[Bug]: Read error (EOF) when accessing file overwritten from encrypted to unencrypted

[iwconfig]

Describe the bug

Description written with a touch of AI assistance, because I've given too much of my time on this already (the usual case of the sunk-cost fallacy 😉)

A user on Discord encountered this issue (see conversation).

When a file is initially uploaded with encryption enabled and then subsequently overwritten by a file of the same name with encryption disabled, the file becomes inaccessible. Attempts to download or view the file via rclone or the Teldrive web UI result in errors (e.g., unexpected EOF in rclone, indefinite loading in UI).

The core issue appears to be a mismatch in how Teldrive handles the file's metadata versus its actual state in Telegram. After the overwrite with an unencrypted version:

1. The encrypted flag in the teldrive.files database table for the file incorrectly remains true.
2. The salt information is removed from the parts JSONB column for that file record.
3. The actual file stored in the Telegram channel is the new, unencrypted version.

Teldrive panics with an "integer divide by zero" error within its file reading/streaming logic (calculatePartByteRanges). This is almost certainly due to the inconsistent file metadata in its database (marked as encrypted but with attributes of an unencrypted file after the overwrite), causing calculations for reading file parts to fail catastrophically. This panic is why rclone receives an "unexpected EOF" (as the connection is abruptly closed) and why the Teldrive UI hangs.

Please see logs below.

Additional observations by the user on Discord:

• Running teldrive check --config=/path/to/config.toml --clean after these steps can mark the problematic file as pending_deletion in the database.
• The issue does not occur if a file originally uploaded unencrypted is then overwritten by an encrypted version. That scenario works as expected.

Repoduction

1. upload test.txt with encryption enabled in teldrive and rclone
2. download with rclone: no issues
3. disable encryption in teldrive ui, restart teldrive server, download with rclone, and check db
4. replace text.txt with encryption disabled in teldrive ui but not rclone (--teldrive-encrypt-files=true): no issues
5. replace test.txt with encryption disabled in both teldrive ui and rclone (--teldrive-encrypt-files=false): cannot read/download the file
6. check teldrive log
7. teldrive.files.encrypted flag in db is still set to true, even though the part is not salted
8. flipping teldrive.files.encrypted does not fix the issue, nor does --teldrive-encrypt-files=true
9. source file (telegram channel) is not encrypted
10. download works again only after teldrive server is restarted once again

Expected behavior

1. upload test.txt with encryption enabled in teldrive and rclone
2. disable encryption in teldrive ui, restart teldrive server
3. replace test.txt with encryption disabled in both teldrive ui and rclone (--teldrive-encrypt-files=false): NO ISSUE
4. check teldrive log: NO ISSUE
5. teldrive.files.encrypted flag in db is set to false
6. source file (telegram channel) is not encrypted
7. download works as normal

Step 3-5.

Version

application	version
teldrive	1.6.17
rclone	1.69.2

Which Platform are you using?

Linux

Additional context

In-depth steps:

1. upload test.txt with encryption enabled in teldrive and rclone: no issues

$ echo $RANDOM >/tmp/test.txt && rclone -vvv -PM copy /tmp/test.txt teldrive-testbench: --teldrive-encrypt-files=true
2025/06/16 21:30:06 DEBUG : rclone: Version "v1.69.2" starting with parameters ["rclone" "-vvv" "-PM" "copy" "/tmp/test.txt" "teldrive-testbench:" "--teldrive-encrypt-files=true"]
2025/06/16 21:30:06 DEBUG : Creating backend with remote "/tmp/test.txt"
2025/06/16 21:30:06 DEBUG : Using config file from "/home/iwconfig/.config/rclone/rclone.conf"
2025/06/16 21:30:06 DEBUG : fs cache: renaming child cache item "/tmp/test.txt" to be canonical for parent "/tmp"
2025/06/16 21:30:06 DEBUG : Creating backend with remote "teldrive-testbench:"
2025/06/16 21:30:06 DEBUG : teldrive-testbench: detected overridden config - adding "{EFBd1}" suffix to name
2025/06/16 21:30:06 DEBUG : Saving config "access_token" in section "teldrive-testbench" of the config file
2025/06/16 21:30:06 DEBUG : Keeping previous permissions for config file: -rw-rw-r--
2025/06/16 21:30:06 DEBUG : fs cache: renaming cache item "teldrive-testbench:" to be canonical "teldrive-testbench{EFBd1}:"
2025/06/16 21:30:06 DEBUG : test.txt: Need to transfer - File not found at Destination
2025/06/16 21:30:07 INFO  : test.txt: Copied (new)
Transferred:              6 B / 6 B, 100%, 0 B/s, ETA -
Transferred:            1 / 1, 100%
Elapsed time:         0.6s
2025/06/16 21:30:07 INFO  : 
Transferred:              6 B / 6 B, 100%, 0 B/s, ETA -
Transferred:            1 / 1, 100%
Elapsed time:         0.6s

2025/06/16 21:30:07 DEBUG : 7 go routines active

2. download with rclone: no issues

$ m -fv /tmp/test.txt && rclone -vvv -PM copy teldrive-testbench:/test.txt /tmp/ --teldrive-encrypt-files=true; head -v /tmp/test.txt
removed '/tmp/test.txt'
2025/06/16 21:33:47 DEBUG : rclone: Version "v1.69.2" starting with parameters ["rclone" "-vvv" "-PM" "copy" "teldrive-testbench:/test.txt" "/tmp/" "--teldrive-encrypt-files=true"]
2025/06/16 21:33:47 DEBUG : Creating backend with remote "teldrive-testbench:/test.txt"
2025/06/16 21:33:47 DEBUG : Using config file from "/home/iwconfig/.config/rclone/rclone.conf"
2025/06/16 21:33:47 DEBUG : teldrive-testbench: detected overridden config - adding "{EFBd1}" suffix to name
2025/06/16 21:33:47 DEBUG : Saving config "access_token" in section "teldrive-testbench" of the config file
2025/06/16 21:33:47 DEBUG : Keeping previous permissions for config file: -rw-rw-r--
2025/06/16 21:33:47 DEBUG : fs cache: renaming child cache item "teldrive-testbench:/test.txt" to be canonical for parent "teldrive-testbench{EFBd1}:"
2025/06/16 21:33:47 DEBUG : Creating backend with remote "/tmp/"
2025/06/16 21:33:47 DEBUG : fs cache: renaming cache item "/tmp/" to be canonical "/tmp"
2025/06/16 21:33:47 DEBUG : test.txt: Need to transfer - File not found at Destination
2025/06/16 21:33:47 DEBUG : test.txt.4cc8d11f.partial: renamed to: test.txt
2025/06/16 21:33:47 INFO  : test.txt: Copied (new)
Transferred:              6 B / 6 B, 100%, 0 B/s, ETA -
Transferred:            1 / 1, 100%
Elapsed time:         0.3s
2025/06/16 21:33:47 INFO  : 
Transferred:              6 B / 6 B, 100%, 0 B/s, ETA -
Transferred:            1 / 1, 100%
Elapsed time:         0.3s

2025/06/16 21:33:47 DEBUG : 7 go routines active
==> /tmp/test.txt <==
18808

3. disable encryption in teldrive ui, restart teldrive, download with rclone, and check db: no issues

select name,encrypted,parts from teldrive.files where type = 'file';

-[ RECORD 1 ]-------------------------------------------------------------------
name      | test.txt
encrypted | t
parts     | [{"id": 24, "salt": "Hv0RLnVr6OfQiuRGs5fnY4QM55fVkBM4opIjKhVcq-w="}]

4. replace text.txt with encryption disabled in teldrive ui but not rclone (--teldrive-encrypt-files=true): no issues

$ echo $RANDOM >/tmp/test.txt && rclone -vvv -PM copy /tmp/test.txt teldrive-testbench: --teldrive-encrypt-files=true
2025/06/16 21:52:52 DEBUG : rclone: Version "v1.69.2" starting with parameters ["rclone" "-vvv" "-PM" "copy" "/tmp/test.txt" "teldrive-testbench:" "--teldrive-encrypt-files=true"]
2025/06/16 21:52:52 DEBUG : Creating backend with remote "/tmp/test.txt"
2025/06/16 21:52:52 DEBUG : Using config file from "/home/iwconfig/.config/rclone/rclone.conf"
2025/06/16 21:52:52 DEBUG : fs cache: renaming child cache item "/tmp/test.txt" to be canonical for parent "/tmp"
2025/06/16 21:52:52 DEBUG : Creating backend with remote "teldrive-testbench:"
2025/06/16 21:52:52 DEBUG : teldrive-testbench: detected overridden config - adding "{EFBd1}" suffix to name
2025/06/16 21:52:52 DEBUG : Saving config "access_token" in section "teldrive-testbench" of the config file
2025/06/16 21:52:52 DEBUG : Keeping previous permissions for config file: -rw-rw-r--
2025/06/16 21:52:52 DEBUG : fs cache: renaming cache item "teldrive-testbench:" to be canonical "teldrive-testbench{EFBd1}:"
2025/06/16 21:52:52 DEBUG : test.txt: Modification times differ by -22m46.684662005s: 2025-06-16 21:52:52.684662005 +0200 CEST, 2025-06-16 19:30:06 +0000 UTC
2025/06/16 21:52:53 INFO  : test.txt: Copied (replaced existing)
Transferred:              6 B / 6 B, 100%, 0 B/s, ETA -
Transferred:            1 / 1, 100%
Elapsed time:         0.8s
2025/06/16 21:52:53 INFO  : 
Transferred:              6 B / 6 B, 100%, 0 B/s, ETA -
Transferred:            1 / 1, 100%
Elapsed time:         0.8s

