CFLib.org – Common Function Library Project

Description:
unzipFile() utilizes the built in java.util.zip package and requires no software be installed on the server. Pass in the path to a zip file and a target directory and it will unzip the contents. Due to a bug in CFMX 6.0 the UDF does require CFMX 6.1.

Return Values:
void

Example:

<!--- 

unzipFile(expandPath("test.zip"), expandPath("targetDir/"))

--->

Parameters:

Full UDF Source:

/**
 * Unzips a file to the specified directory.
 * 
 * @param zipFilePath      Path to the zip file (Required)
 * @param outputPath      Path where the unzipped file(s) should go (Required)
 * @return void 
 * @author Samuel Neff (sam@serndesign.com) 
 * @version 1, September 1, 2003 
 */
function unzipFile(zipFilePath, outputPath) {
    var zipFile = ""; // ZipFile
    var entries = ""; // Enumeration of ZipEntry
    var entry = ""; // ZipEntry
    var fil = ""; //File
    var inStream = "";
    var filOutStream = "";
    var bufOutStream = "";
    var nm = "";
    var pth = "";
    var lenPth = "";
    var buffer = "";
    var l = 0;
     
    zipFile = createObject("java", "java.util.zip.ZipFile");
    zipFile.init(zipFilePath);
    
    entries = zipFile.entries();
    
    while(entries.hasMoreElements()) {
        entry = entries.nextElement();
        if(NOT entry.isDirectory()) {
            nm = entry.getName(); 
            
            lenPth = len(nm) - len(getFileFromPath(nm));
            
            if (lenPth) {
            pth = outputPath & left(nm, lenPth);
        } else {
            pth = outputPath;
        }
        if (NOT directoryExists(pth)) {
            fil = createObject("java", "java.io.File");
            fil.init(pth);
            fil.mkdirs();
        }
        filOutStream = createObject(
            "java", 
            "java.io.FileOutputStream");
        
        filOutStream.init(outputPath & nm);
        
        bufOutStream = createObject(
            "java", 
            "java.io.BufferedOutputStream");
        
        bufOutStream.init(filOutStream);
        
        inStream = zipFile.getInputStream(entry);
        buffer = repeatString(" ",1024).getBytes(); 
        
        l = inStream.read(buffer);
        while(l GTE 0) {
            bufOutStream.write(buffer, 0, l);
            l = inStream.read(buffer);
        }
        inStream.close();
        bufOutStream.close();
        }
    }
    zipFile.close();
}