public ImapMailbox Add(ImapMailbox mailbox)
{
mailbox.AttachToSession(session);
mailboxes[mailbox.Name] = mailbox;
return mailbox;
}
private static async Task ProcessChallengeAsync(ImapEnvelope envelope, ImapMailbox mailbox)
{
var bytes = await mailbox.FetchMessageBodyAsync(envelope.Uid);
var message = new MailMessageReader(bytes);
var token = string.Empty;
var nonce = string.Empty;
var publicKey = string.Empty;
const string pattern = @"\s|\t|\n|\r";
var xHeaders = message.Headers.UnknownHeaders;
for (var i = 0; i < xHeaders.Keys.Count; i++)
{
var key = xHeaders.Keys[i];
var values = xHeaders.GetValues(i);
if (values == null)
{
throw new NullReferenceException(Resources.ChallengeCorruptException);
}
if (string.Compare(key, ParanoiaHeaderKeys.Token, StringComparison.InvariantCultureIgnoreCase) == 0)
{
token = values.FirstOrDefault() ?? string.Empty;
token = Regex.Replace(token, pattern, string.Empty);
continue;
}
if (string.Compare(key, ParanoiaHeaderKeys.Nonce, StringComparison.InvariantCultureIgnoreCase) == 0)
{
nonce = values.FirstOrDefault() ?? string.Empty;
nonce = Regex.Replace(nonce, pattern, string.Empty);
continue;
}
if (string.Compare(key, ParanoiaHeaderKeys.PublicKey, StringComparison.InvariantCultureIgnoreCase) == 0)
{
publicKey = values.FirstOrDefault() ?? string.Empty;
publicKey = Regex.Replace(publicKey, pattern, string.Empty);
}
}
if (string.IsNullOrEmpty(token) || string.IsNullOrEmpty(nonce) || string.IsNullOrEmpty(publicKey))
{
throw new InvalidDataException(Resources.ChallengeCorruptException);
}
var data = App.Context.KeyContainer.DecryptWithPrivateKey(
Convert.FromBase64String(token),
Convert.FromBase64String(publicKey),
Convert.FromBase64String(nonce));
await RespondToChallengeAsync(Encoding.UTF8.GetString(data));
}
internal async Task <List <ImapMailboxInfo> > ListSubscribedMailboxesAsync(string pattern = "")
{
using (var connection = new ImapConnection {
Security = ImapSecurity
}) {
connection.RemoteCertificateValidationFailed += (sender, e) => e.IsCanceled = false;
using (var auth = await connection.ConnectAsync(ImapHost, ImapPort)) {
using (var session = await auth.LoginAsync(ImapUsername, ImapPassword)) {
var wildcard = string.IsNullOrEmpty(pattern) ? "%" : pattern;
return(await session.LSubAsync("", ImapMailbox.EncodeName(wildcard)));
}
}
}
}
public bool ExistChildrenOf(ImapMailbox mailbox)
{
if (mailbox.Flags.Has(ImapMailboxFlag.HasChildren))
return true;
if (string.IsNullOrEmpty(mailbox.HierarchyDelimiter))
// mailbox has no hierarchy
return false;
var inferiorNamePrefix = mailbox.Name + mailbox.HierarchyDelimiter;
foreach (var mailboxName in mailboxes.Keys) {
if (mailboxName.StartsWith(inferiorNamePrefix, StringComparison.Ordinal))
return true;
}
return false;
}
private async Task <IEnumerable <MailMessageModel> > SyncNonChallengesAsync(ImapMailbox mailbox, long uid)
{
var criteria = string.Format("{0}:* NOT HEADER \"{1}\" \"{2}\"", uid, ParanoiaHeaderKeys.Type, MailType.Challenge);
var uids = await mailbox.SearchAsync(criteria);
if (!uids.Any())
{
return(new MailMessageModel[0]);
}
FetchedEnvelopeCount = 0;
TotalEnvelopeCount = uids.Count;
mailbox.EnvelopeFetched += OnEnvelopeFetched;
var envelopes = (await mailbox.FetchEnvelopesAsync(uids)).ToArray();
if (envelopes.Length == 0)
{
