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Added error handling for no-card case and when proximity check is not supported.

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This commit is contained in:
Dom 2018-05-11 10:36:50 +01:00
commit a73d6e9b39
1 changed files with 14 additions and 6 deletions
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20
client/scripts/mifarePlus.lua
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@ -45,7 +45,9 @@ function sendRaw(rawdata, crc, power)
--unpack the first 4 parts of the result as longs, and the last as an extremely long string to later be cut down based on arg1, the number of bytes returned
local count,cmd,arg1,arg2,arg3,data = bin.unpack('LLLLH512',result)
returned_bytes = string.sub(data, 1, arg1 * 2)
print(("<recvd>: %s"):format(returned_bytes)) -- need to multiply by 2 because the hex digits are actually two bytes when they are strings
if returned_bytes ~= "" then
print(("<recvd>: %s"):format(returned_bytes)) -- need to multiply by 2 because the hex digits are actually two bytes when they are strings
end
return returned_bytes
else
err = "Error sending the card raw data."
@ -189,6 +191,10 @@ function proximityCheck()
--PreparePC--
commandString = PREPAREPC
response = sendRaw(commandString, true, true)
if(response == "") then
print("ERROR: This card does not support the Proximity Check command.")
return
end
OPT = string.sub(response, 5, 6)
if(tonumber(OPT) == 1) then
pps_present = true
@ -255,17 +261,19 @@ end
function main(args)
-- Initialize the card using the already-present read14a library
info,err = lib14a.read14443a(true, false)
--Perform PPS (Protocol and Parameter Selection) check to finish the ISO 14443-4 protocol.
--Perform RATS and PPS (Protocol and Parameter Selection) check to finish the ISO 14443-4 protocol.
response = sendRaw("e050", true, true)
if(response == nil) then
err = "No response from RATS"
if(response == "") then
print("No response from RATS.")
end
response = sendRaw("D01100", true, true)
if(response == nil) then
err = "No response from PPS check"
if(response == "") then
print("No response from PPS check.")
end
if err then
oops(err)
sendRaw(POWEROFF, false, false)
return
else
print(("Connected to card with a UID of %s."):format(info.uid))
end