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git-svn-id: https://svn.code.sf.net/p/squirrelmail/code/trunk/squirrelmail@13521 7612ce4b-ef26-0410-bec9-ea0150e637f0

diff --git a/plugins/sent_subfolders/functions.php b/plugins/sent_subfolders/functions.php
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+<?php
+
+/**
+ * setup.php -- Sent Subfolders Setup File
+ *
+ * This is a standard SquirrelMail 1.2 API for plugins.
+ *
+ * @copyright &copy; 1999-2007 The SquirrelMail Project Team
+ * @license http://opensource.org/licenses/gpl-license.php GNU Public License
+ * @version $Id$
+ * @package plugins
+ * @subpackage sent_subfolders
+ */
+
+function sent_subfolders_check_handleAsSent_do() {
+    global $handleAsSent_result, $sent_subfolders_base,
+           $use_sent_subfolders;
+
+    // FIXME: hardcoded folder
+    $sent_subfolders_base = 'INBOX.Sent';
+    $args = func_get_arg(0);
+    sqgetGlobalVar('delimiter', $delimiter, SQ_SESSION);
+
+    /* Only check the folder string if we have been passed a mailbox. */
+    if ($use_sent_subfolders && (count($args) > 1)) {
+        /* Chop up the folder strings as needed. */
+        $base_str = $sent_subfolders_base . $delimiter;
+        $mbox_str = substr($args[1], 0, strlen($base_str));
+
+        /* Perform the comparison. */
+        $handleAsSent_result =
+            ( $handleAsSent_result
+            || ($base_str == $mbox_str)
+            || ($sent_subfolders_base == $args[1])
+            );
+    }
+}
+
+/**
+ * Loads sent_subfolders settings
+ */
+function sent_subfolders_load_prefs_do() {
+    global $use_sent_subfolders, $data_dir, $username,
+           $sent_subfolders_setting, $sent_subfolders_base;
+
+    $use_sent_subfolders = getPref
+    ($data_dir, $username, 'use_sent_subfolders', SMPREF_OFF);
+
+    $sent_subfolders_setting = getPref
+    ($data_dir, $username, 'sent_subfolders_setting', SMPREF_SENT_SUBFOLDERS_DISABLED);
+
+    $sent_subfolders_base = getPref
+    ($data_dir, $username, 'sent_subfolders_base', SMPREF_NONE);
+}
+
+/**
+ * Adds sent_subfolders options in folder preferences
+ */
+function sent_subfolders_optpage_loadhook_folders_do() {
+    global $username, $optpage_data, $imapServerAddress, $imapPort, $show_contain_subfolders_option;
+
+    /* Get some imap data we need later. */
+    $imapConnection = sqimap_login($username, false, $imapServerAddress, $imapPort, 0);
+    $boxes = sqimap_mailbox_list($imapConnection);
+    sqimap_logout($imapConnection);
+
+    /* Load the Sent Subfolder Options into an array. */
+    $optgrp = _("Sent Subfolders Options");
+    $optvals = array();
+
+    $optvals[] = array(
+        'name'    => 'sent_subfolders_setting',
+        'caption' => _("Use Sent Subfolders"),
+        'type'    => SMOPT_TYPE_STRLIST,
+        'refresh' => SMOPT_REFRESH_FOLDERLIST,
+        'posvals' => array(SMPREF_SENT_SUBFOLDERS_DISABLED  => _("Disabled"),
+                        SMPREF_SENT_SUBFOLDERS_MONTHLY   => _("Monthly"),
+                        SMPREF_SENT_SUBFOLDERS_QUARTERLY => _("Quarterly"),
+                        SMPREF_SENT_SUBFOLDERS_YEARLY    => _("Yearly")),
+        'save'    => 'save_option_sent_subfolders_setting'
+    );
+
+    $filtered_folders=array_filter($boxes, "filter_folders");
+    $sent_subfolders_base_values = array('whatever'=>$filtered_folders);
+
+    $optvals[] = array(
+        'name'    => 'sent_subfolders_base',
+        'caption' => _("Base Sent Folder"),
+        'type'    => SMOPT_TYPE_FLDRLIST,
+        'refresh' => SMOPT_REFRESH_FOLDERLIST,
+        'posvals' => $sent_subfolders_base_values,
+        'folder_filter' => 'noinferiors'
+    );
+
+    if ($show_contain_subfolders_option) {
+        $optvals[] = array(
+            'name' => 'sent_subfolders_warning',
+            'caption' => _("Warning"),
+            'type' => SMOPT_TYPE_COMMENT,
+            'comment' => _("There are some restrictions in Sent Subfolder options.")
