QueryInterface(elem);
+
+      if (file) {
+        // append our desired leaf name then test to see if the file exists. If
+        // it does, we've found mServerFilterFile.
+        file->AppendNative(serverFilterFileName);
+        bool exists;
+        if (NS_SUCCEEDED(file->Exists(&exists)) && exists) {
+          file.swap(mServerFilterFile);
+          break;
+        }
+      }  // if file
+    }    // until we find the location of mServerFilterName
+  }      // if we haven't already stored mServerFilterFile
+
+  NS_IF_ADDREF(*aFile = mServerFilterFile);
+  return NS_OK;
+}
+
+NS_IMPL_GETSET(nsSpamSettings, ServerFilterTrustFlags, int32_t,
+               mServerFilterTrustFlags)
+
+#define LOG_ENTRY_START_TAG "<p>\n"
+#define LOG_ENTRY_START_TAG_LEN (strlen(LOG_ENTRY_START_TAG))
+#define LOG_ENTRY_END_TAG "</p>\n"
+#define LOG_ENTRY_END_TAG_LEN (strlen(LOG_ENTRY_END_TAG))
+// Does this need to be localizable?
+#define LOG_ENTRY_TIMESTAMP "[$S] "
+
+NS_IMETHODIMP nsSpamSettings::LogJunkHit(nsIMsgDBHdr* aMsgHdr,
+                                         bool aMoveMessage) {
+  bool loggingEnabled;
+  nsresult rv = GetLoggingEnabled(&loggingEnabled);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  if (!loggingEnabled) return NS_OK;
+
+  PRTime date;
+
+  nsString authorValue;
+  nsString subjectValue;
+  nsString dateValue;
+
+  (void)aMsgHdr->GetDate(&date);
+  PRExplodedTime exploded;
+  PR_ExplodeTime(date, PR_LocalTimeParameters, &exploded);
+
+  mozilla::intl::DateTimeFormat::StyleBag style;
+  style.date = mozilla::Some(mozilla::intl::DateTimeFormat::Style::Short);
+  style.time = mozilla::Some(mozilla::intl::DateTimeFormat::Style::Long);
+  mozilla::intl::AppDateTimeFormat::Format(style, &exploded, dateValue);
+
+  (void)aMsgHdr->GetMime2DecodedAuthor(authorValue);
+  (void)aMsgHdr->GetMime2DecodedSubject(subjectValue);
+
+  nsCString buffer;
+  // this is big enough to hold a log entry.
+  // do this so we avoid growing and copying as we append to the log.
+  buffer.SetCapacity(512);
+
+  nsCOMPtr<nsIStringBundleService> bundleService =
+      mozilla::components::StringBundle::Service();
+  NS_ENSURE_TRUE(bundleService, NS_ERROR_UNEXPECTED);
+
+  nsCOMPtr<nsIStringBundle> bundle;
+  rv = bundleService->CreateBundle(
+      "chrome://messenger/locale/filter.properties", getter_AddRefs(bundle));
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  AutoTArray<nsString, 3> junkLogDetectFormatStrings = {
+      authorValue, subjectValue, dateValue};
+  nsString junkLogDetectStr;
+  rv = bundle->FormatStringFromName(
+      "junkLogDetectStr", junkLogDetectFormatStrings, junkLogDetectStr);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  buffer += NS_ConvertUTF16toUTF8(junkLogDetectStr);
+  buffer += "\n";
+
+  if (aMoveMessage) {
+    nsCString msgId;
+    aMsgHdr->GetMessageId(getter_Copies(msgId));
+
+    nsCString junkFolderURI;
+    rv = GetSpamFolderURI(junkFolderURI);
+    NS_ENSURE_SUCCESS(rv, rv);
+
+    AutoTArray<nsString, 2> logMoveFormatStrings;
+    CopyASCIItoUTF16(msgId, *logMoveFormatStrings.AppendElement());
+    CopyASCIItoUTF16(junkFolderURI, *logMoveFormatStrings.AppendElement());
+    nsString logMoveStr;
+    rv = bundle->FormatStringFromName("logMoveStr", logMoveFormatStrings,
+                                      logMoveStr);
+    NS_ENSURE_SUCCESS(rv, rv);
+
+    buffer += NS_ConvertUTF16toUTF8(logMoveStr);
+    buffer += "\n";
+  }
+
+  return LogJunkString(buffer.get());
+}
+
+NS_IMETHODIMP nsSpamSettings::LogJunkString(const char* string) {
+  bool loggingEnabled;
+  nsresult rv = GetLoggingEnabled(&loggingEnabled);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  if (!loggingEnabled) return NS_OK;
+
+  nsString dateValue;
+  PRExplodedTime exploded;
+  PR_ExplodeTime(PR_Now(), PR_LocalTimeParameters, &exploded);
+
+  mozilla::intl::DateTimeFormat::StyleBag style;
+  style.date = mozilla::Some(mozilla::intl::DateTimeFormat::Style::Short);
+  style.time = mozilla::Some(mozilla::intl::DateTimeFormat::Style::Long);
+  mozilla::intl::AppDateTimeFormat::Format(style, &exploded, dateValue);
+
+  nsCString timestampString(LOG_ENTRY_TIMESTAMP);
+  timestampString.ReplaceSubstring("$S",
+                                   NS_ConvertUTF16toUTF8(dateValue).get());
+
+  nsCOMPtr<nsIOutputStream> logStream;
+  rv = GetLogStream(getter_AddRefs(logStream));
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  uint32_t writeCount;
+
+  rv = logStream->Write(LOG_ENTRY_START_TAG, LOG_ENTRY_START_TAG_LEN,
+                        &writeCount);
+  NS_ENSURE_SUCCESS(rv, rv);
+  NS_ASSERTION(writeCount == LOG_ENTRY_START_TAG_LEN,
+               "failed to write out start log tag");
+
+  rv = logStream->Write(timestampString.get(), timestampString.Length(),
+                        &writeCount);
+  NS_ENSURE_SUCCESS(rv, rv);
+  NS_ASSERTION(writeCount == timestampString.Length(),
+               "failed to write out timestamp");
+
+  // HTML-escape the log for security reasons.
