Annotation of loncom/publisher/lonretrieve.pm, revision 1.8
1.1 www 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: #
1.8 ! www 14: # 03/31,04/03,05/02 Gerd Kortemeyer
1.1 www 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:
1.2 www 23: sub phaseone {
24: my ($r,$fn,$uname,$udom)=@_;
25: my $docroot=$r->dir_config('lonDocRoot');
26:
1.3 www 27: my $urldir='/res/'.$udom.'/'.$uname.$fn;
28: $urldir=~s/\/[^\/]+$/\//;
29:
30: my $resfn=$docroot.'/res/'.$udom.'/'.$uname.$fn;
31: my $resdir=$resfn;
1.2 www 32: $resdir=~s/\/[^\/]+$/\//;
33:
1.6 www 34: $fn=~/\/([^\/]+)\.(\w+)$/;
1.2 www 35: my $main=$1;
36: my $suffix=$2;
1.6 www 37:
38: if (-e $resfn) {
1.3 www 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>');
1.2 www 45: my $filename;
46: opendir(DIR,$resdir);
47: while ($filename=readdir(DIR)) {
48: if ($filename=~/^$main\.(\d+)\.$suffix$/) {
1.3 www 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.$filename.'.meta" target=cat>'.
1.8 ! www 58: 'Metadata Version '.$version);
! 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: $r->print('</a></td></tr>');
1.2 www 66: }
67: }
68: closedir(DIR);
1.3 www 69: my ($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></td></tr></table><p>'.
1.4 www 77: '<font size=+1 color=red>Retrieval of an old version will '.
78: 'overwrite the file currently in construction space</font><p>'.
1.3 www 79: '<input type=submit value="Retrieve version"></form>');
1.6 www 80: } else {
81: $r->print('<h3>No previous versions published.</h3>');
82: }
1.2 www 83: }
1.1 www 84:
1.4 www 85: sub phasetwo {
86: my ($r,$fn,$uname,$udom)=@_;
87: if ($ENV{'form.version'}) {
88: my $version=$ENV{'form.version'};
89: if ($version eq 'new') {
90: $r->print('<h3>Retrieving current (most recent) version</h3>');
91: } else {
92: $r->print('<h3>Retrieving old version '.$version.'</h3>');
93: }
94: my $logfile;
95: my $ctarget='/home/'.$uname.'/public_html'.$fn;
1.5 www 96: my $vfn=$fn;
97: if ($version ne 'new') {
98: $vfn=~s/\.(\w+)$/\.$version\.$1/;
99: }
100: my $csource=$r->dir_config('lonDocRoot').'/res/'.$udom.'/'.$uname.$vfn;
1.4 www 101: unless ($logfile=Apache::File->new('>>'.$ctarget.'.log')) {
102: $r->print(
103: '<font color=red>No write permission to user directory, FAIL</font>');
104: }
105: print $logfile
106: "\n\n================= Retrieve ".localtime()." ================\n".
1.5 www 107: "Version: $version\nSource: $csource\nTarget: $ctarget\n";
108: $r->print('<p>Copying file: ');
109: if (copy($csource,$ctarget)) {
110: $r->print('ok<p>');
111: print $logfile "Copied sucessfully.\n\n";
112: } else {
113: my $error=$!;
114: $r->print('fail, '.$error.'<p>');
115: print $logfile "Copy failed: $error\n\n";
116: }
117: $r->print('<font size=+2><a href="/priv/'.$uname.$fn.
118: '">Back to '.$fn.'</a></font>');
1.4 www 119: } else {
120: $r->print(
121: '<font size=+1 color=red>Please pick a version to retrieve</font><p>');
122: &phaseone($r,$fn,$uname,$udom);
123: }
124: }
125:
1.1 www 126: sub handler {
127:
128: my $r=shift;
129:
130: my $fn;
131:
132: if ($ENV{'form.filename'}) {
133: $fn=$ENV{'form.filename'};
1.2 www 134: $fn=~s/^http\:\/\/[^\/]+\/\~(\w+)//;
1.1 www 135: } else {
1.2 www 136: $r->log_reason($ENV{'user.name'}.' at '.$ENV{'user.domain'}.
137: ' unspecified filename for retrieval', $r->filename);
138: return HTTP_NOT_FOUND;
1.1 www 139: }
140:
141: unless ($fn) {
142: $r->log_reason($ENV{'user.name'}.' at '.$ENV{'user.domain'}.
1.2 www 143: ' trying to retrieve non-existing file', $r->filename);
1.1 www 144: return HTTP_NOT_FOUND;
145: }
146:
147: # ----------------------------------------------------------- Start page output
148:
149: my $uname=$ENV{'user.name'};
150: my $udom=$ENV{'user.domain'};
151:
152: $r->content_type('text/html');
153: $r->send_http_header;
154:
155: $r->print('<html><head><title>LON-CAPA Construction Space</title></head>');
156:
157: $r->print(
158: '<body bgcolor="#FFFFFF"><img align=right src=/adm/lonIcons/lonlogos.gif>');
159:
160:
1.2 www 161: $r->print('<h1>Retrieve previous versions of <tt>'.$fn.'</tt></h1>');
1.1 www 162:
1.2 www 163: if ($ENV{'form.phase'} eq 'two') {
1.4 www 164: &phasetwo($r,$fn,$uname,$udom);
1.2 www 165: } else {
166: &phaseone($r,$fn,$uname,$udom);
167: }
1.1 www 168:
169: $r->print('</body></html>');
170: return OK;
171: }
1.7 www 172:
173: 1;
174: __END__
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