Connect To Tcp Port Using Script?
Aug 17, 2009
I'm a newbie to javascript programming and I'm seeking on a solution on how to connect to a tcp port using javascript. Basically, we have phone server that is constantly streaming XML data on port 1024 (serverIP:1024). I've ran a packet sniffer and was able to gather the elements and attributes for the XML data that the server is streaming. Now, I have a test XML parser which works with the XML document using the elements and attributes i've gathered from the packet sniffer. Is there a way for me to connect to the TCP port i've mentioned using javascript and incorporate it with the XML parser that I have. code...
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Sep 16, 2005
Is JavaScript able to send/listen for data on a specific port? I'm seeking
a solution to real time data interaction with my web server that doesn't
require refreshing the page. I.e., a chat room, where the data can be
broadcast from the server arbitrarily and displayed by the client
browser(s). To accomplish the data transmission can I use JS, or do I need
to augment my client-side platform to something like Java, et al?
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Nov 7, 2005
Basically, I want to have a javascript that will watch for data coming
in on a specific port - like HTTP on port 80, etc. Is this at all
possible with pure javascript?
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Aug 5, 2009
I am planning to use a USB barcode scanner and use web browsers as my interface.
Is it possible to parse the USB port via javascript? (or any client-side languages)
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Mar 30, 2009
I have been directed from .NET section to this section. My original post and question are here. forums.devshed.com/net-development-87/asp-net-how-to-send-data-to-parallel-port-600691.html
Is it possible to send data to parallel port using javascript?
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Dec 7, 2002
Okay, this an attempt to port PHP's date() function as much as possible to JavaScript. Could use some refactoring though. Any critique, comments, appraisal and any other opinion is very welcome. Feel free to discuss and also take a look at beetles code here: http://www.codingforums.com/showthread.php?s=&threadid=11069
Oh, and the date() function is described here: http://www.php.net/manual/en/function.date.php
Date.prototype.monthNames = new Array(
"January", "February", "March", "April",
"May", "June", "July", "August",
"September", "October", "November", "December"
);
Date.prototype.dayNames = new Array(
"Sunday", "Monday", "Tuesday", "Wednesday",
"Thursday", "Friday", "Saturday"
);
Date.prototype.format = function (formatStr) {
var heap = formatStr.split("");
var resHeap = new Array(heap.length);
var escapeChar = ""; // you can change this to something different, but
// don't use a character that has a formatting meaning,
// unless you want to disable it's functionality
// go through array and extract identifiers from its fields
for (var i = 0; i < heap.length; i++) {
switch(heap[i]) {
case escapeChar:
resHeap[i] = heap[i+1];
i++;
break;
case "a": // "am" or "pm"
var temp = this.getHours();
resHeap[i] = (temp < 12) ? "am" : "pm";
break;
case "A": // "AM" or "PM"
var temp = this.getHours();
resHeap[i] = (temp < 12) ? "AM" : "PM";
break;
case "d": // day of the month, 2 digits with leading zeros; i.e. "01" to "31"
var temp = String(this.getDate());
resHeap[i] = (temp.length > 1) ? temp : "0" + temp;
break;
case "D": // day of the week, textual, 3 letters; i.e. "Fri"
var temp = this.dayNames[this.getDay()];
resHeap[i] = temp.substring(0, 3);
break;
case "F": // month, textual, long; i.e. "January"
resHeap[i] = this.monthNames[this.getMonth()];
break;
case "g": // hour, 12-hour format without leading zeros; i.e. "1" to "12"
var temp = this.getHours();
resHeap[i] = (temp <= 12) ? temp : (temp - 12);
break;
