Confirming this is still an issue on 20.04 with $ apt-cache policy kaffeine kaffeine: Installed: 2.0.18-1build1 Candidate: 2.0.18-1build1 Version table: *** 2.0.18-1build1 500 500 http://gb.archive.ubuntu.com/ubuntu focal/universe amd64 Packages
The file is a sequence of zlib-encoded bytes created using QT's QFile.qCompress() https://doc.qt.io/qt-5/qbytearray.html#qCompress QByteArray qCompress(const QByteArray &data, int compressionLevel = -1) where compressionLevel = 9 (best). Analyzing the received file shows: $ binwalk /tmp/scantable.dvb.gz DECIMAL HEXADECIMAL DESCRIPTION -------------------------------------------------------------------------------- 4 0x4 Zlib compressed data, best compression The file being requested is: https://autoconfig.kde.org/kaffeine/scantable.dvb.qz src/dvb/dvbconfigdialog.cpp:636: job = KIO::get(QUrl("https://autoconfig.kde.org/kaffeine/scantable.dvb.qz"), KIO::NoReload, Enabling KIO debugging reveals the file is downloaded: kf5.kio.kio_http: ============ Sending Header: kf5.kio.kio_http: "GET /kaffeine/scantable.dvb.qz HTTP/1.1" kf5.kio.kio_http: "Host: autoconfig.kde.org" kf5.kio.kio_http: "Connection: keep-alive" kf5.kio.kio_http: "User-Agent: Mozilla/5.0 (X11; Linux x86_64) KHTML/5.68.0 (like Gecko) Konqueror/5 KIO/5.68" kf5.kio.kio_http: "Accept: text/html, text/*;q=0.9, image/jpeg;q=0.9, image/png;q=0.9, image/*;q=0.9, */*;q=0.8" kf5.kio.kio_http: "Accept-Encoding: gzip, deflate, x-gzip, x-deflate" kf5.kio.kio_http: "Accept-Charset: utf-8,*;q=0.5" kf5.kio.kio_http: "Accept-Language: en-GB,en;q=0.9" kf5.kio.kio_http: sent it! kf5.kio.kio_http: kf5.kio.kio_http: ============ Received Status Response: kf5.kio.kio_http: "HTTP/1.1 200 OK" kf5.kio.kio_http: QUrl("https://autoconfig.kde.org/kaffeine/scantable.dvb.qz") response code: 200 previous response code: 0 kf5.kio.kio_http: wasAuthError= false isAuthError= false sameAuthError= false kf5.kio.kio_http: -- full response: "HTTP/1.1 200 OK\r\nDate: Sun, 15 Aug 2021 07:07:46 GMT\r\nServer: Apache/2.4.29 (Ubuntu)\r\nUpgrade: h2\r\nConnection: Upgrade, Keep-Alive\r\nLa st-Modified: Tue, 04 May 2021 17:52:06 GMT\r\nAccept-Ranges: bytes\r\nContent-Length: 102499\r\nCache-Control: max-age=0\r\nExpires: Sun, 15 Aug 2 021 07:07:46 GMT\r\nStrict-Transport-Security: max-age=15768000\r\nReferrer-Policy: strict-origin-when-cross-origin\r\nX-XSS-Protection: 1; mode=b lock\r\nX-Content-Type-Options: nosniff\r\nX-Frame-Options: sameorigin\r\nPermissions-Policy: interest-cohort=()\r\nKeep-Alive: timeout=5, max=100 " kf5.kio.kio_http: parsed expire date from 'expires' header: "Sun, 15 Aug 2021 07:07:46 GMT" kf5.kio.kio_http: Cache needs validation kf5.kio.kio_http: kf5.kio.kio_http: Previous Response: 0 kf5.kio.kio_http: Current Response: 200 kf5.kio.kio_http: "102499" bytes left. kf5.kio.kio_http: bytesReceived: 4096 m_iSize: 102499 Chunked: false BytesLeft: 98403 kf5.kio.kio_http: Determining mime-type from content... kf5.kio.kio_http: Mimetype buffer size: 4096 kf5.kio.kio_http: Using default mimetype: "text/html" kf5.kio.kio_http: bytesReceived: 4096 m_iSize: 102499 Chunked: false BytesLeft: 94307 kf5.kio.kio_http: bytesReceived: 4096 m_iSize: 102499 Chunked: false BytesLeft: 90211 kf5.kio.kio_http: bytesReceived: 4096 m_iSize: 102499 Chunked: false BytesLeft: 86115 kf5.kio.kio_http: bytesReceived: 4096 m_iSize: 102499 Chunked: false BytesLeft: 82019 kf5.kio.kio_http: bytesReceived: 4096 m_iSize: 102499 Chunked: false BytesLeft: 77923 kf5.kio.kio_http: bytesReceived: 4096 m_iSize: 102499 Chunked: false BytesLeft: 73827 kf5.kio.kio_http: