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1 | <?php |
2 | require_once(dirname(dirname(__FILE__)) . '/config.php'); |
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3 | |
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4 | if (empty($CFG->enableportfolios)) { |
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5 | print_error('disabled', 'portfolio'); |
6 | } |
7 | |
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8 | require_once($CFG->libdir . '/portfoliolib.php'); |
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9 | require_once($CFG->libdir . '/formslib.php'); |
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10 | |
11 | $cancel = optional_param('cancel', 0, PARAM_RAW); |
12 | |
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13 | require_login(); |
14 | |
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15 | $exporter = null; |
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16 | $dataid = 0; |
17 | |
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18 | if (!$dataid = optional_param('id', '', PARAM_INT) ) { |
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19 | if (isset($SESSION->portfolioexport)) { |
20 | $dataid = $SESSION->portfolioexport; |
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21 | } |
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22 | } |
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23 | |
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24 | if ($dataid) { |
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25 | try { |
26 | $exporter = portfolio_exporter::rewaken_object($dataid); |
27 | } catch (portfolio_exception $e) { |
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28 | // this can happen in some cases, a cancel request is sent when something is already broken |
29 | // so process it elegantly and move on. |
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30 | if ($cancel) { |
31 | unset($SESSION->portfolioexport); |
32 | redirect($CFG->wwwroot); |
33 | } else { |
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34 | portfolio_exporter::print_expired_export(); |
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35 | } |
36 | } |
37 | if ($cancel) { |
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38 | $exporter->cancel_request(); |
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39 | } |
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40 | // verify we still belong to the correct user and session |
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41 | $exporter->verify_rewaken(); |
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42 | if (!$exporter->get('instance')) { |
43 | if ($instance = optional_param('instance', '', PARAM_INT)) { |
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44 | try { |
45 | $instance = portfolio_instance($instance); |
46 | } catch (portfolio_exception $e) { |
47 | portfolio_export_rethrow_exception($exporter, $e); |
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48 | } |
49 | if ($broken = portfolio_instance_sanity_check($instance)) { |
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50 | throw new portfolio_export_exception($exporter, $broken[$instance->get('id')], 'portfolio_' . $instance->get('plugin')); |
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51 | } |
52 | $instance->set('user', $USER); |
53 | $exporter->set('instance', $instance); |
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54 | $exporter->save(); |
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55 | } |
56 | } |
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57 | } else { |
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58 | |
59 | if (empty($_GET) && empty($_POST)) { |
60 | portfolio_exporter::print_expired_export(); |
61 | } |
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62 | // we'e just posted here for the first time and have might the instance already |
63 | if ($instance = optional_param('instance', 0, PARAM_INT)) { |
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64 | // this can throw exceptions but there's no point catching and rethrowing here |
65 | // as the exporter isn't created yet. |
66 | $instance = portfolio_instance($instance); |
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67 | if ($broken = portfolio_instance_sanity_check($instance)) { |
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68 | throw new portfolio_exception($broken[$instance->get('id')], 'portfolio_' . $instance->get('plugin')); |
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69 | } |
70 | $instance->set('user', $USER); |
71 | } else { |
72 | $instance = null; |
73 | } |
74 | |
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75 | $callbackfile = optional_param('callbackfile', null, PARAM_PATH); |
76 | $callbackclass = optional_param('callbackclass', null, PARAM_ALPHAEXT); |
77 | |
78 | if (empty($callbackfile) || empty($callbackclass)) { |
79 | portfolio_exporter::print_expired_export(); |
80 | } |
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81 | |
82 | $callbackargs = array(); |
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83 | foreach (array_keys(array_merge($_GET, $_POST)) as $key) { |
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84 | if (strpos($key, 'ca_') === 0) { |
85 | if (!$value = optional_param($key, false, PARAM_ALPHAEXT)) { |
86 | if (!$value = optional_param($key, false, PARAM_NUMBER)) { |
87 | $value = optional_param($key, false, PARAM_PATH); |
88 | } |
89 | } |
90 | $callbackargs[substr($key, 3)] = $value; |
91 | } |
92 | } |
93 | require_once($CFG->dirroot . $callbackfile); |
94 | $caller = new $callbackclass($callbackargs); |
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95 | $caller->set('user', $USER); |
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96 | $caller->load_data(); |
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97 | if (!$caller->check_permissions()) { |
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98 | throw new portfolio_caller_exception('nopermissions', 'portfolio', $caller->get_return_url()); |
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99 | } |
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100 | |
101 | // for build navigation |
102 | if (!$course = $caller->get('course')) { |
103 | $course = optional_param('course', 0, PARAM_INT); |
104 | } |
105 | |
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106 | if (!empty($course) && is_numeric($course)) { |
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107 | $course = $DB->get_record('course', array('id' => $course), 'id,shortname,fullname'); |
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108 | } |
109 | |
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110 | // this is yuk but used in build_navigation |
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111 | $COURSE = $course; |
112 | |
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113 | list($extranav, $cm) = $caller->get_navigation(); |
114 | $extranav[] = array('type' => 'title', 'name' => get_string('exporting', 'portfolio')); |
115 | $navigation = build_navigation($extranav, $cm); |
116 | |
117 | $exporter = new portfolio_exporter($instance, $caller, $callbackfile, $navigation); |
118 | $exporter->set('user', $USER); |
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119 | $exporter->set('sesskey', sesskey()); |
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120 | $exporter->save(); |
121 | $SESSION->portfolioexport = $exporter->get('id'); |
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122 | } |
123 | |
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124 | if (!$exporter->get('instance')) { |
125 | // we've just arrived but have no instance |
126 | // so retrieve everything from the request, |
127 | // add them as hidden fields in a new form |
128 | // to select the instance and post back here again |
129 | // for the next block to catch |
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130 | $mform = new portfolio_instance_select('', array('caller' => $exporter->get('caller'))); |
131 | if ($mform->is_cancelled()) { |
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132 | $exporter->cancel_request(); |
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133 | } else if ($fromform = $mform->get_data()){ |
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134 | redirect($CFG->wwwroot . '/portfolio/add.php?instance=' . $fromform->instance . '&id=' . $exporter->get('id')); |
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135 | exit; |
136 | } |
137 | else { |
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138 | $exporter->print_header('selectplugin'); |
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139 | print_simple_box_start(); |
140 | $mform->display(); |
141 | print_simple_box_end(); |
142 | print_footer(); |
143 | exit; |
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144 | } |
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145 | } |
146 | |
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147 | if (!$stage = optional_param('stage', PORTFOLIO_STAGE_CONFIG)) { |
148 | $stage = $exporter->get('stage'); |
149 | } |
150 | |
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151 | $alreadystolen = false; |
152 | // for places returning control to pass (rather than PORTFOLIO_STAGE_PACKAGE |
153 | // which is unstable if they can't get to the constant (eg external system) |
154 | if ($postcontrol = optional_param('postcontrol', 0, PARAM_INT)) { |
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155 | try { |
156 | $exporter->instance()->post_control($stage, array_merge($_GET, $_POST)); |
157 | } catch (portfolio_plugin_exception $e) { |
158 | portfolio_export_rethrow_exception($exporter, $e); |
159 | } |
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160 | $alreadystolen = true; |
161 | } |
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162 | |
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163 | // actually do the work now.. |
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164 | $exporter->process_stage($stage, $alreadystolen); |
165 | |
166 | ?> |