case "G": // hour, 24-hour format without leading zeros; i.e. "0" to "23"
resHeap[i] = String(this.getHours());
break;
case "h": // hour, 12-hour format; i.e. "01" to "12"
var temp = String(this.getHours());
temp = (temp <= 12) ? temp : (temp - 12);
resHeap[i] = (temp.length > 1) ? temp : "0" + temp;
break;
case "H": // hour, 24-hour format; i.e. "00" to "23"
var temp = String(this.getHours());
resHeap[i] = (temp.length > 1) ? temp : "0" + temp;
break;
case "i": // minutes; i.e. "00" to "59"
var temp = String(this.getMinutes());
resHeap[i] = (temp.length > 1) ? temp : "0" + temp;
break;
case "I": // "1" if Daylight Savings Time, "0" otherwise. Works only on the northern hemisphere
var firstDay = new Date(this.getFullYear(), 0, 1);
resHeap[i] = (this.getTimezoneOffset() != firstDay.getTimezoneOffset()) ? (1) : (0);
break;
case "J": // day of the month without leading zeros; i.e. "1" to "31"
resHeap[i] = this.getDate();
break;
case "l": // day of the week, textual, long; i.e. "Friday"
resHeap[i] = this.dayNames[this.getDay()];
break;
case "L": // boolean for whether it is a leap year; i.e. "0" or "1"
resHeap[i] = (this.getFullYear() % 4) ? false : true;
break;
case "m": // month; i.e. "01" to "12"
var temp = String(this.getMonth() + 1);
resHeap[i] = (temp.length > 1) ? temp : "0" + temp;
break;
case "M": // month, textual, 3 letters; i.e. "Jan"
resHeap[i] = this.monthNames[this.getMonth()];
break;
case "n": // month without leading zeros; i.e. "1" to "12"
resHeap[i] = this.getMonth() + 1;
break;
case "O": // Difference to Greenwich time in hours; i.e. "+0200"
var minZone = this.getTimezoneOffset();
var mins = minZone % 60;
var hour = String(((minZone - mins) / 60) * -1);
if (hour.charAt(0) != "-") {
hour = "+" + hour;
}
hour = (hour.length == 3) ? (hour) : (hour.replace(/([+-])(d)/, "$1" + 0 + "$2"));
resHeap[i] = hour + mins + "0";
break;
case "r": // RFC 822 formatted date; e.g. "Thu, 21 Dec 2000 16:01:07 +0200"
var dayName = this.dayNames[this.getDay()].substr(0, 3);
var monthName = this.monthNames[this.getMonth()].substr(0, 3);
resHeap[i] = dayName + ", " + this.getDate() + " " + monthName + this.format(" Y H:i:s O");
break;
case "s": // seconds; i.e. "00" to "59"
var temp = String(this.getSeconds());
resHeap[i] = (temp.length > 1) ? temp : "0" + temp;
break;
case "S": // English ordinal suffix for the day of the month, 2 characters; i.e. "st", "nd", "rd" or "th"
var temp = this.getDate();
var suffixes = ["st", "nd", "rd"];
var suffix = "";
if (temp >= 11 && temp <= 13) {
resHeap[i] = "th";
} else {
resHeap[i] = (suffix = suffixes[String(temp).substr(-1) - 1]) ? (suffix) : ("th");
}
break;
case "t": // number of days in the given month; i.e. "28" to "31"
resHeap[i] = this.getDay();
break;
/*
* T: Not implemented
*/
case "U": // seconds since the Unix Epoch (January 1 1970 00:00:00 GMT)
// remember that this does not return milisecs!
resHeap[i] = Math.floor(this.getTime() / 1000);
break;
case "w": // day of the week, numeric, i.e. "0" (Sunday) to "6" (Saturday)
resHeap[i] = this.getDay();
break;
case "W": // ISO-8601 week number of year, weeks starting on Monday
var startOfYear = new Date(this.getFullYear(), 0, 1, 0, 0, 0, 0);
var firstDay = startOfYear.getDay() - 1;
if (firstDay < 0) {
firstDay = 6;
}
var firstMonday = Date.UTC(this.getFullYear(), 0, 8 - firstDay);
var thisDay = Date.UTC(this.getFullYear(), this.getMonth(), this.getDate());
resHeap[i] = Math.floor((thisDay - firstMonday) / (1000 * 60 * 60 * 24 * 7)) + 2;
break;
case "y": // year, 2 digits; i.e. "99"
resHeap[i] = String(this.getFullYear()).substring(2);
break;
case "Y": // year, 4 digits; i.e. "1999"
resHeap[i] = this.getFullYear();
break;
case "z": // day of the year; i.e. "0" to "365"
var firstDay = Date.UTC(this.getFullYear(), 0, 0);
var thisDay = Date.UTC(this.getFullYear(), this.getMonth(), this.getDate());
resHeap[i] = Math.floor((thisDay - firstDay) / (1000 * 60 * 60 * 24));
break;
case "Z": // timezone offset in seconds (i.e. "-43200" to "43200").
