var page = require('webpage').create();
page.open('https://secure2.lionair.co.id/lionairibe/OnlineBooking.aspx', function (status) {
if (status !== 'success') {
console.log('Unable to access network');
} else {
var p = page.evaluate(function () {
return document.getElementsByTagName('html')[0].innerHTML
});
console.log(p);
}
phantom.exit();
});
I am getting this error : :
PhantomJS has crashed. Please read the crash reporting guide at https://github.com/ariya/phantomjs/wiki/Crash-Reporting and file a bug report at https://code.google.com/p/phantomjs/issues/entry with the crash dump file attached: /tmp/2b2956e8-26ff-b99e-68ba0a68-26e94c38.dmp
Segmentation fault (core dumped)
Related
I have been working on js-ipfs (0.49.0) and this was working fine but I started getting some issues, anyway I have finally come back to look at the code again and the connection works fine but when I attempt to upload I get a new error
Object is not async iterable
I am not sure what that means or how to address in my code a lot of the examples are for react and not vue
Any pointers much appiciated.
methods: {
async getIpfsNodeInfo() {
try {
// Await for ipfs node instance.
node = await ipfs
// console.log(node)
// Call ipfs `id` method.
// Returns the identity of the Peer.
const { agentVersion, id } = await node.id()
this.agentVersion = agentVersion
this.id = id
// Set successful status text.
this.status = 'Connected to IPFS 😊'
} catch (err) {
// Set error status text.
this.status = `Error: ${err}`
}
},
onFileSelected(event) {
this.selectedFile = event.target.files[0]
this.saveIPFS()
},
async saveIPFS() {
try {
for await (const result of node.add(this.selectedFile)) {
this.fileContents = result
this.getIPFS()
}
} catch (err) {
// Set error status text.
this.status = `Error: ${err}`
}
},
ipfs.add returns a single object since ipfs#0.48.0 - you need to change:
async saveIPFS() {
try {
for await (const result of node.add(this.selectedFile)) {
this.fileContents = result
this.getIPFS()
}
} catch (err) {
// Set error status text.
this.status = `Error: ${err}`
}
},
to:
async saveIPFS() {
try {
this.fileContents = await node.add(this.selectedFile)
this.getIPFS()
} catch (err) {
// Set error status text.
this.status = `Error: ${err}`
}
},
See the blog post for more: https://blog.ipfs.io/2020-07-20-js-ipfs-0-48/#ipfs-add
we are using peer js webrtc for video call. Everything is working fine just the problem is i am not able to switch camera during call. I have done some work where i can switch camera in local during call but its doesnt effect on remote area.
here is my code
$('select').on('change', function (e) {
navigator.mediaDevices.enumerateDevices().then(function (devices) {
var valueSelected = $("#myselect option:selected").val();
alert(valueSelected);
//var myselect = 0;
if (valueSelected == "0") {
var cameras = [];
devices.forEach(function (device) {
'videoinput' === device.kind && cameras.push(device.deviceId);
});
var constraints = { video: { deviceId: { exact: cameras[0] } } };
navigator.mediaDevices.getUserMedia(constraints).then(function (stream) {
window.localStream = stream;
myapp.setMyVideo(window.localStream)
//if (callback)
// callback();
}, function (err) {
console.log("The following error occurred: " + err.name);
alert('Unable to call ' + err.name)
});
}
else {
var cameras = [];
devices.forEach(function (device) {
'videoinput' === device.kind && cameras.push(device.deviceId);
});
var constraints = { video: { deviceId: { exact: cameras[1] } } };
navigator.mediaDevices.getUserMedia(constraints).then(function (stream) {
window.localStream = stream;
myapp.setMyVideo(window.localStream)
//if (callback)
// callback();
}, function (err) {
console.log("The following error occurred: " + err.name);
alert('Unable to call ' + err.name)
});
}
//var myselect = $("#myselect option:selected").val();
});
});
The recommended way to change stream when a peer-to-peer connection is established is to use replaceTrack function that does not require ICE renegotiation:
RTCRtpSender.replaceTrack
The documentation says:
Among the use cases for replaceTrack() is the common need to switch between the rear- and front-facing cameras on a phone. With replaceTrack(), you can simply have a track object for each camera and switch between the two as needed. See the example...
I'm developing a web application in NodeJS with an Express back-end. The application is running smoothly except that when a user signs up, a somewhat long operation is called on the back end that involves saving to a database, resizing an image, etc. It takes a few seconds for this process to complete, and during this time anyone else who makes a request to the server will receive a 503 error and will be unable to do anything, whether that's sending or receiving data. I am using asynchronous functions in order to do this whole process. I am using multer to read the file, fs to read and write the file, and Jimp to resize the image. The code is as shown below.
