Correl Roush
5531fb7a24
git-svn-id: file:///srv/svn/scanner/trunk@3 a0501263-5b7a-4423-a8ba-1edf086583e7
335 lines
10 KiB
PHP
335 lines
10 KiB
PHP
<?php
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define( 'PHPPARSER_FETCH_CLASSES', 1 );
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define( 'PHPPARSER_FETCH_FUNCTIONS', 2 );
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define( 'PHPPARSER_FETCH_CALLS', 4 );
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define( 'PHPPARSER_FETCH_INCLUDES', 8 );
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define( 'PHPPARSER_FETCH_INTERNAL', 16 );
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define( 'PHPPARSER_FETCH_CONSTRUCTS', 32 );
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define( 'PHPPARSER_FETCH_EXPRESSIONS', 64 );
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define( 'PHPPARSER_FETCH_ALL', 65535 );
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define( 'PHPPARSER_CLASS_DEF', 1 );
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define( 'PHPPARSER_FUNCTION_DEF', 2 );
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define( 'PHPPARSER_FUNCTION_CALL', 3 );
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define( 'PHPPARSER_INCLUDE', 4 );
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define( 'PHPPARSER_EXPRESSION', 5 );
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define( 'PHPPARSER_LANGUAGE_CONSTRUCT', 6 );
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class PHPParser {
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var $fetch_mode;
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var $file_name;
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var $internal_functions;
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var $defined_functions;
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var $callbacks;
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function PHPParser( $fetch_mode = PHPPARSER_FETCH_ALL, $functionlist = array() ) {
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$this->reset( $fetch_mode );
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$this->internal_functions = get_defined_functions(); $this->internal_functions = $this->internal_functions['internal'];
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$this->addFunctionDefinitions( $functionlist );
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$this->callbacks = array();
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}
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function reset( $fetch_mode = null ) {
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if( $fetch_mode > 0 ) {
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$this->fetch_mode = $fetch_mode;
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}
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$this->file_name = '';
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$this->defined_functions = array();
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}
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function addFunctionDefinitions( $functionlist ) {
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if( is_array( $functionlist ) ) {
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array_merge( $this->defined_functions, $functionlist );
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}
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}
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function registerCallback( $function_name, $fetch_mode = PHPPARSER_FETCH_ALL ) {
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if( function_exists( $function_name ) ) {
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$this->callbacks[] = array(
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'function' => $function_name,
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'fetch' => $fetch_mode
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);
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return count( $this->callbacks );
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} else {
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return false;
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}
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}
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function foundObject( $object ) {
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if( !is_array( $object ) ) {
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// Now how the hell did that happen?
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return false;
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}
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foreach( $this->callbacks as $callback ) {
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call_user_func( $callback['function'], $object );
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}
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}
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function parseFile( $file ) {
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if( !file_exists( $file ) || !is_readable( $file ) ) { return false; }
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$this->file_name = $file;
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$this->parse( file_get_contents( $file ) );
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}
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function parse( $content ) {
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$tokens = token_get_all( $content );
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$line = 1;
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$depth = 0;
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$block = 0;
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$block_count = 0;
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$class = $classname = null;
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$function = $functionname = null;
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$switch = array();
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$expression = '';
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$line_text = '';
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$internal_functions = get_defined_functions(); $internal_functions = $internal_functions['internal'];
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$local_functions = array();
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$local_classes = array();
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$open_blocks = array( 0 );
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$in_string = false;
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foreach( $tokens as $token ) {
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//echo ( is_string( $token ) ? 'CHAR: ' . $token : token_name( $token[0] ) . ': ' . $token[1] ) . "\n";
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if( !in_array( 0, $open_blocks ) ) {
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//echo "PARSER ERROR: LOST ZERO BLOCK AT FILE {$this->file_name} LINE $line\n";
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$open_blocks = array_merge( array(0), $open_blocks );
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}
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$classname = isset( $class['name'] ) ? $class['name'] : '';
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$functionname = isset( $function['name'] ) ? $function['name'] : '';
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if( $token == '"' ) {
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$in_string = !$in_string;
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}
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if( $in_string ) {
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$expression .= is_string( $token ) ? $token : $token[1];
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$count = preg_match_all( '/\r?(\n|\r)/', is_string( $token ) ? $token : $token[1], $m );
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$line += $count;
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continue;
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}
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if( is_string( $token ) ) {
