#!/usr/local/bin/python """gives fake apache dir interface""" base_url = "apache_dir.cgi?" head = """ Index of %(path)s

Index of %(path)s

      Name                    Last modified       Size  Description


"""

tail = """"""


def gen_link(str,pn):
    spacer = ''    
    newstr = str
    if len(newstr) > 20:
        newstr = newstr[:20] + '..>'
    if len(newstr) <= 20:
        spacer += " " * (23 - len(newstr))
    return '' + newstr  +  ' ' + spacer

def gen_time(secs):
    import time
    return time.strftime("%d-%b-%Y %R", time.localtime(secs))
 
def ls(path):
    import os
    rv = []
    if os.path.isdir(path):
        for fn in os.listdir(path):
            filename = os.path.join(path,fn)
            rv.append((filename,os.path.getmtime(filename),os.path.getsize(filename)))
    return rv        

ICNS = {'text':"/icons/text.gif",
        'image':"/icons/image2.gif",
        'audio':'/icons/sound2.gif',
        'video':'/icons/movie.gif'}
def icon_path(fn):
    t = guess_type(fn)
    t = t[:t.find('/')]
    if ICNS.has_key(t):
        return ICNS[t]
    return '/icons/blank.gif'
    
    

def index(path):
    print "Content-type: text/html\n\n",
    print head % {'path':path}	
    for fn,mt,sz in ls(path):
        pn = fn[fn.rfind('/')+1:]
        pn = base_url + pn
        fn = fn[fn.rfind('/')+1:]
        icnpath = icon_path(fn)
        print """[SND] %s %s %s""" % (icnpath, gen_link(fn,pn),gen_time(mt),sz)
    print tail

def guess_type(path):
    import posixpath,mimetypes
    extensions_map = mimetypes.types_map
    base, ext = posixpath.splitext(path)
    ext = ext.lower()
    if ext in extensions_map:
        return extensions_map[ext]
    else:
        return 'text/html'

def get_file(path):
    import sys,shutil,os,stat

    ## check if readable by all
    st = os.stat(path)
    mode = st[stat.ST_MODE]
    if int(oct(mode & 0777)[-1]) >= 4:
        sys.stdout.write("Content-type:" + guess_type(path) + '\n\n')
        shutil.copyfileobj(open(path), sys.stdout)
        sys.stdout.flush()
    else:    
        print "Content-type: text/html\n\n"
        print "
"
        print "no permission to read",path 
        print "
"
            

if __name__ == '__main__':
    path = "/csua/tmp"
    import sys,os
    urlpath = sys.argv[0]
    cginame = urlpath[urlpath.rfind('/')+1:]
    relpath = ''
    if len(sys.argv) > 1:
        relpath = sys.argv[1]

    combined_path = os.path.join(path,relpath)
    ## remove sneaky parent path ..
    combined_path = combined_path.replace('..','')

    
 #   print os.path.abspath(os.curdir)
    if os.path.isdir(combined_path):
        index(combined_path)
    elif os.path.exists(combined_path):
        get_file(combined_path)
    else:
        print "Content-type: text/html\n\n"
        print "
 Not found:"
        print combined_path
        print urlpath
        print cginame
        print relpath
        print guess_type(combined_path)

        print "
"