Implement Basic Auto-Transfer Functionality

[nprail]

Flow

loop:
  ping camera, if its there:
	if getUpdateStatus=1:
	  getFileList
	  sort by date
	  filterlist where date > timestampOnLastItemTransferred
	  sort filterlist by date
	  for each item in filterlist
		download item
		pull metadata from image (unless item data is good enough)
		move image to {base}\YYYY\YYYY-MM-DD\{imagename} (set extension to lower case)
		timestampOnLastItemTransferred from item 
		on failure, dump transferred file into "dead" item folder for inspection
  sleep 15 seconds

Research

• FlashAir Docs
• GetUpdateStatus (returns 1 if something has changed since the last time you asked) http://<flashair-ip>/command.cgi?op=102
• http://<flashair-ip>/command.cgi?op=100&DIR=/

WLANSD_FILELIST
,UPLOAD,0,16,0,0
,DCIM,0,16,19261,39097
,MISC,0,16,19261,37547
,scripts,0,16,19262,23814

• http://<flashair-ip>/command.cgi?op=100&DIR=/DCIM

WLANSD_FILELIST
/DCIM,100__TSB,0,16,19261,39097
/DCIM,EOSMISC,0,16,19261,37547

• http://<flashair-ip>/command.cgi?op=100&DIR=/DCIM/100__TSB

WLANSD_FILELIST
/DCIM/100__TSB,FA000001.JPG,128617,33,18660,35185
/DCIM/100__TSB,IMG_1264.JPG,6082228,32,19261,37563
/DCIM/100__TSB,IMG_1265.JPG,8601624,32,19261,38953
/DCIM/100__TSB,IMG_1266.JPG,8245121,32,19261,39033
/DCIM/100__TSB,IMG_1267.JPG,7453231,32,19261,39447
/DCIM/100__TSB,IMG_1268.JPG,5732330,32,19261,39539
/DCIM/100__TSB,IMG_1269.JPG,7176929,32,19261,39567
/DCIM/100__TSB,IMG_1270.JPG,7686705,32,19261,39572
/DCIM/100__TSB,IMG_1271.JPG,7815061,32,19261,39577
/DCIM/100__TSB,IMG_1272.JPG,7439681,32,19261,39587
/DCIM/100__TSB,IMG_1273.JPG,6722482,32,19262,22965

• Get one image: http://<flashair-ip>/DCIM/100__TSB/IMG_1270.JPG