files are available as ../directory/file. This means that if some file
in the plugin directory is requested, it must do a chdir("..") before
including any of the standard SquirrelMail files.
+
+
+Hook Data Passed
+----------------
+Hooks, when executed, are called with one parameter, an array of data
+that is passed to the hook. The first element in the array is the name
+of the hook that is being called. Any other elements in the array are
+dependant on the type of hook that is being called.
+
+Some of the information in the array may be changed. By default, the
+plugins should never change data unless it is documented otherwise.
+
+
+List of hooks
+-------------
+ generic_header functions/page_header.php
+ menuline functions/page_header.php
+ compose_button_row src/compose.php
+ compose_bottom src/compose.php
+ compose_form src/compose.php
+ compose_send src/compose.php
+ left_main_before src/left_main.php
+ left_main_after src/left_main.php
+ * options_save src/options.php (see note on options)
+ * options_link_and_description src/options.php (see note on options)
+ * options_highlight_bottom src/options_highlight.php
+ * options_personal_bottom src/options_personal.php
+ * options_personal_inside src/options_personal.php
+ * options_personal_save src/options_personal.php
+ * options_display_bottom src/options_display.php
+ * options_display_inside src/options_display.php
+ * options_display_save src/options_display.php
+ * options_folders_bottom src/options_folders.php
+ * options_folders_inside src/options_folders.php
+ * options_folders_save src/options_folders.php
+ & options_identities_process src/options_identities.php
+ & options_identities_top src/options_identities.php
+ & options_identities_renumber src/options_identities.php (multiple places)
+ & options_identities_table src/options_identities.php
+ & options_identities_buttons src/options_identities.php
+ logout src/signout.php
+ login_before src/webmail.php
+ login_verified src/webmail.php
+ loading_prefs src/load_prefs.php
+ mailbox_index_before functions/mailbox_display.php
+ mailbox_index_after functions/mailbox_display.php
+ mailbox_form_before functions/mailbox_display.php
+ subject_link functions/mailbox_display.php
+ right_main_after_header src/right_main.php
+ right_main_bottom src/right_main.php
+ login_top src/login.php
+ login_bottom src/login.php
+ html_top src/read_body.php
+ read_body_top src/read_body.php
+ read_body_bottom src/read_body.php
+ html_bottom src/read_body.php
+ read_body_header src/read_body.php
+ read_body_header_right src/read_body.php
+ search_before_form src/search.php
+ search_after_form src/search.php
+ search_bottom src/search.php
+ help_top src/help.php
+ help_bottom src/help.php
+ help_chapter src/help.php
+ addrbook_html_search_below src/addrbook_search_html.php
+ addressbook_bottom src/addressbook.php
+ ^ attachment $type0/$type1 functions/mime.php (see note on attachments)
+
+
+(*) Options
+-----------
+There are two ways to do options for your plugin. First, you can incorporate it
+into an existing section of the preferences (Display, Personal, or Folders).
+The second way, you create your own section that they can choose from and it
+displays its own range of options.
+
+
+First: Integrating into existing options
+-----------------------------------------
+There are two hooks you need to use for this one:
+
+1. options_YOUCHOOSE_inside
+ This is the code that goes inside the table for the section you choose. Since
+ it is going inside an existing table, it must be in this form:
+ ------cut here-------
+ <tr>
+ <td>
+ OPTION_NAME
+ </td>
+ <td>
+ OPTION_INPUT
+ </td>
+ </tr>
+ ------cut here-------
+
+2. options_YOUCHOOSE_save
+ This is the code that saves your preferences into the users' preference
+ file. For an example of how to do this, see src/options.php.
+
+
+Second: Create your own section
+-------------------------------
+It is possible to create your own options sections with plugins. There are
+three hooks you will need to use.
+
+1. options_link_and_description
+ This creates the link and has a description that are shown on the options
+ page. This should output HTML that looks like this. Make sure to read
+ the section on outputting your own pages.
