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Migration procedure for asset images that were stored in the url / message field

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Guillaume BIENKOWSKI 2014-06-03 18:45:10 +02:00
parent 8ebecf0085
commit 44ce362ca7
1 changed files with 75 additions and 43 deletions
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118
Classes/LinphoneManager.m
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@ -312,6 +312,11 @@ struct codec_name_pref_table codec_pref_table[]={
#pragma mark - Database Functions
static int check_should_migrate_images(void* data ,int argc,char** argv,char** cnames){
*((BOOL*)data) = TRUE;
return 0;
}
- (BOOL)migrateChatDBIfNeeded:(LinphoneCore*)lc {
sqlite3* newDb;
char *errMsg;
@ -319,67 +324,94 @@ struct codec_name_pref_table codec_pref_table[]={
NSString *oldDbPath = [LinphoneManager documentFile:kLinphoneOldChatDBFilename];
NSString *newDbPath = [LinphoneManager documentFile:kLinphoneInternalChatDBFilename];
BOOL shouldMigrate = [[NSFileManager defaultManager] fileExistsAtPath:oldDbPath];
BOOL shouldMigrateImages = FALSE;
LinphoneProxyConfig* default_proxy;
const char* identity = NULL;
BOOL migrated = FALSE;
char* attach_stmt = NULL;
linphone_core_get_default_proxy(lc, &default_proxy);
if( !shouldMigrate ) return FALSE;
if( sqlite3_open([newDbPath UTF8String], &newDb) != SQLITE_OK) {
[LinphoneLogger log:LinphoneLoggerError format:@"Can't open \"%@\" sqlite3 database.", newDbPath];
return FALSE;
}
const char* check_appdata = "SELECT url,message FROM history WHERE url LIKE 'assets-library%' OR message LIKE 'assets-library%' LIMIT 1;";
// will set "needToMigrateImages to TRUE if a result comes by
sqlite3_exec(newDb, check_appdata, check_should_migrate_images, &shouldMigrateImages, NULL);
if( !shouldMigrate && !shouldMigrateImages ) {
sqlite3_close(newDb);
return FALSE;
}
[LinphoneLogger logc:LinphoneLoggerLog format:"Starting migration procedure"];
// attach old database to the new one:
char* attach_stmt = sqlite3_mprintf("ATTACH DATABASE %Q AS oldchats", [oldDbPath UTF8String]);
if( sqlite3_exec(newDb, attach_stmt, NULL, NULL, &errMsg) != SQLITE_OK ){
[LinphoneLogger logc:LinphoneLoggerError format:"Can't attach old chat table, error[%s] ", errMsg];
sqlite3_free(errMsg);
goto exit_dbmigration;
if( shouldMigrate ){
// attach old database to the new one:
attach_stmt = sqlite3_mprintf("ATTACH DATABASE %Q AS oldchats", [oldDbPath UTF8String]);
if( sqlite3_exec(newDb, attach_stmt, NULL, NULL, &errMsg) != SQLITE_OK ){
[LinphoneLogger logc:LinphoneLoggerError format:"Can't attach old chat table, error[%s] ", errMsg];
sqlite3_free(errMsg);
goto exit_dbmigration;
}
// migrate old chats to the new db. The iOS stores timestamp in UTC already, so we can directly put it in the 'utc' field and set 'time' to -1
const char* migration_statement = "INSERT INTO history (localContact,remoteContact,direction,message,utc,read,status,time) "
"SELECT localContact,remoteContact,direction,message,time,read,state,'-1' FROM oldchats.chat";
if( sqlite3_exec(newDb, migration_statement, NULL, NULL, &errMsg) != SQLITE_OK ){
[LinphoneLogger logc:LinphoneLoggerError format:"DB migration failed, error[%s] ", errMsg];
sqlite3_free(errMsg);
goto exit_dbmigration;
}
// replace empty from: or to: by the current identity.
