Subversion Repositories DevTools

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# Codestriker: Copyright (c) 2001, 2002 David Sitsky.  All rights reserved.

# sits@users.sourceforge.net

#

# This program is free software; you can redistribute it and modify it under

# the terms of the GPL.

# Action object for handling the submission of a new topic.

package Codestriker::Action::SubmitNewTopic;

use strict;

use File::Temp qw/ tempfile /;

use FileHandle;

use Codestriker::Model::Topic;

use Codestriker::Http::Render;

use Codestriker::Repository::RepositoryFactory;

use Codestriker::FileParser::Parser;

use Codestriker::Model::Project;

use Codestriker::TopicListeners::Manager;

# If the input is valid, create the appropriate topic into the database.

sub process($$$) {

    my ($type, $http_input, $http_response) = @_;

    my $query = $http_response->get_query();

    # Check that the appropriate fields have been filled in.

    my $topic_title = $http_input->get('topic_title');

    my $topic_description = $http_input->get('topic_description');

    my $reviewers = $http_input->get('reviewers');

    my $email = $http_input->get('email');

    my $cc = $http_input->get('cc');

    my $fh = $http_input->get('fh');

    my $topic_file = $http_input->get('fh_filename');

    my $fh_mime_type = $http_input->get('fh_mime_type');

    my $bug_ids = $http_input->get('bug_ids');

    my $repository_name = $http_input->get('repository');

    my $projectid = $http_input->get('projectid');

    my $project_name = $http_input->get('project_name');

    my $start_tag = $http_input->get('start_tag');

    my $end_tag = $http_input->get('end_tag');

    my $module = $http_input->get('module');

    my $obsoletes = $http_input->get('obsoletes');

    my $default_to_head = $http_input->get('default_to_head');

    my $feedback = "";

    my $topic_text = "";

    my $url_builder = Codestriker::Http::UrlBuilder->new($query);

    # Indicate whether the topic text needs to be retrieved by the repository

    # object.

    my $retrieve_text_from_rep = 0;

    if (($start_tag ne "" || $end_tag ne "") && $module ne "") {

	$retrieve_text_from_rep = 1;

	# Check if this action is permitted.

	if (scalar(@Codestriker::valid_repositories) == 0) {

	    $feedback .= "Repository functionality has been disabled.  " .

		"Can't create topic text usings tags.\n";

	}

    }

    if ($topic_title eq "") {

	$feedback .= "No topic title was entered.\n";

    }

    if ($topic_description eq "") {

	$feedback .= "No topic description was entered.\n";

    }

    if ($email eq "") {

	$feedback .= "No email address was entered.\n";

    }

    if (!defined $fh && $retrieve_text_from_rep == 0) {

	$feedback .= "No filename or module/tags were entered.\n";

    }

    if ($reviewers eq "") {

	$feedback .= "No reviewers were entered.\n";

    }

    if ($retrieve_text_from_rep && defined $fh) {

	$feedback .= "Topic text specified using tags and uploaded file.\n";

	$feedback .= "Please choose one topic text method, and try again.\n";

    }

    $http_response->generate_header(topic_title=>"Create New Topic",

				    email=>$email, reviewers=>$reviewers,

				    cc=>$cc, repository=>$repository_name,

				    projectid=>$projectid,

				    reload=>0, cache=>0);

    # Set the error_vars in case of any errors that will require forwarding

    # to the create topic screen again.

    my $error_vars = {};

    $error_vars->{'version'} = $Codestriker::VERSION;

    $error_vars->{'feedback'} = $feedback;

    $error_vars->{'email'} = $email;

    $error_vars->{'reviewers'} = $reviewers;

    $error_vars->{'cc'} = $cc;

    $error_vars->{'topic_file'} = $topic_file;

    $error_vars->{'topic_description'} = $topic_description;

    $error_vars->{'topic_title'} = $topic_title;

    $error_vars->{'bug_ids'} = $bug_ids;

    $error_vars->{'default_repository'} = $repository_name;

    $error_vars->{'repositories'} = \@Codestriker::valid_repository_names;

    $error_vars->{'start_tag'} = $start_tag;

    $error_vars->{'end_tag'} = $end_tag;

    $error_vars->{'module'} = $module;

    $error_vars->{'obsoletes'} = $obsoletes;

    $error_vars->{'default_to_head'} = $default_to_head;

    $error_vars->{'default_projectid'} = $projectid;

    my $repository = undef;

    my $repository_url = undef;

    if (scalar(@Codestriker::valid_repositories)) {

	# Set the repository to the default if it is not entered.

	if ($repository_name eq "" || scalar(@Codestriker::valid_repository_names) == 1) {

	    $repository_name = $Codestriker::valid_repository_names[0];

	}

	# Check if the repository argument is in fact a configured

        # repository.

        $repository_url = $Codestriker::repository_url_map->{$repository_name};

        if (defined $repository_url) {

	    $repository =

		Codestriker::Repository::RepositoryFactory->get($repository_url);

        }

	if (! defined $repository) {

	    $feedback .=

		"The repository value set for \"$repository_name\" is invalid.\n" .

