Diffstat (limited to 'backend/php/src/setup/data_initialization/read_dump_lib.php') (more/less context) (ignore whitespace changes)
| -rw-r--r-- | backend/php/src/setup/data_initialization/read_dump_lib.php | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/backend/php/src/setup/data_initialization/read_dump_lib.php b/backend/php/src/setup/data_initialization/read_dump_lib.php new file mode 100644 index 0000000..ed579ab --- a/dev/null +++ b/backend/php/src/setup/data_initialization/read_dump_lib.php @@ -0,0 +1,205 @@ +<?php +/* $Id: read_dump.lib.php,v 2.11 2006/01/17 17:02:30 cybot_tm Exp $ */ +// vim: expandtab sw=4 ts=4 sts=4: + +/** + * Removes comment lines and splits up large sql files into individual queries + * + * Last revision: September 23, 2001 - gandon + * + * @param array the splitted sql commands + * @param string the sql commands + * @param integer the MySQL release number (because certains php3 versions + * can't get the value of a constant from within a function) + * + * @return boolean always true + * + * @access public + */ +function PMA_splitSqlFile(&$ret, $sql, $release) +{ + // do not trim, see bug #1030644 + //$sql = trim($sql); + $sql = rtrim($sql, "\n\r"); + $sql_len = strlen($sql); + $char = ''; + $string_start = ''; + $in_string = FALSE; + $nothing = TRUE; + $time0 = time(); + + for ($i = 0; $i < $sql_len; ++$i) { + $char = $sql[$i]; + + // We are in a string, check for not escaped end of strings except for + // backquotes that can't be escaped + if ($in_string) { + for (;;) { + $i = strpos($sql, $string_start, $i); + // No end of string found -> add the current substring to the + // returned array + if (!$i) { + $ret[] = array('query' => $sql, 'empty' => $nothing); + return TRUE; + } + // Backquotes or no backslashes before quotes: it's indeed the + // end of the string -> exit the loop + elseif ($string_start == '`' || $sql[$i-1] != '\\') { + $string_start = ''; + $in_string = FALSE; + break; + } + // one or more Backslashes before the presumed end of string... + else { + // ... first checks for escaped backslashes + $j = 2; + $escaped_backslash = FALSE; + while ($i-$j > 0 && $sql[$i-$j] == '\\') { + $escaped_backslash = !$escaped_backslash; + $j++; + } + // ... if escaped backslashes: it's really the end of the + // string -> exit the loop + if ($escaped_backslash) { + $string_start = ''; + $in_string = FALSE; + break; + } + // ... else loop + else { + $i++; + } + } // end if...elseif...else + } // end for + } // end if (in string) + + // lets skip comments (/*, -- and #) + elseif (($char == '-' && $sql_len > $i + 2 && $sql[$i + 1] == '-' && $sql[$i + 2] <= ' ') || $char == '#' || ($char == '/' && $sql_len > $i + 1 && $sql[$i + 1] == '*')) { + $i = strpos($sql, $char == '/' ? '*/' : "\n", $i); + // didn't we hit end of string? + if ($i === FALSE) { + break; + } + if ($char == '/') { + $i++; + } + } + + // We are not in a string, first check for delimiter... + elseif ($char == ';') { + // if delimiter found, add the parsed part to the returned array + $ret[] = array('query' => substr($sql, 0, $i), 'empty' => $nothing); + $nothing = TRUE; + $sql = ltrim(substr($sql, min($i + 1, $sql_len))); + $sql_len = strlen($sql); + if ($sql_len) { + $i = -1; + } else { + // The submited statement(s) end(s) here + return TRUE; + } + } // end elseif (is delimiter) + + // ... then check for start of a string,... + elseif (($char == '"') || ($char == '\'') || ($char == '`')) { + $in_string = TRUE; + $nothing = FALSE; + $string_start = $char; + } // end elseif (is start of string) + + elseif ($nothing) { + $nothing = FALSE; + } + + // loic1: send a fake header each 30 sec. to bypass browser timeout + $time1 = time(); + if ($time1 >= $time0 + 30) { + $time0 = $time1; + header('X-pmaPing: Pong'); + } // end if + } // end for + + // add any rest to the returned array + if (!empty($sql) && preg_match('@[^[:space:]]+@', $sql)) { + $ret[] = array('query' => $sql, 'empty' => $nothing); + } + + return TRUE; +} // end of the 'PMA_splitSqlFile()' function + + +/** + * Reads (and decompresses) a (compressed) file into a string + * + * @param string the path to the file + * @param string the MIME type of the file, if empty MIME type is autodetected + * + * @global array the phpMyAdmin configuration + * + * @return string the content of the file or + * boolean FALSE in case of an error. + */ +function PMA_readFile($path, $mime = '') { + global $cfg; + + if (!file_exists($path)) { + return FALSE; + } + switch ($mime) { + case '': + $file = @fopen($path, 'rb'); + if (!$file) { + return FALSE; + } + $test = fread($file, 3); + fclose($file); + if ($test[0] == chr(31) && $test[1] == chr(139)) { + return PMA_readFile($path, 'application/x-gzip'); + } + if ($test == 'BZh') { + return PMA_readFile($path, 'application/x-bzip'); + } + return PMA_readFile($path, 'text/plain'); + case 'text/plain': + $file = @fopen($path, 'rb'); + if (!$file) { + return FALSE; + } + $content = fread($file, filesize($path)); + fclose($file); + break; + case 'application/x-gzip': + if ($cfg['GZipDump'] && @function_exists('gzopen')) { + $file = @gzopen($path, 'rb'); + if (!$file) { + return FALSE; + } + $content = ''; + while (!gzeof($file)) { + $content .= gzgetc($file); + } + gzclose($file); + } else { + return FALSE; + } + break; + case 'application/x-bzip': + if ($cfg['BZipDump'] && @function_exists('bzdecompress')) { + $file = @fopen($path, 'rb'); + if (!$file) { + return FALSE; + } + $content = fread($file, filesize($path)); + fclose($file); + $content = bzdecompress($content); + } else { + return FALSE; + } + break; + default: + return FALSE; + } + return $content; +} + +?> |