Develop Reference

Python Discord Bot and JS custom google browser

i am new here and i wanted to create a custom Discord Bot. Starting with python, i was trying to implement a youtube searching feature to it, but i got locked away because of some user agent problem that looks overcomplicated for me, so i went to Developers.Google and i proceeded to create myself a custom search engine supposed to work with Youtube since i already had the API of it, but i realised that the code for it was in JS, thus making me ask the question : is it possible to make this custom search engine work with my Python Bot ?
here is my current code for it :
import urllib.parse, urllib.request, re
import aiohttp
import asyncio
from googleapiclient.discovery import build
def get_service():
return build("youtube", "v3", developerKey="edmond-dantefesses")
def search(term, channel):
service = get_service()
resp = service.search().list(
part="id",
q=term,
# safeSearch="none" if channel.is_nsfw() else "moderate",
videoDimension="2d",
).execute()
return resp["items"][0]["id"]["videoId"]
BASE = "https://youtube.com/results"
#bot.command()
async def YT(ctx, *, search):
p = {"search_query": search}
# Spoof a user agent header or the request will immediately fail
h = {"User-Agent": "Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.169 Safari/537.36"}
async with aiohttp.ClientSession() as bot:
async with bot.get(BASE, params=p, headers=h) as resp:
dom = await resp.text()
# open("debug.html", "w").write(dom)
found = re.findall(r'href"\/watch\?v=([a-zA-Z0-9_-]{11})', dom)
return f"https://youtu.be/{found[0]}"
i understand if my question sounds stupid or surreal and i thank you very much for your patience, have a good day :)

phantomjs and simple examples gives TypeError: Attempting to change the setter of an unconfigurable property

I'm working my way through the phantomjs examples but TypeError: Attempting to change the setter of an unconfigurable property. errors keep popping up. I wanted to pipe returned values to files but they are full of these error messages even with the simple examples see below.
var webPage = require('webpage');
var page = webPage.create();
page.settings.userAgent = 'Mozilla/5.0 (Linux; Android 9; SM-G960F Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/74.0.3729.157 Mobile Safari/537.36';
page.open('http://m.bing.com', function(status) {
var title = page.evaluate(function() {
return document.title;
});
console.log(title);
phantom.exit();
});
Produces:
Bing
TypeError: Attempting to change the setter of an unconfigurable property.
TypeError: Attempting to change the setter of an unconfigurable property.
It should send back just Bing any workarounds?
I'm using PhantomJS 2.1.1 on Ubuntu 18.04 64bit.

Undefined error in plupload dispatchEvent on Mac Safari

I am experiencing weird errors on Mac Safari with plupload.js. The method dispatchEvent has this line:
evt.type = eventType;
It sometimes throws this error:
TypeError: undefined is not an object (evaluating 'evt.type = eventType')" userAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_5) AppleWebKit/602.3.12 (KHTML, like Gecko) Version/10.0.2 Safari/602.3.12
The evt object is declared at the top of the method:
var evt = {};
It is not re-declared anywhere below. I am not able to reproduce this error locally, I have it in my logs from other users. How can this happen? Might it be a problem with JS implementation on Mac Safari so that some other thread is erasing the evt object?
EDIT: The problematic line of code is here https://github.com/moxiecode/plupload/blob/3.x/js/plupload.js#L2200