		"Please correct this value in your codestriker.conf file, " .

		"and try again.\n";

	}

    }

    # Set the projectid to the first (default) if it is invalid.

    my @projects = Codestriker::Model::Project->list();

    my $found_project = 0;

    foreach my $project (@projects) {

        if ((defined $projectid && $project->{id} == $projectid) ||

	    (defined $project_name && $project->{name} eq $project_name)) {

	    $projectid = $project->{id};

            $found_project = 1;

            last;

        }

    }

    if ($found_project == 0) {

        $projectid = $projects[0]->{id};

    }

    # Make sure all the conditions from the topic listeners are satisified.

    $feedback .= Codestriker::TopicListeners::Manager::topic_pre_create

	($email, $topic_title, $topic_description,

	 $bug_ids, $reviewers, $cc,

	 $repository_url, $projectid);

    # If there is a problem with the input, redirect to the create screen

    # with the message.

    if ($feedback ne "") {

	if (defined $fh) {

	    $feedback .=

		"For security reasons, please re-enter the " .

		"file name to upload, if required.\n";

	}

	_forward_create_topic($error_vars, $feedback, $url_builder);

	$http_response->generate_footer();

	return;

    }

    my $topicid = Codestriker::Model::Topic::create_new_topicid();        

    # If the topic text needs to be retrieved from the repository object,

    # create a temporary file to store the topic text.

    my $temp_topic_fh;

    my $temp_error_fh;

    if ($retrieve_text_from_rep && defined $repository) {

	# Store the topic text into temporary files.

	if (defined $Codestriker::tmpdir && $Codestriker::tmpdir ne "") {

	    $temp_topic_fh = tempfile(DIR => $Codestriker::tmpdir);

	    $temp_error_fh = tempfile(DIR => $Codestriker::tmpdir);

	}

	else {

	    $temp_topic_fh = tempfile();

	    $temp_error_fh = tempfile();

	}

	binmode $temp_topic_fh;

	binmode $temp_error_fh;

	my $rc = $repository->getDiff($start_tag, $end_tag, $module,

				      $temp_topic_fh, $temp_error_fh,

				      $default_to_head);

	# Make sure the data has been flushed to disk.

	$temp_topic_fh->flush;

	$temp_error_fh->flush;

	# Check if the generated diff was too big, and if so, throw an error

	# message on the screen.

	if ($rc == $Codestriker::DIFF_TOO_BIG) {

	    $feedback .= "Generated diff file is too big.\n";

	} elsif ($rc == $Codestriker::UNSUPPORTED_OPERATION) {

	    $feedback .= "Repository \"" . $repository_name .

		"\" does not support tag retrieval, you have to use the text file upload.\n";

	} elsif ($rc != $Codestriker::OK) {

	    $feedback .= "Unexpected error $rc retrieving diff text.\n";

	}

	# Seek to the beginning of the temporary file so it can be parsed.

	seek($temp_topic_fh, 0, 0);

	# Set $fh to this file reference which contains the topic data.

	$fh = $temp_topic_fh;

    }

    my @deltas = ();

    if ($feedback eq "") {

	# Try to parse the topic text into its diff chunks.

	@deltas =

	    Codestriker::FileParser::Parser->parse($fh, "text/plain", $repository,

						   $topicid, $topic_file);

	if ($#deltas == -1) {

	    # Nothing in the file, report an error.

	    $feedback .= "Reviewable text in topic is empty.\n";

	}

    }

    if ($feedback ne "") {

	# If there was a problem generating the diff file, remove the

	# temporary files, and direct control to the create screen again.

	$temp_topic_fh->close if defined $temp_topic_fh;

	$temp_error_fh->close if defined $temp_error_fh;

	_forward_create_topic($error_vars, $feedback, $url_builder);

	$http_response->generate_footer();

	return;

    }

    # If the topic text has been uploaded from a file, read from it now.

    if (defined $fh) {

	while (<$fh>) {

	    $topic_text .= Codestriker::decode_topic_text($_);

