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Small fix (added method attribute to form) and some comments for the future

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This commit is contained in:
defacer
2004-05-21 13:07:11 +00:00
parent 8792061c55
commit ab9f24ad00
1 changed files with 99 additions and 73 deletions
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lib/weblib.php
+99 -73
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@@ -62,13 +62,13 @@ function p($var) {
}
function nvl(&$var, $default="") {
/// if $var is undefined, return $default, otherwise return $var
/// if $var is undefined, return $default, otherwise return $var
return isset($var) ? $var : $default;
}
function strip_querystring($url) {
/// takes a URL and returns it without the querystring portion
/// takes a URL and returns it without the querystring portion
if ($commapos = strpos($url, '?')) {
return substr($url, 0, $commapos);
@@ -78,7 +78,7 @@ function strip_querystring($url) {
}
function get_referer() {
/// returns the URL of the HTTP_REFERER, less the querystring portion
/// returns the URL of the HTTP_REFERER, less the querystring portion
return strip_querystring(nvl($_SERVER["HTTP_REFERER"]));
}
@@ -88,7 +88,7 @@ function me() {
/// returns the name of the current script, WITH the querystring portion.
/// this function is necessary because PHP_SELF and REQUEST_URI and SCRIPT_NAME
/// return different things depending on a lot of things like your OS, Web
/// server, and the way PHP is compiled (ie. as a CGI, module, ISAPI, etc.)
/// server, and the way PHP is compiled (ie. as a CGI, module, ISAPI, etc.)
if (!empty($_SERVER["REQUEST_URI"])) {
return $_SERVER["REQUEST_URI"];
@@ -113,7 +113,7 @@ function me() {
function qualified_me() {
/// like me() but returns a full URL
/// like me() but returns a full URL
if (!empty($_SERVER["HTTP_HOST"])) {
$hostname = $_SERVER["HTTP_HOST"];
@@ -136,7 +136,7 @@ function qualified_me() {
function match_referer($goodreferer = "") {
/// returns true if the referer is the same as the goodreferer. If
/// goodreferer is not specified, use qualified_me as the goodreferer
/// goodreferer is not specified, use qualified_me as the goodreferer
global $CFG;
if (empty($CFG->secureforms)) { // Don't bother checking referer
@@ -147,8 +147,8 @@ function match_referer($goodreferer = "") {
return true;
}
if (empty($goodreferer)) {
$goodreferer = qualified_me();
if (empty($goodreferer)) {
$goodreferer = qualified_me();
}
return $goodreferer == get_referer();
}
@@ -158,9 +158,9 @@ function data_submitted($url="") {
/// Returns the data as an object, if it's found.
/// This object can be used in foreach loops without
/// casting because it's cast to (array) automatically
///
/// Checks that submitted POST data exists, and also
/// checks the referer against the given url (it uses
///
/// Checks that submitted POST data exists, and also
/// checks the referer against the given url (it uses
/// the current page if none was specified.
global $CFG;
@@ -181,9 +181,9 @@ function data_submitted($url="") {
}
function stripslashes_safe($string) {
/// stripslashes() removes ALL backslashes even from strings
/// stripslashes() removes ALL backslashes even from strings
/// so C:\temp becomes C:temp ... this isn't good.
/// The following should work as a fairly safe replacement
/// The following should work as a fairly safe replacement
/// to be called on quoted AND unquoted strings (to be sure)
$string = str_replace("\\'", "'", $string);
@@ -194,7 +194,7 @@ function stripslashes_safe($string) {
function break_up_long_words($string, $maxsize=20, $cutchar=' ') {
/// Given some normal text, this function will break up any
/// Given some normal text, this function will break up any
/// long words to a given size, by inserting the given character
$output = '';
@@ -270,7 +270,7 @@ function read_template($filename, &$var) {
/// the variables interpolated. all the variables must be in the $var[] array or
/// object (whatever you decide to use).
///
/// WARNING: do not use this on big files!!
/// WARNING: do not use this on big files!!
