1: # The LearningOnline Network with CAPA
2: # Handler to retrieve an old version of a file
3: #
4: # (Publication Handler
5: #
6: # (TeX Content Handler
7: #
8: # 05/29/00,05/30,10/11 Gerd Kortemeyer)
9: #
10: # 11/28,11/29,11/30,12/01,12/02,12/04,12/23 Gerd Kortemeyer
11: # 03/23 Guy Albertelli
12: # 03/24,03/29 Gerd Kortemeyer)
13: #
14: # 03/31,04/03,05/02 Gerd Kortemeyer
15:
16: package Apache::lonretrieve;
17:
18: use strict;
19: use Apache::File;
20: use File::Copy;
21: use Apache::Constants qw(:common :http :methods);
22:
23: sub phaseone {
24: my ($r,$fn,$uname,$udom)=@_;
25: my $docroot=$r->dir_config('lonDocRoot');
26:
27: my $urldir='/res/'.$udom.'/'.$uname.$fn;
28: $urldir=~s/\/[^\/]+$/\//;
29:
30: my $resfn=$docroot.'/res/'.$udom.'/'.$uname.$fn;
31: my $resdir=$resfn;
32: $resdir=~s/\/[^\/]+$/\//;
33:
34: $fn=~/\/([^\/]+)\.(\w+)$/;
35: my $main=$1;
36: my $suffix=$2;
37:
38: if (-e $resfn) {
39: $r->print('<form action=/adm/retrieve method=post>'.
40: '<input type=hidden name=filename value="'.$fn.'">'.
41: '<input type=hidden name=phase value=two>'.
42: '<table border=2><tr><th>Select</th><th>Version</th>'.
43: '<th>Became this version on ...</th>'.
44: '<th>Metadata</th></tr>');
45: my $filename;
46: opendir(DIR,$resdir);
47: while ($filename=readdir(DIR)) {
48: if ($filename=~/^$main\.(\d+)\.$suffix$/) {
49: my $version=$1;
50: my ($rdev,$rino,$rmode,$rnlink,
51: $ruid,$rgid,$rrdev,$rsize,
52: $ratime,$rmtime,$rctime,
53: $rblksize,$rblocks)=stat($resdir.'/'.$filename);
54: $r->print('<tr><td><input type=radio name=version value="'.
55: $version.'"></td><th>'.$version.'</th><td>'.
56: localtime($rmtime).'</td><td>'.
57: '<a href="'.$urldir.$filename.'.meta" target=cat>'.
58: 'Metadata Version '.$version.'</a>');
59: if (&Apache::lonnet::fileembstyle($suffix) eq 'ssi') {
60: $r->print(
61: ' <a target=cat href="/adm/diff?filename='.$fn.
62: '&versionone=priv&versiontwo='.$version.
63: '">Diffs with Version '.$version.'</a>');
64: }
65: $r->print('</a></td></tr>');
66: }
67: }
68: closedir(DIR);
69: my ($rdev,$rino,$rmode,$rnlink,
70: $ruid,$rgid,$rrdev,$rsize,
71: $ratime,$rmtime,$rctime,
72: $rblksize,$rblocks)=stat($resfn);
73: $r->print('<tr><td><input type=radio name=version value="new"></td>'.
74: '<th>Current</th><td>'.localtime($rmtime).
75: '</td><td><a href="'.$urldir.$main.'.'.$suffix.'.meta" target=cat>'.
76: 'Metadata current version</a>');
77: if (&Apache::lonnet::fileembstyle($suffix) eq 'ssi') {
78: $r->print(
79: ' <a target=cat href="/adm/diff?filename='.$fn.
80: '&versionone=priv'.
81: '">Diffs with current Version</a>');
82: }
83: $r->print('</td></tr></table><p>'.
84: '<font size=+1 color=red>Retrieval of an old version will '.
85: 'overwrite the file currently in construction space</font><p>'.
86: '<input type=submit value="Retrieve version"></form>');
87: } else {
88: $r->print('<h3>No previous versions published.</h3>');
89: }
90: }
91:
92: sub phasetwo {
93: my ($r,$fn,$uname,$udom)=@_;
94: if ($ENV{'form.version'}) {
95: my $version=$ENV{'form.version'};
96: if ($version eq 'new') {
97: $r->print('<h3>Retrieving current (most recent) version</h3>');
98: } else {
99: $r->print('<h3>Retrieving old version '.$version.'</h3>');
100: }
101: my $logfile;
102: my $ctarget='/home/'.$uname.'/public_html'.$fn;
103: my $vfn=$fn;
104: if ($version ne 'new') {
105: $vfn=~s/\.(\w+)$/\.$version\.$1/;
106: }
107: my $csource=$r->dir_config('lonDocRoot').'/res/'.$udom.'/'.$uname.$vfn;
108: unless ($logfile=Apache::File->new('>>'.$ctarget.'.log')) {
109: $r->print(
110: '<font color=red>No write permission to user directory, FAIL</font>');
111: }
112: print $logfile
113: "\n\n================= Retrieve ".localtime()." ================\n".
114: "Version: $version\nSource: $csource\nTarget: $ctarget\n";
115: $r->print('<p>Copying file: ');
116: if (copy($csource,$ctarget)) {
117: $r->print('ok<p>');
118: print $logfile "Copied sucessfully.\n\n";
119: } else {
120: my $error=$!;
121: $r->print('fail, '.$error.'<p>');
122: print $logfile "Copy failed: $error\n\n";
123: }
124: $r->print('<font size=+2><a href="/priv/'.$uname.$fn.
125: '">Back to '.$fn.'</a></font>');
126: } else {
127: $r->print(
128: '<font size=+1 color=red>Please pick a version to retrieve</font><p>');
129: &phaseone($r,$fn,$uname,$udom);
130: }
131: }
132:
133: sub handler {
134:
135: my $r=shift;
136:
137: my $fn;
138:
139: if ($ENV{'form.filename'}) {
140: $fn=$ENV{'form.filename'};
141: $fn=~s/^http\:\/\/[^\/]+\/\~(\w+)//;
142: } else {
143: $r->log_reason($ENV{'user.name'}.' at '.$ENV{'user.domain'}.
144: ' unspecified filename for retrieval', $r->filename);
145: return HTTP_NOT_FOUND;
146: }
147:
148: unless ($fn) {
149: $r->log_reason($ENV{'user.name'}.' at '.$ENV{'user.domain'}.
150: ' trying to retrieve non-existing file', $r->filename);
151: return HTTP_NOT_FOUND;
152: }
153:
154: # ----------------------------------------------------------- Start page output
155:
156: my $uname=$ENV{'user.name'};
157: my $udom=$ENV{'user.domain'};
158:
159: $r->content_type('text/html');
160: $r->send_http_header;
161:
162: $r->print('<html><head><title>LON-CAPA Construction Space</title></head>');
163:
164: $r->print(
165: '<body bgcolor="#FFFFFF"><img align=right src=/adm/lonIcons/lonlogos.gif>');
166:
167:
168: $r->print('<h1>Retrieve previous versions of <tt>'.$fn.'</tt></h1>');
169:
170: if ($ENV{'form.phase'} eq 'two') {
171: &phasetwo($r,$fn,$uname,$udom);
172: } else {
173: &phaseone($r,$fn,$uname,$udom);
174: }
175:
176: $r->print('</body></html>');
177: return OK;
178: }
179:
180: 1;
181: __END__
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to lonretrieve.pm CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / publisher