2025/06/16 21:52:53 DEBUG : 6 go routines active
$ rm -fv /tmp/test.txt && rclone -vvv -PM copy teldrive-testbench:/test.txt /tmp/ --teldrive-encrypt-files=false; head -v /tmp/test.txt
removed '/tmp/test.txt'
2025/06/16 21:52:56 DEBUG : rclone: Version "v1.69.2" starting with parameters ["rclone" "-vvv" "-PM" "copy" "teldrive-testbench:/test.txt" "/tmp/" "--teldrive-encrypt-files=false"]
2025/06/16 21:52:56 DEBUG : Creating backend with remote "teldrive-testbench:/test.txt"
2025/06/16 21:52:56 DEBUG : Using config file from "/home/iwconfig/.config/rclone/rclone.conf"
2025/06/16 21:52:56 DEBUG : Saving config "access_token" in section "teldrive-testbench" of the config file
2025/06/16 21:52:56 DEBUG : Keeping previous permissions for config file: -rw-rw-r--
2025/06/16 21:52:56 DEBUG : fs cache: renaming child cache item "teldrive-testbench:/test.txt" to be canonical for parent "teldrive-testbench:"
2025/06/16 21:52:56 DEBUG : Creating backend with remote "/tmp/"
2025/06/16 21:52:56 DEBUG : fs cache: renaming cache item "/tmp/" to be canonical "/tmp"
2025/06/16 21:52:56 DEBUG : test.txt: Need to transfer - File not found at Destination
2025/06/16 21:52:57 DEBUG : test.txt.a726c5d2.partial: renamed to: test.txt
2025/06/16 21:52:57 INFO  : test.txt: Copied (new)
Transferred:              6 B / 6 B, 100%, 0 B/s, ETA -
Transferred:            1 / 1, 100%
Elapsed time:         0.4s
2025/06/16 21:52:57 INFO  : 
Transferred:              6 B / 6 B, 100%, 0 B/s, ETA -
Transferred:            1 / 1, 100%
Elapsed time:         0.4s

2025/06/16 21:52:57 DEBUG : 7 go routines active
==> /tmp/test.txt <==
22054

5. replace test.txt with encryption disabled in both teldrive ui and rclone (--teldrive-encrypt-files=false): cannot read/download the file

$ echo $RANDOM >/tmp/test.txt && rclone -vvv -PM copy /tmp/test.txt teldrive-testbench: --teldrive-encrypt-files=false
2025/06/16 21:55:30 DEBUG : rclone: Version "v1.69.2" starting with parameters ["rclone" "-vvv" "-PM" "copy" "/tmp/test.txt" "teldrive-testbench:" "--teldrive-encrypt-files=false"]
2025/06/16 21:55:30 DEBUG : Creating backend with remote "/tmp/test.txt"
2025/06/16 21:55:30 DEBUG : Using config file from "/home/iwconfig/.config/rclone/rclone.conf"
2025/06/16 21:55:30 DEBUG : fs cache: renaming child cache item "/tmp/test.txt" to be canonical for parent "/tmp"
2025/06/16 21:55:30 DEBUG : Creating backend with remote "teldrive-testbench:"
2025/06/16 21:55:30 DEBUG : Saving config "access_token" in section "teldrive-testbench" of the config file
2025/06/16 21:55:30 DEBUG : Keeping previous permissions for config file: -rw-rw-r--
2025/06/16 21:55:30 DEBUG : test.txt: Sizes differ (src 5 vs dst 6)
2025/06/16 21:55:31 INFO  : test.txt: Copied (replaced existing)
Transferred:              5 B / 5 B, 100%, 5 B/s, ETA 0s
Transferred:            1 / 1, 100%
Elapsed time:         1.1s
2025/06/16 21:55:31 INFO  : 
Transferred:              5 B / 5 B, 100%, 5 B/s, ETA 0s
Transferred:            1 / 1, 100%
Elapsed time:         1.1s

2025/06/16 21:55:31 DEBUG : 6 go routines active
$ cat /tmp/test.txt
4787
$ rm -fv /tmp/test.txt && rclone -vvv -PM copy teldrive-testbench:/test.txt /tmp/ --teldrive-encrypt-files=false; head -v /tmp/test.txt
removed '/tmp/test.txt'
2025/06/16 21:55:37 DEBUG : rclone: Version "v1.69.2" starting with parameters ["rclone" "-vvv" "-PM" "copy" "teldrive-testbench:/test.txt" "/tmp/" "--teldrive-encrypt-files=false"]
2025/06/16 21:55:37 DEBUG : Creating backend with remote "teldrive-testbench:/test.txt"
2025/06/16 21:55:37 DEBUG : Using config file from "/home/iwconfig/.config/rclone/rclone.conf"
2025/06/16 21:55:37 DEBUG : Saving config "access_token" in section "teldrive-testbench" of the config file
2025/06/16 21:55:37 DEBUG : Keeping previous permissions for config file: -rw-rw-r--
2025/06/16 21:55:37 DEBUG : fs cache: renaming child cache item "teldrive-testbench:/test.txt" to be canonical for parent "teldrive-testbench:"
2025/06/16 21:55:37 DEBUG : Creating backend with remote "/tmp/"
2025/06/16 21:55:37 DEBUG : fs cache: renaming cache item "/tmp/" to be canonical "/tmp"
2025/06/16 21:55:37 DEBUG : test.txt: Need to transfer - File not found at Destination
2025/06/16 21:55:37 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 1/10: unexpected EOF
2025/06/16 21:55:37 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 2/10: unexpected EOF
2025/06/16 21:55:37 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 3/10: unexpected EOF
2025/06/16 21:55:38 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 4/10: unexpected EOF
2025/06/16 21:55:38 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 5/10: unexpected EOF
2025/06/16 21:55:38 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 6/10: unexpected EOF
2025/06/16 21:55:38 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 7/10: unexpected EOF
2025/06/16 21:55:38 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 8/10: unexpected EOF
2025/06/16 21:55:38 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 9/10: unexpected EOF
2025/06/16 21:55:38 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 10/10: unexpected EOF
2025/06/16 21:55:38 DEBUG : test.txt: Reopen failed after offset 0 bytes read: failed to reopen: too many retries
2025/06/16 21:55:38 NOTICE: test.txt.66924a40.partial: Removing partially written file on error: unexpected EOF
2025/06/16 21:55:38 DEBUG : test.txt: Received error: unexpected EOF - low level retry 0/10
2025/06/16 21:55:39 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 1/10: unexpected EOF
2025/06/16 21:55:39 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 2/10: unexpected EOF
2025/06/16 21:55:39 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 3/10: unexpected EOF
2025/06/16 21:55:39 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 4/10: unexpected EOF
2025/06/16 21:55:39 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 5/10: unexpected EOF
2025/06/16 21:55:39 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 6/10: unexpected EOF
2025/06/16 21:55:40 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 7/10: unexpected EOF
2025/06/16 21:55:40 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 8/10: unexpected EOF
2025/06/16 21:55:40 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 9/10: unexpected EOF
2025/06/16 21:55:40 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 10/10: unexpected EOF
2025/06/16 21:55:40 DEBUG : test.txt: Reopen failed after offset 0 bytes read: failed to reopen: too many retries
2025/06/16 21:55:40 NOTICE: test.txt.66924a40.partial: Removing partially written file on error: unexpected EOF
2025/06/16 21:55:40 DEBUG : test.txt: Received error: unexpected EOF - low level retry 1/10
2025/06/16 21:55:40 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 1/10: unexpected EOF
2025/06/16 21:55:40 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 2/10: unexpected EOF
2025/06/16 21:55:41 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 3/10: unexpected EOF
2025/06/16 21:55:41 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 4/10: unexpected EOF
2025/06/16 21:55:41 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 5/10: unexpected EOF
2025/06/16 21:55:41 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 6/10: unexpected EOF
2025/06/16 21:55:41 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 7/10: unexpected EOF
2025/06/16 21:55:41 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 8/10: unexpected EOF
2025/06/16 21:55:42 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 9/10: unexpected EOF
2025/06/16 21:55:42 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 10/10: unexpected EOF
2025/06/16 21:55:42 DEBUG : test.txt: Reopen failed after offset 0 bytes read: failed to reopen: too many retries
2025/06/16 21:55:42 NOTICE: test.txt.66924a40.partial: Removing partially written file on error: unexpected EOF
2025/06/16 21:55:42 DEBUG : test.txt: Received error: unexpected EOF - low level retry 2/10
2025/06/16 21:55:42 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 1/10: unexpected EOF
2025/06/16 21:55:42 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 2/10: unexpected EOF
2025/06/16 21:55:42 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 3/10: unexpected EOF
2025/06/16 21:55:43 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 4/10: unexpected EOF
2025/06/16 21:55:43 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 5/10: unexpected EOF
2025/06/16 21:55:43 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 6/10: unexpected EOF
2025/06/16 21:55:43 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 7/10: unexpected EOF
2025/06/16 21:55:43 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 8/10: unexpected EOF
2025/06/16 21:55:43 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 9/10: unexpected EOF
2025/06/16 21:55:44 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 10/10: unexpected EOF
2025/06/16 21:55:44 DEBUG : test.txt: Reopen failed after offset 0 bytes read: failed to reopen: too many retries
2025/06/16 21:55:44 NOTICE: test.txt.66924a40.partial: Removing partially written file on error: unexpected EOF
2025/06/16 21:55:44 DEBUG : test.txt: Received error: unexpected EOF - low level retry 3/10
2025/06/16 21:55:44 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 1/10: unexpected EOF
2025/06/16 21:55:44 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 2/10: unexpected EOF
2025/06/16 21:55:44 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 3/10: unexpected EOF
2025/06/16 21:55:44 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 4/10: unexpected EOF
2025/06/16 21:55:44 INFO  : Signal received: interrupt
2025/06/16 21:55:44 INFO  : test.txt.66924a40.partial: Removing failed copy
2025/06/16 21:55:44 INFO  : Exiting...
Transferred:              0 B / 5 B, 0%, 0 B/s, ETA -
Transferred:            0 / 1, 0%
Elapsed time:         7.6s
Transferring:
 *                                      test.txt:  0% /5, 0/s, -