bytesReceived: 4096 m_iSize: 102499 Chunked: false BytesLeft: 69731 kf5.kio.kio_http: bytesReceived: 4096 m_iSize: 102499 Chunked: false BytesLeft: 65635 kf5.kio.kio_http: bytesReceived: 4096 m_iSize: 102499 Chunked: false BytesLeft: 61539 kf5.kio.kio_http: bytesReceived: 4096 m_iSize: 102499 Chunked: false BytesLeft: 57443 kf5.kio.kio_http: bytesReceived: 4096 m_iSize: 102499 Chunked: false BytesLeft: 53347 kf5.kio.kio_http: bytesReceived: 4096 m_iSize: 102499 Chunked: false BytesLeft: 49251 kf5.kio.kio_http: bytesReceived: 4096 m_iSize: 102499 Chunked: false BytesLeft: 45155 kf5.kio.kio_http: bytesReceived: 4096 m_iSize: 102499 Chunked: false BytesLeft: 41059 kf5.kio.kio_http: bytesReceived: 4096 m_iSize: 102499 Chunked: false BytesLeft: 36963 kf5.kio.kio_http: bytesReceived: 4096 m_iSize: 102499 Chunked: false BytesLeft: 32867 kf5.kio.kio_http: bytesReceived: 4096 m_iSize: 102499 Chunked: false BytesLeft: 28771 kf5.kio.kio_http: bytesReceived: 4096 m_iSize: 102499 Chunked: false BytesLeft: 24675 kf5.kio.kio_http: bytesReceived: 4096 m_iSize: 102499 Chunked: false BytesLeft: 20579 kf5.kio.kio_http: bytesReceived: 4096 m_iSize: 102499 Chunked: false BytesLeft: 16483 kf5.kio.kio_http: bytesReceived: 4096 m_iSize: 102499 Chunked: false BytesLeft: 12387 kf5.kio.kio_http: bytesReceived: 4096 m_iSize: 102499 Chunked: false BytesLeft: 8291 kf5.kio.kio_http: bytesReceived: 4096 m_iSize: 102499 Chunked: false BytesLeft: 4195 kf5.kio.kio_http: bytesReceived: 4096 m_iSize: 102499 Chunked: false BytesLeft: 99 kf5.kio.kio_http: bytesReceived: 99 m_iSize: 102499 Chunked: false BytesLeft: 0 kf5.kio.kio_http: EOD received! Left = "0" kf5.kio.kio_http: kf5.kio.kio_http: keepAlive = true kf5.kio.kio_http: kf5.kio.kio_http: keep alive ( 5 ) kf5.kio.kio_http: keepAlive = false kf5.kio.kio_http: kf5.kio.kio_http: kdeinit5: PID 2849693 terminated. Based on the update dialog reporting "Scan data update failed" it suggests the code path never reaches: src/dvb/dvbmanager.cpp DvbManager::updateScanData(const QByteArray &data) There's a suspicious looking job kill based on scanData.size() >= 64KiB: src/dvb/dvbconfigdialog.cpp void DvbScanFileDownloadDialog::dataArrived(KIO::Job *, const QByteArray &data) { if ((scanData.size() + data.size()) <= (64 * 1024)) { scanData.append(data); } else { job->kill(KJob::EmitResult); } } Which led me to the upstream source and an April 2021 commit and related bug: https://bugs.kde.org/show_bug.cgi?id=436371 " Can't download scanfile, as it is too big" commit 209a263ab2191f0b1d13f48a0a2fa67794357ad0 Author: Mauro Carvalho Chehab <mchehab+hua...@kernel.org> Date: Fri Apr 30 08:35:31 2021 +0200 dvbconfigdialog: increase max download size for scandata By the time Kaffeine was written, a 64KB max limit were enough, but nowadays, the scandata file has already 104KB. Increase the limit up to 1MB, in order to fix download issues with valid files. While here, also improve the download messages to show how much data was downloaded and to report the reason why a download was aborted. BUG: 436371 Signed-off-by: Mauro Carvalho Chehab <mchehab+hua...@kernel.org> ** Bug watch added: KDE Bug Tracking System #436371 https://bugs.kde.org/show_bug.cgi?id=436371 ** Also affects: kaffeine via https://bugs.kde.org/show_bug.cgi?id=436371 Importance: Unknown Status: Unknown -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1879923 Title: Update Scan Data Over Internet fails To manage notifications about this bug go to: https://bugs.launchpad.net/kaffeine/+bug/1879923/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs