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49 package RT::Interface::REST;
50 use LWP::MediaTypes qw(guess_media_type);
56 our @EXPORT = qw(expand_list form_parse form_compose vpush vsplit process_attachments);
58 sub custom_field_spec {
62 my $CF_name = '[^,]+';
63 $CF_name = '(' . $CF_name . ')' if $capture;
65 my $new_style = 'CF\.\{'.$CF_name.'\}';
66 my $old_style = 'C(?:ustom)?F(?:ield)?-'.$CF_name;
68 return '(?i:' . join('|', $new_style, $old_style) . ')';
75 my $field = '[a-z][a-z0-9_-]*';
76 $field = '(' . $field . ')' if $capture;
78 my $custom_field = __PACKAGE__->custom_field_spec($capture);
80 return '(?i:' . join('|', $field, $custom_field) . ')';
83 # WARN: this code is duplicated in bin/rt.in,
84 # change both functions at once
89 foreach (split /\s*,\s*/, $list) {
90 push @elts, /^(\d+)-(\d+)$/? ($1..$2): $_;
93 return map $_->[0], # schwartzian transform
95 defined $a->[1] && defined $b->[1]?
98 :!defined $a->[1] && !defined $b->[1]?
101 # mix, number must be first
102 :defined $a->[1]? -1: 1
104 map [ $_, (defined( /^(\d+)$/ )? $1: undef), lc($_) ],
108 # Returns a reference to an array of parsed forms.
112 my @lines = split /\n/, $_[0];
113 my ($c, $o, $k, $e) = ("", [], {}, "");
114 my $field = __PACKAGE__->field_spec;
118 my $line = shift @lines;
120 next LINE if $line eq '';
123 # We reached the end of one form. We'll ignore it if it was
124 # empty, and store it otherwise, errors and all.
125 if ($e || $c || @$o) {
126 push @forms, [ $c, $o, $k, $e ];
127 $c = ""; $o = []; $k = {}; $e = "";
131 elsif ($state != -1) {
132 if ($state == 0 && $line =~ /^#/) {
133 # Read an optional block of comments (only) at the start
137 while (@lines && $lines[0] =~ /^#/) {
138 $c .= "\n".shift @lines;
142 elsif ($state <= 1 && $line =~ /^($field):(?:\s+(.*))?$/i) {
143 # Read a field: value specification.
146 $v[0] = '' unless defined $v[0];
148 # Read continuation lines, if any.
149 while (@lines && ($lines[0] eq '' || $lines[0] =~ /^\s+/)) {
150 push @v, shift @lines;
152 pop @v while (@v && $v[-1] eq '');
154 # Strip longest common leading indent from text.
156 foreach my $ls (map {/^(\s+)/} @v[1..$#v]) {
157 $ws = $ls if (!$ws || length($ls) < length($ws));
161 shift @v while (@v && $v[0] eq '');
163 push(@$o, $f) unless exists $k->{$f};
164 vpush($k, $f, join("\n", @v));
168 elsif ($line =~ /^#/) {
169 # We've found a syntax error, so we'll reconstruct the
170 # form parsed thus far, and add an error marker. (>>)
172 $e = form_compose([[ "", $o, $k, "" ]]);
173 $e.= $line =~ /^>>/ ? "$line\n" : ">> $line\n";
177 # We saw a syntax error earlier, so we'll accumulate the
178 # contents of this form until the end.
182 push(@forms, [ $c, $o, $k, $e ]) if ($e || $c || @$o);
184 foreach my $l (keys %$k) {
185 $k->{$l} = vsplit($k->{$l}) if (ref $k->{$l} eq 'ARRAY');
191 # Returns text representing a set of forms.
196 foreach my $form (@$forms) {
197 my ($c, $o, $k, $e) = @$form;
210 foreach my $key (@$o) {
212 my @values = (ref $k->{$key} eq 'ARRAY') ?
216 $sp = " "x(length("$key: "));
217 $sp = " "x4 if length($sp) > 16;
219 foreach my $v (@values) {
220 $v = '' unless defined $v;
226 push @lines, "$line\n\n";
229 elsif (@lines && $lines[-1] !~ /\n\n$/) {
232 push @lines, "$key: $v\n\n";
235 length($line)+length($v)-rindex($line, "\n") >= 70)
240 $line = $line ? "$line, $v" : "$key: $v";
244 $line = "$key:" unless @values;
247 if (@lines && $lines[-1] !~ /\n\n$/) {
252 push @lines, "$line\n";
256 $text .= join "", @lines;
264 return join "\n--\n\n", @text;
267 # Add a value to a (possibly multi-valued) hash key.
269 my ($hash, $key, $val) = @_;
270 my @val = ref $val eq 'ARRAY' ? @$val : $val;
272 if (exists $hash->{$key}) {
273 unless (ref $hash->{$key} eq 'ARRAY') {
274 my @v = $hash->{$key} ne '' ? $hash->{$key} : ();
277 push @{ $hash->{$key} }, @val;
280 $hash->{$key} = $val;
284 # "Normalise" a hash key that's known to be multi-valued.
289 foreach my $line (map {split /\n/} (ref $val eq 'ARRAY') ? @$val : ($val||''))
291 # XXX: This should become a real parser, ? la Text::ParseWords.
294 push @words, split /\s*,\s*/, $line;
300 sub process_attachments {
303 return 1 unless @list;
305 my $m = $HTML::Mason::Commands::m;
306 my $cgi = $m->cgi_object;
309 foreach my $e ( @list ) {
311 my $fh = $cgi->upload("attachment_$i");
312 return (0, "No attachment for $e") unless $fh;
317 $file =~ s#^.*[\\/]##;
319 my ($tmp_fh, $tmp_fn) = File::Temp::tempfile( UNLINK => 1 );
322 while (sysread($fh, $buf, 8192)) {
323 syswrite($tmp_fh, $buf);
326 my $info = $cgi->uploadInfo($fh);
327 my $new_entity = $entity->attach(
329 Type => $info->{'Content-Type'} || guess_media_type($tmp_fn),
331 Disposition => $info->{'Content-Disposition'} || "attachment",
333 $new_entity->bodyhandle->{'_dirty_hack_to_save_a_ref_tmp_fh'} = $tmp_fh;
339 RT::Base->_ImportOverlays();
345 RT::Interface::REST - helper functions for the REST interface.
349 Only the REST should use this module.