Error connecting to TM-U220

I have downloaded 2 javascript SDK for Epson printer that supports TM-U220, and both of them won't connect to my printer and won't print. But when I tried to use other SDK such as QZ Tray, it worked, but the QZ Tray must be turned on, I want this to work in android, so I use the javascript SDK from Epson.
The problem is when I use the printer sample that Epson provided in the javascript SDK and input the ip: 192.168.1.98, port: 9100, and device id: local_printer, I got this error :
connected to ePOS Device Service Interface is failed. [ERROR_TIMEOUT]
.
But the printer did a small printing, letter that I can't read, and at the very end of the print : 2http/1.1. And in the console :
OPTIONS https://192.168.1.98/cgi-bin/epos/service.cgi?devid=local_printer&timeout=10000 net::ERR_CONNECTION_REFUSED
and
OPTIONS https://192.168.1.98/cgi-bin/eposDisp/service.cgi?devid=local_display&timeout=10000 net::ERR_CONNECTION_REFUSED
I've also created my own simple code.
This is my first code using epos-2.3.0.js :
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>Print Test</title>
<script type="text/javascript" src="epos-2.3.0.js"></script>
<script type="text/javascript">
// Retrieving Printer objects (printer selection)
var printer = null;
// Retrieving Printer objects (printer selection)
// Creating ePOSDevice objects (device connection and communication)
var ePosDev = new epson.ePOSDevice();
function connect() {
var ipAddress = '192.168.1.98'; var port = '9100';
ePosDev.connect(ipAddress, port, callback_connect);
}
// Creating ePOSDevice objects (device connection and communication)
// Retrieving Printer objects (printer selection)
function callback_connect(resultConnect) {
var deviceId = 'local_printer';
var options = {'crypto' : false, 'buffer' : false};
if ((resultConnect == 'OK') || (resultConnect == 'SSL_CONNECT_OK')) {
// Retrieves the printer object
alert("Success callback connect");
ePostDev.createDevice(deviceId, ePosDev.DEVICE_TYPE_PRINTER, options, callback_createDevice);
}
else {
// Displays error messages
alert("Error callback connect");
}
}
function callback_createDevice(deviceObj, errorCode) {
if (deviceObj === null) {
// Displays an error message if the system fails to retreive the printer object
return;
}
printer = deviceObj;
// Registers the print complete event
printer.onreceive = function(response) {
if (response.success) {
// Displays the successful print message
alert("Callback create device response success");
}
else {
// Displays error messages
alert("Callback create device response failed");
}
}
}
// Retrieving Printer objects (printer selection)
// Creating print data (data buffering)
function createData() {
printer.addTextAlign(printer.ALIGN_CENTER);
printer.addText('Hello World\n');
}
// Creating print data (data buffering)
// Sending print data (printing and disconnection)
function send() {
if (ePosDev.isConnected) {
printer.send();
}
}
// Sending print data (printing and disconnection)
</script>
</head>
<body>
<input type="button" onclick="connect()" value="Connect" />
<input type="button" onClick="send()" value="Print Hello World" />
</body>
</html>
And this one I'm using epos-print-3.2.0.js :
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>Print Test 2</title>
<script type="text/javascript" src="epos-print-3.2.0.js"></script>
<script type="text/javascript">
function buildMessage() {
// Create a print document
var builder = new epson.ePOSBuilder();
builder.addTextLang('en');
builder.addTextSmooth(true);
builder.addTextFont(builder.FONT_A);
builder.addTextSize(3, 3);
builder.addText('Hello,\tWorld!\n');
builder.addCut(builder.CUT_FEED);
var request = builder.toString();
var address = 'http://192.168.1.98/cgi-bin/epos/service.cgi?devid=local_printer&timeout=10000';
// Create an ePOS-Print object
var epos = new epson.ePOSPrint(address);
//Send the print document
epos.send(request);
}
</script>
</head>
<body>
<button onclick="buildMessage()">Run</button>
</body>
</html>
When I run the second code, I got this error in my console :
OPTIONS http://192.168.1.98/cgi-bin/epos/service.cgi?devid=local_printer&timeout=10000
and
XMLHttpRequest cannot load http://192.168.1.98/cgi-bin/epos/service.cgi?devid=local_printer&timeout=10000. Response to preflight request doesn't pass access control check: No
'Access-Control-Allow-Origin' header is present on the requested
resource. Origin 'null' is therefore not allowed access. The response
had HTTP status code 405.
But When I change the address from
http://192.168.1.98/cgi-bin/epos/service.cgi?devid=local_printer&timeout=10000
to
http://192.168.1.98:9100/cgi-bin/epos/service.cgi?devid=local_printer&timeout=10000
it printed me this :
OPTIONS /cgi-bin/epos/service.cgi?devid=local-printer&timeout=10000
HTTP/1.1 Host: 192.168.1.98:9100 Connection: keep-alive Access-Control-Request-Method: POST Origin: null
User-Agent: Mizilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36
(KHTML, like Gecko) Chrome/52.0.2743.116 Safari/537.36
Access-Control-Request-Headers: content-type, if-modified-since,
soapaction Accept: */* Accept-Encoding: gzip,
deflate,sdch Accept=Language: en-US, en;q=0.8

I was getting the same errors for a new TM-T88VI. Then I saw in the ePOS SDK User's Manual that in order to control a TM printer you need to enable the ePOS-Print setting from within the EpsonNet Config on the printer.
Looking at the manual in order to control a TM-U220 directly (without using a TM Intelligent printer) you'll need to have a UB-E04 or UB-R04 network interface installed. It says you can check which interfaces are installed by printing a status sheet.