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// Single character token
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$text = $token;
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switch( $token ) {
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case '{':
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$block_count++;
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$block = $block_count;
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array_push( $open_blocks, $block );
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$depth = count( $open_blocks ) - 1;
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break;
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case '}':
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array_pop( $open_blocks );
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$depth = count( $open_blocks ) - 1;
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$block = $depth == 0 ? 0 : ( isset( $open_blocks[$depth] ) ? $open_blocks[$depth] : 0 );
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if( !empty( $class ) && $class['block'] == $block ) { $class = $functionname = null; }
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if( !empty( $function ) && $function['block'] == $block ) { $function = $functionname = null; }
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if( in_array( $block, $switch ) ) {
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array_pop( $open_blocks );
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$depth = count( $open_blocks ) - 1;
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$block = $depth == 0 ? 0 : $open_blocks[$depth-1];
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}
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break;
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case '(':
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if(
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(bool)($this->fetch_mode & PHPPARSER_FETCH_CALLS)
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&& !empty( $string )
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&& $last_token != T_FUNCTION
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&& $last_token != T_OBJECT_OPERATOR
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&& $last_token != T_NEW
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//&& ( (bool)($this->fetch_mode & PHPPARSER_FETCH_INTERNAL) && !in_array( $string, $this->internal_functions ) )
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) {
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$this->foundObject( array(
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'type' => PHPPARSER_FUNCTION_CALL,
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'name' => strtolower( $string ),
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'file' => $this->file_name,
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'line' => $line,
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'block' => $block,
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'depth' => $depth,
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'in_class' => $classname,
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'in_function' => $functionname,
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'open_blocks' => $open_blocks
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) );
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}
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break;
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}
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if( !in_array( $token, array( '(', ')' ) ) ) { $last_token = null; }
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if( (bool)($this->fetch_mode & PHPPARSER_FETCH_EXPRESSIONS) && in_array( $token, array( '{', '}', ';', '=', '?', ':' ) ) && strlen( trim( $expression ) ) > 0 ) {
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$this->foundObject( array(
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'type' => PHPPARSER_EXPRESSION,
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'name' => trim( $expression ),
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'file' => $this->file_name,
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'line' => $line,
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'block' => $block,
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'depth' => $depth,
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'in_class' => $classname,
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'in_function' => $functionname,
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'open_blocks' => $open_blocks
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) );
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$expression = '';
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} else { $expression .= $token; }
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} else {
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list($id, $text) = $token;
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switch( $id ) {
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case T_CURLY_OPEN:
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case T_DOLLAR_OPEN_CURLY_BRACES:
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$block_count++;
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$block = $block_count;
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array_push( $open_blocks, $block );
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$depth = count( $open_blocks ) - 1;
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break;
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case T_STRING:
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$string = $text;
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switch( $last_token ) {
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case T_CLASS:
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if( (bool)($this->fetch_mode & PHPPARSER_FETCH_CLASSES) ) {
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$this->foundObject( array(
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'type' => PHPPARSER_CLASS_DEF,
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'name' => strtolower( $string ),
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'file' => $this->file_name,
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'line' => $line,
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'block' => $block,
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'depth' => $depth,
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'in_class' => $classname,
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'in_function' => $functionname
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) );
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}
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$class = array( 'name' => $text, 'block' => $block );
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break;
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case T_FUNCTION:
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if( (bool)($this->fetch_mode & PHPPARSER_FETCH_FUNCTIONS) && empty( $classname ) ) { // Not interested in member function definitions
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$this->foundObject( array(
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'type' => PHPPARSER_FUNCTION_DEF,
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'name' => strtolower( $string ),
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'file' => $this->file_name,
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'line' => $line,
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'block' => $block,
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'depth' => $depth,
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'in_class' => $classname,
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'in_function' => $functionname
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) );
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}
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$function = array( 'name' => $text, 'block' => $block );
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break;
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}
