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#!/usr/bin/python3
# software for simple digital signage for astabeamer
# based on:
# HBUE, Antonio Ragagnin (2014)
#
# HBUE is an HTTP(S) Browse+Upload+Execute server.
# This tool runs an HTTP (or HTTPS) server, with the optional
# support of Basic Authentication. This server mainly furhishes
# a simple interface to upload, browse end execute files.
# Also, you can remove and download files.
#
# usage info: hbue.py --help
#
from crontab import CronTab
import http.server
import socketserver
import ssl
import os
import urllib.parse
import argparse
import base64
import cgi
import subprocess
import json
import psutil
from PIL import Image
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h_on=0
h_off=0
weekdays=""
metadata={}
metadata['sizes'] = []
currentimage=""
currentvideo=""
def set_cron(on,off,days):
my_cron=CronTab(user=True)
for job in my_cron:
if job.comment=="hdmi_on":
job.dow.clear()
for i in days:
job.dow.also.on(i)
job.hour.on(on)
print("ON:",job)
if job.comment=="hdmi_off":
job.dow.clear()
for i in days:
job.dow.also.on(i)
job.hour.on(off)
print("OFF:",job)
my_cron.write_to_user(user=True)
def main():
global metadata
chunk = 1024
folder = '.'
certificate = None
parser = argparse.ArgumentParser(description='HBUE is an HTTP(S) Browse+Upload+Execute server.\r\nAntonio Ragagnin (2014)')
parser.add_argument('--listen', type=str, help='listening mask (default: 0.0.0.0:4443)',default='0.0.0.0:4443')
parser.add_argument('--execute', type=str,help='command to execute on clicked files.')
parser.add_argument('--ssl', type=str, help='specify the .pem file to start an HTTPS server')
parser.add_argument('--credentials', type=str, help='login:password string')
parser.add_argument('--folder', type=str, help='folder to browse (default is current folder)',default='.')
parser.add_argument('--chunk', type=str, help='chunk download size in Bytes (default: 1024)')
args = parser.parse_args()
listen_t = (args.listen.split(':')[0],int(args.listen.split(':')[1]))
print ('server running on',listen_t,'...')
httpd = http.server.HTTPServer(listen_t, MyHandler)
#let's build an anonymous class and store it in the server
base64credentials = None
if(args.credentials!=None):base64credentials =base64.b64encode(bytes(args.credentials,'utf-8'))
httpd.context = type("", (), dict(
execute= args.execute, chunk=args.chunk,folder=args.folder,credentials=base64credentials
))()
if(args.ssl):
httpd.socket = ssl.wrap_socket (httpd.socket, certfile=args.ssl, server_side=True)
with open('meta.json') as json_file:
metadata = json.load(json_file)
httpd.serve_forever()
class MyHandler(http.server.BaseHTTPRequestHandler):
def getmetadata(self,fn):
res="doh !"
for p in metadata['sizes']:
if p["fname"]==fn:
res=str(p["x"])+" x "+str(p["y"])
break
#print("GETMETA: ",fn,res)
return res
def make_index(self):
self.send_response(200)
self.send_header('Content-type','text/html;charset=UTF-8')
self.end_headers()
page_tpl ="""<html>
<head>
<link rel="stylesheet" type="text/css" href="assets?style.css">
<link rel="stylesheet" type="text/css" href="assets?mtr-datepicker.min.css">
<link rel="stylesheet" type="text/css" href="assets?mtr-datepicker.default-theme.min.css"></head>
<script src="assets?/mtr-datepicker.min.js"></script>
<script src="assets?/init.js"></script>
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<table><th width="530px" align="left"><h3>Upload a file</h3><th align="left" width="80px"><h3>Manual</h3><th align="left"><h3>Schedule</h3><tr>
<td valign="top">
<b>Free Space: <p id="free">hallo</p></b><br>
<form method='POST' enctype='multipart/form-data'>
<input value="choose" type='file' accept="image/png,video/*" name='upfile'/>
<input type='hidden' name='path' value=''/><br><br>
<input type=submit value="Start upload"/>
</form>
<form method='POST' enctype='multipart/form-data'>
<input type='hidden' name='fname' value=''/><br/>
</form>
<td valign="top"><div onclick="manual('on')" id="m_on" class="mbutton">ON</div>
<br><div onclick="manual('off')" id="m_off" class="mbutton">OFF</div>
<td>
<table><th>ON<th>OFF<tr><td><div id="datepickerOn"></div><td><div id="datepickerOff"></div>
<td colspan="5"><td><div style="visibility:hidden;" id="setcronbtn" onclick="setcron()" title="set times" class="select">set Times</div>
<tr>
<td>
<div id="d1" class="weekday">MO</div><td>
<div id="d2" class="weekday">DI</div><td>
<div id="d3" class="weekday">MI</div><td>
<div id="d4" class="weekday">DO</div><td>