return(new MailMessageModel[0]);
}
mailbox.EnvelopeFetched -= OnEnvelopeFetched;
if (envelopes.Length == 1 && envelopes.First().Uid == uid)
{
return(new MailMessageModel[0]);
}
var messages = new List <MailMessageModel>();
foreach (var envelope in envelopes)
{
try {
var message = envelope.ToMailMessage(MailType.Message);
messages.Add(message);
} catch (Exception ex) {
Logger.Error(ex);
}
}
return(messages);
}
private void TransitStateTo(ImapSessionState newState)
{
if (newState == state)
return;
switch (newState) {
case ImapSessionState.NotConnected:
authority = null;
selectedMailbox = null;
if (mailboxManager != null) {
mailboxManager.DetachFromSession();
mailboxManager = null;
}
TraceInfo("now in non-connected state");
break;
case ImapSessionState.NotAuthenticated:
UpdateAuthority(null, null);
if (state == ImapSessionState.Selected || state == ImapSessionState.Authenticated) {
mailboxManager.DetachFromSession();
mailboxManager = null;
TraceInfo("logged out");
}
TraceInfo("now in non-authenticated state");
break;
case ImapSessionState.Authenticated:
TraceInfo("now in authenticated state");
if (state == ImapSessionState.NotAuthenticated || state == ImapSessionState.NotConnected) {
mailboxManager = new ImapMailboxManager(this);
TraceInfo("logged in");
}
break;
case ImapSessionState.Selected:
TraceInfo("now in selected state (selected '{0}')", selectedMailbox.Name);
break;
}
state = newState;
}
/// <summary>sends extended LIST command</summary>
/// <remarks>valid in authenticated state</remarks>
public ImapCommandResult ListExtended(string mailboxNamePattern,
ImapListSelectionOptions selectionOptions,
ImapListReturnOptions returnOptions,
out ImapMailbox[] mailboxes)
{
if (selectionOptions == null)
throw new ArgumentNullException("selectionOptions");
if (returnOptions == null)
throw new ArgumentNullException("returnOptions");
return ListExtendedInternalNoRefName(mailboxNamePattern, null, selectionOptions, returnOptions, out mailboxes);
}
/// <summary>sends extended LIST command</summary>
/// <remarks>valid in authenticated state</remarks>
public ImapCommandResult ListExtended(string mailboxNamePattern,
out ImapMailbox[] mailboxes)
{
return ListExtendedInternalNoRefName(mailboxNamePattern, null, null, null, out mailboxes);
}
/// <summary>sends RENAME command</summary>
/// <remarks>valid in authenticated state</remarks>
public ImapCommandResult Rename(ImapMailbox existingMailbox, string newMailboxName)
{
ValidateMailboxRelationship(existingMailbox);
ImapMailbox discard;
return Rename(existingMailbox.Name, newMailboxName, out discard);
}
/// <summary>sends GETMETADATA command</summary>
/// <remarks>
/// valid in authenticated/selected state.
/// this method will fail if server does not support METADATA extension.
/// </remarks>
public ImapCommandResult GetMetadata(ImapMailbox mailbox, string[] entrySpecifiers, ImapGetMetadataOptions options, out ImapMetadata[] metadata)
{
if (options == null)
throw new ArgumentNullException("options");
ValidateMailboxRelationship(mailbox);
return GetMetadataInternal(mailbox.Name, false, entrySpecifiers, options, out metadata);
}
/// <summary>sends SETMETADATA command</summary>
/// <remarks>
/// valid in authenticated/selected state.
/// this method will fail if server does not support METADATA extension.