if( default_proxy ){
identity = linphone_proxy_config_get_identity(default_proxy);
}
if( !identity ){
identity = "sip:unknown@sip.linphone.org";
}
char* from_conversion = sqlite3_mprintf("UPDATE history SET localContact = %Q WHERE localContact = ''", identity);
if( sqlite3_exec(newDb, from_conversion, NULL, NULL, &errMsg) != SQLITE_OK ){
[LinphoneLogger logc:LinphoneLoggerError format:"FROM conversion failed, error[%s] ", errMsg];
sqlite3_free(errMsg);
}
sqlite3_free(from_conversion);
char* to_conversion = sqlite3_mprintf("UPDATE history SET remoteContact = %Q WHERE remoteContact = ''", identity);
if( sqlite3_exec(newDb, to_conversion, NULL, NULL, &errMsg) != SQLITE_OK ){
[LinphoneLogger logc:LinphoneLoggerError format:"DB migration failed, error[%s] ", errMsg];
sqlite3_free(errMsg);
}
sqlite3_free(to_conversion);
}
// local image paths were stored in the 'message' field historically. They were
// very temporarily stored in the 'url' field, and now we migrated them to a JSON-
// encoded field. These are the migration steps to migrate them.
// migrate old chats to the new db. The iOS stores timestamp in UTC already, so we can directly put it in the 'utc' field and set 'time' to -1
const char* migration_statement = "INSERT INTO history (localContact,remoteContact,direction,message,utc,read,status,time) "
"SELECT localContact,remoteContact,direction,message,time,read,state,'-1' FROM oldchats.chat";
if( sqlite3_exec(newDb, migration_statement, NULL, NULL, &errMsg) != SQLITE_OK ){
[LinphoneLogger logc:LinphoneLoggerError format:"DB migration failed, error[%s] ", errMsg];
sqlite3_free(errMsg);
goto exit_dbmigration;
}
// replace empty from: or to: by the current identity.
if( default_proxy ){
identity = linphone_proxy_config_get_identity(default_proxy);
}
if( !identity ){
identity = "sip:unknown@sip.linphone.org";
}
char* from_conversion = sqlite3_mprintf("UPDATE history SET localContact = %Q WHERE localContact = ''", identity);
if( sqlite3_exec(newDb, from_conversion, NULL, NULL, &errMsg) != SQLITE_OK ){
[LinphoneLogger logc:LinphoneLoggerError format:"FROM conversion failed, error[%s] ", errMsg];
sqlite3_free(errMsg);
}
sqlite3_free(from_conversion);
char* to_conversion = sqlite3_mprintf("UPDATE history SET remoteContact = %Q WHERE remoteContact = ''", identity);
if( sqlite3_exec(newDb, to_conversion, NULL, NULL, &errMsg) != SQLITE_OK ){
[LinphoneLogger logc:LinphoneLoggerError format:"DB migration failed, error[%s] ", errMsg];
sqlite3_free(errMsg);
}
sqlite3_free(to_conversion);
// move already stored images from the messages to the url field
const char* assetslib_migration = "UPDATE history SET url=message, message='' WHERE message LIKE 'assets-library%'";
// move already stored images from the messages to the appdata JSON field
const char* assetslib_migration = "UPDATE history SET appdata='{\"localimage\":\"'||message||'\"}' , message='' WHERE message LIKE 'assets-library%'";
if( sqlite3_exec(newDb, assetslib_migration, NULL, NULL, &errMsg) != SQLITE_OK ){
[LinphoneLogger logc:LinphoneLoggerError format:"Assets-history migration failed, error[%s] ", errMsg];
[LinphoneLogger logc:LinphoneLoggerError format:"Assets-history migration for MESSAGE failed, error[%s] ", errMsg];
sqlite3_free(errMsg);
}
// move already stored images from the url to the appdata JSON field
const char* assetslib_migration_fromurl = "UPDATE history SET appdata='{\"localimage\":\"'||url||'\"}' , url='' WHERE url LIKE 'assets-library%'";
if( sqlite3_exec(newDb, assetslib_migration_fromurl, NULL, NULL, &errMsg) != SQLITE_OK ){
[LinphoneLogger logc:LinphoneLoggerError format:"Assets-history migration for URL failed, error[%s] ", errMsg];
sqlite3_free(errMsg);
}
// We will lose received messages with remote url, they will be displayed in plain. We can't do much for them..
migrated = TRUE;
@ -390,7 +422,7 @@ exit_dbmigration:
sqlite3_close(newDb);
// in any case, we should remove the old chat db
if(![[NSFileManager defaultManager] removeItemAtPath:oldDbPath error:&error] ){
if( shouldMigrate && ![[NSFileManager defaultManager] removeItemAtPath:oldDbPath error:&error] ){
[LinphoneLogger logc:LinphoneLoggerError format:"Could not remove old chat DB: %@", error];
}