$temp = str_replace("\\", "\\\\", implode(file($filename), ""));
$temp = str_replace('"', '\"', $temp);
@@ -281,7 +281,7 @@ function read_template($filename, &$var) {
function checked(&$var, $set_value = 1, $unset_value = 0) {
/// if variable is set, set it to the set_value otherwise set it to the
/// unset_value. used to handle checkboxes when you are expecting them from
/// a form
/// a form
if (empty($var)) {
$var = $unset_value;
@@ -292,7 +292,7 @@ function checked(&$var, $set_value = 1, $unset_value = 0) {
function frmchecked(&$var, $true_value = "checked", $false_value = "") {
/// prints the word "checked" if a variable is true, otherwise prints nothing,
/// used for printing the word "checked" in a checkbox form input
/// used for printing the word "checked" in a checkbox form input
if ($var) {
echo $true_value;
@@ -302,9 +302,9 @@ function frmchecked(&$var, $true_value = "checked", $false_value = "") {
}
function link_to_popup_window ($url, $name="popup", $linkname="click here",
function link_to_popup_window ($url, $name="popup", $linkname="click here",
$height=400, $width=500, $title="Popup window", $options="none") {
/// This will create a HTML link that will work on both
/// This will create a HTML link that will work on both
/// Javascript and non-javascript browsers.
/// Relies on the Javascript function openpopup in javascript.php
/// $url must be relative to home page eg /mod/survey/stuff.php
@@ -321,9 +321,9 @@ function link_to_popup_window ($url, $name="popup", $linkname="click here",
}
function button_to_popup_window ($url, $name="popup", $linkname="click here",
function button_to_popup_window ($url, $name="popup", $linkname="click here",
$height=400, $width=500, $title="Popup window", $options="none") {
/// This will create a HTML link that will work on both
/// This will create a HTML link that will work on both
/// Javascript and non-javascript browsers.
/// Relies on the Javascript function openpopup in javascript.php
/// $url must be relative to home page eg /mod/survey/stuff.php
@@ -361,7 +361,7 @@ function close_window_button() {
function choose_from_menu ($options, $name, $selected="", $nothing="choose", $script="", $nothingvalue="0", $return=false) {
/// Given an array of value, creates a popup menu to be part of a form
/// $options["value"]["label"]
if ($nothing == "choose") {
$nothing = get_string("choose")."...";
}
@@ -400,7 +400,7 @@ function choose_from_menu ($options, $name, $selected="", $nothing="choose", $sc
} else {
echo $output;
}
}
}
function popup_form ($common, $options, $formname, $selected="", $nothing="choose", $help="", $helptext="", $return=false, $targetwindow="self") {
/// Implements a complete little popup form
@@ -411,16 +411,42 @@ function popup_form ($common, $options, $formname, $selected="", $nothing="choos
/// $nothing = The label for the "no choice" option
/// $help = The name of a help page if help is required
/// $helptext = The name of the label for the help button
/// $return = Boolean indicating whether the function should return the text
/// $return = Boolean indicating whether the function should return the text
/// as a string or echo it directly to the page being rendered
// TODO:
//
// * Make sure it's W3C conformant (<form name=""> has to go for example)
// * Code it in a way that doesn't require JS to be on. Example code:
// $selector .= '<form method="get" action="" style="display: inline;"><span>';
// $selector .= '<input type="hidden" name="var" value="value" />';
// if(!empty($morevars)) {
// $getarray = explode('&amp;', $morevars);
