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agent: Show just one warning with all failed passphrase constraints.

Browse Source 
* agent/genkey.c (check_passphrase_constraints): Build a final warning
after all checks.
This commit is contained in:
Werner Koch 2014-07-23 19:51:52 +02:00
parent a24510d53b
commit b3378b3a56
1 changed files with 74 additions and 38 deletions
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112
agent/genkey.c
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@ -179,9 +179,12 @@ take_this_one_anyway (ctrl_t ctrl, const char *desc)
int
check_passphrase_constraints (ctrl_t ctrl, const char *pw, int silent)
{
gpg_error_t err;
gpg_error_t err = 0;
unsigned int minlen = opt.min_passphrase_len;
unsigned int minnonalpha = opt.min_passphrase_nonalpha;
char *msg1 = NULL;
char *msg2 = NULL;
char *msg3 = NULL;
if (!pw)
pw = "";
@ -200,52 +203,51 @@ check_passphrase_constraints (ctrl_t ctrl, const char *pw, int silent)
if (silent)
return gpg_error (GPG_ERR_INV_PASSPHRASE);
return take_this_one_anyway2 (ctrl, desc,
err = take_this_one_anyway2 (ctrl, desc,
_("Yes, protection is not needed"));
goto leave;
}
/* Now check the constraints and collect the error messages unless
in in silent mode which returns immediately. */
if (utf8_charcount (pw) < minlen )
{
char *desc;
if (silent)
return gpg_error (GPG_ERR_INV_PASSPHRASE);
{
err = gpg_error (GPG_ERR_INV_PASSPHRASE);
goto leave;
}
desc = xtryasprintf
( ngettext ("Warning: You have entered an insecure passphrase.%%0A"
"A passphrase should be at least %u character long.",
"Warning: You have entered an insecure passphrase.%%0A"
msg1 = xtryasprintf
( ngettext ("A passphrase should be at least %u character long.",
"A passphrase should be at least %u characters long.",
minlen), minlen );
if (!desc)
return gpg_error_from_syserror ();
err = take_this_one_anyway (ctrl, desc);
xfree (desc);
if (err)
return err;
if (!msg1)
{
err = gpg_error_from_syserror ();
goto leave;
}
}
if (nonalpha_count (pw) < minnonalpha )
{
char *desc;
if (silent)
return gpg_error (GPG_ERR_INV_PASSPHRASE);
{
err = gpg_error (GPG_ERR_INV_PASSPHRASE);
goto leave;
}
desc = xtryasprintf
( ngettext ("Warning: You have entered an insecure passphrase.%%0A"
"A passphrase should contain at least %u digit or%%0A"
msg2 = xtryasprintf
( ngettext ("A passphrase should contain at least %u digit or%%0A"
"special character.",
"Warning: You have entered an insecure passphrase.%%0A"
"A passphrase should contain at least %u digits or%%0A"
"special characters.",
minnonalpha), minnonalpha );
if (!desc)
return gpg_error_from_syserror ();
err = take_this_one_anyway (ctrl, desc);
xfree (desc);
if (err)
return err;
if (!msg2)
{
err = gpg_error_from_syserror ();
goto leave;
}
}
/* If configured check the passphrase against a list of known words
@ -255,20 +257,54 @@ check_passphrase_constraints (ctrl_t ctrl, const char *pw, int silent)
if (*pw && opt.check_passphrase_pattern &&
check_passphrase_pattern (ctrl, pw))
{
const char *desc =
/* */ _("Warning: You have entered an insecure passphrase.%%0A"
"A passphrase may not be a known term or match%%0A"
"certain pattern.");
if (silent)
return gpg_error (GPG_ERR_INV_PASSPHRASE);
{
err = gpg_error (GPG_ERR_INV_PASSPHRASE);
goto leave;
}
err = take_this_one_anyway (ctrl, desc);
if (err)
return err;
msg3 = xtryasprintf
(_("A passphrase may not be a known term or match%%0A"
"certain pattern."));
if (!msg3)
{
err = gpg_error_from_syserror ();
goto leave;
}
}
return 0;
if (msg1 || msg2 || msg3)
{
char *msg;
size_t n;
msg = strconcat
(_("Warning: You have entered an insecure passphrase."),
"%0A%0A",
msg1? msg1 : "", msg1? "%0A" : "",
msg2? msg2 : "", msg2? "%0A" : "",
msg3? msg3 : "", msg3? "%0A" : "",
NULL);
if (!msg)
{
err = gpg_error_from_syserror ();
goto leave;
}
/* Strip a trailing "%0A". */
n = strlen (msg);
if (n > 3 && !strcmp (msg + n - 3, "%0A"))
msg[n-3] = 0;
/* Show error messages. */
err = take_this_one_anyway (ctrl, msg);
xfree (msg);
}
leave:
xfree (msg1);
xfree (msg2);
xfree (msg3);
return err;
}