	}

	if ($topic_text eq "") {

	    if (defined $temp_error_fh) {

		seek($temp_error_fh, 0, 0);

		$feedback .= "Problem generating topic text:\n\n";

		my $buf = "";

		while (read $temp_error_fh, $buf, 16384) {

		    $feedback .= $buf;

		}

	    }

	    else {

		$feedback = "Uploaded file doesn't exist or is empty.\n";

	    }

	    # Remove the temporary files if required, and forward control

	    # back to the create topic page.

	    $temp_topic_fh->close if defined $temp_topic_fh;

	    $temp_error_fh->close if defined $temp_error_fh;

	    _forward_create_topic($error_vars, $feedback, $url_builder);

	    $http_response->generate_footer();

	    return;

	}

    }

    # Remove the temporary files if required.

    $temp_topic_fh->close if defined $temp_topic_fh;

    $temp_error_fh->close if defined $temp_error_fh;

    # Remove \r from the topic text.

    $topic_text =~ s/\r//g;

    # Make sure the topic is not too large, count the number of \n

    # in the topic content text.

    my $new_topic_length = 0;

    ++$new_topic_length while ($topic_text =~ /\n/g);

    if (defined($Codestriker::maximum_topic_size_lines) && 

        $Codestriker::maximum_topic_size_lines ne "" &&

        $Codestriker::maximum_topic_size_lines < $new_topic_length)

    {        

	$feedback .=

	    "The topic length of $new_topic_length lines is too long. " . 

	    "Topics cannot exceed $Codestriker::maximum_topic_size_lines " . 

	    "lines long. Please remove content from topic, or break the " .

	    "topic into several independent topics.\n";

        _forward_create_topic($error_vars, $feedback, $url_builder);

        $http_response->generate_footer();

        return;

    }

    # Make sure the specified topicids to be obsoleted are in fact valid.

    if (defined $obsoletes && $obsoletes ne '') {

	my @data = split ',', $obsoletes;

	for (my $i = 0; $i <= $#data; $i+=2) {

	    my $id = $data[$i];

	    my $version = $data[$i+1];

	    if (! Codestriker::Model::Topic::exists($id)) {

		$feedback .= "Obsoleted topics specified do not exist.\n";

		_forward_create_topic($error_vars, $feedback, $url_builder);

		$http_response->generate_footer();

		return;

	    }

	}

    }

    # Create the topic in the model.

    my $topic = Codestriker::Model::Topic->new($topicid);

    $topic->create($topicid, $email, $topic_title,

		   $bug_ids, $reviewers, $cc,

		   $topic_description, $topic_text,

		   $start_tag, $end_tag, $module,

		   $repository_url, $projectid,

		   \@deltas, $obsoletes);

    # Obsolete any required topics.

    if (defined $obsoletes && $obsoletes ne '') {

	my @data = split ',', $obsoletes;

	for (my $i = 0; $i <= $#data; $i+=2) {

	    my $id = $data[$i];

	    my $version = $data[$i+1];

	    Codestriker::Action::SubmitEditTopicsState

		->update_state($id, $version, 'Obsoleted', $email);

	}

    }

    # Tell all of the topic listener classes that a topic has 

    # just been created.

    $feedback = Codestriker::TopicListeners::Manager::topic_create($topic);

    # Obtain a URL builder object and determine the URL to the topic.

    my $topic_url = $url_builder->view_url_extended($topicid, -1, "", "", "",

						    $query->url(), 0);

    # Indicate to the user that the topic has been created and an email has

    # been sent.

    my $vars = {};

    $vars->{'topic_title'} = $topic->{title};

    $vars->{'email'} = $email;

    $vars->{'topic_url'} = $topic_url;

    $vars->{'reviewers'} = $reviewers;

    $vars->{'cc'} = (defined $cc) ? $cc : "";

    $vars->{'feedback'} = $feedback;

    my $template = Codestriker::Http::Template->new("submitnewtopic");

    $template->process($vars);

    $http_response->generate_footer();

}

# Direct output to the create topic screen again, with the appropriate feedback

# message.

sub _forward_create_topic($$$) {

    my ($vars, $feedback, $url_builder) = @_;

    $feedback =~ s/\n/<BR>/g;

    $vars->{'feedback'} = $feedback;

    my @projects = Codestriker::Model::Project->list();

    $vars->{'projects'} = \@projects;

    Codestriker::Action::CreateTopic->

	set_obsoleted_topics_parameter($vars, $url_builder);

    my $template = Codestriker::Http::Template->new("createtopic");

    $template->process($vars);

}

1;