+
+ -----cut here-----
+ function my_plugin_name_my_function() {
+ global $color
+ ?>
+ <table width=50% cellpadding=3 cellspacing=0 border=0 align=center>
+ <tr>
+ <td bgcolor="<? echo $color[9] ?>">
+ <a href="../plugins/YOUR_PLUGIN/YOUR_OPTIONS.php">YOUR OPTIONS NAME</a>
+ </td>
+ </tr>
+ <tr>
+ <td bgcolor="<? echo $color[0] ?>">
+ YOUR DESCRIPTION
+ </td>
+ </tr>
+ </table>
+ <?php
+ }
+ -----cut here-----
+
+2. options_save
+ Here is the code that you need to do to save your options in the
+ preference files or manipulate whatever data you are trying to change
+ through the options section. You can look at options.php for details
+ on how this is to be done.
+
+3. loading_prefs (optional)
+ If you are wanting to save preferences to the preference files, then
+ you need to do this step as well. Otherwise if you are manipulating
+ other data, ignore this step.
+
+ You should put the code in here that loads your preferences back
+ into usable variables. Examples of this can be found in the file
+ src/load_prefs.php
+
+
+(&) Identity Hooks
+------------------
+Some hooks are passed special information in the array of arguments. See
+the SpamCop plugin for how to use them.
+
+options_identities_process
+ [0] = Hook's name
+ [1] = Should I run the SaveUpdateFunction() (alterable)
+
+options_identities_renumber
+ [0] = Hook's name
+ [1] = Renumber it from ('default' or 1 through # idents - 1)
+ [2] = Renumber it to (same thing)
+
+options_identities_table
+ [0] = Hook's name
+ [1] = Color of table (use it like <tr<?PHP echo $Info[1]?>> in your
+ plugin)
+ [2] = Is this an empty section?
+ [3] = What is the 'post' value?
+
+options_identities_buttons
+ [0] = Hook's name
+ [1] = Is this an empty section (the one at the end of the list)?
+ [2] = What is the 'post' value?
+
+
+(^) Attachment Hooks
+--------------------
+When a message has attachments, this hook is called with the MIME types. For
+instance, a .zip file hook is "attachment application/x-zip". The hook should
+probably show a link to do a specific action, such as "Verify" or "View" for a
+.zip file.
+
+This is a breakdown of the data passed in the array to the hook that is called:
+
+ [0] = Hook's name ('attachment text/plain')
+ [1] = Array of links of actions (more below) (Alterable)
+ [2] = Used for returning to mail message (startMessage)
+ [3] = Used for finding message to display (id)
+ [4] = Mailbox name, urlencode()'d (urlMailbox)
+ [5] = Entity ID inside mail message (ent)
+ [6] = Default URL to go to when filename is clicked on (Alterable)
+ [7] = Filename that is displayed for the attachment
+ [8] = Sent if message was found from a search (where)
+ [9] = Sent if message was found from a search (what)
+
+To set up links for actions, you assign them like this:
+
+ $Args[1]['your_plugin_name']['href'] = 'URL to link to';
+ $Args[1]['your_plugin_name']['text'] = 'What to display';
+
+
+Outputting Your Own Pages
+-------------------------
+
+Often, when you want to provide your own customized options screen or create
+another web page instead of just using standard hooks, you will be creating
+your own .php files. An example of this is the attachment_common plugin's
+image.php file.
+
+To make sure that security is maintained and standards are followed, the top
+of your PHP script should look very similar to this:
+
+ <?PHP
+ /* This is my php file.
+ * description goes here.
+ */
+
+ chdir('..');
+ include('../src/validate.php');
+
+The validate.php script will include internationalization support,
+config.php variables, strings.php functions, and also authenticate that the
+user is truly logged in. Validate.php also calls stripslashes() on incoming
+data (if gpc_magic_quotes() is on). You should never need to worry about
+that stuff again. As a warning, this has only really been ironed out in
+1.1.1. If you create/modify a plugin to follow these rules, you must
+mention that it requires SquirrelMail 1.1.1 or later.
+
+After that, if you need further functions, just use
+
+ include('../functions/filename.php');
+
+in your script. Since 1.0.5, it was no longer necessary (nor recommended)
+to use the "if (! isset($filename_php))" syntax.
projects / squirrelmail.git / blobdiff