Merge with WP 2.3 - testing use only!

Move pluggable functions out of wpmu-functions and into pluggable.php, fixes #439


git-svn-id: http://svn.automattic.com/wordpress-mu/trunk@1069 7be80a69-a1ef-0310-a953-fb0f7c49ff36

1 files changed, 313 insertions, 0 deletions

diff --git a/wp-includes/atomlib.php b/wp-includes/atomlib.php
new file mode 100644
index 0000000..a518908
--- /dev/null
+++ b/wp-includes/atomlib.php
@@ -0,0 +1,313 @@
+<?php
+/*
+ * atomlib.php - Atom Syndication Format PHP Library
+ *
+ * Project: http://code.google.com/p/phpatomlib/
+ *
+ * Author: Elias Torres <elias@torrez.us>
+ * Version: 0.4
+ *
+ */
+
+class AtomFeed {
+    var $links = array();
+    var $categories = array();
+
+    var $entries = array();
+}
+
+class AtomEntry {
+    var $links = array();
+    var $categories = array();
+}
+
+class AtomParser {
+
+    var $NS = 'http://www.w3.org/2005/Atom';
+    var $ATOM_CONTENT_ELEMENTS = array('content','summary','title','subtitle','rights');
+    var $ATOM_SIMPLE_ELEMENTS = array('id','updated','published','draft');
+
+    var $debug = false;
+
+    var $depth = 0;
+    var $indent = 2;
+    var $in_content;
+    var $ns_contexts = array();
+    var $ns_decls = array();
+    var $content_ns_decls = array();
+    var $content_ns_contexts = array();
+    var $is_xhtml = false;
+    var $is_html = false;
+    var $is_text = true;
+    var $skipped_div = false;
+
+    var $FILE = "php://input";
+
+    var $feed;
+    var $current;
+
+    function AtomParser() {
+
+        $this->feed = new AtomFeed();
+        $this->current = null;
+        $this->map_attrs_func = create_function('$k,$v', 'return "$k=\"$v\"";');
+        $this->map_xmlns_func = create_function('$p,$n', '$xd = "xmlns"; if(strlen($n[0])>0) $xd .= ":{$n[0]}"; return "{$xd}=\"{$n[1]}\"";');
+    }
+
+    function _p($msg) {
+        if($this->debug) {
+            print str_repeat(" ", $this->depth * $this->indent) . $msg ."\n";
+        }
+    }
+
+    function error_handler($log_level, $log_text, $error_file, $error_line) {
+        $this->error = $log_text;
+    }
+
+    function parse() {
+
+        set_error_handler(array(&$this, 'error_handler'));
+
+        array_unshift($this->ns_contexts, array());
+
+        $parser = xml_parser_create_ns();
+        xml_set_object($parser, $this);
+        xml_set_element_handler($parser, "start_element", "end_element");
+        xml_parser_set_option($parser,XML_OPTION_CASE_FOLDING,0);
+        xml_parser_set_option($parser,XML_OPTION_SKIP_WHITE,0);
+        xml_set_character_data_handler($parser, "cdata");
+        xml_set_default_handler($parser, "_default");
+        xml_set_start_namespace_decl_handler($parser, "start_ns");
+        xml_set_end_namespace_decl_handler($parser, "end_ns");
+
+        $this->content = '';
+
+        $ret = true;
+
+        $fp = fopen($this->FILE, "r");
+        while ($data = fread($fp, 4096)) {
+            if($this->debug) $this->content .= $data;
+
+            if(!xml_parse($parser, $data, feof($fp))) {
+                trigger_error(sprintf(__('XML error: %s at line %d')."\n",
+                    xml_error_string(xml_get_error_code($xml_parser)),
+                    xml_get_current_line_number($xml_parser)));
+                $ret = false;
+                break;
+            }
+        }
+        fclose($fp);
+
+        xml_parser_free($parser);
+
+        restore_error_handler();
+
+        return $ret;
+    }
+
+    function start_element($parser, $name, $attrs) {
+
+        $tag = array_pop(split(":", $name));
+
+        switch($name) {
+            case $this->NS . ':feed':
+                $this->current = $this->feed;
+                break;
+            case $this->NS . ':entry':
+                $this->current = new AtomEntry();
+                break;
+        };
+
+        $this->_p("start_element('$name')");
+        #$this->_p(print_r($this->ns_contexts,true));
+        #$this->_p('current(' . $this->current . ')');
+
+        array_unshift($this->ns_contexts, $this->ns_decls);
+
+        $this->depth++;
+
+        if(!empty($this->in_content)) {
+
+            $this->content_ns_decls = array();
+
+            if($this->is_html || $this->is_text)
+                trigger_error("Invalid content in element found. Content must not be of type text or html if it contains markup.");
+
+            $attrs_prefix = array();
+
+            // resolve prefixes for attributes
+            foreach($attrs as $key => $value) {
+                $with_prefix = $this->ns_to_prefix($key, true);
+                $attrs_prefix[$with_prefix[1]] = $this->xml_escape($value);
+            }
+
+            $attrs_str = join(' ', array_map($this->map_attrs_func, array_keys($attrs_prefix), array_values($attrs_prefix)));
+            if(strlen($attrs_str) > 0) {
+                $attrs_str = " " . $attrs_str;
+            }
+
+            $with_prefix = $this->ns_to_prefix($name);
+
+            if(!$this->is_declared_content_ns($with_prefix[0])) {
+                array_push($this->content_ns_decls, $with_prefix[0]);
+            }
+
+            $xmlns_str = '';
+            if(count($this->content_ns_decls) > 0) {
+                array_unshift($this->content_ns_contexts, $this->content_ns_decls);
+                $xmlns_str .= join(' ', array_map($this->map_xmlns_func, array_keys($this->content_ns_contexts[0]), array_values($this->content_ns_contexts[0])));
+                if(strlen($xmlns_str) > 0) {
+                    $xmlns_str = " " . $xmlns_str;
+                }
+            }