// foreach($getarray as $thisvar) {
// $selector .= '<input type="hidden" name="'.strtok($thisvar, '=').'" value="'.strtok('=').'" />';
// }
// }
// $selector .= '<select name="" onchange="form.submit();">';
// foreach($options as $id => $text) {
// $selector .= "\n<option value='$id'";
// if($option->id == $selected) {
// $selector .= ' selected';
// }
// $selector .= '>'.$text."</option>\n";
// }
// $selector .= '</select>';
// $selector .= '<noscript id="unique_id" style="display: inline;"> <input type="submit" value="'.get_string('somestring').'" /></noscript>';
// $selector .= '<script type="text/javascript">'."\n<!--\n".'document.getElementById("unique_id").style.display = "none";'."\n<!--\n".'</script>';
// $selector .= '</span></form>';
//
global $CFG;
if ($nothing == "choose") {
$nothing = get_string("choose")."...";
}
$startoutput = "<form target=\"{$CFG->framename}\" name=\"$formname\">";
$startoutput = "<form method=\"get\" target=\"{$CFG->framename}\" name=\"$formname\">";
$output = "<select name=\"popup\" onchange=\"$targetwindow.location=document.$formname.popup.options[document.$formname.popup.selectedIndex].value\">\n";
if ($nothing != "") {
@@ -497,7 +523,7 @@ function get_slash_arguments($file="file.php") {
}
$pathinfo = explode($file, $string);
if (!empty($pathinfo[1])) {
return $pathinfo[1];
} else {
@@ -525,20 +551,20 @@ function parse_slash_arguments($string, $i=0) {
function format_text_menu() {
/// Just returns an array of formats suitable for a popup menu
return array (FORMAT_MOODLE => get_string("formattext"),
return array (FORMAT_MOODLE => get_string("formattext"),
FORMAT_HTML => get_string("formathtml"),
FORMAT_PLAIN => get_string("formatplain"),
FORMAT_WIKI => get_string("formatwiki"));
}
function format_text($text, $format=FORMAT_MOODLE, $options=NULL, $courseid=NULL ) {
/// Given text in a variety of format codings, this function returns
/// Given text in a variety of format codings, this function returns
/// the text as safe HTML.
///
/// $text is raw text (originally from a user)
/// $format is one of the format constants, defined above
global $CFG, $course;
global $CFG, $course;
if (!empty($CFG->cachetext)) {
$time = time() - $CFG->cachetext;
@@ -602,7 +628,7 @@ function format_text($text, $format=FORMAT_MOODLE, $options=NULL, $courseid=NULL
}
function format_text_email($text, $format) {
/// Given text in a variety of format codings, this function returns
/// Given text in a variety of format codings, this function returns
/// the text as plain text suitable for plain email.
///
/// $text is raw text (originally from a user)
@@ -635,10 +661,10 @@ function format_text_email($text, $format) {
function filter_text($text, $courseid=NULL) {
/// Given some text in HTML format, this function will pass it
/// Given some text in HTML format, this function will pass it
/// through any filters that have been defined in $CFG->textfilterx
/// The variable defines a filepath to a file containing the
/// filter function. The file must contain a variable called
/// The variable defines a filepath to a file containing the
/// filter function. The file must contain a variable called
/// $textfilter_function which contains the name of the function
/// with $courseid and $text parameters
@@ -659,22 +685,22 @@ function filter_text($text, $courseid=NULL) {
function clean_text($text, $format=FORMAT_MOODLE) {
/// Given raw text (eg typed in by a user), this function cleans it up
/// Given raw text (eg typed in by a user), this function cleans it up
/// and removes any nasty tags that could mess up Moodle pages.