+            );
+    }
+
+    /* Add our option data to the global array. */
+    $optpage_data['grps'][SMOPT_GRP_SENT_SUBFOLDERS] = $optgrp;
+    $optpage_data['vals'][SMOPT_GRP_SENT_SUBFOLDERS] = $optvals;
+}
+
+/**
+ * Defines folder filtering rules
+ *
+ * Callback function that should exclude some folders from folder listing.
+ * @param array $fldr list of folders. See sqimap_mailbox_list
+ * @return boolean returns true, if folder has to included in folder listing
+ * @access private
+ */
+function filter_folders($fldr) {
+    return strtolower($fldr['unformatted'])!='inbox';
+}
+
+/**
+ * Saves sent_subfolder_options
+ */
+function save_option_sent_subfolders_setting($option) {
+    global $data_dir, $username, $use_sent_subfolders;
+
+    /* Set use_sent_subfolders as either on or off. */
+    if ($option->new_value == SMPREF_SENT_SUBFOLDERS_DISABLED) {
+        setPref($data_dir, $username, 'use_sent_subfolders', SMPREF_OFF);
+    } else {
+        setPref($data_dir, $username, 'use_sent_subfolders', SMPREF_ON);
+        setPref($data_dir, $username, 'move_to_sent', SMPREF_ON);
+    }
+
+    /* Now just save the option as normal. */
+    save_option($option);
+}
+
+/**
+ * Update sent_subfolders settings
+ *
+ * function updates default sent folder value and
+ * creates required imap folders
+ */
+function sent_subfolders_update_sentfolder_do() {
+    global $sent_folder, $username;
+    global $sent_subfolders_base, $sent_subfolders_setting;
+    global $data_dir, $imapServerAddress, $imapPort;
+    global $use_sent_subfolders, $move_to_sent;
+
+    sqgetGlobalVar('delimiter', $delimiter, SQ_SESSION);
+
+    if ($use_sent_subfolders || $move_to_sent) {
+        $year = date('Y');
+        $month = date('m');
+        $quarter = sent_subfolder_getQuarter($month);
+
+        /**
+         * Regarding the structure we've got three main possibilities.
+         * One sent holder. level 0.
+         * Multiple year holders with messages in it. level 1.
+         * Multiple year folders with holders in it. level 2.