+
+            array_push($this->in_content, array($tag, $this->depth, "<". $with_prefix[1] ."{$xmlns_str}{$attrs_str}" . ">"));
+
+        } else if(in_array($tag, $this->ATOM_CONTENT_ELEMENTS) || in_array($tag, $this->ATOM_SIMPLE_ELEMENTS)) {
+            $this->in_content = array();
+            $this->is_xhtml = $attrs['type'] == 'xhtml';
+            $this->is_html = $attrs['type'] == 'html' || $attrs['type'] == 'text/html';
+            $this->is_text = !in_array('type',array_keys($attrs)) || $attrs['type'] == 'text';
+            $type = $this->is_xhtml ? 'XHTML' : ($this->is_html ? 'HTML' : ($this->is_text ? 'TEXT' : $attrs['type']));
+
+            if(in_array('src',array_keys($attrs))) {
+                $this->current->$tag = $attrs;
+            } else {
+                array_push($this->in_content, array($tag,$this->depth, $type));
+            }
+        } else if($tag == 'link') {
+            array_push($this->current->links, $attrs);
+        } else if($tag == 'category') {
+            array_push($this->current->categories, $attrs);
+        }
+
+        $this->ns_decls = array();
+    }
+
+    function end_element($parser, $name) {
+
+        $tag = array_pop(split(":", $name));
+
+        $ccount = count($this->in_content);
+
+        # if we are *in* content, then let's proceed to serialize it
+        if(!empty($this->in_content)) {
+            # if we are ending the original content element
+            # then let's finalize the content
+            if($this->in_content[0][0] == $tag &&
+                $this->in_content[0][1] == $this->depth) {
+                $origtype = $this->in_content[0][2];
+                array_shift($this->in_content);
+                $newcontent = array();
+                foreach($this->in_content as $c) {
+                    if(count($c) == 3) {
+                        array_push($newcontent, $c[2]);
+                    } else {
+                        if($this->is_xhtml || $this->is_text) {
+                            array_push($newcontent, $this->xml_escape($c));
+                        } else {
+                            array_push($newcontent, $c);
+                        }
+                    }
+                }
+                if(in_array($tag, $this->ATOM_CONTENT_ELEMENTS)) {
+                    $this->current->$tag = array($origtype, join('',$newcontent));
+                } else {
+                    $this->current->$tag = join('',$newcontent);
+                }
+                $this->in_content = array();
+            } else if($this->in_content[$ccount-1][0] == $tag &&
+                $this->in_content[$ccount-1][1] == $this->depth) {
+                $this->in_content[$ccount-1][2] = substr($this->in_content[$ccount-1][2],0,-1) . "/>";
+            } else {
+                # else, just finalize the current element's content
+                $endtag = $this->ns_to_prefix($name);
+                array_push($this->in_content, array($tag, $this->depth, "</$endtag[1]>"));
+            }
+        }
+
+        array_shift($this->ns_contexts);
+
+        $this->depth--;
+
+        if($name == ($this->NS . ':entry')) {
+            array_push($this->feed->entries, $this->current);
+            $this->current = null;
+        }
+
+        $this->_p("end_element('$name')");
+    }
+
+    function start_ns($parser, $prefix, $uri) {
+        $this->_p("starting: " . $prefix . ":" . $uri);
+        array_push($this->ns_decls, array($prefix,$uri));
+    }
+
+    function end_ns($parser, $prefix) {
+        $this->_p("ending: #" . $prefix . "#");
+    }
+
+    function cdata($parser, $data) {
+        $this->_p("data: #" . str_replace(array("\n"), array("\\n"), trim($data)) . "#");
+        if(!empty($this->in_content)) {
+            array_push($this->in_content, $data);
+        }
+    }
+
+    function _default($parser, $data) {
+        # when does this gets called?
+    }
+
+
+    function ns_to_prefix($qname, $attr=false) {
+        # split 'http://www.w3.org/1999/xhtml:div' into ('http','//www.w3.org/1999/xhtml','div')
+        $components = split(":", $qname);
+
+        # grab the last one (e.g 'div')
+        $name = array_pop($components);
+
+        if(!empty($components)) {
+            # re-join back the namespace component
+            $ns = join(":",$components);
+            foreach($this->ns_contexts as $context) {
+                foreach($context as $mapping) {
+                    if($mapping[1] == $ns && strlen($mapping[0]) > 0) {
+                        return array($mapping, "$mapping[0]:$name");
+                    }
+                }
+            }
+        }
+
+        if($attr) {
+            return array(null, $name);
+        } else {
+            foreach($this->ns_contexts as $context) {
+                foreach($context as $mapping) {
+                    if(strlen($mapping[0]) == 0) {
+                        return array($mapping, $name);
+                    }
+                }
+            }
+        }
+    }
+
+    function is_declared_content_ns($new_mapping) {
+        foreach($this->content_ns_contexts as $context) {
+            foreach($context as $mapping) {
+                if($new_mapping == $mapping) {
+                    return true;
+                }
+            }
+        }
+        return false;
+    }
+
+    function xml_escape($string)
+    {
+             return str_replace(array('&','"',"'",'<','>'),
+                array('&amp;','&quot;','&apos;','&lt;','&gt;'),
+                $string );
+    }
+}
+
+?>