6. teldrive log: panics with an "integer divide by zero"

teldrive     |  panic: recovered from errgroup.Group: runtime error: integer divide by zero
teldrive     | goroutine 2014 [running]:
teldrive     | runtime/debug.Stack()
teldrive     |  runtime/debug/stack.go:26 +0x5e
teldrive     | golang.org/x/sync/errgroup.(*Group).add.func1.1()
teldrive     |  golang.org/x/sync@v0.15.0/errgroup/errgroup.go:117 +0x1ff
teldrive     | panic({0x1e31b20?, 0x3c054b0?})
teldrive     |  runtime/panic.go:792 +0x132
teldrive     | github.com/tgdrive/teldrive/internal/reader.calculatePartByteRanges(...)
teldrive     |  github.com/tgdrive/teldrive/internal/reader/reader.go:36
teldrive     | github.com/tgdrive/teldrive/internal/reader.NewLinearReader({0x297a310?, 0xc0015220c0?}, 0xff?, {0x2977960?, 0xc0003c6030?}, 0x3c2c4a0?, {0xc0014e0000?, 0x0?, 0x22032b4?}, 0x0, ...)
teldrive     |  github.com/tgdrive/teldrive/internal/reader/reader.go:71 +0x446
teldrive     | github.com/tgdrive/teldrive/pkg/services.(*extendedService).FilesStream.func2()
teldrive     |  github.com/tgdrive/teldrive/pkg/services/file.go:846 +0x135
teldrive     | github.com/tgdrive/teldrive/pkg/services.(*extendedService).FilesStream.func3({0x21fbf5a?, 0x22032b4?})
teldrive     |  github.com/tgdrive/teldrive/pkg/services/file.go:863 +0x13
teldrive     | github.com/tgdrive/teldrive/pkg/services.(*extendedService).FilesStream.RunWithAuth.func8({0x2979f20, 0xc001520230})
teldrive     |  github.com/tgdrive/teldrive/internal/tgc/run.go:40 +0x5a4
teldrive     | github.com/gotd/td/telegram.(*Client).Run.func3({0x2979f20, 0xc001520230})
teldrive     |  github.com/gotd/td@v0.125.0/telegram/connect.go:173 +0xb4
teldrive     | github.com/gotd/td/tdsync.(*CancellableGroup).Go.func1()
teldrive     |  github.com/gotd/td@v0.125.0/tdsync/cancel_group.go:48 +0x23
teldrive     | golang.org/x/sync/errgroup.(*Group).add.func1()
teldrive     |  golang.org/x/sync@v0.15.0/errgroup/errgroup.go:128 +0x7e
teldrive     | created by golang.org/x/sync/errgroup.(*Group).add in goroutine 2010
teldrive     |  golang.org/x/sync@v0.15.0/errgroup/errgroup.go:96 +0x76
teldrive     |
teldrive     |
teldrive     |  -> golang.org/x/sync/errgroup.(*Group).Wait
teldrive     |  ->   golang.org/x/sync@v0.15.0/errgroup/errgroup.go:70
teldrive     |
teldrive     |     github.com/gotd/td/tdsync.(*CancellableGroup).Wait
teldrive     |       github.com/gotd/td@v0.125.0/tdsync/cancel_group.go:62
teldrive     |     github.com/gotd/td/telegram.(*Client).Run
teldrive     |       github.com/gotd/td@v0.125.0/telegram/connect.go:183
teldrive     |     github.com/tgdrive/teldrive/internal/tgc.RunWithAuth
teldrive     |       github.com/tgdrive/teldrive/internal/tgc/run.go:13
teldrive     |     github.com/tgdrive/teldrive/pkg/services.(*extendedService).FilesStream
teldrive     |       github.com/tgdrive/teldrive/pkg/services/file.go:862
teldrive     |     github.com/tgdrive/teldrive/pkg/services.(*extendedMiddleware).ServeHTTP
teldrive     |       github.com/tgdrive/teldrive/pkg/services/api.go:132
teldrive     |     github.com/tgdrive/teldrive/cmd.setupServer.StripPrefix.func3
teldrive     |       net/http/server.go:2356
teldrive     |     net/http.HandlerFunc.ServeHTTP
teldrive     |       net/http/server.go:2294
teldrive     |     github.com/go-chi/chi/v5.(*Mux).Mount.func1
teldrive     |       github.com/go-chi/chi/v5@v5.2.1/mux.go:327
teldrive     |     net/http.HandlerFunc.ServeHTTP
teldrive     |       net/http/server.go:2294
teldrive     |     github.com/go-chi/chi/v5.(*Mux).routeHTTP
teldrive     |       github.com/go-chi/chi/v5@v5.2.1/mux.go:480
teldrive     |     net/http.HandlerFunc.ServeHTTP
teldrive     |       net/http/server.go:2294
teldrive     |     github.com/tgdrive/teldrive/internal/appcontext.Middleware.func1
teldrive     |       github.com/tgdrive/teldrive/internal/appcontext/appcontext.go:30
teldrive     |     net/http.HandlerFunc.ServeHTTP
teldrive     |       net/http/server.go:2294
teldrive     |     github.com/tgdrive/teldrive/cmd.setupServer.ChizapWithConfig.func2.1
teldrive     |       github.com/tgdrive/teldrive/internal/chizap/chizap.go:109
teldrive     |     net/http.HandlerFunc.ServeHTTP
teldrive     |       net/http/server.go:2294
teldrive     |     github.com/tgdrive/teldrive/cmd.setupServer.InjectLogger.func1.1
teldrive     |       github.com/tgdrive/teldrive/internal/middleware/middleware.go:20
teldrive     |     net/http.HandlerFunc.ServeHTTP
teldrive     |       net/http/server.go:2294
teldrive     |     github.com/go-chi/chi/v5/middleware.RealIP.func1
teldrive     |       github.com/go-chi/chi/v5@v5.2.1/middleware/realip.go:36
teldrive     |     net/http.HandlerFunc.ServeHTTP
teldrive     |       net/http/server.go:2294
teldrive     |     github.com/go-chi/cors.(*Cors).Handler-fm.(*Cors).Handler.func1
teldrive     |       github.com/go-chi/cors@v1.2.1/cors.go:228
teldrive     |     net/http.HandlerFunc.ServeHTTP
teldrive     |       net/http/server.go:2294
teldrive     |     github.com/go-chi/chi/v5/middleware.Recoverer.func1
teldrive     |       github.com/go-chi/chi/v5@v5.2.1/middleware/recoverer.go:45
teldrive     |     net/http.HandlerFunc.ServeHTTP
teldrive     |       net/http/server.go:2294
teldrive     |     github.com/go-chi/chi/v5.(*Mux).ServeHTTP
teldrive     |       github.com/go-chi/chi/v5@v5.2.1/mux.go:90
teldrive     |     net/http.serverHandler.ServeHTTP
teldrive     |       net/http/server.go:3301
teldrive     |     net/http.(*conn).serve
teldrive     |       net/http/server.go:2102
teldrive     |     created by net/http.(*Server).Serve in goroutine 65
teldrive     |       net/http/server.go:3454
teldrive     |
teldrive     | 2025/06/16 21:59:55 http: superfluous response.WriteHeader call from github.com/go-chi/chi/v5/middleware.Recoverer.func1.1 (recoverer.go:40)

7. teldrive.files.encrypted flag in db is still set to true, even though the part is not salted

postgres=# select name,encrypted,parts from teldrive.files where type = 'file';
-[ RECORD 1 ]-----------
name      | test.txt
encrypted | t
parts     | [{"id": 26}]

8. flipping teldrive.files.encrypted does not fix the issue, nor does --teldrive-encrypt-files=true

postgres=# update teldrive.files set encrypted = false where name = 'test.txt';
UPDATE 1
postgres=# select name,encrypted,parts from files where type = 'file';
-[ RECORD 1 ]-----------
name      | test.txt
encrypted | f
parts     | [{"id": 26}]

