[GIS] ArcGIS local server using javascript api still does http gets to services.arcgisonline.com (internet)

arcgis-javascript-apiarcgis-server

We have setup a local server hosting the ArcGIS server software (10.1). We installed the ArcGIS JavaScript API on the same local server. Our goal is to supply maps when the client has no internet connection, only a local area connection.

When we run the client (i.e. using the JavaScript API from the local server), we can see that all of the java script files are pulled from the local server. However, once our java script code calls new esri.Map, we see that the javascript code starts to pull map data from http://services.arcgisonline.com.

I looked at the C:\ArcGIS\JavaScriptAPI33\arcgis_js_v33_api\library\3.3\jsapicompact\init.js code (this is where it resides on our local ArcGIS server) and I see many occurrences of http://services.arcgisonline.com. I am thinking I need to change all of these occurrences to be the local server but this was not a step in the installation instructions.

How can we prevent the JavaScript from going to the internet for any files (map data, javascript data, css, etc)?

I understand that the JavaScript is the controlling code that makes this happen but I thought that Esri would have handled that in their JavaScript logic.

Edit

I followed only the steps given in the readme (I have changed nothing else). As I said, all the JavaScript files come from the local server. Once I call "new esri.Map" in our java script code, I see the following "http gets" to services.arcgisonline.com:

 1. services.arcgisonline.com/ArcGIS/rest/info?f=json
 2. services.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer?f=json&callback=dojo.io.script.jsonp_dojoIoScript1._jsonpCallback
 3. services.arcgisonline.com/ArcGIS/rest/services/Reference/World_Boundaries_and_Places/MapServer?f=json&callback=dojo.io.script.jsonp_dojoIoScript2._jsonpCallback

You asked me "do we have any basemap or anything else in our map that comes from ArcGIS online?" My answer is no. But clearly (unless there is an ArcGIS bug) something is not working as we want it to because it ends up going to services.arcgisonline.com.

As your response is implying, it seems I do not understand the basemap values since I am using hybrid for the local server. Sounds like I need a different value there.

Here is the code snippet:

var l_Options =
{
zoom: 10,
sliderStyle: "small",
basemap: "hybrid",
infoWindow: g_Popup,
nav: true
};

map = new esri.Map("map_canvas", l_Options);
dojo.connect(map, "onLoad",
function()
{
    var l_ArcGISTiledMapServiceLayer = null;

    switch (g_strMappingEngine)
    {
    case 'esriLocalServer':
        /* ????
        l_ArcGISTiledMapServiceLayer =
        new esri.layers.ArcGISTiledMapServiceLayer(
        l_strMappingDataAddress
        );
        ???? */
        l_ArcGISTiledMapServiceLayer =
        new esri.layers.ArcGISDynamicMapServiceLayer(
        l_strMappingDataAddress
        );
        break;
    case 'esriInternet':
    default:
        l_ArcGISTiledMapServiceLayer =
        new esri.layers.ArcGISTiledMapServiceLayer(
        l_strMappingDataAddress
        );
        break;
    }

    map.addLayer(l_ArcGISTiledMapServiceLayer);
    ...

Best Answer

You are specifying that the map should be loaded with the "hybrid" map type (in your l_Options object), which is is one of the available map services hosted at services.arcgisonline.com/ArcGIS/rest/services.

In order to remove the dependency on ESRI services, you should not specify a basemap, and instead load your own layers from your own instance of ArcGIS Server.

Related Solutions

ArcGIS Server – Identify Layers from Multiple Instances

First, here is a simplified JavaScript API example to show the concept of using DeferredList to process multiple identify tasks:

//Assume that map is your map object
var idTask1, idTask2, idParams = new esri.tasks.IdentifyParameters();
var url1 = "<server1 url>", var url2 = "<server2 url>";
dojo.connect(map, "onLoad", initIdentifies);
function initIdentifies(map) { //map.onLoad passes in the map object
    idTask1 = new esri.tasks.IdentifyTask(url1);
    idTask2 = new esri.tasks.IdentifyTask(url2);
    //A few sample constant parameters. Set more or less as you need
    idParams.tolerance = 12;
    idParams.returnGeometry = true;
    idParams.layerOption = esri.tasks.IdentifyParameters.LAYER_OPTION_ALL;
    dojo.connect(map, "onClick", runIdentifies);
}
function runIdentifies(evt) {
    var defTask1 = new dojo.Deferred(), defTask2 = new dojo.Deferred;
    var dlTasks = new dojo.DeferredList([defTask1, defTask2]);
    dlTasks.then(showResults); //defTasks will fire after defTask1 and defTask2 have completed
    //These parameters change with each request
    idParams.width = map.width;
    idParams.height = map.height;
    idParams.geometry = evt.mapPoint;
    idParams.mapExtent = map.extent;
    try {
        idTask1.execute(idParams, defTask1.callback, defTask1.errback); //Pass the response into the callback on defTask1
    } catch (e) {
        console.log("Error caught");
        console.log(e);
        defTask1.errback(e); //If you get an error, execute the errback
    }
    try {
        idTask2.execute(idParams, defTask2.callback, defTask2.errback); //Pass the response into the callback on defTask2
    } catch (e) {
        console.log("Error caught");
        console.log(e);
        defTask2.errback(e); //If you get an error, execute the errback
    }
}
function showResults(r) {
    //The format of 'r' is [[Boolean task 1 success, [task 1 results]],[Boolean task 2 success, [task 2 results]]]
    //using the array 'r', build and show your infoWindow as normal
}