+  // We don't want someone to send us a message with a subject with
+  // HTML tags, especially <script>.
+  nsCString escapedBuffer;
+  nsAppendEscapedHTML(nsDependentCString(string), escapedBuffer);
+
+  uint32_t escapedBufferLen = escapedBuffer.Length();
+  rv = logStream->Write(escapedBuffer.get(), escapedBufferLen, &writeCount);
+  NS_ENSURE_SUCCESS(rv, rv);
+  NS_ASSERTION(writeCount == escapedBufferLen, "failed to write out log hit");
+
+  rv = logStream->Write(LOG_ENTRY_END_TAG, LOG_ENTRY_END_TAG_LEN, &writeCount);
+  NS_ENSURE_SUCCESS(rv, rv);
+  NS_ASSERTION(writeCount == LOG_ENTRY_END_TAG_LEN,
+               "failed to write out end log tag");
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsSpamSettings::OnStartRunningUrl(nsIURI* aURL) {
+  // do nothing
+  // all the action happens in OnStopRunningUrl()
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsSpamSettings::OnStopRunningUrl(nsIURI* aURL,
+                                               nsresult exitCode) {
+  nsCString junkFolderURI;
+  nsresult rv = GetSpamFolderURI(junkFolderURI);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  if (junkFolderURI.IsEmpty()) return NS_ERROR_UNEXPECTED;
+
+  // when we get here, the folder should exist.
+  nsCOMPtr<nsIMsgFolder> junkFolder;
+  rv = GetExistingFolder(junkFolderURI, getter_AddRefs(junkFolder));
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  rv = junkFolder->SetFlag(nsMsgFolderFlags::Junk);
+  NS_ENSURE_SUCCESS(rv, rv);
+  return rv;
+}
+
+NS_IMETHODIMP nsSpamSettings::CheckWhiteList(nsIMsgDBHdr* aMsgHdr,
+                                             bool* aResult) {
+  NS_ENSURE_ARG_POINTER(aMsgHdr);
+  NS_ENSURE_ARG_POINTER(aResult);
+  *aResult = false;  // default in case of error or no whitelisting
+
+  if (!mUseWhiteList ||
+      (!mWhiteListDirArray.Count() && mTrustedMailDomains.IsEmpty()))
+    return NS_OK;
+
+  // do per-message processing
+
+  nsCString author;
+  aMsgHdr->GetAuthor(getter_Copies(author));
+
+  nsAutoCString authorEmailAddress;
+  ExtractEmail(EncodedHeader(author), authorEmailAddress);
+
+  if (authorEmailAddress.IsEmpty()) return NS_OK;
+
+  // should we skip whitelisting for the identity email?
+  if (mInhibitWhiteListingIdentityUser) {
+    for (uint32_t i = 0; i < mEmails.Length(); ++i) {
+      if (mEmails[i].Equals(authorEmailAddress,
+                            nsCaseInsensitiveCStringComparator))
+        return NS_OK;
+    }
+  }
+
+  if (!mTrustedMailDomains.IsEmpty() || mInhibitWhiteListingIdentityDomain) {
+    nsAutoCString domain;
+    int32_t atPos = authorEmailAddress.FindChar('@');
+    if (atPos >= 0) domain = Substring(authorEmailAddress, atPos + 1);
+    if (!domain.IsEmpty()) {
+      if (!mTrustedMailDomains.IsEmpty() &&
+          MsgHostDomainIsTrusted(domain, mTrustedMailDomains)) {
+        *aResult = true;
+        return NS_OK;
+      }
+
+      if (mInhibitWhiteListingIdentityDomain) {
+        for (uint32_t i = 0; i < mEmails.Length(); ++i) {
+          nsAutoCString identityDomain;
+          int32_t atPos = mEmails[i].FindChar('@');
+          if (atPos >= 0) {
+            identityDomain = Substring(mEmails[i], atPos + 1);
+            if (identityDomain.Equals(domain,
+                                      nsCaseInsensitiveCStringComparator))
+              return NS_OK;  // don't whitelist
+          }
+        }
+      }
+    }
+  }
+
+  if (mWhiteListDirArray.Count()) {
+    nsCOMPtr<nsIAbCard> cardForAddress;
+    for (int32_t index = 0;
+         index < mWhiteListDirArray.Count() && !cardForAddress; index++) {
+      mWhiteListDirArray[index]->CardForEmailAddress(
+          authorEmailAddress, getter_AddRefs(cardForAddress));
+    }
+    if (cardForAddress) {
+      *aResult = true;
+      return NS_OK;
+    }
+  }
+  return NS_OK;  // default return is false
+}