resHeap[i] = this.getTimezoneOffset() * 60;
break;
default:
resHeap[i] = heap[i];
}
}
// return joined array
return resHeap.join("");
}
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Nov 3, 2010
I know about the same-origin policy and that one of the only ways to load data from a cross-domain is to load it as JSON. However, all I am trying to do is access data from a server on another port (which I believe the browser still treats as cross-domain). I need to do this because the server my application is on is a map server and the other server (Apache) is the only one that can handle php scripts. I have also tried out the plug-in from [URL] and while it works when I do $('#phpContent').load('http://www.google.com'); it doesn't work when I try $('#phpContent').load('http://localhost:80/mapScripts/getFiles.php'); I have also tried$.get('http://localhost:80/mapScripts/getFiles.php', function(data) { $('#phpContent').html(data); });
So here I am breaking my brain and do not know what else to attempt.
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May 13, 2009
I have created a payment system using Jquery. The problem I run into is when I move from http to https. I get the following error: Error: [Exception... "Access to restricted URI denied" code: "1012"
[Code]...
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Jun 21, 2010
Hides the element by sliding it down.
$("div").click(function () { $(this).hide("slide", { direction: "down" }, 1000); });
I am new to Jquery. How do I reverse this code to slide element into viewport as opposed to slide out of view port. This is the link to the effect [URL]. What I want to do is the element will be hidden originally on loading the page and then slides into view with a click anywhere on the page, an anchor or after a few seconds.
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Apr 6, 2009
I am working on a robot project, that is required to create a website to control the robot via serial port.. The website is plainly html, no linking to database is needed...
I have no idea how and what language to use and can JavaScript communicate with serial port? and how?
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Oct 28, 2010
I have got this xml file which has a background params which is <background>igmp:
{theme.background_video_ip}:1234</background>.
I have done the validation to check if the igmp protocol is used like this
if (clientSpecificData.background.substr(0, 7) == "igmp:") {
Right now I am trying to find out how I can use regular expressions to check whether a port number is used at the end.
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Nov 11, 2011
I'm trying to find the position of an element with respect to the view port area. So, when the user scrolls the page down, I want to know the x and y positions of the element with respect to the viewing (view port) area.
The overall goal is to know exactly where on the element this user clicked.
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Jun 15, 2006
I'm looking for connecting to a internet timeserver with java or javascript. I want to have the hour that is sent by the time server no matter what time is showed by the local system.
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Aug 30, 2011
Is it possible to connect to a sqlite database via javascript. And I do not mean the HTML 5 Web SQL Database, that is no problem. What I mean is a file-based SQLite database, which is in the same folder as the HTML page.Also, I can not use something like Google's API, only the javascript libraries I can then put in this folder.
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Mar 10, 2011
I am using this script to get the user image,name and email. now, how can I get those details and enter them into the database? I thought about Ajax to send a request like that: insertDB.php?image=abc&name=dan&email=dan@dan.com but its some kind of a security issue since bots could register to my website. (just send GET requests..).
[Code]...
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Apr 19, 2011
I am trying to connect to my SQL Server database & I have the following codes which doesn't work, it only showed "Display up to here":
var cn = new ActiveXObject("ADODB.Connection");
// the following info. is an example
var strConn = "Provider=sqloledb;SERVER=204.65.220.67,1000;DATABASE=WebTable;UID=ABC;PWD=password";
var SQL = "Select * from GuestName Where ID = 3865989";
alert ("Display up to here");
cn.Open(strConn);
rs.Open(SQL, cn);
[Code]...
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May 21, 2009
I want to find out if it is possible to write code which will enable a web page connect to an access database or any database with javascript code.
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Dec 13, 2010
I am new to JavaScript,
I need a javascript/html code for connecting CouchDB database, reading the content from couchdb database and displaying in the browser window.
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Jul 30, 2007
i am developing a website in html in which the contactus page i have to connect to ms access database i am not able to get it ,can any one tell me how to get that one.
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Oct 14, 2011
I am wanting to write some programs that connect in real time with a server. The problem is I do not have a server and really do not know a whole lot about servers. I do know the basics, it connects with sockets and uses a unique port but I do not know how to build one, So I turn here.
Is it possible to make a server using javascript? If not, then what language is used for servers? is it possible for JS to connect to a foriegn language server?
Anyone know where some good tuts are on this? I type in javascript server in yahoo and just get info on JSP and SSI's..
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