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break;
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case T_CONSTANT_ENCAPSED_STRING:
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switch( $last_token ) {
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case T_INCLUDE:
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case T_INCLUDE_ONCE:
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case T_REQUIRE:
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case T_REQUIRE_ONCE:
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if( (bool)($this->fetch_mode & PHPPARSER_FETCH_INCLUDES) ) {
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$this->foundObject( array(
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'type' => PHPPARSER_INCLUDE,
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'name' => trim( str_replace( '\'', '', $text ) ),
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'file' => $this->file_name,
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'line' => $line,
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'block' => $block,
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'depth' => $depth,
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'in_class' => $classname,
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'in_function' => $functionname
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) );
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}
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break;
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}
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break;
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///*
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case T_SWITCH:
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$block_count++;
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$block = $block_count;
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array_push( $open_blocks, $block );
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$depth = count( $open_blocks ) - 1;
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$switch[$block] = $block;
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break;
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case T_CASE:
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case T_DEFAULT:
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// Each conditional of a switch statement is its own block
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array_pop( $open_blocks );
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$block_count++;
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$block = $block_count;
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array_push( $open_blocks, $block );
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$depth = count( $open_blocks ) - 1;
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break;
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//*/
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}
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if( !in_array( $id, array( T_WHITESPACE, /*T_COMMENT, T_DOC_COMMENT,*/ T_STRING ) ) ) { $string = null; $last_token = $id; }
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if( (bool)($this->fetch_mode & PHPPARSER_FETCH_CONSTRUCTS) && in_array( $id, array(
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T_ARRAY,
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T_ECHO,
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T_EMPTY,
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T_EVAL,
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T_EXIT,
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T_HALT_COMPILER,
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T_INCLUDE,
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T_INCLUDE_ONCE,
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T_ISSET,
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T_LIST,
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T_PRINT,
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T_REQUIRE,
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T_REQUIRE_ONCE,
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T_UNSET
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) ) ) {
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$this->foundObject( array(
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'type' => PHPPARSER_LANGUAGE_CONSTRUCT,
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'name' => $text,
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'file' => $this->file_name,
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'line' => $line,
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'block' => $block,
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'depth' => $depth,
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'in_class' => $classname,
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'in_function' => $functionname
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) );
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}
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$expression .= ( in_array( $id, array(
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/* Values */
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T_STRING,
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T_CHARACTER,
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T_CONSTANT_ENCAPSED_STRING,
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T_ENCAPSED_AND_WHITESPACE,
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T_WHITESPACE,
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T_DNUMBER,
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T_LNUMBER,
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T_NUM_STRING,
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T_VARIABLE,
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//T_ARRAY,
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T_STRING_VARNAME,
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/* Operators */
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T_BOOLEAN_AND,
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T_BOOLEAN_OR,
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T_DEC,
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T_INC,
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T_IS_EQUAL,
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T_IS_GREATER_OR_EQUAL,
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T_IS_IDENTICAL,
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T_IS_NOT_EQUAL,
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T_IS_NOT_IDENTICAL,
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T_IS_SMALLER_OR_EQUAL,
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T_LOGICAL_AND,
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T_LOGICAL_OR,
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T_LOGICAL_XOR,
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T_OBJECT_OPERATOR,
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T_DOUBLE_COLON,
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T_SL,
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T_SR,
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/* Casts */
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T_DOUBLE_CAST,
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T_INT_CAST,
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T_OBJECT_CAST,
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T_STRING_CAST,
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T_UNSET_CAST,
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/* Constructs */
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T_ECHO,
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T_PRINT
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) ) ) ? $text : ' ';
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$count = preg_match_all( '/\r?(\n|\r)/', $text, $m );
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$line += $count;
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}
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}
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}
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}
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?>
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