$ rm -fv /tmp/test.txt && rclone -vvv -PM copy teldrive-testbench:/test.txt /tmp/ --teldrive-encrypt-files=false
2025/06/16 22:12:38 DEBUG : rclone: Version "v1.69.2" starting with parameters ["rclone" "-vvv" "-PM" "copy" "teldrive-testbench:/test.txt" "/tmp/" "--teldrive-encrypt-files=false"]
2025/06/16 22:12:38 DEBUG : Creating backend with remote "teldrive-testbench:/test.txt"
2025/06/16 22:12:38 DEBUG : Using config file from "/home/iwconfig/.config/rclone/rclone.conf"
2025/06/16 22:12:38 DEBUG : Saving config "access_token" in section "teldrive-testbench" of the config file
2025/06/16 22:12:38 DEBUG : Keeping previous permissions for config file: -rw-rw-r--
2025/06/16 22:12:38 DEBUG : fs cache: renaming child cache item "teldrive-testbench:/test.txt" to be canonical for parent "teldrive-testbench:"
2025/06/16 22:12:38 DEBUG : Creating backend with remote "/tmp/"
2025/06/16 22:12:38 DEBUG : fs cache: renaming cache item "/tmp/" to be canonical "/tmp"
2025/06/16 22:12:38 DEBUG : test.txt: Need to transfer - File not found at Destination
2025/06/16 22:12:39 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 1/10: unexpected EOF
2025/06/16 22:12:39 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 2/10: unexpected EOF
2025/06/16 22:12:39 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 3/10: unexpected EOF
2025/06/16 22:12:39 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 4/10: unexpected EOF
2025/06/16 22:12:39 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 5/10: unexpected EOF
2025/06/16 22:12:40 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 6/10: unexpected EOF
2025/06/16 22:12:40 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 7/10: unexpected EOF
2025/06/16 22:12:40 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 8/10: unexpected EOF
2025/06/16 22:12:41 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 9/10: unexpected EOF
2025/06/16 22:12:41 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 10/10: unexpected EOF
2025/06/16 22:12:41 DEBUG : test.txt: Reopen failed after offset 0 bytes read: failed to reopen: too many retries
2025/06/16 22:12:41 NOTICE: test.txt.66924a40.partial: Removing partially written file on error: unexpected EOF
2025/06/16 22:12:41 DEBUG : test.txt: Received error: unexpected EOF - low level retry 0/10
2025/06/16 22:12:41 DEBUG : test.txt: Reopening on read failure after offset 0 bytes: retry 1/10: unexpected EOF

9. source file (telegram channel) is not encrypted: no issues

$ cat 5b765146888a70546e86b57fb4388232 
4787

10. downloading only works again after teldrive server has been restarted once again

root@dev:~/teldrive-testbench# docker compose restart teldrive-server
[+] Restarting 1/1
 ✔ Container teldrive  Started 

$ rm -fv /tmp/test.txt && rclone -vvv -PM copy teldrive-testbench:/test.txt /tmp/ --teldrive-encrypt-files=true; head -v /tmp/test.txt
2025/06/16 22:55:23 DEBUG : rclone: Version "v1.69.2" starting with parameters ["rclone" "-vvv" "-PM" "copy" "teldrive-testbench:/test.txt" "/tmp/" "--teldrive-encrypt-files=true"]
2025/06/16 22:55:23 DEBUG : Creating backend with remote "teldrive-testbench:/test.txt"
2025/06/16 22:55:23 DEBUG : Using config file from "/home/iwconfig/.config/rclone/rclone.conf"
2025/06/16 22:55:23 DEBUG : teldrive-testbench: detected overridden config - adding "{EFBd1}" suffix to name
2025/06/16 22:55:23 DEBUG : Saving config "access_token" in section "teldrive-testbench" of the config file
2025/06/16 22:55:23 DEBUG : Keeping previous permissions for config file: -rw-rw-r--
2025/06/16 22:55:23 DEBUG : fs cache: renaming child cache item "teldrive-testbench:/test.txt" to be canonical for parent "teldrive-testbench{EFBd1}:"
2025/06/16 22:55:23 DEBUG : Creating backend with remote "/tmp/"
2025/06/16 22:55:23 DEBUG : fs cache: renaming cache item "/tmp/" to be canonical "/tmp"
2025/06/16 22:55:23 DEBUG : test.txt: Need to transfer - File not found at Destination
2025/06/16 22:55:23 DEBUG : test.txt.66924a40.partial: renamed to: test.txt
2025/06/16 22:55:23 INFO  : test.txt: Copied (new)
Transferred:              5 B / 5 B, 100%, 0 B/s, ETA -
Transferred:            1 / 1, 100%
Elapsed time:         0.4s
2025/06/16 22:55:23 INFO  : 
Transferred:              5 B / 5 B, 100%, 0 B/s, ETA -
Transferred:            1 / 1, 100%
Elapsed time:         0.4s

2025/06/16 22:55:23 DEBUG : 7 go routines active
==> /tmp/test.txt <==
4787

[iwconfig]

@divyam234 unfortunately, the issue has not been resolved. The bug is still present.

Logs:

(0) Teldrive server restart, and version checks

root@host:/# ssh root@192.168.0.189 -- 'cd /root/teldrive-testbench && docker compose down teldrive-server && docker compose up -d teldrive-server'
Container teldrive Stopping
Container teldrive Stopped
Container teldrive Removing
Container teldrive Removed
Network teldrive-testbench_default Removing
Network teldrive-testbench_default Resource is still in use
Container teldrive-db Running
Container teldrive Creating
Container teldrive Created
Container teldrive Starting
Container teldrive Started

root@host:/# curl -s 'http://192.168.0.189:8585/api/version' | jq
{
"version": "1.6.18",
"commitSHA": "38f24c0",
"goVersion": "go1.24.4",
"os": "linux",
"arch": "amd64"
}

root@host:/# rclone version
rclone v1.70.1
- os/version: debian trixie/sid (64 bit)
- os/kernel: 6.12.25-amd64 (x86_64)
- os/type: linux
- os/arch: amd64
- go/version: go1.24.4
- go/linking: static
- go/tags: none

(1) Upload encrypted

root@host:/# echo $RANDOM | tee /tmp/test17.txt
3296

root@host:/# rclone copy -vvv /tmp/test17.txt teldrive-testbench: --teldrive-encrypt-files=true
2025/06/21 23:15:30 DEBUG : rclone: Version "v1.70.1" starting with parameters ["rclone" "copy" "-vvv" "/tmp/test17.txt" "teldrive-testbench:" "--teldrive-encrypt-files=true"]
2025/06/21 23:15:30 DEBUG : Creating backend with remote "/tmp/test17.txt"
2025/06/21 23:15:30 DEBUG : Using config file from "/root/.config/rclone/rclone.conf"
2025/06/21 23:15:30 DEBUG : fs cache: renaming child cache item "/tmp/test17.txt" to be canonical for parent "/tmp"
2025/06/21 23:15:30 DEBUG : Creating backend with remote "teldrive-testbench:"
2025/06/21 23:15:30 DEBUG : teldrive-testbench: detected overridden config - adding "{EFBd1}" suffix to name
2025/06/21 23:15:30 DEBUG : Saving config "access_token" in section "teldrive-testbench" of the config file
2025/06/21 23:15:30 DEBUG : Keeping previous permissions for config file: -rw-rw-r--
2025/06/21 23:15:30 DEBUG : fs cache: renaming cache item "teldrive-testbench:" to be canonical "teldrive-testbench{EFBd1}:"
2025/06/21 23:15:30 DEBUG : test17.txt: Need to transfer - File not found at Destination
2025/06/21 23:15:31 INFO : test17.txt: Copied (new)
2025/06/21 23:15:31 INFO :
Transferred: 5 B / 5 B, 100%, 0 B/s, ETA -
Transferred: 1 / 1, 100%
Elapsed time: 0.6s

2025/06/21 23:15:31 DEBUG : 6 go routines active

root@host:/# head -v /tmp/test17.txt
==> /tmp/test17.txt <==
3296

root@host:/# ssh root@192.168.0.189 -- "cd /root/teldrive-testbench && /bin/docker compose exec -it teldrive-db psql -d \"\$(awk -F'\"' '/^\s*data-source/{print \$2}' teldrive/config.toml)\" -c \"select name, encrypted, parts from files where name = 'test17.txt';\""
name | encrypted | parts
------------+-----------+-----------------------------------------------------------------------
test17.txt | t | [{"id": 248, "salt": "efp1209Heo5Hg9YmqKhA9RtqMIG_7dLA-x_dg_UU2mw="}]
(1 row)

