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session-android/src/org/thoughtcrime/securesms/database/MmsSmsColumns.java

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Major storage layer refactoring to set the stage for clean GCM. 1) We now try to hand out cursors at a minimum. There has always been a fairly clean insertion layer that handles encrypting message bodies, but the process of decrypting message bodies has always been less than ideal. Here we introduce a "Reader" interface that will decrypt message bodies when appropriate and return objects that encapsulate record state. No more MessageDisplayHelper. The MmsSmsDatabase interface is also more sane. 2) We finally rid ourselves of the technical debt associated with TextSecure's initial usage of the default SMS DB. In that world, we weren't able to use anything other than the default "Inbox, Outbox, Sent" types to describe a message, and had to overload the message content itself with a set of local "prefixes" to describe what it was (encrypted, asymetric encrypted, remote encrypted, a key exchange, procssed key exchange), and so on. This includes a major schema update that transforms the "type" field into a bitmask that describes everything that used to be encoded in a prefix, and prefixes have been completely eliminated from the system. No more Prefix.java 3) Refactoring of the MultipartMessageHandler code. It's less of a mess, and hopefully more clear as to what's going on. The next step is to remove what we can from SmsTransportDetails and genericize that interface for a GCM equivalent.
2013-04-20 21:22:04 +02:00
package org.thoughtcrime.securesms.database;
public interface MmsSmsColumns {
public static final String ID = "_id";
public static final String NORMALIZED_DATE_SENT = "date_sent";
public static final String NORMALIZED_DATE_RECEIVED = "date_received";
public static final String THREAD_ID = "thread_id";
public static final String READ = "read";
Make MMS more asynchronous and consistent with new SMS types. 1) We now delay MMS notifications until a payload is received, or there's an error downloading the payload. This makes group messages more consistent. 2) All "text" parts of an MMS are combined into a second text record, which is stored in the MMS row directly rather than as a distinct part. This allows for immediate text loading, which means there's no chance a ConversationItem will resize. To do this, we need to include MMS in the big DB migration that's already staged for this application update. It's also an "application-level" migration, because we need the MasterSecret to do it. 3) On conversation display, all image-based parts now have their thumbnails loaded asynchronously. This allows for smooth-scrolling. The thumbnails are also scaled more accurately.
2013-04-26 20:23:43 +02:00
public static final String BODY = "body";
Support for multi-device. 1) In addition to the Recipient interface, there is now RecipientDevice. A Recipient can have multiple corresponding RecipientDevices. All addressing is done to a Recipient, but crypto sessions and transport delivery are done to RecipientDevice. 2) The Push transport handles the discovery and session setup of additional Recipient devices. 3) Some internal rejiggering of Groups.
2014-02-03 04:38:06 +01:00
public static final String ADDRESS = "address";
public static final String ADDRESS_DEVICE_ID = "address_device_id";
Display group actions and correctly handle group delivery.
2014-02-15 00:59:57 +01:00
public static final String GROUP_ACTION = "group_action";
public static final String GROUP_ACTION_ARGUMENTS = "group_action_arguments";
Major storage layer refactoring to set the stage for clean GCM. 1) We now try to hand out cursors at a minimum. There has always been a fairly clean insertion layer that handles encrypting message bodies, but the process of decrypting message bodies has always been less than ideal. Here we introduce a "Reader" interface that will decrypt message bodies when appropriate and return objects that encapsulate record state. No more MessageDisplayHelper. The MmsSmsDatabase interface is also more sane. 2) We finally rid ourselves of the technical debt associated with TextSecure's initial usage of the default SMS DB. In that world, we weren't able to use anything other than the default "Inbox, Outbox, Sent" types to describe a message, and had to overload the message content itself with a set of local "prefixes" to describe what it was (encrypted, asymetric encrypted, remote encrypted, a key exchange, procssed key exchange), and so on. This includes a major schema update that transforms the "type" field into a bitmask that describes everything that used to be encoded in a prefix, and prefixes have been completely eliminated from the system. No more Prefix.java 3) Refactoring of the MultipartMessageHandler code. It's less of a mess, and hopefully more clear as to what's going on. The next step is to remove what we can from SmsTransportDetails and genericize that interface for a GCM equivalent.