global $ALLOWED_TAGS;
switch ($format) {
switch ($format) {
case FORMAT_MOODLE:
case FORMAT_HTML:
case FORMAT_WIKI:
/// Remove tags that are not allowed
$text = strip_tags($text, $ALLOWED_TAGS);
/// Munge javascript: label
$text = str_ireplace("javascript:", "Xjavascript:", $text);
$text = str_ireplace("javascript:", "Xjavascript:", $text);
/// Remove script events
$text = eregi_replace("([^a-z])language([[:space:]]*)=", "\\1Xlanguage=", $text);
$text = eregi_replace("([^a-z])on([a-z]+)([[:space:]]*)=", "\\1Xon\\2=", $text);
$text = eregi_replace("([^a-z])language([[:space:]]*)=", "\\1Xlanguage=", $text);
$text = eregi_replace("([^a-z])on([a-z]+)([[:space:]]*)=", "\\1Xon\\2=", $text);
return $text;
case FORMAT_PLAIN:
@@ -812,11 +838,11 @@ function convert_urls_into_links(&$text) {
"\\1<a href=\"\\2://\\3\\4\" target=\"newpage\">\\2://\\3\\4</a>", $text);
/// eg www.moodle.com
$text = eregi_replace("([[:space:]]|^|\(|\[)www\.([^[:space:]]*)([[:alnum:]#?/&=])",
$text = eregi_replace("([[:space:]]|^|\(|\[)www\.([^[:space:]]*)([[:alnum:]#?/&=])",
"\\1<a href=\"http://www.\\2\\3\" target=\"newpage\">www.\\2\\3</a>", $text);
}
function highlight($needle, $haystack, $case=0,
function highlight($needle, $haystack, $case=0,
$left_string="<span class=\"highlight\">", $right_string="</span>") {
/// This function will highlight search words in a given string
/// It cares about HTML and will not ruin links. It's best to use
@@ -866,7 +892,7 @@ function highlight($needle, $haystack, $case=0,
function highlightfast($needle, $haystack) {
/// This function will highlight instances of $needle in $haystack
/// It's faster that the above function and doesn't care about
/// It's faster that the above function and doesn't care about
/// HTML or anything.
$parts = explode(strtolower($needle), strtolower($haystack));
@@ -879,7 +905,7 @@ function highlightfast($needle, $haystack) {
$parts[$key] .= "<span class=\"highlight\">".substr($haystack, $pos, strlen($needle))."</span>";
$pos += strlen($needle);
}
}
return (join('', $parts));
}
@@ -887,7 +913,7 @@ function highlightfast($needle, $haystack) {
/// STANDARD WEB PAGE PARTS ///////////////////////////////////////////////////
function print_header ($title="", $heading="", $navigation="", $focus="", $meta="",
function print_header ($title="", $heading="", $navigation="", $focus="", $meta="",
$cache=true, $button="&nbsp;", $menu="", $usexml=false) {
// $title - appears top of window
// $heading - appears top of page
@@ -948,7 +974,7 @@ function print_header ($title="", $heading="", $navigation="", $focus="", $meta=
} else {
$direction = " dir=\"ltr\"";
}
if (!$cache) { // Do everything we can to prevent clients and proxies caching
@header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
@header("Pragma: no-cache");
@@ -982,7 +1008,7 @@ function print_header ($title="", $heading="", $navigation="", $focus="", $meta=
}
function print_footer ($course=NULL) {
// Can provide a course object to make the footer contain a link to
// Can provide a course object to make the footer contain a link to
// to the course home page, otherwise the link will go to the site home
global $USER, $CFG, $THEME;
