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Diffstat (limited to 'rt/html/REST/1.0/dhandler')
| -rw-r--r-- | rt/html/REST/1.0/dhandler | 287 |
1 files changed, 287 insertions, 0 deletions
diff --git a/rt/html/REST/1.0/dhandler b/rt/html/REST/1.0/dhandler new file mode 100644 index 0000000..ef5217f --- /dev/null +++ b/rt/html/REST/1.0/dhandler @@ -0,0 +1,287 @@ +%# BEGIN LICENSE BLOCK +%# +%# Copyright (c) 1996-2003 Jesse Vincent <jesse@bestpractical.com> +%# +%# (Except where explictly superceded by other copyright notices) +%# +%# This work is made available to you under the terms of Version 2 of +%# the GNU General Public License. A copy of that license should have +%# been provided with this software, but in any event can be snarfed +%# from www.gnu.org. +%# +%# This work is distributed in the hope that it will be useful, but +%# WITHOUT ANY WARRANTY; without even the implied warranty of +%# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +%# General Public License for more details. +%# +%# Unless otherwise specified, all modifications, corrections or +%# extensions to this work which alter its source code become the +%# property of Best Practical Solutions, LLC when submitted for +%# inclusion in the work. +%# +%# +%# END LICENSE BLOCK +%# REST/1.0/dhandler +%# +<%ARGS> +@id => () +$fields => undef +$format => undef +$content => undef +</%ARGS> +<%INIT> +use RT::Interface::REST; + +my $output = ""; +my $status = "200 Ok"; +my $object = $m->dhandler_arg; + +my $name = qr{[\w.-]+}; +my $list = '(?:(?:\d+-)?\d+,)*(?:\d+-)?\d+'; +my $label = '[a-zA-Z0-9@_.+-]+'; +my $field = '[a-zA-Z][a-zA-Z0-9_-]*'; +my $labels = "(?:$label,)*$label"; + +# We must handle requests such as the following: +# +# 1. http://.../REST/1.0/show (with a list of object specifications). +# 2. http://.../REST/1.0/edit (with a self-contained list of forms). +# 3. http://.../REST/1.0/ticket/show (implicit type specification). +# http://.../REST/1.0/ticket/edit +# 4. http://.../REST/1.0/ticket/nn (all possibly with a single form). +# http://.../REST/1.0/ticket/nn/history +# http://.../REST/1.0/ticket/nn/attachment/1 +# +# Objects are specified by their type, and either a unique numeric ID, +# or a unique name (e.g. ticket/1, queue/foo). Multiple objects of the +# same type may be specified by a comma-separated list of identifiers +# (e.g., user/ams,rai or ticket/1-3,5-7). +# +# Ultimately, we want a list of object specifications to operate upon. +# The URLs in (4) provide enough information to identify an object. We +# will assemble submitted information into that format in other cases. +# +my (@objects, $forms); +my $utype; + +if ($object eq 'show' || # $REST/show + (($utype) = ($object =~ m{^($name)/show$}))) # $REST/ticket/show +{ + # We'll convert type/range specifications ("ticket/1-3,7-9/history") + # into a list of singular object specifications ("ticket/1/history"). + # If the URL specifies a type, we'll accept only that one. + foreach my $id (@id) { + $id =~ s|^(?:$utype/)?|$utype/| if $utype; + if (my ($type, $oids, $extra) = + ($id =~ m#^($name)/($list|$labels)(?:(/.*))?$#o)) + { + foreach my $oid (expand_list($oids)) { + if ($extra =~ m{^(?:/($name)(?:/(.*))?)?$}o) { + my ($attr, $args) = ($1, $2); + # expand transaction and attachment range specifications + # (if applicable) + my $tids; + if ($attr eq 'history' && $args =~ m#id/(\d.*)#o) { + $tids = $1; + } + if ($tids) { + push(@objects, "$type/$oid/$attr/id/$_") for expand_list($tids); + } else { + push(@objects, "$type/$oid$extra"); + } + } + } + } + else { + $status = "400 Bad Request"; + $output = "Invalid object ID specified: '$id'"; + goto OUTPUT; + } + } +} +elsif ($object eq 'edit' || # $REST/edit + (($utype) = ($object =~ m{^($name)/edit$}))) # $REST/ticket/edit +{ + # We'll make sure each of the submitted forms is syntactically valid + # and sufficiently identifies an object to operate upon, then add to + # the object list as above. + my @output; + + $forms = form_parse($content); + foreach my $form (@$forms) { + my ($c, $o, $k, $e) = @$form; + + if ($e) { + push @output, [ "# Syntax error.", $o, $k, $e ]; + } + else { + my ($type, $id); + + # Look for matching types in the ID, form, and URL. + $type = exists $k->{type} ? $k->{type} : $utype; + $type =~ s|^(?:$utype)?