2013-04-20 21:22:04 +02:00
public static class Types {
protected static final long TOTAL_MASK = 0xFFFFFFFF;
// Base Types
protected static final long BASE_TYPE_MASK = 0xFF;
protected static final long BASE_INBOX_TYPE = 20;
protected static final long BASE_OUTBOX_TYPE = 21;
protected static final long BASE_SENDING_TYPE = 22;
protected static final long BASE_SENT_TYPE = 23;
protected static final long BASE_SENT_FAILED_TYPE = 24;
protected static final long[] OUTGOING_MESSAGE_TYPES = {BASE_OUTBOX_TYPE, BASE_SENT_TYPE,
BASE_SENDING_TYPE, BASE_SENT_FAILED_TYPE};
// Key Exchange Information
Basic support for prekeybundle message delivery and receipt.
2013-08-22 02:25:19 +02:00
protected static final long KEY_EXCHANGE_BIT = 0x8000;
protected static final long KEY_EXCHANGE_STALE_BIT = 0x4000;
protected static final long KEY_EXCHANGE_PROCESSED_BIT = 0x2000;
protected static final long KEY_EXCHANGE_CORRUPTED_BIT = 0x1000;
protected static final long KEY_EXCHANGE_INVALID_VERSION_BIT = 0x800;
Rollbacks, v2 sms-transport key exchanges, push identity conflicts. 1) Stop protocol rollbacks. 2) Handle v2 version key exchange messages. 3) Handle identity key conflicts on prekeybundle messages.
2013-09-14 22:33:23 +02:00
protected static final long KEY_EXCHANGE_BUNDLE_BIT = 0x400;
Major storage layer refactoring to set the stage for clean GCM. 1) We now try to hand out cursors at a minimum. There has always been a fairly clean insertion layer that handles encrypting message bodies, but the process of decrypting message bodies has always been less than ideal. Here we introduce a "Reader" interface that will decrypt message bodies when appropriate and return objects that encapsulate record state. No more MessageDisplayHelper. The MmsSmsDatabase interface is also more sane. 2) We finally rid ourselves of the technical debt associated with TextSecure's initial usage of the default SMS DB. In that world, we weren't able to use anything other than the default "Inbox, Outbox, Sent" types to describe a message, and had to overload the message content itself with a set of local "prefixes" to describe what it was (encrypted, asymetric encrypted, remote encrypted, a key exchange, procssed key exchange), and so on. This includes a major schema update that transforms the "type" field into a bitmask that describes everything that used to be encoded in a prefix, and prefixes have been completely eliminated from the system. No more Prefix.java 3) Refactoring of the MultipartMessageHandler code. It's less of a mess, and hopefully more clear as to what's going on. The next step is to remove what we can from SmsTransportDetails and genericize that interface for a GCM equivalent.
2013-04-20 21:22:04 +02:00
// Secure Message Information
protected static final long SECURE_MESSAGE_BIT = 0x800000;
// Encrypted Storage Information
protected static final long ENCRYPTION_MASK = 0xFF000000;
protected static final long ENCRYPTION_SYMMETRIC_BIT = 0x80000000;
protected static final long ENCRYPTION_ASYMMETRIC_BIT = 0x40000000;
protected static final long ENCRYPTION_REMOTE_BIT = 0x20000000;
protected static final long ENCRYPTION_REMOTE_FAILED_BIT = 0x10000000;
protected static final long ENCRYPTION_REMOTE_NO_SESSION_BIT = 0x08000000;
public static boolean isFailedMessageType(long type) {
return (type & BASE_TYPE_MASK) == BASE_SENT_FAILED_TYPE;
}
public static boolean isOutgoingMessageType(long type) {
for (long outgoingType : OUTGOING_MESSAGE_TYPES) {
if ((type & BASE_TYPE_MASK) == outgoingType)
return true;
}
return false;
}
public static boolean isPendingMessageType(long type) {
return
(type & BASE_TYPE_MASK) == BASE_OUTBOX_TYPE ||
(type & BASE_TYPE_MASK) == BASE_SENDING_TYPE;
}
Enhanced import/export support. 1) Allow imports from the stock SMS database at any time. 2) Provide plaintext export support, in a format compatible with the "SMS Backup And Restore" app. 3) Fix the DB weirdness on encrypted restore that previously required killing the app.