<div id="d5" class="weekday">FR</div><td>
<div id="d6" class="weekday">SA</div><td>
<div id="d7" class="weekday">SO</div>
</table>
</table>
<hr/>
<h3>Select media to show:</h3>
<table><td><h3>Images</h3><table><td>current Image: <div id="currentimage"></div><td align="right"><div id="noimage" class="mbutton">None</div></table><br>
<td width=10><td><h3>Videos</h3><table><td>current Video: <div id="currentvideo"></div><td align="right"><div onclick="novideo()" id="novideo" class="mbutton">None</div></table><br><tr><td valign=top><ul id="images">"""
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self.wfile.write(bytes(page_tpl, 'UTF-8'))
page_tpl="""</ul></table></body></html>"""
self.wfile.write(bytes(page_tpl, 'UTF-8'))
def do_AUTHHEAD(self):
header = self.headers['Authorization']
if not self.server.context.credentials:
return True
if header == None or header != 'Basic '+str(self.server.context.credentials.decode("utf-8")):
self.send_response(401)
self.send_header('WWW-Authenticate', 'Basic realm=\"HBUE login\"')
self.send_header('Content-type', 'text/html')
self.end_headers()
return False
else:
return True
def do_GET(self):
global currentimage
global currentvideo
global h_on
global h_off
if not self.do_AUTHHEAD():
return
try:
pages = urllib.parse.unquote(self.path).split('?')
if(len(pages)==1):
page = pages[0]
file = ''
else:
page = pages[0]
file = '?'.join(pages[1:])
if page == '/' :
self.make_index()
return
elif page == '/delete' :
filepath = urllib.parse.unquote(file) # remove leading '/'
if os.path.isdir(filepath):
print('deleting folder',filepath);
os.rmdir(filepath)
else:
os.remove(filepath)
self.make_index()
return
elif page == '/manual':
print("have manual")
param = urllib.parse.unquote(file) # remove leading '/'
print(param)
if param=="on":
print("hdmi on")
#pngview output is missing after hdmi off/on, restore previous
#os.system("pkill -f pngview")
#time.sleep(.2)
#current=os.listdir("/home/pi/image/")[0]
#os.system("/home/pi/raspidmx/pngview/pngview -l 10 "+"/home/pi/image/"+current+" &")
self.send_response(200)
self.send_header('Content-type','text/plain; charset=UTF-8')
self.end_headers()
self.wfile.write(bytes('ok',encoding='utf8'))
return
elif page == '/getimages':
print("have get images")
self.send_response(200)
self.send_header('Content-type','text/html; charset=UTF-8')
self.end_headers()
mypath = self.server.context.folder #os.path.abspath(relpath) # ; print abspath
for dp, dn, filenames in os.walk(mypath):
for f in sorted(filenames):
meta=self.getmetadata(f)
fname=f
fname,fe = os.path.splitext(fname)
fthumb="thumbnails?"+os.path.basename(fname)+"_thumbnail.png"
f = os.path.join(dp, f)
if f.find(".png")!=-1:
if fname+fe==currentimage:
self.wfile.write(bytes("\t\t<li class=\"selectmedia\"><table><td align=center width=145><img src=\""+fthumb+"\"><td><a title=\"delete\" class=\"delete\" href=\"/delete?%s\">delete</a><td><a title=\"select\" class=\"selected\" href=\"/execute?%s\">select</a><td width=145><a href=\"/download?%s\">%s</a><br>%s</table></li>\n" % (urllib.parse.unquote(f),urllib.parse.unquote(f),urllib.parse.unquote(f),fname,meta) , 'UTF-8'))
else:
self.wfile.write(bytes("\t\t<li class=\"selectmedia\"><table><td align=center width=145><img src=\""+fthumb+"\"><td><a title=\"delete\" class=\"delete\" href=\"/delete?%s\">delete</a><td><a title=\"select\" class=\"select\" href=\"/execute?%s\">select</a><td width=145><a href=\"/download?%s\">%s</a><br>%s</table></li>\n" % (urllib.parse.unquote(f),urllib.parse.unquote(f),urllib.parse.unquote(f),fname,meta) , 'UTF-8'))
return
elif page == '/novideo':
print("have novideo")
currentvideo=""
return
elif page == '/noimage':
print("have noimage")
currentimage=""
os.system("pkill -f pngview")
elif page == '/getcurrent':
print("have get current")
self.send_response(200)
self.send_header('Content-type','text/plain; charset=UTF-8')
self.end_headers()
currentvideo=""
currentimage=""
try:
currentimage=os.listdir("/home/pi/image")[0]
currentvideo=os.listdir("/home/pi/video")[0]
except:
pass
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self.wfile.write(bytes((currentimage+"|"+currentvideo),encoding='utf8'))
return
elif page == '/getvideos':
print("have get videos")
self.send_response(200)
self.send_header('Content-type','text/html; charset=UTF-8')
self.end_headers()
mypath = self.server.context.folder #os.path.abspath(relpath) # ; print abspath
for dp, dn, filenames in os.walk(mypath):
for f in sorted(filenames):
meta=self.getmetadata(f)