|$utype/| if $utype; + $type =~ s|/$||; + + if (exists $k->{id}) { + $id = $k->{id}; + $id =~ s|^(?:$type/)?|$type/| if $type; + + if ($id =~ m#^$name/(?:$label|\d+)(?:/.*)?#o) { + push @objects, $id; + } + else { + push @output, [ "# Invalid object ID: '$id'", $o, $k, $e ]; + } + } + else { + push @output, [ "# No object ID specified.", $o, $k, $e ]; + } + } + } + # If we saw any errors at this stage, we won't process any part of + # the submitted data. + if (@output) { + unshift @output, [ "# Please resubmit with errors corrected." ]; + $status = "409 Syntax Error"; + $output = form_compose(\@output); + goto OUTPUT; + } +} +else { + # We'll assume that this is in the correct format already. Otherwise + # it will be caught by the loop below. + push @objects, $object; + + if ($content) { + $forms = form_parse($content); + + if (@$forms > 1) { + $status = "400 Bad Request"; + $output = "You may submit only one form to this object."; + goto OUTPUT; + } + + my ($c, $o, $k, $e) = @{ $forms->[0] }; + if ($e) { + $status = "409 Syntax Error"; + $output = form_compose([ ["# Syntax error.", $o, $k, $e] ]); + goto OUTPUT; + } + } +} + +# Make sure we have something to do. +unless (@objects) { + $status = "400 Bad Request"; + $output = "No objects specified."; + goto OUTPUT; +} + +# Parse and validate any field specifications. +my (%fields, @fields); +if ($fields) { + unless ($fields =~ /^(?:$field,)*$field$/) { + $status = "400 Bad Request"; + $output = "Invalid field specification: $fields"; + goto OUTPUT; + } + @fields = map lc, split /,/, $fields; + @fields{@fields} = (); + unless (exists $fields{id}) { + unshift @fields, "id"; + $fields{id} = (); + } +} + +my (@comments, @output); + +foreach $object (@objects) { + my ($handler, $type, $id, $attr, $args); + my ($c, $o, $k, $e) = ("", ["id"], {id => $object}, 0); + + my $i = 0; + if ($object =~ m{^($name)/(\d+|$label)(?:/($name)(?:/(.*))?)?$}o || + $object =~ m{^($name)/(new)$}o) + { + ($type, $id, $attr, $args) = ($1, $2, ($3 || 'default'), $4); + $handler = "Forms/$type/$attr"; + + unless ($m->comp_exists($handler)) { + $args = "$attr/$args"; + $handler = "Forms/$type/default"; + + unless ($m->comp_exists($handler)) { + $i = 2; + $c = "# Unknown object type: $type"; + } + } + elsif ($id ne 'new' && $id !~ /^\d+$/) { + my $ns = "Forms/$type/ns"; + + # Can we resolve named objects? + unless ($m->comp_exists($ns)) { + $i = 3; + $c = "# Objects of type $type must be specified by numeric id."; + } + else { + my ($n, $s) = $m->comp("Forms/$type/ns", id => $id); + if ($n <= 0) { $i = 4; $c = "# $s"; } + else { $i = 0; $id = $n; } + } + } + else { + $i = 0; + } + } + else { + $i = 1; + $c = "# Invalid object specification: '$object'"; + } + + if ($i != 0) { + if ($content) { + (undef, $o, $k, $e) = @{ shift @$forms }; + } + push @output, [ $c, $o, $k ]; + next; + } + + unless ($content) { + my $d = $m->comp($handler, id => $id, args => $args, format => $format, fields => \%fields); + my ($c, $o, $k, $e) = @$d; + + if (!$e && @$o && keys %fields) { + my %lk = map { lc $_ => $_ } keys %$k; + @$o = map { $lk{$_} } @fields; + foreach my $key (keys %$k) { + delete $k->{$key} unless exists $fields{lc $key}; + } + } + push(@output, [ $c, $o, $k ]) if ($c || @$o || keys %$k); + } + else { + my ($c, $o, $k, $e) = @{ shift @$forms }; + my $d = $m->comp($handler, id => $id, args => $args, format => $format, + changes => $k); + ($c, $o, $k, $e) = @$d; + + # We won't pass $e through to compose, trusting instead that the + # handler added suitable comments for the user. + if ($e) { + $status = "409 Syntax Error" if @$o; + push @output, [ $c, $o, $k ]; + } + else { + push @comments, $c; + } + } +} + +unshift(@output, [ join "\n", @comments ]) if @comments; +$output = form_compose(\@output); + +OUTPUT: +</%INIT> +RT/<% $RT::VERSION %> <% $status %> + +<% $output |n %> |