@@ -1013,10 +1039,10 @@ function style_sheet_setup($lastmodified=0, $lifetime=300, $themename="") {
/// approriately as well as the current path
global $CFG;
header("Last-Modified: " . gmdate("D, d M Y H:i:s", $lastmodified) . " GMT");
header("Expires: " . gmdate("D, d M Y H:i:s", time() + $lifetime) . " GMT");
header("Cache-control: max_age = $lifetime");
header("Cache-control: max_age = $lifetime");
header("Pragma: ");
header("Content-type: text/css"); // Correct MIME type
@@ -1085,7 +1111,7 @@ function print_heading_with_help($text, $helppage, $module="moodle", $icon="") {
helpbutton($helppage, $text, $module);
echo "</b></font></p>";
}
function print_continue($link) {
if (!$link) {
@@ -1282,7 +1308,7 @@ function print_user($user, $course) {
echo "<a href=\"$CFG->wwwroot/course/loginas.php?id=$course->id&user=$user->id\">$string->loginas</a><br />";
}
}
}
}
echo "<a href=\"$CFG->wwwroot/user/view.php?id=$user->id&course=$course->id\">$string->fullprofile...</a>";
echo '</font>';
@@ -1426,13 +1452,13 @@ function print_table($table) {
$countcols = count($table->head);;
echo "<tr>";
foreach ($table->head as $key => $heading) {
if (!isset($size[$key])) {
$size[$key] = "";
}
}
if (!isset($align[$key])) {
$align[$key] = "";
}
}
echo "<th valign=\"top\" ".$align[$key].$size[$key]." nowrap=\"nowrap\" class=\"generaltableheader\">$heading</th>";
}
echo "</tr>\n";
@@ -1447,13 +1473,13 @@ function print_table($table) {
foreach ($row as $key => $item) {
if (!isset($size[$key])) {
$size[$key] = "";
}
}
if (!isset($align[$key])) {
$align[$key] = "";
}
}
if (!isset($wrap[$key])) {
$wrap[$key] = "";
}
}
echo "<td ".$align[$key].$size[$key].$wrap[$key]." class=\"generaltablecell\">$item</td>";
}
}
@@ -1543,10 +1569,10 @@ function make_table($table) {
foreach ($table->head as $key => $heading) {
if (!isset($size[$key])) {
$size[$key] = "";
}
}
if (!isset($align[$key])) {
$align[$key] = "";
}
}
$output .= "<th valign=\"top\" ".$align[$key].$size[$key]." nowrap=\"nowrap\" class=\"{$table->class}header\">$fontsize$heading</th>";
}
$output .= "</tr>\n";
@@ -1557,13 +1583,13 @@ function make_table($table) {
foreach ($row as $key => $item) {
if (!isset($size[$key])) {
$size[$key] = "";
}
}
if (!isset($align[$key])) {
$align[$key] = "";
}
}
if (!isset($wrap[$key])) {
$wrap[$key] = "";
}
}
$output .= "<td ".$align[$key].$size[$key].$wrap[$key]." class=\"{$table->class}cell\">$fontsize$item</td>";
}
$output .= "</tr>\n";
@@ -1676,7 +1702,7 @@ function update_category_button($categoryid) {
} else {
$string = get_string("turneditingon");
$edit = "on";
}
}
return "<form target=\"$CFG->framename\" method=\"get\" action=\"$CFG->wwwroot/course/category.php\">".
"<input type=\"hidden\" name=\"id\" value=\"$categoryid\" />".
"<input type=\"hidden\" name=\"edit\" value=\"$edit\" />".
@@ -1835,7 +1861,7 @@ function navmenu($course, $cm=NULL, $targetwindow="self") {
$logslink = "<td><a target=\"$CFG->framename\" href=".
"\"$CFG->wwwroot/course/log.php?chooselog=1&user=0&date=0&id=$course->id&modid=$selectmod->cm\">".
"<img border=\"0\" height=\"16\" width=\"16\" src=\"$CFG->pixpath/i/log.gif\"></a></td>";
}
if ($backmod) {
$backmod = "<form action=\"$CFG->wwwroot/mod/$backmod->mod/view.php\" target=\"$CFG->framename\">".