root@host:/# ssh root@192.168.0.189 -- "cd /root/teldrive-testbench && docker compose logs -n100 teldrive-server" | sed -E 's/(\"id\": |\"channel_id\": |\"user\": |\"bot\": |\"username\": |\"channel\": ) *([^,}]+)/\1\"redacted\"/gi' | cat -n
1 teldrive | 2025/06/21 23:15:30 goose: no migrations to run. current version: 20250408170839
2 teldrive | 21/06/2025 11:15 PM INFO Server started at http://localhost:8080
3 teldrive | 21/06/2025 11:15 PM INFO {"status": 200, "method": "GET", "path": "/api/version", "query": "", "ip": "192.168.0.128:46072", "user-agent": "curl/8.13.0", "latency": 0.000061796, "time": "2025-06-21T21:15:30Z"}
4 teldrive | 21/06/2025 11:15 PM INFO {"status": 200, "method": "GET", "path": "/api/auth/session", "query": "", "ip": "192.168.0.128:46078", "user-agent": "rclone/v1.70.1", "latency": 0.001192551, "time": "2025-06-21T21:15:30Z"}
5 teldrive | 21/06/2025 11:15 PM INFO {"status": 200, "method": "GET", "path": "/api/files", "query": "limit=1&name=test17.txt&operation=find&order=desc&parentId=019635f9-8c17-73ba-8a12-169739ba4beb&sort=id", "ip": "192.168.0.128:46078", "user-agent": "rclone/v1.70.1", "latency": 0.00328818, "time": "2025-06-21T21:15:30Z"}
6 teldrive | 21/06/2025 11:15 PM INFO {"status": 200, "method": "GET", "path": "/api/files", "query": "limit=1&name=test17.txt&operation=find&order=desc&parentId=019635f9-8c17-73ba-8a12-169739ba4beb&sort=id", "ip": "192.168.0.128:46078", "user-agent": "rclone/v1.70.1", "latency": 0.001301905, "time": "2025-06-21T21:15:30Z"}
7 teldrive | 21/06/2025 11:15 PM DEBUG uploading chunk {"fileName": "test17.txt", "partName": "5ea2578fcc37c33041be87ee109c2211", "bot": "redacted", "botNo": 0, "chunkNo": 1, "partSize": 5}
8 teldrive | 21/06/2025 11:15 PM DEBUG User Session {"id": "redacted", "username": "redacted"}
9 teldrive | 21/06/2025 11:15 PM DEBUG upload finished {"fileName": "test17.txt", "partName": "5ea2578fcc37c33041be87ee109c2211", "chunkNo": 1}
10 teldrive | 21/06/2025 11:15 PM INFO {"status": 200, "method": "POST", "path": "/api/uploads/2d25845885fa860f4b8627cef3126d9d", "query": "channelId=0&encrypted=true&fileName=test17.txt&partName=5ea2578fcc37c33041be87ee109c2211&partNo=1", "ip": "192.168.0.128:46078", "user-agent": "rclone/v1.70.1", "latency": 0.48872687, "time": "2025-06-21T21:15:31Z"}
11 teldrive | 21/06/2025 11:15 PM INFO {"status": 201, "method": "POST", "path": "/api/files", "query": "", "ip": "192.168.0.128:46078", "user-agent": "rclone/v1.70.1", "latency": 0.018502165, "time": "2025-06-21T21:15:31Z"}
12 teldrive | 21/06/2025 11:15 PM INFO {"status": 204, "method": "DELETE", "path": "/api/uploads/2d25845885fa860f4b8627cef3126d9d", "query": "", "ip": "192.168.0.128:46078", "user-agent": "rclone/v1.70.1", "latency": 0.002436691, "time": "2025-06-21T21:15:31Z"}
13 teldrive | 21/06/2025 11:15 PM INFO {"status": 200, "method": "GET", "path": "/api/files", "query": "limit=1&name=test17.txt&operation=find&order=desc&parentId=019635f9-8c17-73ba-8a12-169739ba4beb&sort=id", "ip": "192.168.0.128:46078", "user-agent": "rclone/v1.70.1", "latency": 0.002445039, "time": "2025-06-21T21:15:31Z"}

(2) Read encrypted

root@host:/# rm -fv /tmp/test17.txt
removed '/tmp/test17.txt'

root@host:/# rclone copy -vvv teldrive-testbench:/test17.txt /tmp/ --teldrive-encrypt-files=true
2025/06/21 23:15:31 DEBUG : rclone: Version "v1.70.1" starting with parameters ["rclone" "copy" "-vvv" "teldrive-testbench:/test17.txt" "/tmp/" "--teldrive-encrypt-files=true"]
2025/06/21 23:15:31 DEBUG : Creating backend with remote "teldrive-testbench:/test17.txt"
2025/06/21 23:15:31 DEBUG : Using config file from "/root/.config/rclone/rclone.conf"
2025/06/21 23:15:31 DEBUG : teldrive-testbench: detected overridden config - adding "{EFBd1}" suffix to name
2025/06/21 23:15:31 DEBUG : Saving config "access_token" in section "teldrive-testbench" of the config file
2025/06/21 23:15:31 DEBUG : Keeping previous permissions for config file: -rw-rw-r--
2025/06/21 23:15:31 DEBUG : fs cache: renaming child cache item "teldrive-testbench:/test17.txt" to be canonical for parent "teldrive-testbench{EFBd1}:"
2025/06/21 23:15:31 DEBUG : Creating backend with remote "/tmp/"
2025/06/21 23:15:31 DEBUG : fs cache: renaming cache item "/tmp/" to be canonical "/tmp"
2025/06/21 23:15:31 DEBUG : test17.txt: Need to transfer - File not found at Destination
2025/06/21 23:15:32 DEBUG : test17.txt.7a2299af.partial: renamed to: test17.txt
2025/06/21 23:15:32 INFO : test17.txt: Copied (new)
2025/06/21 23:15:32 INFO :
Transferred: 5 B / 5 B, 100%, 0 B/s, ETA -
Transferred: 1 / 1, 100%
Elapsed time: 0.5s

2025/06/21 23:15:32 DEBUG : 7 go routines active

root@host:/# head -v /tmp/test17.txt
==> /tmp/test17.txt <==
3296

root@host:/# ssh root@192.168.0.189 -- "cd /root/teldrive-testbench && /bin/docker compose exec -it teldrive-db psql -d \"\$(awk -F'\"' '/^\s*data-source/{print \$2}' teldrive/config.toml)\" -c \"select name, encrypted, parts from files where name = 'test17.txt';\""
name | encrypted | parts
------------+-----------+-----------------------------------------------------------------------
test17.txt | t | [{"id": 248, "salt": "efp1209Heo5Hg9YmqKhA9RtqMIG_7dLA-x_dg_UU2mw="}]
(1 row)

root@host:/# ssh root@192.168.0.189 -- "cd /root/teldrive-testbench && docker compose logs -n100 teldrive-server" | sed -E 's/(\"id\": |\"channel_id\": |\"user\": |\"bot\": |\"username\": |\"channel\": ) *([^,}]+)/\1\"redacted\"/gi' | cat -n
1 teldrive | 2025/06/21 23:15:30 goose: no migrations to run. current version: 20250408170839
2 teldrive | 21/06/2025 11:15 PM INFO Server started at http://localhost:8080
3 teldrive | 21/06/2025 11:15 PM INFO {"status": 200, "method": "GET", "path": "/api/version", "query": "", "ip": "192.168.0.128:46072", "user-agent": "curl/8.13.0", "latency": 0.000061796, "time": "2025-06-21T21:15:30Z"}
4 teldrive | 21/06/2025 11:15 PM INFO {"status": 200, "method": "GET", "path": "/api/auth/session", "query": "", "ip": "192.168.0.128:46078", "user-agent": "rclone/v1.70.1", "latency": 0.001192551, "time": "2025-06-21T21:15:30Z"}
5 teldrive | 21/06/2025 11:15 PM INFO {"status": 200, "method": "GET", "path": "/api/files", "query": "limit=1&name=test17.txt&operation=find&order=desc&parentId=019635f9-8c17-73ba-8a12-169739ba4beb&sort=id", "ip": "192.168.0.128:46078", "user-agent": "rclone/v1.70.1", "latency": 0.00328818, "time": "2025-06-21T21:15:30Z"}
6 teldrive | 21/06/2025 11:15 PM INFO {"status": 200, "method": "GET", "path": "/api/files", "query": "limit=1&name=test17.txt&operation=find&order=desc&parentId=019635f9-8c17-73ba-8a12-169739ba4beb&sort=id", "ip": "192.168.0.128:46078", "user-agent": "rclone/v1.70.1", "latency": 0.001301905, "time": "2025-06-21T21:15:30Z"}
7 teldrive | 21/06/2025 11:15 PM DEBUG uploading chunk {"fileName": "test17.txt", "partName": "5ea2578fcc37c33041be87ee109c2211", "bot": "redacted", "botNo": 0, "chunkNo": 1, "partSize": 5}
8 teldrive | 21/06/2025 11:15 PM DEBUG User Session {"id": "redacted", "username": "redacted"}
9 teldrive | 21/06/2025 11:15 PM DEBUG upload finished {"fileName": "test17.txt", "partName": "5ea2578fcc37c33041be87ee109c2211", "chunkNo": 1}
10 teldrive | 21/06/2025 11:15 PM INFO {"status": 200, "method": "POST", "path": "/api/uploads/2d25845885fa860f4b8627cef3126d9d", "query": "channelId=0&encrypted=true&fileName=test17.txt&partName=5ea2578fcc37c33041be87ee109c2211&partNo=1", "ip": "192.168.0.128:46078", "user-agent": "rclone/v1.70.1", "latency": 0.48872687, "time": "2025-06-21T21:15:31Z"}
11 teldrive | 21/06/2025 11:15 PM INFO {"status": 201, "method": "POST", "path": "/api/files", "query": "", "ip": "192.168.0.128:46078", "user-agent": "rclone/v1.70.1", "latency": 0.018502165, "time": "2025-06-21T21:15:31Z"}
12 teldrive | 21/06/2025 11:15 PM INFO {"status": 204, "method": "DELETE", "path": "/api/uploads/2d25845885fa860f4b8627cef3126d9d", "query": "", "ip": "192.168.0.128:46078", "user-agent": "rclone/v1.70.1", "latency": 0.002436691, "time": "2025-06-21T21:15:31Z"}
13 teldrive | 21/06/2025 11:15 PM INFO {"status": 200, "method": "GET", "path": "/api/files", "query": "limit=1&name=test17.txt&operation=find&order=desc&parentId=019635f9-8c17-73ba-8a12-169739ba4beb&sort=id", "ip": "192.168.0.128:46078", "user-agent": "rclone/v1.70.1", "latency": 0.002445039, "time": "2025-06-21T21:15:31Z"}
14 teldrive | 21/06/2025 11:15 PM INFO {"status": 200, "method": "GET", "path": "/api/auth/session", "query": "", "ip": "192.168.0.128:46084", "user-agent": "rclone/v1.70.1", "latency": 0.000452649, "time": "2025-06-21T21:15:31Z"}
15 teldrive | 21/06/2025 11:15 PM INFO {"status": 200, "method": "GET", "path": "/api/files", "query": "limit=1&name=test17.txt&operation=find&order=desc&parentId=019635f9-8c17-73ba-8a12-169739ba4beb&sort=id", "ip": "192.168.0.128:46084", "user-agent": "rclone/v1.70.1", "latency": 0.003543512, "time": "2025-06-21T21:15:31Z"}
16 teldrive | 21/06/2025 11:15 PM INFO {"status": 200, "method": "GET", "path": "/api/files", "query": "limit=1&name=test17.txt&operation=find&order=desc&parentId=019635f9-8c17-73ba-8a12-169739ba4beb&sort=id", "ip": "192.168.0.128:46084", "user-agent": "rclone/v1.70.1", "latency": 0.003277054, "time": "2025-06-21T21:15:31Z"}
17 teldrive | 21/06/2025 11:15 PM INFO {"status": 200, "method": "GET", "path": "/api/files", "query": "limit=1&name=test17.txt&operation=find&order=desc&parentId=019635f9-8c17-73ba-8a12-169739ba4beb&sort=id", "ip": "192.168.0.128:46084", "user-agent": "rclone/v1.70.1", "latency": 0.003221494, "time": "2025-06-21T21:15:31Z"}
18 teldrive | 21/06/2025 11:15 PM DEBUG User Session {"id": "redacted", "username": "redacted"}
19 teldrive | 21/06/2025 11:15 PM INFO {"status": 200, "method": "GET", "path": "/api/files/01979458-b5bf-708b-bc32-5532577bf4c9/test17.txt", "query": "", "ip": "192.168.0.128:46084", "user-agent": "rclone/v1.70.1", "latency": 0.569256959, "time": "2025-06-21T21:15:32Z"}

