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Code Issues Releases Wiki Activity

Improve the quality of SSH error messages

Browse source 
Summary: See PHI1784. Currently, users who pass an invalid SSH command to Phabricator's SSH handler get an unhelpful error message. Make it more helpful.

Test Plan: Ran `./bin/ssh-exec` with no arguments (old, helpful error), invalid arguments (before: unhelpful error; after: helpful error), and valid arguments (old, helpful behavior).

Differential Revision: https://secure.phabricator.com/D21362
This commit is contained in:
epriestley 2020-06-16 08:43:25 -07:00
parent 8c7f114b4d
commit 9ce1271805
1 changed files with 36 additions and 15 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

51
scripts/ssh/ssh-exec.php
View file

@ -211,21 +211,29 @@ try {
->setUniqueMethod('getName')
->execute();
$command_list = array_keys($workflows);
$command_list = implode(', ', $command_list);
$error_lines = array();
$error_lines[] = pht('Welcome to Phabricator.');
$error_lines[] = pht(
'You are logged in as %s.',
$user_name);
if (!$original_argv) {
throw new Exception(
pht(
"Welcome to Phabricator.\n\n".
"You are logged in as %s.\n\n".
"You haven't specified a command to run. This means you're requesting ".
"an interactive shell, but Phabricator does not provide an ".
"interactive shell over SSH.\n\n".
"Usually, you should run a command like `%s` or `%s` ".
"rather than connecting directly with SSH.\n\n".
"Supported commands are: %s.",
$user_name,
'git clone',
'hg push',
implode(', ', array_keys($workflows))));
$error_lines[] = pht(
'You have not specified a command to run. This means you are requesting '.
'an interactive shell, but Phabricator does not provide interactive '.
'shells over SSH.');
$error_lines[] = pht(
'(Usually, you should run a command like "git clone" or "hg push" '.
'instead of connecting directly with SSH.)');
$error_lines[] = pht(
'Supported commands are: %s.',
$command_list);
$error_lines = implode("\n\n", $error_lines);
throw new PhutilArgumentUsageException($error_lines);
}
$log_argv = implode(' ', $original_argv);
@ -247,7 +255,20 @@ try {
$parsed_args = new PhutilArgumentParser($parseable_argv);
if (empty($workflows[$command])) {
throw new Exception(pht('Invalid command.'));
$error_lines[] = pht(
'You have specified the command "%s", but that command is not '.
'supported by Phabricator. As received by Phabricator, your entire '.
'argument list was:',
$command);
$error_lines[] = csprintf(' $ ssh ... -- %Ls', $parseable_argv);
$error_lines[] = pht(
'Supported commands are: %s.',
$command_list);
$error_lines = implode("\n\n", $error_lines);
throw new PhutilArgumentUsageException($error_lines);
}
$workflow = $parsed_args->parseWorkflows($workflows);