PHP exec abbreviates and cut output made by unbuffer?

PHP
1

Hi all,

I try to catch and save in a log file the output of LFTP using unbuffer, because seems impossible to get it via other ways, namely the usual > logfile.txt

Certainly the format shown in the shell is what I prefer because other dialogs (like using --log= or
xfer:log-file) don’t show the information about the progress so good as is shown in the shell.

Let me show you all the line I’m using …

unbuffer lftp -e “set ssl:verify-certificate no; set ftp:ssl-protect-data yes; set ftp:ssl-protect-list yes; mirror --reverse /path/to/send folder_to_receive_files ; quit” -u user@server.com,password ftp.server.com > mylog.log 2>&1

In the shell (I’m using Ubuntu) and using unbuffer I get the output well …

[code]mkdir folder_to_receive_files' [Connecting...] mkdir folder_to_receive_files’ [Waiting for response…]

Transferring file OctoCod_1920x1080_Hitman.hevc.good.mp4' OctoCod_1920x1080_Hitman.hevc.good.mp4’ at 0 (0%) [Waiting for response…]
OctoCod_1920x1080_Hitman.hevc.good.mp4' at 76744 (0%) [Sending data] OctoCod_1920x1080_Hitman.hevc.good.mp4’ at 608160 (2%) 397.4K/s eta:58s [Sending data]
… etc …[/code]

BUT this is the problem!! …

Passing above set of LFTP commands through PHP exec, namely exec('unbuffer lftp -e "set ssl:verify-certificate no; set… etc, etc);

I cannot get the right dialog, but I get a cut version of the full dialog, like that …

mkdir `folder_to_receive_files' [Connecting...] mkdir `folder_to_receive_files' [Waiting for response...] `...d_1920x1080_Hitman.hevc.mp4' at 0 (0%) [Waiting for response...] `...d_1920x1080_Hitman.hevc.mp4' at 125976 (0%) [Sending data] `...d_1920x1080_Hitman.hevc.mp4' at 660288 (2%) 431.4K/s eta:63s [Sending data] `...d_1920x1080_Hitman.hevc.mp4' at 1211976 (4%) 492.7K/s eta:54s [Sending data `...d_1920x1080_Hitman.hevc.mp4' at 1785384 (6%) 579.6K/s eta:45s [Sending data `...d_1920x1080_Hitman.hevc.mp4' at 2358792 (8%) 607.8K/s eta:42s [Sending data `...d_1920x1080_Hitman.hevc.mp4' at 2932200 (10%) 619.6K/s eta:40s [Sending dat `...d_1920x1080_Hitman.hevc.mp4' at 3505608 (12%) 639.3K/s eta:38s [Sending dat `...d_1920x1080_Hitman.hevc.mp4' at 4079016 (14%) 634.0K/s eta:38s [Sending dat

It’s something strange and is making me crazy. I have been two full days fighting against this problem.

Anyone has some idea about what is happening?

Thank you very much in advance for your help.

2

So show us your code, for starters [censored, obviously, for passwords/servers etc].

3

The code is like that …

$command = 'unbuffer lftp -e "set ssl:verify-certificate no; set ftp:ssl-protect-data yes; set ftp:ssl-protect-list yes; mirror --reverse /path/to/send folder_to_receive_files ; quit" -u user@server.com,password ftp.server.com > mylog.log 2>&1'; exec($command);

4

Have you tried actually using the [FPHP]exec[/FPHP] optional parameters to capture?

5

Yes I used the other parameters of exec and I cannot capture anything, seems that LFTP doesn’t send to stdout and because of this, people has to use unbuffer from expect-dev packet (you know: apt-get install expect-dev)

6

Right, but since unbuffer sends to stdout, you should be able to capture unbuffer’s output using the optional parameter, as llong as you dont pipe the output into a file in your command.

7

As I mentioned, in the shell, unbuffer works well, but when is passed through PHP exec, shell_exec or system, the string are chunked.

8

OK I understand.

And … is it possible to write stdout from exec on-the-fly on some file? It’s because I will show the LFTP progress dialog in a web.

9

Yes, I got the output from exec without enabling the pipe and is chunked unfortunately.

Seems that in the moment that stdout from unbuffer goes through PHP, strings are cutting up, and I don’t know why!! :frowning:

Any help is welcome, indeed.

10

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