2013-06-25 06:02:30 +02:00
public static boolean isInboxType(long type) {
return (type & BASE_TYPE_MASK) == BASE_INBOX_TYPE;
}
Major storage layer refactoring to set the stage for clean GCM. 1) We now try to hand out cursors at a minimum. There has always been a fairly clean insertion layer that handles encrypting message bodies, but the process of decrypting message bodies has always been less than ideal. Here we introduce a "Reader" interface that will decrypt message bodies when appropriate and return objects that encapsulate record state. No more MessageDisplayHelper. The MmsSmsDatabase interface is also more sane. 2) We finally rid ourselves of the technical debt associated with TextSecure's initial usage of the default SMS DB. In that world, we weren't able to use anything other than the default "Inbox, Outbox, Sent" types to describe a message, and had to overload the message content itself with a set of local "prefixes" to describe what it was (encrypted, asymetric encrypted, remote encrypted, a key exchange, procssed key exchange), and so on. This includes a major schema update that transforms the "type" field into a bitmask that describes everything that used to be encoded in a prefix, and prefixes have been completely eliminated from the system. No more Prefix.java 3) Refactoring of the MultipartMessageHandler code. It's less of a mess, and hopefully more clear as to what's going on. The next step is to remove what we can from SmsTransportDetails and genericize that interface for a GCM equivalent.
2013-04-20 21:22:04 +02:00
public static boolean isSecureType(long type) {
return (type & SECURE_MESSAGE_BIT) != 0;
}
public static boolean isKeyExchangeType(long type) {
return (type & KEY_EXCHANGE_BIT) != 0;
}
public static boolean isStaleKeyExchange(long type) {
return (type & KEY_EXCHANGE_STALE_BIT) != 0;
}
public static boolean isProcessedKeyExchange(long type) {
return (type & KEY_EXCHANGE_PROCESSED_BIT) != 0;
}
Basic support for prekeybundle message delivery and receipt.
2013-08-22 02:25:19 +02:00
public static boolean isCorruptedKeyExchange(long type) {
return (type & KEY_EXCHANGE_CORRUPTED_BIT) != 0;
}
public static boolean isInvalidVersionKeyExchange(long type) {
return (type & KEY_EXCHANGE_INVALID_VERSION_BIT) != 0;
}
Rollbacks, v2 sms-transport key exchanges, push identity conflicts. 1) Stop protocol rollbacks. 2) Handle v2 version key exchange messages. 3) Handle identity key conflicts on prekeybundle messages.
2013-09-14 22:33:23 +02:00
public static boolean isBundleKeyExchange(long type) {
return (type & KEY_EXCHANGE_BUNDLE_BIT) != 0;
}
Major storage layer refactoring to set the stage for clean GCM. 1) We now try to hand out cursors at a minimum. There has always been a fairly clean insertion layer that handles encrypting message bodies, but the process of decrypting message bodies has always been less than ideal. Here we introduce a "Reader" interface that will decrypt message bodies when appropriate and return objects that encapsulate record state. No more MessageDisplayHelper. The MmsSmsDatabase interface is also more sane. 2) We finally rid ourselves of the technical debt associated with TextSecure's initial usage of the default SMS DB. In that world, we weren't able to use anything other than the default "Inbox, Outbox, Sent" types to describe a message, and had to overload the message content itself with a set of local "prefixes" to describe what it was (encrypted, asymetric encrypted, remote encrypted, a key exchange, procssed key exchange), and so on. This includes a major schema update that transforms the "type" field into a bitmask that describes everything that used to be encoded in a prefix, and prefixes have been completely eliminated from the system. No more Prefix.java 3) Refactoring of the MultipartMessageHandler code. It's less of a mess, and hopefully more clear as to what's going on. The next step is to remove what we can from SmsTransportDetails and genericize that interface for a GCM equivalent.
2013-04-20 21:22:04 +02:00
public static boolean isSymmetricEncryption(long type) {
return (type & ENCRYPTION_SYMMETRIC_BIT) != 0;
}
public static boolean isFailedDecryptType(long type) {
return (type & ENCRYPTION_REMOTE_FAILED_BIT) != 0;
}
public static boolean isDecryptInProgressType(long type) {
return
(type & ENCRYPTION_REMOTE_BIT) != 0 ||
(type & ENCRYPTION_ASYMMETRIC_BIT) != 0;
}
public static boolean isNoRemoteSessionType(long type) {
return (type & ENCRYPTION_REMOTE_NO_SESSION_BIT) != 0;
}
public static long translateFromSystemBaseType(long theirType) {
// public static final int NONE_TYPE = 0;
// public static final int INBOX_TYPE = 1;
// public static final int SENT_TYPE = 2;
// public static final int SENT_PENDING = 4;
// public static final int FAILED_TYPE = 5;
switch ((int)theirType) {
case 1: return BASE_INBOX_TYPE;
case 2: return BASE_SENT_TYPE;
case 4: return BASE_OUTBOX_TYPE;
case 5: return BASE_SENT_FAILED_TYPE;
}
return BASE_INBOX_TYPE;
}
Enhanced import/export support. 1) Allow imports from the stock SMS database at any time. 2) Provide plaintext export support, in a format compatible with the "SMS Backup And Restore" app. 3) Fix the DB weirdness on encrypted restore that previously required killing the app.