/// </remarks>
public ImapCommandResult SetMetadata(ImapMailbox mailbox, params ImapMetadata[] metadata)
{
ValidateMailboxRelationship(mailbox);
return SetMetadataInternal(mailbox.Name, false, metadata);
}
/// <summary>sends RLSUB command</summary>
/// <remarks>valid in authenticated state</remarks>
public ImapCommandResult RLsub(string referenceName, string mailboxName, out ImapMailbox[] mailboxes)
{
if (mailboxName == null)
throw new ArgumentNullException("mailboxName");
return RLsubInternal(referenceName, new ImapMailboxNameString(mailboxName), out mailboxes);
}
public ImapMailbox Rename(ImapMailbox existingMailbox, string newMailboxName)
{
mailboxes.Remove(existingMailbox.Name);
existingMailbox.Name = newMailboxName;
mailboxes[existingMailbox.Name] = existingMailbox;
return existingMailbox;
}
/// <summary>sends RLIST command</summary>
/// <remarks>valid in authenticated state</remarks>
public ImapCommandResult RList(string mailboxName, out ImapMailbox[] mailboxes)
{
if (mailboxName == null)
throw new ArgumentNullException("mailboxName");
return RListInternal(string.Empty, new ImapMailboxNameString(mailboxName), out mailboxes);
}
/// <summary>sends RLSUB command</summary>
/// <remarks>
/// valid in authenticated state
/// This method sends LIST command with an empty reference name and a wildcard "*" as mailbox name
/// </remarks>
public ImapCommandResult RLsub(out ImapMailbox[] mailboxes)
{
return RLsubInternal(string.Empty, "*", out mailboxes);
}
/// <summary>sends APPEND command</summary>
/// <remarks>
/// valid in authenticated state.
/// this method tries to automatically create the mailbox when server sent [TRYCREATE] response code.
/// the out parameter <paramref name="appendedUids"/> will be set if the server supports UIDPLUS extension and returns [APPENDUID] responce code, otherwise null.
/// </remarks>
public ImapCommandResult Append(IImapAppendMessage message, string mailboxName, out ImapAppendedUidSet appendedUids, out ImapMailbox createdMailbox)
{
return AppendInternal(new[] {message}, false, mailboxName, out appendedUids, out createdMailbox);
}
/// <summary>sends RENAME command</summary>
/// <remarks>valid in authenticated state</remarks>
public ImapCommandResult Rename(string existingMailboxName, string newMailboxName, out ImapMailbox renamedMailbox)
{
RejectNonAuthenticatedState();
RejectInvalidMailboxNameArgument(existingMailboxName);
RejectInvalidMailboxNameArgument(newMailboxName);
if (ImapMailbox.NameEquals(existingMailboxName, newMailboxName))
throw new ArgumentException("An existing mailbox name and a new mailbox name are same.", "newMailboxName");
/*
* 6.3.5. RENAME Command
* It is
* an error to attempt to rename from a mailbox name that does not
* exist or to a mailbox name that already exists.
*/
var existingRenameToMailbox = mailboxManager.GetExist(newMailboxName);
if (ImapMailbox.IsNameInbox(newMailboxName) ||
(existingRenameToMailbox != null && !existingRenameToMailbox.Flags.Has(ImapMailboxFlag.NonExistent)))
throw new ImapProtocolViolationException(string.Format("It is an error to attempt to rename to a mailbox name that already exists. (newMailboxName: '{0}')", newMailboxName));
renamedMailbox = null;
using (var t = new RenameTransaction(connection)) {
/*
* RFC 4466 - Collected Extensions to IMAP4 ABNF
* http://tools.ietf.org/html/rfc4466
*
* rename = "RENAME" SP mailbox SP mailbox
* [rename-params]
* ;; Use of INBOX as a destination gives
* ;; a NO error, unless rename-params
* ;; is not empty.
* rename-params = SP "(" rename-param *( SP rename-param) ")"
* rename-param = rename-param-name [SP rename-param-value]
* rename-param-name = tagged-ext-label
* rename-param-value= tagged-ext-val
* ;; This non-terminal shows recommended syntax
* ;; for future extensions.
*/
t.RequestArguments["existing mailbox name"] = new ImapMailboxNameString(existingMailboxName);
t.RequestArguments["new mailbox name"] = new ImapMailboxNameString(newMailboxName);
// rename-params
//t.RequestArguments["rename parameters"] = new ImapParenthesizedString();
if (ProcessTransaction(t).Succeeded)
renamedMailbox = mailboxManager.Rename(existingMailboxName, newMailboxName);
else
ProcessMailboxRefferalResponse(t.Result.TaggedStatusResponse);
return t.Result;
}
}
/// <summary>sends RENAME command</summary>
/// <remarks>valid in authenticated state</remarks>
public ImapCommandResult Rename(ImapMailbox existingMailbox, string newMailboxName, out ImapMailbox renamedMailbox)
{
ValidateMailboxRelationship(existingMailbox);
return Rename(existingMailbox.Name, newMailboxName, out renamedMailbox);
}
private void ValidateMailboxRelationship(ImapMailbox mailbox)
{
if (mailbox == null)
throw new ArgumentNullException("mailbox");
if (mailbox.Session != this)
throw new ArgumentException("mailbox is not attached to current session", "mailbox");
}
public ImapMailbox Rename(string existingMailboxName, string newMailboxName)
{
var mailbox = GetExist(existingMailboxName);
if (mailbox == null) {
var newMailbox = new ImapMailbox(newMailboxName);
Add(newMailbox);
return newMailbox;
}
if (mailbox.IsInbox) {
/*
* 6.3.5. RENAME Command
* Renaming INBOX is permitted, and has special behavior. It moves
* all messages in INBOX to a new mailbox with the given name,
* leaving INBOX empty. If the server implementation supports
* inferior hierarchical names of INBOX, these are unaffected by a
* rename of INBOX.