fname=f
fname,fe = os.path.splitext(fname)
fthumb="thumbnails?"+os.path.basename(fname)+"_thumbnail.png"
f = os.path.join(dp, f)
if f.find(".png")==-1:
if fname+fe==currentvideo:
self.wfile.write(bytes("\t\t<li class=\"selectmedia\"><table><td align=center width=145><img src=\""+fthumb+"\"><td><a title=\"delete\" class=\"delete\" href=\"/delete?%s\">delete</a><td><a title=\"select\" class=\"selected\" href=\"/execute?%s\">select</a><td width=145><a href=\"/download?%s\">%s</a><br>%s</table></li>\n" % (urllib.parse.unquote(f),urllib.parse.unquote(f),urllib.parse.unquote(f),fname,meta) , 'UTF-8'))
else:
self.wfile.write(bytes("\t\t<li class=\"selectmedia\"><table><td align=center width=145><img src=\""+fthumb+"\"><td><a title=\"delete\" class=\"delete\" href=\"/delete?%s\">delete</a><td><a title=\"select\" class=\"select\" href=\"/execute?%s\">select</a><td width=145><a href=\"/download?%s\">%s</a><br>%s</table></li>\n" % (urllib.parse.unquote(f),urllib.parse.unquote(f),urllib.parse.unquote(f),fname,meta) , 'UTF-8'))
return
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elif page == '/getfree':
print("have get free")
hdd = psutil.disk_usage('/')
freespace="%.2f" %(hdd.free/(2**30))
print (freespace)
self.send_response(200)
self.send_header('Content-type','text/plain; charset=UTF-8')
self.end_headers()
self.wfile.write(bytes(freespace,encoding='utf8'))
return
elif page == '/getcron':
print("have get cron")
my_cron=CronTab(user=True)
for job in my_cron:
print(job)
if job.comment=="hdmi_on":
h_on=str(job.hour)
weekdays=str(job.dow)
if job.comment=="hdmi_off":
h_off=str(job.hour)
weekdays=str(job.dow)
weekdays_u=weekdays.replace(",","")
print(h_on,h_off,weekdays_u)
r=h_on+","+h_off+","+weekdays_u
self.send_response(200)
self.send_header('Content-type','text/plain; charset=UTF-8')
self.end_headers()
self.wfile.write(bytes(r,encoding='utf8'))
return
elif page == '/setcron':
print("HAVE SET CRON")
param = urllib.parse.unquote(file) # remove leading '/'
print(param)
set_cron(param.split(",")[0],param.split(",")[1],param.split(",")[2])
self.make_index()
return
elif page == '/execute' :
filepath = urllib.parse.unquote(file) # remove leading '/'
fullname = filepath
if(not self.server.context.execute):
print('executing ',' '.join([fullname]));
if (fullname.find(".png")!=-1) or (fullname.find(".PNG")!=-1):
os.system("rm /home/pi/image/*")
subprocess.Popen(['cp',fullname,'/home/pi/image/'])
currentimage=os.path.split(fullname)[1]
self.make_index()
else:
os.system("rm /home/pi/video/*")
subprocess.Popen(['cp',fullname,'/home/pi/video/'])
currentvideo=os.path.split(fullname)[1]
self.make_index()
else:
print('executing ',' '.join([ self.server.context.execute,fullname]));
subprocess.Popen([ self.server.context.execute,fullname])
# self.make_index()
return
elif page == '/download' :
filepath = urllib.parse.unquote(file) # remove leading '/'
if self.path == '/favicon.ico' :
f = open( filepath, 'rb' )
else:
fname=filepath
#print(fname)
f = open( fname, 'rb' )
self.send_response(200)
self.send_header('Content-type','application/octet-stream')
self.send_header('Content-Disposition','attachment; filename="%s"' % os.path.basename(filepath))
self.end_headers()
for piece in MyHandler.read_in_chunks(f,self.server.context.chunk):
self.wfile.write(bytes(piece))
f.close()
return
elif page == '/assets' :
filepath = urllib.parse.unquote(file) # remove leading '/'
if self.path == '/favicon.ico' :
f = open( filepath, 'rb' )
else:
fname="/home/pi/assets/"+filepath
print(fname)
f = open( fname, 'rb' )
self.send_response(200)
self.send_header('Content-type','application/octet-stream')
self.send_header('Content-Disposition','attachment; filename="%s"' % os.path.basename(filepath))
self.end_headers()
for piece in MyHandler.read_in_chunks(f,self.server.context.chunk):
self.wfile.write(bytes(piece))
f.close()
return
elif page == '/thumbnails' :
filepath = urllib.parse.unquote(file) # remove leading '/'
if self.path == '/favicon.ico' :
f = open( filepath, 'rb' )
else:
fname="/home/pi/thumbnails/"+filepath
print(fname)
f = open( fname, 'rb' )
self.send_response(200)
self.send_header('Content-type','application/octet-stream')
self.send_header('Content-Disposition','attachment; filename="%s"' % os.path.basename(filepath))
self.end_headers()
for piece in MyHandler.read_in_chunks(f,self.server.context.chunk):
self.wfile.write(bytes(piece))
f.close()
return
# print ('nope: ',self.path)
return # be sure not to fall into "except:" clause ?