Then here is an example in jsFiddle that I think does what you want, runs using all visible layers in all visible dynamic map layers in the map.

http://jsfiddle.net/blordcastillo/mULcz/

All typos are fixed now :)

The basic idea is that whenever the map is clicked or visibility is toggled, the identify is rerun. When the identify is run, the number of identity tasks fired depends on the number of layers visible, and it waits until all layers return to display its results.

[GIS] arcgis server & reverse proxy server

our problem was similar to yours. I had several issues, that aren't addressed here, and also found some limitations in the software. I can’t say that I’m 100% sure it’s set up correctly, but it’s working from the fully qualified domain name. To use SSL properly through the reverse proxy the connection to your ArcGIS Server must also be using a secure connection. Essentially when using SSL you’ll want secure not only from the reverse-proxy, but also to the ArcGIS Server machine.

I started with changing IIS to require https for the ArcGIS Server machine. For IIS 7 on your ArcGIS Server machine setting up SSL is fairly straight forward. This link takes you to esri's website for instructions on setting up the SSL through IIS. They recommend a signed certificate, but we used a self-signed certificate on the ArcGIS Server machine. This saves having to pay a company like Verisign twice (once for the reverse proxy, and the other for the internal ArcGIS machine). Internal users that consume the services through an internal link will get a security warning. However, external users that follow the FQDN will not get a security warning, assuming your certificate on the reverse-proxy is a certified signed certificate. Once the SSL is setup on your ArcGIS Server machine, and has been tested, make changes to the httpd.conf file to reflect the https. (See code snip below.)

When setting up the reverse-proxy I found what, I think, is a better document to follow. This document was written for 9.2, 9.3, and 9.3.1, but still works for 10. While talking with esri support I asked why this document was 15 pages versus the other 3 page document for 10. Their short answer was that not everything was needed from the 15 page document. However, the 15 page document seemed to make more sense to me.

Once I had IIS on the ArcGIS Server machine requiring SSL I set the proxy passes in Apache to read https://... I also followed the instructions to use case-insensitive found in the 15 page document. Example:

ProxyPassMatch (?i)^/[arcgis_instance]/rest/services/(.*) https://[ip_address]/[arcgis_instance]/rest/services/$1
ProxyPassReverse /[arcgis_instance]/rest/services/ https://[ip_address]/[arcgis_instance]/rest/services/

Our instance on our ArcGIS Server was set to use port 8181 instead of 80. DON’T DO THIS! This is where there is a limitation in the software working with SSL. Our IT Department was using port 80 for some reason when we first set ArcGIS Server up on that server, and told us to use a different port. We had to re-install our instance of ArcGIS Server. The port 80 install in ArcGIS Server works alongside with port 443, so you won’t have to re-install your instance if set up to use port 80.

Edit your rest.config file to reflect the correct port and https. Example:

<SoapUrl>https://[fqdn]/[instance_name]/services</SoapUrl>
    <SoapSslUrl>https://[fqdn]/[instance_name]/services</SoapSslUrl>
<SslPort>443</SslPort>
  <ReverseProxyPort>80</ReverseProxyPort>
  <ReverseProxySslPort>443</ReverseProxySslPort>

If using the .NET wizard for .NET applications, edit the ApplicationBuilderConfig.xml found in C:\inetpub\wwwroot[instance name]\Manager\App_Data. Change the <DefaultHttpScheme> to https:// instead of http://.

One other thing we changed, though I don't know if this did anything, was we inserted SSLProxyEngine On just before the proxy passes.

I hope this helps. If you think I'm missing anything or have any questions please let me know, I'll be glad to try and help.

Edit

Best Answer

Related Solutions

ArcGIS Server – Identify Layers from Multiple Instances

[GIS] arcgis server & reverse proxy server

Related Question