@@ -1921,7 +1947,7 @@ function print_grade_menu($courseid, $name, $current, $includenograde=true) {
$helpicon = "$CFG->pixpath/help.gif";
$linkobject = "<img align=\"absmiddle\" border=\"0\" height=\"17\" width=\"22\" alt=\"$strscales\" src=\"$helpicon\" />";
link_to_popup_window ("/course/scales.php?id=$courseid&amp;list=true", "ratingscales",
link_to_popup_window ("/course/scales.php?id=$courseid&amp;list=true", "ratingscales",
$linkobject, 400, 500, $strscales);
}
@@ -1935,7 +1961,7 @@ function print_scale_menu($courseid, $name, $current) {
choose_from_menu(get_scales_menu($courseid), "$name", $current, "");
$helpicon = "$CFG->pixpath/help.gif";
$linkobject = "<img align=\"absmiddle\" border=\"0\" height=\"17\" width=\"22\" alt=\"$strscales\" src=\"$helpicon\" />";
link_to_popup_window ("/course/scales.php?id=$courseid&amp;list=true", "ratingscales",
link_to_popup_window ("/course/scales.php?id=$courseid&amp;list=true", "ratingscales",
$linkobject, 400, 500, $strscales);
}
@@ -1949,7 +1975,7 @@ function print_scale_menu_helpbutton($courseid, $scale) {
$strscales = get_string("scales");
$helpicon = "$CFG->pixpath/help.gif";
$linkobject = "<img align=\"absmiddle\" border=\"0\" height=\"17\" width=\"22\" alt=\"$scale->name\" src=\"$helpicon\" />";
link_to_popup_window ("/course/scales.php?id=$courseid&amp;list=true&amp;scale=$scale->id", "ratingscale",
link_to_popup_window ("/course/scales.php?id=$courseid&amp;list=true&amp;scale=$scale->id", "ratingscale",
$linkobject, 400, 500, $scale->name);
}
@@ -1960,7 +1986,7 @@ function error ($message, $link="") {
print_header(get_string("error"));
echo "<br />";
print_simple_box($message, "center", "", "#FFBBBB");
if (!$link) {
if ( !empty($SESSION->fromurl) ) {
$link = "$SESSION->fromurl";
@@ -1979,7 +2005,7 @@ function helpbutton ($page, $title="", $module="moodle", $image=true, $linktext=
// $title = the title of links, rollover tips, alt tags etc
// $module = which module is the page defined in
// $image = use a help image for the link? (true/false/"both")
// $text = if defined then this text is used in the page, and
// $text = if defined then this text is used in the page, and
// the $page variable is ignored.
global $CFG, $THEME;
@@ -2015,8 +2041,8 @@ function emoticonhelpbutton($form, $field) {
$SESSION->inserttextfield = $field;
helpbutton("emoticons", get_string("helpemoticons"), "moodle", false, true);
echo "&nbsp;";
link_to_popup_window ("/help.php?module=moodle&amp;file=emoticons.html", "popup",
"<img src=\"$CFG->pixpath/s/smiley.gif\" border=\"0\" align=\"absmiddle\" width=\"15\" height=\"15\" />",
link_to_popup_window ("/help.php?module=moodle&amp;file=emoticons.html", "popup",
"<img src=\"$CFG->pixpath/s/smiley.gif\" border=\"0\" align=\"absmiddle\" width=\"15\" height=\"15\" />",
400, 500, get_string("helpemoticons"));
echo "<br />";
}
@@ -2059,7 +2085,7 @@ function redirect($url, $message="", $delay="0") {
echo "<meta http-equiv=\"refresh\" content=\"$delay; url=$url\" />";
echo "<script>location.replace('$url');</script>"; // To cope with Mozilla bug
} else {
if (empty($delay)) {
if (empty($delay)) {
$delay = 3; // There's no point having a message with no delay
}
print_header("", "", "", "", "<meta http-equiv=\"refresh\" content=\"$delay; url=$url\" />");
@@ -2071,7 +2097,7 @@ function redirect($url, $message="", $delay="0") {
sleep($delay);
echo "<script>location.replace('$url');</script>"; // To cope with Mozilla bug
}
die;
die;
}
function notify ($message, $color="red", $align="center") {
@@ -2132,7 +2158,7 @@ function obfuscate_mailto($email, $label="", $dimmed=false) {
$title = '';
$dimmed = '';
}
return sprintf("<a href=\"%s:%s\" $dimmed title=\"$title\">%s</a>",
return sprintf("<a href=\"%s:%s\" $dimmed title=\"$title\">%s</a>",
obfuscate_text('mailto'), obfuscate_email($email),
obfuscate_text($label));
}
@@ -2184,7 +2210,7 @@ function print_paging_bar($totalcount, $page, $perpage, $baseurl) {
//This function is used to rebuild the <nolink> tag because some formats (PLAIN and WIKI)
//will transform it to html entities
function rebuildnolinktag($text) {
$text = preg_replace('/&lt;(\/*nolink)&gt;/i','<$1>',$text);
return $text;