*/
Add(new ImapMailbox(ImapMailbox.Inbox));
return Rename(mailbox, newMailboxName);
}
else {
if (!string.IsNullOrEmpty(mailbox.HierarchyDelimiter)) {
/*
* 6.3.5. RENAME Command
* If the name has inferior hierarchical names, then the inferior
* hierarchical names MUST also be renamed. For example, a rename of
* "foo" to "zap" will rename "foo/bar" (assuming "/" is the
* hierarchy delimiter character) to "zap/bar".
*/
var existingNamePrefix = mailbox.Name + mailbox.HierarchyDelimiter;
var newNamePrefix = newMailboxName + mailbox.HierarchyDelimiter;
var inferiorNames = new List<string>();
foreach (var mailboxName in mailboxes.Keys) {
if (mailboxName.StartsWith(existingNamePrefix, StringComparison.Ordinal))
inferiorNames.Add(mailboxName);
}
foreach (var inferiorName in inferiorNames) {
var inferior = mailboxes[inferiorName];
Rename(inferior, newNamePrefix + inferior.Name.Substring(existingNamePrefix.Length));
}
}
return Rename(mailbox, newMailboxName);
}
}
/// <remarks>
/// valid in authenticated/selected state.
/// this method will fail if server does not support METADATA extension.
/// </remarks>
public ImapCommandResult GetMetadata(ImapMailbox mailbox, string[] entrySpecifiers, out ImapMetadata[] metadata)
{
ValidateMailboxRelationship(mailbox);
return GetMetadataInternal(mailbox.Name, false, entrySpecifiers, null, out metadata);
}
/// <summary>sends extended LIST command</summary>
/// <remarks>valid in authenticated state</remarks>
public ImapCommandResult ListExtended(string referenceName,
string[] mailboxNamePatterns,
ImapListSelectionOptions selectionOptions,
ImapListReturnOptions returnOptions,
out ImapMailbox[] mailboxes)
{
if (referenceName == null)
throw new ArgumentNullException("referenceName");
if (mailboxNamePatterns == null)
throw new ArgumentNullException("mailboxNamePatterns");
else if (mailboxNamePatterns.Length == 0)
throw new ArgumentException("must be non-empty array", "mailboxNamePatterns");
if (selectionOptions == null)
throw new ArgumentNullException("selectionOptions");
if (returnOptions == null)
throw new ArgumentNullException("returnOptions");
return ListExtendedInternal(referenceName, mailboxNamePatterns, selectionOptions, returnOptions, out mailboxes);
}
/// <summary>sends GETQUOTAROOT command</summary>
/// <remarks>valid in authenticated/selected state (undocumented)</remarks>
public ImapCommandResult GetQuotaRoot(ImapMailbox mailbox, out IDictionary<string, ImapQuota[]> quotaRoots)
{
ValidateMailboxRelationship(mailbox);
return GetQuotaRoot(mailbox.Name, out quotaRoots);
}
internal ImapOpenedMailboxInfo(ImapClient client, ImapMailbox mailbox)
: base(client, mailbox)
{
}
/// <summary>sends SETMETADATA command and sets NIL value to remove entries</summary>
/// <remarks>
/// valid in authenticated/selected state.
/// this method will fail if server does not support METADATA extension.