(3) Upload unencrypted

root@host:/# echo $RANDOM | tee /tmp/test17.txt
14132

root@host:/# rclone copy -vvv /tmp/test17.txt teldrive-testbench: --teldrive-encrypt-files=false
2025/06/21 23:15:32 DEBUG : rclone: Version "v1.70.1" starting with parameters ["rclone" "copy" "-vvv" "/tmp/test17.txt" "teldrive-testbench:" "--teldrive-encrypt-files=false"]
2025/06/21 23:15:32 DEBUG : Creating backend with remote "/tmp/test17.txt"
2025/06/21 23:15:32 DEBUG : Using config file from "/root/.config/rclone/rclone.conf"
2025/06/21 23:15:32 DEBUG : fs cache: renaming child cache item "/tmp/test17.txt" to be canonical for parent "/tmp"
2025/06/21 23:15:32 DEBUG : Creating backend with remote "teldrive-testbench:"
2025/06/21 23:15:32 DEBUG : Saving config "access_token" in section "teldrive-testbench" of the config file
2025/06/21 23:15:32 DEBUG : Keeping previous permissions for config file: -rw-rw-r--
2025/06/21 23:15:32 DEBUG : test17.txt: Sizes differ (src 6 vs dst 5)
2025/06/21 23:15:34 INFO : test17.txt: Copied (replaced existing)
2025/06/21 23:15:34 INFO :
Transferred: 6 B / 6 B, 100%, 5 B/s, ETA 0s
Transferred: 1 / 1, 100%
Elapsed time: 1.2s

2025/06/21 23:15:34 DEBUG : 5 go routines active

root@host:/# head -v /tmp/test17.txt
==> /tmp/test17.txt <==
14132

root@host:/# ssh root@192.168.0.189 -- "cd /root/teldrive-testbench && /bin/docker compose exec -it teldrive-db psql -d \"\$(awk -F'\"' '/^\s*data-source/{print \$2}' teldrive/config.toml)\" -c \"select name, encrypted, parts from files where name = 'test17.txt';\""
name | encrypted | parts
------------+-----------+---------------
test17.txt | t | [{"id": 249}]
(1 row)

root@host:/# ssh root@192.168.0.189 -- "cd /root/teldrive-testbench && docker compose logs -n100 teldrive-server" | sed -E 's/(\"id\": |\"channel_id\": |\"user\": |\"bot\": |\"username\": |\"channel\": ) *([^,}]+)/\1\"redacted\"/gi' | cat -n
1 teldrive | 2025/06/21 23:15:30 goose: no migrations to run. current version: 20250408170839
2 teldrive | 21/06/2025 11:15 PM INFO Server started at http://localhost:8080
3 teldrive | 21/06/2025 11:15 PM INFO {"status": 200, "method": "GET", "path": "/api/version", "query": "", "ip": "192.168.0.128:46072", "user-agent": "curl/8.13.0", "latency": 0.000061796, "time": "2025-06-21T21:15:30Z"}
4 teldrive | 21/06/2025 11:15 PM INFO {"status": 200, "method": "GET", "path": "/api/auth/session", "query": "", "ip": "192.168.0.128:46078", "user-agent": "rclone/v1.70.1", "latency": 0.001192551, "time": "2025-06-21T21:15:30Z"}
5 teldrive | 21/06/2025 11:15 PM INFO {"status": 200, "method": "GET", "path": "/api/files", "query": "limit=1&name=test17.txt&operation=find&order=desc&parentId=019635f9-8c17-73ba-8a12-169739ba4beb&sort=id", "ip": "192.168.0.128:46078", "user-agent": "rclone/v1.70.1", "latency": 0.00328818, "time": "2025-06-21T21:15:30Z"}
6 teldrive | 21/06/2025 11:15 PM INFO {"status": 200, "method": "GET", "path": "/api/files", "query": "limit=1&name=test17.txt&operation=find&order=desc&parentId=019635f9-8c17-73ba-8a12-169739ba4beb&sort=id", "ip": "192.168.0.128:46078", "user-agent": "rclone/v1.70.1", "latency": 0.001301905, "time": "2025-06-21T21:15:30Z"}
7 teldrive | 21/06/2025 11:15 PM DEBUG uploading chunk {"fileName": "test17.txt", "partName": "5ea2578fcc37c33041be87ee109c2211", "bot": "redacted", "botNo": 0, "chunkNo": 1, "partSize": 5}
8 teldrive | 21/06/2025 11:15 PM DEBUG User Session {"id": "redacted", "username": "redacted"}
9 teldrive | 21/06/2025 11:15 PM DEBUG upload finished {"fileName": "test17.txt", "partName": "5ea2578fcc37c33041be87ee109c2211", "chunkNo": 1}
10 teldrive | 21/06/2025 11:15 PM INFO {"status": 200, "method": "POST", "path": "/api/uploads/2d25845885fa860f4b8627cef3126d9d", "query": "channelId=0&encrypted=true&fileName=test17.txt&partName=5ea2578fcc37c33041be87ee109c2211&partNo=1", "ip": "192.168.0.128:46078", "user-agent": "rclone/v1.70.1", "latency": 0.48872687, "time": "2025-06-21T21:15:31Z"}
11 teldrive | 21/06/2025 11:15 PM INFO {"status": 201, "method": "POST", "path": "/api/files", "query": "", "ip": "192.168.0.128:46078", "user-agent": "rclone/v1.70.1", "latency": 0.018502165, "time": "2025-06-21T21:15:31Z"}
12 teldrive | 21/06/2025 11:15 PM INFO {"status": 204, "method": "DELETE", "path": "/api/uploads/2d25845885fa860f4b8627cef3126d9d", "query": "", "ip": "192.168.0.128:46078", "user-agent": "rclone/v1.70.1", "latency": 0.002436691, "time": "2025-06-21T21:15:31Z"}
13 teldrive | 21/06/2025 11:15 PM INFO {"status": 200, "method": "GET", "path": "/api/files", "query": "limit=1&name=test17.txt&operation=find&order=desc&parentId=019635f9-8c17-73ba-8a12-169739ba4beb&sort=id", "ip": "192.168.0.128:46078", "user-agent": "rclone/v1.70.1", "latency": 0.002445039, "time": "2025-06-21T21:15:31Z"}
14 teldrive | 21/06/2025 11:15 PM INFO {"status": 200, "method": "GET", "path": "/api/auth/session", "query": "", "ip": "192.168.0.128:46084", "user-agent": "rclone/v1.70.1", "latency": 0.000452649, "time": "2025-06-21T21:15:31Z"}
15 teldrive | 21/06/2025 11:15 PM INFO {"status": 200, "method": "GET", "path": "/api/files", "query": "limit=1&name=test17.txt&operation=find&order=desc&parentId=019635f9-8c17-73ba-8a12-169739ba4beb&sort=id", "ip": "192.168.0.128:46084", "user-agent": "rclone/v1.70.1", "latency": 0.003543512, "time": "2025-06-21T21:15:31Z"}
16 teldrive | 21/06/2025 11:15 PM INFO {"status": 200, "method": "GET", "path": "/api/files", "query": "limit=1&name=test17.txt&operation=find&order=desc&parentId=019635f9-8c17-73ba-8a12-169739ba4beb&sort=id", "ip": "192.168.0.128:46084", "user-agent": "rclone/v1.70.1", "latency": 0.003277054, "time": "2025-06-21T21:15:31Z"}
17 teldrive | 21/06/2025 11:15 PM INFO {"status": 200, "method": "GET", "path": "/api/files", "query": "limit=1&name=test17.txt&operation=find&order=desc&parentId=019635f9-8c17-73ba-8a12-169739ba4beb&sort=id", "ip": "192.168.0.128:46084", "user-agent": "rclone/v1.70.1", "latency": 0.003221494, "time": "2025-06-21T21:15:31Z"}
18 teldrive | 21/06/2025 11:15 PM DEBUG User Session {"id": "redacted", "username": "redacted"}
19 teldrive | 21/06/2025 11:15 PM INFO {"status": 200, "method": "GET", "path": "/api/files/01979458-b5bf-708b-bc32-5532577bf4c9/test17.txt", "query": "", "ip": "192.168.0.128:46084", "user-agent": "rclone/v1.70.1", "latency": 0.569256959, "time": "2025-06-21T21:15:32Z"}
20 teldrive | 21/06/2025 11:15 PM INFO {"status": 200, "method": "GET", "path": "/api/auth/session", "query": "", "ip": "192.168.0.128:46090", "user-agent": "rclone/v1.70.1", "latency": 0.000410614, "time": "2025-06-21T21:15:32Z"}
21 teldrive | 21/06/2025 11:15 PM INFO {"status": 200, "method": "GET", "path": "/api/files", "query": "limit=1&name=test17.txt&operation=find&order=desc&parentId=019635f9-8c17-73ba-8a12-169739ba4beb&sort=id", "ip": "192.168.0.128:46090", "user-agent": "rclone/v1.70.1", "latency": 0.004082108, "time": "2025-06-21T21:15:32Z"}
22 teldrive | 21/06/2025 11:15 PM DEBUG uploading chunk {"fileName": "test17.txt", "partName": "4f7643726bd7a820c42d3db5b03b6848", "bot": "redacted", "botNo": 0, "chunkNo": 1, "partSize": 6}
23 teldrive | 21/06/2025 11:15 PM DEBUG User Session {"id": "redacted", "username": "redacted"}
24 teldrive | 21/06/2025 11:15 PM DEBUG upload finished {"fileName": "test17.txt", "partName": "4f7643726bd7a820c42d3db5b03b6848", "chunkNo": 1}
25 teldrive | 21/06/2025 11:15 PM INFO {"status": 200, "method": "POST", "path": "/api/uploads/bf047e73f1def09762235667b344df6b", "query": "channelId=0&encrypted=false&fileName=test17.txt&partName=4f7643726bd7a820c42d3db5b03b6848&partNo=1", "ip": "192.168.0.128:46090", "user-agent": "rclone/v1.70.1", "latency": 0.728682001, "time": "2025-06-21T21:15:33Z"}
26 teldrive | 21/06/2025 11:15 PM DEBUG User Session {"id": "redacted", "username": "redacted"}
27 teldrive | 21/06/2025 11:15 PM INFO {"status": 204, "method": "PUT", "path": "/api/files/01979458-b5bf-708b-bc32-5532577bf4c9/parts", "query": "", "ip": "192.168.0.128:46090", "user-agent": "rclone/v1.70.1", "latency": 0.471002009, "time": "2025-06-21T21:15:34Z"}