From the look of it, this is a Cross Origin HTTP Request issue (CORS). This MDN article explains this: https://developer.mozilla.org/en-US/docs/Web/HTTP/Access_control_CORS
I am guessing that the IP 92.168.1.98 is the printer IP (which is on the local network). See: http://trendblog.net/ever-wondered-use-192-168-x-x-ip-addresses-home/ and you can access it via port 9100 as described in your post above.
So since your actual web application is residing on a different IP than the printer IP and the way the web work, CORS is required when you are calling to a different IP / host so to prevent cross site scripting attack.
It's common sense that if the printer is exposing itself via port 9100, you should have that as part of your URI. That is the reason why http://192.168.1.98:9100/cgi-bin/epos/service.cgi?devid=local_printer&timeout=10000 works and the other one did not.
As for trying to access this via an Android device... the question is does the device is joined to your local network (192.168....) or is it on the Internet? If it is joined to the internet, I don't think you can access the printer which is probably not going to be exposed to the internet (having public IP). As long as they belong to the same network, they should be able to talk. If not, you will need to expose it to the internet (bad idea) or make sure they can see each other (Android connecting to your corporate WIFI and the printer can be reached via the WIFI).

I had the same problem with a TM-T20III. You have to use the utility software from Epson for your printer. In the advanced network settings, there is a menu which call "Filters" and I add the IP address of my POS as accept address.

But When I change the address from
http://192.168.1.98/cgi-bin/epos/service.cgi?devid=local_printer&timeout=10000
to
http://192.168.1.98:9100/cgi-bin/epos/service.cgi?devid=local_printer&timeout=10000
it printed me this :
Port 9100 is the raw input port of the printer, it seems to print the whole input request without interpreting it. ePOS Service seems to be available on ports 80 / 443.
I was getting the same errors for a new TM-T88VI. Then I saw in the ePOS SDK User's Manual that in order to control a TM printer you need to enable the ePOS-Print setting from within the EpsonNet Config on the printer.
Enabling the ePOS Print Service was the right solution for me. In order to do this, i had to update the firmware of the printer (TM-T88VI). In factory defaults, there was no option to switch on the ePOS Service.

Cross domain access permission denied in iframe

I am trying to embed OWA (Microsoft Exchange Server 2010) in a web page within an iframe but I get a JavaScript error on the OWA page saying Access Denied and then none of the controls within the OWA window work.
I have to use OWA in web page, I read in the form that cross domain does not work properly. Error comes as:
Client Information
User Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.11) Gecko/20101012 Firefox/3.6.11 GTB7.1 (.NET CLR 3.5.30729)
CPU Class: undefined
Platform: Win32
System Language: undefined
User Language: en-US
CookieEnabled: true
Exception Details
Date: Wed Oct 27 2010 10:17:05 GMT+0530 (India Standard Time)
Message: Permission denied for <http://domain_2> to get property HTMLIFrameElement.ownerDocument from <domain_1>.
Url: http://domain_2/owa/testuser#exch2k10.com/14.0.639.21/scripts/premium/uglobal.js
Line: 1
Call Stack
undefinedError()#:0 window$onerror("Permission denied for <http://domain_2> to get property HTMLIFrameElement.ownerDocument from <domain_1>.","http://domain_2/owa/testuser#exch2k10.com/14.0.639.21/scripts/premium/uglobal.js",1)#http://domain_2/owa/testuser#exch2k10.com/14.0.639.21/scripts/premium/uglobal.js:1 (domain_1>.","http://domain_2/owa/testuser#exch2k10.com/14.0.639.21/scripts/premium/uglobal.js",1%29#http://domain_2/owa/testuser#exch2k10.com/14.0.639.21/scripts/premium/uglobal.js:1) function Array$get_Length() { return this.length; } function Array$get_Item(index) { return this[index]; } function Array$get_Enumerator() { return new (Owa.Collections.ListEnumerator)(this); } function Array$remove(oItem) { var index = this.indexOf(oItem); if (index > -1) { this.splice(index, 1); } return index > -1; } function Array$removeAt(iIndex) { if (iIndex < this.length) { this.splice(iIndex, 1); return true; } return false; } function Array$add(oItem) { this.push(oItem); } function Array$clone() {
What I saw is that the error comes when uglobal.js which comes with the Exchange in the iframe trying to access property of parent.
Message: Permission denied for <http://domain_2> to get property HTMLIFrameElement.ownerDocument from <domain_1>.
Is there any other way by which I can use OWA in my page?

That's the cross domain policy restricting you. It's designed to prevent cross site scripting (XSS) attacks.
Basically, only pages from the same domain, protocol and port can alter each other's content.

I faced similar issues when trying to make cross domain calls. For IE8 you can use the following approach
var xdr = new XDomainRequest();
xdr.open("get", "http://domain2");
xdr.onload = function(){
//your code
};
xdr.send();
Additionally in IE only for testing purposes there is an option to add the specific address (domain1 in your case) to the trusted list Tools>Security>Trusted Sites>Sites and allow it to make cross domain requests by going to custom level and selecting Access data sources across domains. Please ensure the second is used only for testing.

If no JSONP solution exists, build a server side proxy.