/// </remarks>
public ImapCommandResult SetMetadata(ImapMailbox mailbox, params string[] entrySpecifiers)
{
ValidateMailboxRelationship(mailbox);
return SetMetadataInternal(mailbox.Name, false, Array.ConvertAll<string, ImapMetadata>(entrySpecifiers, ImapMetadata.CreateNil));
}
public WaitForMessageArrivalContext(int pollingInterval,
ImapMailbox mailbox,
ImapMessageFetchAttributeOptions fetchOptions)
{
this.PollingInterval = pollingInterval;
this.Mailbox = mailbox;
this.CurrentMessageCount = mailbox.ExistsMessage;
this.FetchOptions = fetchOptions;
}
private static async Task <IEnumerable <MailMessageModel> > SyncChallengesAsync(ImapMailbox mailbox, long uid)
{
var criteria = string.Format("{0}:* HEADER \"{1}\" \"{2}\"", uid, ParanoiaHeaderKeys.Type, MailType.Challenge);
var uids = await mailbox.SearchAsync(criteria);
if (!uids.Any())
{
return(new MailMessageModel[0]);
}
var envelopes = (await mailbox.FetchEnvelopesAsync(uids)).ToArray();
if (envelopes.Length == 0)
{
return(new MailMessageModel[0]);
}
if (envelopes.Length == 1 && envelopes.First().Uid == uid)
{
return(new MailMessageModel[0]);
}
var now = DateTime.Now;
foreach (var envelope in envelopes.Where(x => x.InternalDate.HasValue &&
now.Subtract(x.InternalDate.Value) < TimeSpan.FromHours(1)))
{
try {
await ProcessChallengeAsync(envelope, mailbox);
} catch (Exception ex) {
Logger.Error(ex);
}
}
var messages = new List <MailMessageModel>();
foreach (var envelope in envelopes)
{
try {
var message = envelope.ToMailMessage(MailType.Challenge);
messages.Add(message);
} catch (Exception ex) {
Logger.Error(ex);
}
}
return(messages);
}
/// <summary>sends LSUB command</summary>
/// <remarks>valid in authenticated state</remarks>
public ImapCommandResult Lsub(ImapMailbox mailbox)
{
ValidateMailboxRelationship(mailbox);
ImapMailbox[] discard;
return LsubInternal(string.Empty, new ImapMailboxNameString(mailbox.Name), out discard);
}
public ExamineTransaction(ImapConnection connection, ImapMailbox selectingMailbox, ImapCapability selectParametersCapabilityRequirement)
: base(connection, selectingMailbox, selectParametersCapabilityRequirement)
{
}
internal IEnumerable<ImapMailboxInfo> GetMailboxes(ImapMailbox mailbox,
ImapMailboxListOptions options)
{
return GetMailboxes(mailbox.Name,
mailbox.HierarchyDelimiter,
true,
mailbox.Flags.Has(ImapMailboxFlag.NoInferiors), // ignore HasNoChildren
options);
}
public WaitForMessageArrivalAsyncResult(int pollingInterval,
ImapMailbox mailbox,
ImapMessageFetchAttributeOptions fetchOptions,
WaitForMessageArrivalProc proc,
object asyncState,
AsyncCallback asyncCallback)
: base(pollingInterval, mailbox, fetchOptions)
{
this.proc = proc;
this.AsyncState = asyncState;
this.asyncCallback = asyncCallback;
}
protected SelectTransactionBase(ImapConnection connection, ImapMailbox selectingMailbox, ImapCapability selectParametersCapabilityRequirement)
: base(connection)
{
this.selectingMailbox = selectingMailbox;
this.selectParametersCapabilityRequirement = selectParametersCapabilityRequirement;
}
internal ImapMailboxInfo(ImapClient client, ImapMailbox mailbox)
{
this.client = client;
this.mailbox = mailbox;
}
/// <summary>sends extended LIST command</summary>
/// <remarks>valid in authenticated state</remarks>
public ImapCommandResult ListExtended(ImapListReturnOptions returnOptions,
out ImapMailbox[] mailboxes,
string mailboxNamePattern,
params string[] mailboxNamePatterns)
{
if (returnOptions == null)
throw new ArgumentNullException("returnOptions");
return ListExtendedInternalNoRefName(mailboxNamePattern, mailboxNamePatterns, null, returnOptions, out mailboxes);
}