(4) Read unencrypted

root@host:/# rm -fv /tmp/test17.txt
removed '/tmp/test17.txt'

root@host:/# rclone copy -vvv --low-level-retries=1 teldrive-testbench:/test17.txt /tmp/ --teldrive-encrypt-files=false
2025/06/21 23:15:34 DEBUG : rclone: Version "v1.70.1" starting with parameters ["rclone" "copy" "-vvv" "--low-level-retries=1" "teldrive-testbench:/test17.txt" "/tmp/" "--teldrive-encrypt-files=false"]
2025/06/21 23:15:34 DEBUG : Creating backend with remote "teldrive-testbench:/test17.txt"
2025/06/21 23:15:34 DEBUG : Using config file from "/root/.config/rclone/rclone.conf"
2025/06/21 23:15:34 DEBUG : Saving config "access_token" in section "teldrive-testbench" of the config file
2025/06/21 23:15:34 DEBUG : Keeping previous permissions for config file: -rw-rw-r--
2025/06/21 23:15:34 DEBUG : fs cache: renaming child cache item "teldrive-testbench:/test17.txt" to be canonical for parent "teldrive-testbench:"
2025/06/21 23:15:34 DEBUG : Creating backend with remote "/tmp/"
2025/06/21 23:15:34 DEBUG : fs cache: renaming cache item "/tmp/" to be canonical "/tmp"
2025/06/21 23:15:34 DEBUG : test17.txt: Need to transfer - File not found at Destination
2025/06/21 23:15:34 DEBUG : test17.txt: Reopening on read failure after offset 0 bytes: retry 1/1: unexpected EOF
2025/06/21 23:15:34 DEBUG : test17.txt: Reopen failed after offset 0 bytes read: failed to reopen: too many retries
2025/06/21 23:15:34 NOTICE: test17.txt.3166191d.partial: Removing partially written file on error: unexpected EOF
2025/06/21 23:15:34 DEBUG : test17.txt: Received error: unexpected EOF - low level retry 0/1
2025/06/21 23:15:34 ERROR : test17.txt: Failed to copy: unexpected EOF
2025/06/21 23:15:34 ERROR : Attempt 1/3 failed with 1 errors and: unexpected EOF
2025/06/21 23:15:34 DEBUG : test17.txt: Need to transfer - File not found at Destination
2025/06/21 23:15:35 DEBUG : test17.txt: Reopening on read failure after offset 0 bytes: retry 1/1: unexpected EOF
2025/06/21 23:15:35 DEBUG : test17.txt: Reopen failed after offset 0 bytes read: failed to reopen: too many retries
2025/06/21 23:15:35 NOTICE: test17.txt.3166191d.partial: Removing partially written file on error: unexpected EOF
2025/06/21 23:15:35 DEBUG : test17.txt: Received error: unexpected EOF - low level retry 0/1
2025/06/21 23:15:35 ERROR : test17.txt: Failed to copy: unexpected EOF
2025/06/21 23:15:35 ERROR : Attempt 2/3 failed with 1 errors and: unexpected EOF
2025/06/21 23:15:35 DEBUG : test17.txt: Need to transfer - File not found at Destination
2025/06/21 23:15:35 DEBUG : test17.txt: Reopening on read failure after offset 0 bytes: retry 1/1: unexpected EOF
2025/06/21 23:15:35 DEBUG : test17.txt: Reopen failed after offset 0 bytes read: failed to reopen: too many retries
2025/06/21 23:15:35 NOTICE: test17.txt.3166191d.partial: Removing partially written file on error: unexpected EOF
2025/06/21 23:15:35 DEBUG : test17.txt: Received error: unexpected EOF - low level retry 0/1
2025/06/21 23:15:35 ERROR : test17.txt: Failed to copy: unexpected EOF
2025/06/21 23:15:35 ERROR : Attempt 3/3 failed with 1 errors and: unexpected EOF
2025/06/21 23:15:35 INFO :
Transferred: 0 B / 0 B, -, 0 B/s, ETA -
Errors: 1 (retrying may help)
Elapsed time: 0.8s

2025/06/21 23:15:35 DEBUG : 4 go routines active
2025/06/21 23:15:35 NOTICE: Failed to copy: unexpected EOF

root@host:/# head -v /tmp/test17.txt
head: cannot open '/tmp/test17.txt' for reading: No such file or directory

root@host:/# ssh root@192.168.0.189 -- "cd /root/teldrive-testbench && /bin/docker compose exec -it teldrive-db psql -d \"\$(awk -F'\"' '/^\s*data-source/{print \$2}' teldrive/config.toml)\" -c \"select name, encrypted, parts from files where name = 'test17.txt';\""
name | encrypted | parts
------------+-----------+---------------
test17.txt | t | [{"id": 249}]
(1 row)

