| 1 | package WeBWorK::Authen; |
1 | package WeBWorK::Authen; |
| 2 | |
2 | |
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3 | # Package constants. These should never be changed in other places ever |
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4 | my $key_length = 40; # number of chars in each key |
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5 | my @key_chars = ('A'..'Z', 'a'..'z', '0'..'9', '.', '^', '/', '!', '*'); |
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6 | |
| 3 | sub new($$$) { |
7 | sub new($$$) { |
| 4 | my $proto = shift; |
8 | my $invocant = shift; |
| 5 | my $class = ref($proto) || $proto; |
9 | my $class = ref($invocant) || $invocant; |
| 6 | my $self = {}; |
10 | my $self = {}; |
| 7 | ($self->{r}, $self->{courseEnvironment}) = @_; |
11 | ($self->{r}, $self->{courseEnvironment}) = @_; |
| 8 | bless $self, $class; |
12 | bless $self, $class; |
| 9 | return $self; |
13 | return $self; |
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14 | } |
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15 | |
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16 | sub generate_key { |
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17 | my $i = $key_length; |
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18 | my $key = ''; |
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19 | srand; |
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20 | while($i) { |
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21 | $key .= $key_chars[rand(@key_chars)]; |
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22 | $i--; |
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23 | } |
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24 | return $key; |
| 10 | } |
25 | } |
| 11 | |
26 | |
| 12 | # verify will return 1 if the person is who they say the are. |
27 | # verify will return 1 if the person is who they say the are. |
| 13 | # If the verification failed because of of invalid authentication data, |
28 | # If the verification failed because of of invalid authentication data, |
| 14 | # a note will be written in the request explaining why it failed. |
29 | # a note will be written in the request explaining why it failed. |
| 15 | # If the request failed because no authentication data was provided, however, |
30 | # If the request failed because no authentication data was provided, however, |
| 16 | # no note will be written, as this is expected to happen whenever someone |
31 | # no note will be written, as this is expected to happen whenever someone |
| 17 | # types in a URL manually, and is not considered an error condition. |
32 | # types in a URL manually, and is not considered an error condition. |
| 18 | sub verify($) { |
33 | sub verify($) { |
| 19 | # Definition: "magic data": passwd or key |
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| 20 | my $self = shift; |
34 | my $self = shift; |
| 21 | my $r = $self->{r}; |
35 | my $r = $self->{r}; |
| 22 | |
36 | |
| 23 | my $user = $r->param('user'); |
37 | my $user = $r->param('user'); |
| 24 | my $passwd = $r->param('passwd'); |
38 | my $passwd = $r->param('passwd'); |
| 25 | my $key = $r->param('key'); |
39 | my $key = $r->param('key'); |
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40 | my $time = time; |
| 26 | |
41 | |
| 27 | # Get this out of the way first thing. We don't want anything else |
42 | # Get this out of the way first thing. We don't want anything else |
| 28 | # having access to this. It's bad enough that it goes over the wire |
43 | # having access to this. It's bad enough that it goes over the wire |
| 29 | # plaintext. |
44 | # plaintext. |
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45 | # I wish there was a way to delete this entirely, rather than just |
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46 | # undefining it, just because it would be neater. |
| 30 | $r->param('passwd',undef); |
47 | $r->param('passwd',undef); |
| 31 | |
48 | |
| 32 | my $return, $error; |
49 | my $return, $error; |
| 33 | |
50 | |
| 34 | # The first part of this big conditional checks to make that we have |
51 | # The first part of this big conditional checks to make that we have |
| … | |
… | |
| 52 | elsif ($user ne "dennis") { |
69 | elsif ($user ne "dennis") { |
| 53 | $error = "Unknown user"; |
70 | $error = "Unknown user"; |
| 54 | $return = 0; |
71 | $return = 0; |
| 55 | } elsif ($passwd) { |
72 | } elsif ($passwd) { |
| 56 | if ($passwd eq "helloworld") { |
73 | if ($passwd eq "helloworld") { |
| 57 | $r->param('key','tH1siS@pH0n3Yk3y'); |
74 | $key = generate_key; |
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75 | #TODO: enter $key and $time into the database |
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76 | $r->param('key',$key); |
| 58 | $return = 1; |
77 | $return = 1; |
| 59 | } else { |
78 | } else { |
| 60 | $error = "Incorrect password"; |
79 | $error = "Incorrect password"; |
| 61 | $return = 0; |
80 | $return = 0; |
| 62 | } |
81 | } |
| 63 | } elsif ($key) { |
82 | } elsif ($key) { |
| 64 | if ($key eq 'tH1siS@pH0n3Yk3y') { |
83 | if ($key ne 'invalidkeyhahaha') { |
| 65 | $return = 1; |
84 | $return = 1; |
| 66 | } else { |
85 | } else { |
| 67 | $error = "Your session has expired. You must re-login"; |
86 | $error = "Your session has expired. You must re-login"; |
| 68 | $return = 0; |
87 | $return = 0; |
| 69 | } |
88 | } |
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