2013-06-25 06:02:30 +02:00
public static int translateToSystemBaseType(long type) {
if (isInboxType(type)) return 1;
else if (isOutgoingMessageType(type)) return 2;
else if (isFailedMessageType(type)) return 5;
return 1;
}
Major storage layer refactoring to set the stage for clean GCM. 1) We now try to hand out cursors at a minimum. There has always been a fairly clean insertion layer that handles encrypting message bodies, but the process of decrypting message bodies has always been less than ideal. Here we introduce a "Reader" interface that will decrypt message bodies when appropriate and return objects that encapsulate record state. No more MessageDisplayHelper. The MmsSmsDatabase interface is also more sane. 2) We finally rid ourselves of the technical debt associated with TextSecure's initial usage of the default SMS DB. In that world, we weren't able to use anything other than the default "Inbox, Outbox, Sent" types to describe a message, and had to overload the message content itself with a set of local "prefixes" to describe what it was (encrypted, asymetric encrypted, remote encrypted, a key exchange, procssed key exchange), and so on. This includes a major schema update that transforms the "type" field into a bitmask that describes everything that used to be encoded in a prefix, and prefixes have been completely eliminated from the system. No more Prefix.java 3) Refactoring of the MultipartMessageHandler code. It's less of a mess, and hopefully more clear as to what's going on. The next step is to remove what we can from SmsTransportDetails and genericize that interface for a GCM equivalent.
2013-04-20 21:22:04 +02:00
//
//
//
// public static final int NONE_TYPE = 0;
// public static final int INBOX_TYPE = 1;
// public static final int SENT_TYPE = 2;
// public static final int SENT_PENDING = 4;
// public static final int FAILED_TYPE = 5;
//
// public static final int OUTBOX_TYPE = 43; // Messages are stored local encrypted and need delivery.
//
//
// public static final int ENCRYPTING_TYPE = 42; // Messages are stored local encrypted and need async encryption and delivery.
// public static final int SECURE_SENT_TYPE = 44; // Messages were sent with async encryption.
// public static final int SECURE_RECEIVED_TYPE = 45; // Messages were received with async decryption.
// public static final int FAILED_DECRYPT_TYPE = 46; // Messages were received with async encryption and failed to decrypt.
// public static final int DECRYPTING_TYPE = 47; // Messages are in the process of being asymmetricaly decrypted.
// public static final int NO_SESSION_TYPE = 48; // Messages were received with async encryption but there is no session yet.
//
// public static final int OUTGOING_KEY_EXCHANGE_TYPE = 49;
// public static final int INCOMING_KEY_EXCHANGE_TYPE = 50;
// public static final int STALE_KEY_EXCHANGE_TYPE = 51;
// public static final int PROCESSED_KEY_EXCHANGE_TYPE = 52;
//
// public static final int[] OUTGOING_MESSAGE_TYPES = {SENT_TYPE, SENT_PENDING, ENCRYPTING_TYPE,
// OUTBOX_TYPE, SECURE_SENT_TYPE,
// FAILED_TYPE, OUTGOING_KEY_EXCHANGE_TYPE};
//
// public static boolean isFailedMessageType(long type) {
// return type == FAILED_TYPE;
// }
//
// public static boolean isOutgoingMessageType(long type) {
// for (int outgoingType : OUTGOING_MESSAGE_TYPES) {
// if (type == outgoingType)
// return true;
// }
//
// return false;
// }
//
// public static boolean isPendingMessageType(long type) {
// return type == SENT_PENDING || type == ENCRYPTING_TYPE || type == OUTBOX_TYPE;
// }
//
// public static boolean isSecureType(long type) {
// return
// type == SECURE_SENT_TYPE || type == ENCRYPTING_TYPE ||
// type == SECURE_RECEIVED_TYPE || type == DECRYPTING_TYPE;
// }
//
// public static boolean isKeyExchangeType(long type) {
// return type == OUTGOING_KEY_EXCHANGE_TYPE || type == INCOMING_KEY_EXCHANGE_TYPE;
// }
}
}
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