root@host:/# ssh root@192.168.0.189 -- "cd /root/teldrive-testbench && docker compose logs -n100 teldrive-server" | sed -E 's/(\"id\": |\"channel_id\": |\"user\": |\"bot\": |\"username\": |\"channel\": ) *([^,}]+)/\1\"redacted\"/gi' | cat -n
1 teldrive | github.com/go-chi/chi/v5@v5.2.2/mux.go:90
2 teldrive | net/http.serverHandler.ServeHTTP
3 teldrive | net/http/server.go:3301
4 teldrive | net/http.(*conn).serve
5 teldrive | net/http/server.go:2102
6 teldrive | created by net/http.(*Server).Serve in goroutine 68
7 teldrive | net/http/server.go:3454
8 teldrive |
9 teldrive | 2025/06/21 23:15:35 http: superfluous response.WriteHeader call from github.com/go-chi/chi/v5/middleware.Recoverer.func1.1 (recoverer.go:40)
10 teldrive | 21/06/2025 11:15 PM INFO {"status": 200, "method": "GET", "path": "/api/files", "query": "limit=1&name=test17.txt&operation=find&order=desc&parentId=019635f9-8c17-73ba-8a12-169739ba4beb&sort=id", "ip": "192.168.0.128:46130", "user-agent": "rclone/v1.70.1", "latency": 0.002116285, "time": "2025-06-21T21:15:35Z"}
11 teldrive | 21/06/2025 11:15 PM DEBUG User Session {"id": "redacted", "username": "redacted"}
12 teldrive | 21/06/2025 11:15 PM INFO {"status": 200, "method": "GET", "path": "/api/files/01979458-b5bf-708b-bc32-5532577bf4c9/test17.txt", "query": "", "ip": "192.168.0.128:46130", "user-agent": "rclone/v1.70.1", "latency": 0.240299953, "time": "2025-06-21T21:15:35Z"}
13 teldrive |
14 teldrive | panic: recovered from errgroup.Group: runtime error: integer divide by zero
15 teldrive | goroutine 311 [running]:
16 teldrive | runtime/debug.Stack()
17 teldrive | runtime/debug/stack.go:26 +0x5e
18 teldrive | golang.org/x/sync/errgroup.(*Group).add.func1.1()
19 teldrive | golang.org/x/sync@v0.15.0/errgroup/errgroup.go:117 +0x1ff
20 teldrive | panic({0x1e32bc0?, 0x3c074b0?})
21 teldrive | runtime/panic.go:792 +0x132
22 teldrive | github.com/tgdrive/teldrive/internal/reader.calculatePartByteRanges(...)
23 teldrive | github.com/tgdrive/teldrive/internal/reader/reader.go:36
24 teldrive | github.com/tgdrive/teldrive/internal/reader.NewLinearReader({0x297b830?, 0xc0033a6ed0?}, 0xff?, {0x2978e80?, 0xc0003d6030?}, 0x3c2e4a0?, {0xc000f61d10?, 0x0?, 0x220477b?}, 0x0, ...)
25 teldrive | github.com/tgdrive/teldrive/internal/reader/reader.go:71 +0x446
26 teldrive | github.com/tgdrive/teldrive/pkg/services.(*extendedService).FilesStream.func2()
27 teldrive | github.com/tgdrive/teldrive/pkg/services/file.go:848 +0x135
28 teldrive | github.com/tgdrive/teldrive/pkg/services.(*extendedService).FilesStream.func3({0x21fd421?, 0x220477b?})
29 teldrive | github.com/tgdrive/teldrive/pkg/services/file.go:865 +0x13
30 teldrive | github.com/tgdrive/teldrive/pkg/services.(*extendedService).FilesStream.RunWithAuth.func8({0x297b440, 0xc0000f1220})
31 teldrive | github.com/tgdrive/teldrive/internal/tgc/run.go:40 +0x5a4
32 teldrive | github.com/gotd/td/telegram.(*Client).Run.func3({0x297b440, 0xc0000f1220})
33 teldrive | github.com/gotd/td@v0.125.0/telegram/connect.go:173 +0xb4
34 teldrive | github.com/gotd/td/tdsync.(*CancellableGroup).Go.func1()
35 teldrive | github.com/gotd/td@v0.125.0/tdsync/cancel_group.go:48 +0x23
36 teldrive | golang.org/x/sync/errgroup.(*Group).add.func1()
37 teldrive | golang.org/x/sync@v0.15.0/errgroup/errgroup.go:128 +0x7e
38 teldrive | created by golang.org/x/sync/errgroup.(*Group).add in goroutine 306
39 teldrive | golang.org/x/sync@v0.15.0/errgroup/errgroup.go:96 +0x76
40 teldrive |
41 teldrive |
42 teldrive | -> golang.org/x/sync/errgroup.(*Group).Wait
43 teldrive | -> golang.org/x/sync@v0.15.0/errgroup/errgroup.go:70
44 teldrive |
45 teldrive | github.com/gotd/td/tdsync.(*CancellableGroup).Wait
46 teldrive | github.com/gotd/td@v0.125.0/tdsync/cancel_group.go:62
47 teldrive | github.com/gotd/td/telegram.(*Client).Run
48 teldrive | github.com/gotd/td@v0.125.0/telegram/connect.go:183
49 teldrive | github.com/tgdrive/teldrive/internal/tgc.RunWithAuth
50 teldrive | github.com/tgdrive/teldrive/internal/tgc/run.go:13
51 teldrive | github.com/tgdrive/teldrive/pkg/services.(*extendedService).FilesStream
52 teldrive | github.com/tgdrive/teldrive/pkg/services/file.go:864
53 teldrive | github.com/tgdrive/teldrive/pkg/services.(*extendedMiddleware).ServeHTTP
54 teldrive | github.com/tgdrive/teldrive/pkg/services/api.go:132
55 teldrive | github.com/tgdrive/teldrive/cmd.setupServer.StripPrefix.func3
56 teldrive | net/http/server.go:2356
57 teldrive | net/http.HandlerFunc.ServeHTTP
58 teldrive | net/http/server.go:2294
59 teldrive | github.com/go-chi/chi/v5.(*Mux).Mount.func1
60 teldrive | github.com/go-chi/chi/v5@v5.2.2/mux.go:325
61 teldrive | net/http.HandlerFunc.ServeHTTP
62 teldrive | net/http/server.go:2294
63 teldrive | github.com/go-chi/chi/v5.(*Mux).routeHTTP
64 teldrive | github.com/go-chi/chi/v5@v5.2.2/mux.go:478
65 teldrive | net/http.HandlerFunc.ServeHTTP
66 teldrive | net/http/server.go:2294
67 teldrive | github.com/tgdrive/teldrive/internal/appcontext.Middleware.func1
68 teldrive | github.com/tgdrive/teldrive/internal/appcontext/appcontext.go:30
69 teldrive | net/http.HandlerFunc.ServeHTTP
70 teldrive | net/http/server.go:2294
71 teldrive | github.com/tgdrive/teldrive/cmd.setupServer.ChizapWithConfig.func2.1
72 teldrive | github.com/tgdrive/teldrive/internal/chizap/chizap.go:109
73 teldrive | net/http.HandlerFunc.ServeHTTP
74 teldrive | net/http/server.go:2294
75 teldrive | github.com/tgdrive/teldrive/cmd.setupServer.InjectLogger.func1.1
76 teldrive | github.com/tgdrive/teldrive/internal/middleware/middleware.go:20
77 teldrive | net/http.HandlerFunc.ServeHTTP
78 teldrive | net/http/server.go:2294
79 teldrive | github.com/go-chi/chi/v5/middleware.RealIP.func1
80 teldrive | github.com/go-chi/chi/v5@v5.2.2/middleware/realip.go:36
81 teldrive | net/http.HandlerFunc.ServeHTTP
82 teldrive | net/http/server.go:2294
83 teldrive | github.com/go-chi/cors.(*Cors).Handler-fm.(*Cors).Handler.func1
84 teldrive | github.com/go-chi/cors@v1.2.1/cors.go:228
85 teldrive | net/http.HandlerFunc.ServeHTTP
86 teldrive | net/http/server.go:2294
87 teldrive | github.com/go-chi/chi/v5/middleware.Recoverer.func1
88 teldrive | github.com/go-chi/chi/v5@v5.2.2/middleware/recoverer.go:45
89 teldrive | net/http.HandlerFunc.ServeHTTP
90 teldrive | net/http/server.go:2294
91 teldrive | github.com/go-chi/chi/v5.(*Mux).ServeHTTP
92 teldrive | github.com/go-chi/chi/v5@v5.2.2/mux.go:90
93 teldrive | net/http.serverHandler.ServeHTTP
94 teldrive | net/http/server.go:3301
95 teldrive | net/http.(*conn).serve
96 teldrive | net/http/server.go:2102
97 teldrive | created by net/http.(*Server).Serve in goroutine 68
98 teldrive | net/http/server.go:3454
99 teldrive |
100 teldrive | 2025/06/21 23:15:35 http: superfluous response.WriteHeader call from github.com/go-chi/chi/v5/middleware.Recoverer.func1.1 (recoverer.go:40)

As you can see in (4), it still can't read the file, and Teldrive still throws an error regarding integer division by zero.

Commands for quick reproduction:

FILE=some-test-file.txt
DIR=/tmp
REMOTE=the-teldrive-remote:

# ==== (1) Upload encrypted ====
echo $RANDOM | tee "$DIR/$FILE"
rclone copy -vvv "$DIR/$FILE" $REMOTE --teldrive-encrypt-files=true
head -v "$DIR/$FILE"

# ==== (2) Read encrypted ====
rm -fv "$DIR/$FILE"
rclone copy -vvv "$REMOTE/$FILE" "$DIR/" --teldrive-encrypt-files=true
head -v "$DIR/$FILE"

# ==== (3) Upload unencrypted ====
echo $RANDOM | tee "$DIR/$FILE"
rclone copy -vvv "$DIR/$FILE" $REMOTE --teldrive-encrypt-files=false
head -v "$DIR/$FILE"

# ==== (4) Read unencrypted ====
rm -fv "$DIR/$FILE"
rclone copy -vvv --low-level-retries=1 "$REMOTE/$FILE" "$DIR/" --teldrive-encrypt-files=false
head -v "$DIR/$FILE"

[divyam234]

@iwconfig update to new image its fixed now

[iwconfig]

It's working! Thank you.