except IOError as e :
# debug
print (e)
self.send_error(404,'Error: %s' % str(e))
def read_in_chunks(file_object, chunk_size):
while True:
data = file_object.read(chunk_size)
if not data:
break
yield data
def do_POST(self):
global metadata
if not self.do_AUTHHEAD():
return
# global rootnode ## something remained in the orig. code
ctype, pdict = cgi.parse_header(self.headers['content-type'])
if ctype == 'multipart/form-data' :
# using cgi.FieldStorage instead, see
# http://stackoverflow.com/questions/1417918/time-out-error-while-creating-cgi-fieldstorage-object
fs = cgi.FieldStorage( fp = self.rfile,
headers = self.headers, # headers_,
environ={ 'REQUEST_METHOD':'POST' } # all the rest will come from the 'headers' object,
# but as the FieldStorage object was designed for CGI, absense of 'POST' value in environ
# will prevent the object from using the 'fp' argument !
)
## print 'have fs'
else: raise Exception("Unexpected POST request")
if(fs.getvalue("fname")):
new_folder =self.server.context.folder+os.sep+ fs.getvalue("fname")
if not os.path.isdir(new_folder):
print ('creating folder '+new_folder)
os.makedirs(new_folder)
self.make_index()
return
fs_up = fs['upfile']
folder = fs.getvalue("path")
filename = os.path.split(fs_up.filename)[1] # strip the path, if it presents
fullname = self.server.context.folder
fullname +=os.sep
fullname +=folder
fullname +=os.sep
fullname +=filename #os.path.join(folder,os.sep+filename)
fullname=fullname.replace(" ","_")
print (' uploading',fullname)
# check for copies :
if os.path.exists( fullname ):
fn,fe = os.path.splitext(fullname)
fullname_test = fn + '.copy'+fe
i = 2
while os.path.exists( fullname_test ):
fullname_test = fn + '.copy(%d)' % i +fe
i += 1
fullname = fullname_test
fn,fe = os.path.splitext(fullname)
if (fe==".png") or (fe==".PNG") or (fe==".mp4") or (fe==".MP4") or (fe==".m4v") or (fe==".M4V") or (fe==".mov") or (fe==".MOV"):
if not os.path.exists(fullname):
with open(fullname, 'wb') as o:
for piece in MyHandler.read_in_chunks(fs_up.file,self.server.context.chunk):
o.write( piece )
fn = os.path.basename(fn)
filename = f"{fn}_thumbnail.png"
print("thumbname: ",filename)
print("fe:",fe)
if (fe==".mp4") or (fe==".MP4") or (fe==".m4v") or (fe==".M4V") or (fe==".mov") or (fe==".MOV"):
cmd="ffprobe -v error -select_streams v:0 -show_entries stream=width,height -of csv=s=x:p=0 "+"uploads/"+fn+fe
cmdarray=cmd.split(" ")
result = subprocess.check_output(cmdarray, stderr=subprocess.STDOUT)
sz=result.decode('UTF-8')
xs=sz.split("x")[0]
ys=sz.split("x")[1]
metadata['sizes'].append({'fname': fn+fe,'x': xs,'y':ys})
with open('meta.json', 'w') as outfile:
json.dump(metadata, outfile)
cmd="ffmpegthumbnailer -s 200 -i uploads/"+fn+fe+" -o thumbnails/"+fn+"_thumbnail.png"
os.system(cmd)
#print(cmd)
if (fe==".png") or (fe==".PNG"):
image = Image.open(fullname)
print(image.size)
metadata['sizes'].append({'fname': fn+fe,'x': image.size[0],'y':image.size[1]})
image.thumbnail((200,200))
image.save("/home/pi/thumbnails/"+filename)
with open('meta.json', 'w') as outfile:
json.dump(metadata, outfile)
self.make_index()
if __name__ == "__main__":
main()