+         */
+
+        switch ($sent_subfolders_setting) {
+        case SMPREF_SENT_SUBFOLDERS_YEARLY:
+            $level = 1;
+            $sent_subfolder = $sent_subfolders_base . $delimiter
+                            . $year;
+            break;
+        case SMPREF_SENT_SUBFOLDERS_QUARTERLY:
+            $level = 2;
+            $sent_subfolder = $sent_subfolders_base . $delimiter
+                            . $year
+                            . $delimiter . $quarter;
+            $year_folder = $sent_subfolders_base . $delimiter
+                            . $year;
+            break;
+        case SMPREF_SENT_SUBFOLDERS_MONTHLY:
+            $level = 2;
+            $sent_subfolder = $sent_subfolders_base . $delimiter
+                            . $year
+                            . $delimiter . $month;
+            $year_folder = $sent_subfolders_base. $delimiter . $year;
+            break;
+        case SMPREF_SENT_SUBFOLDERS_DISABLED:
+        default:
+            $level = 0;
+            $sent_subfolder = $sent_folder;
+            $year_folder = $sent_folder;
+        }
+
+        /* If this folder is NOT the current sent folder, update stuff. */
+        if ($sent_subfolder != $sent_folder) {
+            /* Auto-create folders, if they do not yet exist. */
+            if ($sent_subfolder != 'none') {
+                /* Create the imap connection. */
+                $ic = sqimap_login($username, false, $imapServerAddress, $imapPort, 10);
+
+                $boxes = false;
+                /**
+                 * If sent_subfolder can't store messages (noselect) ||
+                 * year_folder can't store subfolders (noinferiors) in level=2 setup ||
+                 * subfolder_base can't store subfolders (noinferiors), setup is broken
+                 */
+                if (sqimap_mailbox_is_noselect($ic,$sent_subfolder,$boxes) ||
+                    ($level==2 && sqimap_mailbox_is_noinferiors($ic,$year_folder,$boxes)) ||
+                     sqimap_mailbox_is_noinferiors($ic,$sent_subfolders_base,$boxes)) {
+                    error_box(_("Sent Subfolders plugin is misconfigured."));
+                } else {
+                    if ($level==2) {
+                        /* Auto-create the year folder, if it does not yet exist. */
+                        if (!sqimap_mailbox_exists($ic, $year_folder)) {
+                            sqimap_mailbox_create($ic, $year_folder, 'noselect');
+                            // TODO: safety check for imap servers that can't create subfolders
+
+                        } else if (!sqimap_mailbox_is_subscribed($ic, $year_folder)) {
+                            sqimap_subscribe($ic, $year_folder);
+                        }
+                    }
+
+                    /* Auto-create the subfolder, if it does not yet exist. */
+                    if (!sqimap_mailbox_exists($ic, $sent_subfolder)) {
+                        sqimap_mailbox_create($ic, $sent_subfolder, '');
+                    } else if (!sqimap_mailbox_is_subscribed($ic, $sent_subfolder)) {
+                        sqimap_subscribe($ic, $sent_subfolder);
+                    }
+                    /* Update sent_folder setting. */
+                    //setPref($data_dir, $username, 'sent_folder', $sent_subfolder);
+                    //setPref($data_dir, $username, 'move_to_sent', SMPREF_ON);
+                    $sent_folder = $sent_subfolder;
+                    $move_to_sent = SMPREF_ON;
+                }
+                /* Close the imap connection. */
+                sqimap_logout($ic);
+            }
+
+        }
+    }
+}
+
+/**
+ * Sets quarter subfolder names
+ *
+ * @param string $month numeric month
+ * @return string quarter name (Q + number)
+ */
+function sent_subfolder_getQuarter($month) {
+    switch ($month) {
+        case '01':
+        case '02':
+        case '03':
+            $result = '1';
+            break;
+        case '04':
+        case '05':
+        case '06':
+            $result = '2';
+            break;
+        case '07':
+        case '08':
+        case '09':
+            $result = '3';
+            break;
+        case '10':
+        case '11':
+        case '12':
+            $result = '4';
+            break;
+        default:
+            $result = 'ERR';
+    }
+
+    /* Return the current quarter. */
+    return ('Q' . $result);
+}
+
+/**
+ * detects if mailbox is part of sent_subfolders
+ *
+ * @param string $mb imap folder name
+ * @return boolean 1 - is part of sent_subfolders, 0 - is not part of sent_subfolders
+ */
+function sent_subfolders_special_mailbox_do($mb) {
+    global $data_dir, $username;
+
+    sqgetGlobalVar('delimiter', $delimiter, SQ_SESSION);
+
+    $use_sent_subfolders = getPref
+        ($data_dir, $username, 'use_sent_subfolders', SMPREF_OFF);
+    $sent_subfolders_base = getPref($data_dir, $username, 'sent_subfolders_base', 'na');
+
+    /**
+     * If sent_subfolders are used and mailbox is equal to subfolder base 
+     * or mailbox matches subfolder base + delimiter.
+     */
+    if ($use_sent_subfolders == SMPREF_ON &&
+    ($mb == $sent_subfolders_base || stristr($mb,$sent_subfolders_base . $delimiter) ) ) {
+        return 1;
+    }
+    return 0;
+}