1: # The LearningOnline Network with CAPA
2: # Handler to upload files into construction space
3: #
4: # (Handler to retrieve an old version of a file
5: #
6: # (Publication Handler
7: #
8: # (TeX Content Handler
9: #
10: # 05/29/00,05/30,10/11 Gerd Kortemeyer)
11: #
12: # 11/28,11/29,11/30,12/01,12/02,12/04,12/23 Gerd Kortemeyer
13: # 03/23 Guy Albertelli
14: # 03/24,03/29 Gerd Kortemeyer)
15: #
16: # 03/31,04/03 Gerd Kortemeyer)
17: #
18: # 04/05 Gerd Kortemeyer
19:
20: package Apache::lonupload;
21:
22: use strict;
23: use Apache::File;
24: use File::Copy;
25: use Apache::Constants qw(:common :http :methods);
26:
27: sub phaseone {
28: my ($r,$fn,$uname,$udom)=@_;
29: my $docroot=$r->dir_config('lonDocRoot');
30:
31: my $urldir='/res/'.$udom.'/'.$uname.$fn;
32: $urldir=~s/\/[^\/]+$/\//;
33:
34: my $resfn=$docroot.'/res/'.$udom.'/'.$uname.$fn;
35: my $resdir=$resfn;
36: $resdir=~s/\/[^\/]+$/\//;
37:
38: $fn=~/^\/(.+)\.(\w+)$/;
39: my $main=$1;
40: my $suffix=$2;
41:
42: $r->print('<form action=/adm/retrieve method=post>'.
43: '<input type=hidden name=filename value="'.$fn.'">'.
44: '<input type=hidden name=phase value=two>'.
45: '<table border=2><tr><th>Select</th><th>Version</th>'.
46: '<th>Became this version on ...</th>'.
47: '<th>Metadata</th></tr>');
48: my $filename;
49: opendir(DIR,$resdir);
50: while ($filename=readdir(DIR)) {
51: if ($filename=~/^$main\.(\d+)\.$suffix$/) {
52: my $version=$1;
53: my ($rdev,$rino,$rmode,$rnlink,
54: $ruid,$rgid,$rrdev,$rsize,
55: $ratime,$rmtime,$rctime,
56: $rblksize,$rblocks)=stat($resdir.'/'.$filename);
57: $r->print('<tr><td><input type=radio name=version value="'.
58: $version.'"></td><th>'.$version.'</th><td>'.
59: localtime($rmtime).'</td><td>'.
60: '<a href="'.$urldir.$filename.'.meta" target=cat>'.
61: 'Metadata Version '.$version.'</a></td></tr>');
62: }
63: }
64: closedir(DIR);
65: my ($rdev,$rino,$rmode,$rnlink,
66: $ruid,$rgid,$rrdev,$rsize,
67: $ratime,$rmtime,$rctime,
68: $rblksize,$rblocks)=stat($resfn);
69: $r->print('<tr><td><input type=radio name=version value="new"></td>'.
70: '<th>Current</th><td>'.localtime($rmtime).
71: '</td><td><a href="'.$urldir.$main.'.'.$suffix.'.meta" target=cat>'.
72: 'Metadata current version</a></td></tr></table><p>'.
73: '<font size=+1 color=red>Retrieval of an old version will '.
74: 'overwrite the file currently in construction space</font><p>'.
75: '<input type=submit value="Retrieve version"></form>');
76: }
77:
78: sub phasetwo {
79: my ($r,$fn,$uname,$udom)=@_;
80: if ($ENV{'form.version'}) {
81: my $version=$ENV{'form.version'};
82: if ($version eq 'new') {
83: $r->print('<h3>Retrieving current (most recent) version</h3>');
84: } else {
85: $r->print('<h3>Retrieving old version '.$version.'</h3>');
86: }
87: my $logfile;
88: my $ctarget='/home/'.$uname.'/public_html'.$fn;
89: my $vfn=$fn;
90: if ($version ne 'new') {
91: $vfn=~s/\.(\w+)$/\.$version\.$1/;
92: }
93: my $csource=$r->dir_config('lonDocRoot').'/res/'.$udom.'/'.$uname.$vfn;
94: unless ($logfile=Apache::File->new('>>'.$ctarget.'.log')) {
95: $r->print(
96: '<font color=red>No write permission to user directory, FAIL</font>');
97: }
98: print $logfile
99: "\n\n================= Retrieve ".localtime()." ================\n".
100: "Version: $version\nSource: $csource\nTarget: $ctarget\n";
101: $r->print('<p>Copying file: ');
102: if (copy($csource,$ctarget)) {
103: $r->print('ok<p>');
104: print $logfile "Copied sucessfully.\n\n";
105: } else {
106: my $error=$!;
107: $r->print('fail, '.$error.'<p>');
108: print $logfile "Copy failed: $error\n\n";
109: }
110: $r->print('<font size=+2><a href="/priv/'.$uname.$fn.
111: '">Back to '.$fn.'</a></font>');
112: } else {
113: $r->print(
114: '<font size=+1 color=red>Please pick a version to retrieve</font><p>');
115: &phaseone($r,$fn,$uname,$udom);
116: }
117: }
118:
119: sub handler {
120:
121: my $r=shift;
122:
123: my $fn;
124:
125: if ($ENV{'form.filename'}) {
126: $fn=$ENV{'form.filename'};
127: $fn=~s/^http\:\/\/[^\/]+\/\~(\w+)//;
128: } else {
129: $r->log_reason($ENV{'user.name'}.' at '.$ENV{'user.domain'}.
130: ' unspecified filename for retrieval', $r->filename);
131: return HTTP_NOT_FOUND;
132: }
133:
134: unless ($fn) {
135: $r->log_reason($ENV{'user.name'}.' at '.$ENV{'user.domain'}.
136: ' trying to retrieve non-existing file', $r->filename);
137: return HTTP_NOT_FOUND;
138: }
139:
140: # ----------------------------------------------------------- Start page output
141:
142: my $uname=$ENV{'user.name'};
143: my $udom=$ENV{'user.domain'};
144:
145: $r->content_type('text/html');
146: $r->send_http_header;
147:
148: $r->print('<html><head><title>LON-CAPA Construction Space</title></head>');
149:
150: $r->print(
151: '<body bgcolor="#FFFFFF"><img align=right src=/adm/lonIcons/lonlogos.gif>');
152:
153:
154: $r->print('<h1>Retrieve previous versions of <tt>'.$fn.'</tt></h1>');
155:
156: if ($ENV{'form.phase'} eq 'two') {
157: &phasetwo($r,$fn,$uname,$udom);
158: } else {
159: &phaseone($r,$fn,$uname,$udom);
160: }
161:
162: $r->print('</body></html>');
163: return OK;
164: }
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>