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database: Only insert if there is no entry with same archive_id

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archive_is is <stanza-id> or <result id=""> and should identify one
message stable and uniquely.

See XEP-0359: Unique and Stable Stanza IDs.

We need this for example for this situation:
* we go online with Profanity
* we fetch all messages since yesterday
* we add them to the db
* we go offline
* we go online with Profanity
* we fetch all messages since yesterday
* we only want to add the new ones

So far we don't ask MAM "give me all since last 'id'" but since a
certain date.

In case no archive_id will be set, it will be `(null)` and thus should
be inserted anyways because it won't find a value with (null) in that
row.

Because when adding we use `message->stanzaid ? message->stanzaid : "",`
so it will be empty in such a case.

Regards MAM: https://github.com/profanity-im/profanity/issues/660
Regards Stable IDs: https://github.com/profanity-im/profanity/issues/1207
This commit is contained in:
Michael Vetter 2020-07-23 15:19:13 +02:00
parent 8852db03d6
commit c9b154b1a2
1 changed files with 6 additions and 4 deletions
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10
src/database.c
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@ -110,8 +110,8 @@ log_database_init(ProfAccount* account)
// message is the message text
// timestamp the timestamp like "2020/03/24 11:12:14"
// type is there to distinguish: message (chat), MUC message (muc), muc pm (mucpm)
// stanza_id is the ID from XEP-0359: Unique and Stable Stanza IDs
// archive_id is the ID from XEP-0313: Message Archive Management
// stanza_id is the ID in <message>
// archive_id is the stanza-id from from XEP-0359: Unique and Stable Stanza IDs used for XEP-0313: Message Archive Management
// replace_id is the ID from XEP-0308: Last Message Correction
// encryption is to distinguish: none, omemo, otr, pgp
// marked_read is 0/1 whether a message has been marked as read via XEP-0333: Chat Markers
@ -335,7 +335,7 @@ _add_to_db(ProfMessage* message, char* type, const Jid* const from_jid, const Ji
char* escaped_message = str_replace(message->plain, "'", "''");
if (asprintf(&query, "INSERT INTO `ChatLogs` (`from_jid`, `from_resource`, `to_jid`, `to_resource`, `message`, `timestamp`, `stanza_id`, `replace_id`, `type`, `encryption`) VALUES ('%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s')",
if (asprintf(&query, "INSERT INTO `ChatLogs` (`from_jid`, `from_resource`, `to_jid`, `to_resource`, `message`, `timestamp`, `stanza_id`, `archive_id`, `replace_id`, `type`, `encryption`) SELECT '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s' WHERE NOT EXISTS (SELECT 1 FROM `ChatLogs` WHERE `archive_id` = '%s')",
from_jid->barejid,
from_jid->resourcepart ? from_jid->resourcepart : "",
to_jid->barejid,
@ -343,9 +343,11 @@ _add_to_db(ProfMessage* message, char* type, const Jid* const from_jid, const Ji
escaped_message,
date_fmt,
message->id ? message->id : "",
message->stanzaid ? message->stanzaid : "",
message->replace_id ? message->replace_id : "",
type,
enc)
enc,
message->stanzaid)
== -1) {
log_error("log_database_add(): SQL query. could not allocate memory");
return;