module.exports = function(router) {
router.route('/')
.post(function(req, res, next) {
upload(req, res, function(err) {
var salt = bcrypt.genSaltSync(saltRounds);
var identifier = makeIdentifier(req.body.first_name.trim())
let emailNotifications = 0;
if (req.body.email_notifications === 'true') {
emailNotifications = 1;
}
var signup = {
identifier: identifier,
first_name: toTitleCase(req.body.first_name.trim()),
last_name: req.body.last_name.trim(),
hobby: req.body.hobby,
type: 'user',
email: req.body.email.trim(),
email_notifications: emailNotifications,
password: bcrypt.hashSync(req.body.password, salt)
};
let ascii = /^[ -~]+$/;
for (var propertyName in signup) {
if (!ascii.test(signup[propertyName])) {
res.json({
reason: "invalid-characters"
});
return;
}
}
if (req.file.size > 5000000) {
res.json({
reason: "file-size"
});
return;
}
let emailExists = false;
db.doesEmailExist(req.body.email, function(err, results) {
if (err) {
res.status(500).send("Server error");
return;
} else {
if (results.length > 0) {
res.json({
reason: "email-exists"
});
return;
} else {
fs.readFile(req.file.path, function(err, data) {
let newPath = __dirname + "/profile-pictures/" + identifier + ".png";
fs.writeFile(newPath, data, function(err) {
if (err) {
console.log(err);
} else {
try {
Jimp.read(newPath, (err, file) => {
if (err) throw err;
file
.resize(300, 300) // resize
.quality(60) // set JPEG quality
.write(newPath); // save
});
} catch (error) {
res.json({
reason: "image-properties"
});
return
}
}
});
});
db.signup(signup, function(err, results) {
if (err) {
res.status(500).send("Server error");
return;
} else {
res.json({
success: true
});
return;
}
})
}
}
})
})
});
}
What is causing the server to respond with a 503 error? Any help would be appreciated, thanks!
I'm trying to use $.getJSON inside PhantomJS but impossible to get the result of it. Any solution? I can not simply load or includeJs directly. The page has to be called from the same domain.
So I want to open a page and do the call from there.
Here is my current code which is not working:
var jqueryUrl = "https://code.jquery.com/jquery-latest.min.js";
page.open("http://www.example.com/", function(status) {
if (status === "success") {
page.includeJs(jqueryUrl, function() {
var result = page.evaluate(function() {
$.getJSON('http://www.example.com/someJson', function(data) {
return data;
});
});
console.log(result);
phantom.exit();
});
} else {
phantom.exit(1);
}
});
Thanks for any help!
You need to use page.onCallback with a combination with window.callPhantom because you are making an HTTP request in phantomjs context and the result needs to be returned only after the request is done.
I haven't tested exactly this code, but it should be something like this:
var jqueryUrl = "https://code.jquery.com/jquery-latest.min.js";
page.open("http://www.example.com/", function(status) {
if (status === "success") {
page.onCallback(function(data) {
// got the data!
console.log(data);
phantom.exit();
});
page.includeJs(jqueryUrl, function() {
page.evaluate(function() {
$.getJSON('http://www.example.com/someJson', window.callPhantom);
});
});
} else {
phantom.exit(1);
}
});
I am filling out and submitting a form using PhantomJS and then outputting the resulting page. The thing is, I have no idea if this thing is being submitted at all.
I print the resulting page, but it's the same as the original page. I don't know if this is because it redirects back or I didn't submit it or I need to wait longer or or or. In a real browser it sends a GET and receives a cookie, which it uses to send more GETS before eventually receiving the final result - flight data.
I copied this example How to submit a form using PhantomJS, using a diferent url and page.evaluate functions.
var page = new WebPage(), testindex = 0, loadInProgress = false;
page.onConsoleMessage = function(msg) {
console.log(msg);
};
page.onLoadStarted = function() {
loadInProgress = true;
console.log("load started");
};
page.onLoadFinished = function() {
loadInProgress = false;
console.log("load finished");
};
var steps = [
function() {
//Load Login Page
page.open("http://www.klm.com/travel/dk_da/index.htm");
},
function() {
//Enter Credentials
page.evaluate(function() {
$("#ebt-origin-place").val("CPH");
$("#ebt-destination-place").val("CDG");
$("#ebt-departure-date").val("1/5/2013");
$("#ebt-return-date").val("10/5/2013");
});
},
function() {
//Login
page.evaluate(function() {
$('#ebt-flightsearch-submit').click() ;
# also tried:
# $('#ebt-flight-searchform').submit();
});
},
function() {
// Output content of page to stdout after form has been submitted
page.evaluate(function() {
console.log(document.querySelectorAll('html')[0].outerHTML);
});
}
];
interval = setInterval(function() {
if (!loadInProgress && typeof steps[testindex] == "function") {
console.log("step " + (testindex + 1));
steps[testindex]();
testindex++;
}
if (typeof steps[testindex] != "function") {
console.log("test complete!");
phantom.exit();
}
}, 50);
The site of interest is rather complicated to scrape. I logged the HTTP traffic from the US KLM site and got this:
GET /travel/us_en/apps/ebt/ebt_home.htm?name=on&ebt-origin-place=New+York+-+John+F.+Kennedy+International+%28JFK%29%2CNew+York&ebt-destination-place=Paris+-+Charles+De+Gaulle+Airport+%28CDG%29%2C+France&c%5B0%5D.os=JFK&c%5B0%5D.ost=airport&c%5B0%5D.ds=CDG&c%5B0%5D.dst=airport&c%5B1%5D.os=CDG&c%5B1%5D.ost=airport&c%5B1%5D.ds=JFK&inboundDestinationLocationType=airport&redirect=no&chdQty=0&infQty=0&c%5B0%5D.dd=2013-07-31&c%5B1%5D.dd=2013-08-14&c%5B1%5D.format=dd%2Fmm%2Fyyyy&flex=true&ebt-cabin-class=ECONOMY&adtQty=1&goToPage=&cffcc=ECONOMY&sc=false HTTP/1.1
Your injected values for the form elements are not what their server is looking for.
Inside page.evaluate(), you are sandboxed, but the sample code includes a hook to get sandboxed console activity onto the external console. For other debugging, you can also include object inspectors, etc., but they have to be injected into the page or part of the code passed into evaluate().