Article
· Mar 2, 2017 1m read
Trusting the code you import

As more people join Developer Community, and with increasing efforts to promote code sharing, I'd like to draw fresh attention to this post I wrote a year ago. It spotlights a feature within the class compiler which is both useful and dangerous. When importing code (e.g. from an XML export of classes received from someone), it's worth considering the risks.

Even if that post doesn't seem relevant to you at the moment you may wish to note it for the future. A handy way of doing this is to click the star icon at the end of it.

2 1
0 337
InterSystems Developer Community is a community of 25,603 amazing developers
We're a place where InterSystems IRIS programmers learn and share, stay up-to-date, grow together and have fun!
Learn more
Question
· Mar 2, 2017
TLS Cipher Suite selection

Our client is a test out of 2016.1 (Build 656U) Healthshare that wants to do a one way SSL connection to our Java 1.7/Tomcat 8.0 server. We have yet to come up with a secure cipher set that Healthshare and Java agree on for the handshake. So far we've had to use these ciphers identified which are not recommended (though it does do a handshake properly).

0 1
0 1.2K

If your Ensemble environment is actually a HealthShare one, here's a snippet of information that I wasn't able to find in the documentation.

When a namespace is HealthShare-enabled it gets some mappings added to it in order to fetch stuff from the HSLIB database. The most obvious mapping is a package mapping that gives your namespace all the HS.* classes.

0 4
0 476

Hello. New to the forum and was hoping I could get some expert help here. I have one data set that is using CHD Logic to combine Procedure and Diagnosis codes to define Sensitive data and flag the record for additional protected filtering. The files coming in define what is flagged and the Clinical Info Rule and Clinical Info Type are tied to the flag in the file which identifies it as a additional protected record.

0 1
0 440

Hi, Community!

We have a new release here!

What has been introduced:

1. Better notifications

With this release I hope you will turn on back the email notifications because every new notification today in the beginning of itself will tell first, why did you get it describing the exact reason you got this particular notification. And if you don't want this type of notification to be delivered anymore click unsubscribe link in the notification and it will lead to the settings of this very type to alter.

1 6
0 450

Hi!

Consider I have a class Package.Data with Property UniqueStringValue as %String.

I introduced the Index for this property:

 Index ValueIndex on UniqueStringValue [Unique];

It works well. But if I try to check if there is an object with the certain value in code like this:

if ##class(Package.Data).ValueIndexExists(value)

this expression fails, if value="value", even if there is an instance with instance.UniqueStingValue="Value"

How can I set the index to prevent saving case sensitive values in this class?

0 6
0 655

I am having a problem getting pair key authentication to work on my local PC. I am using freeSShd as the SFTP server. I generated private and public keys using putty gen . I used these keys to successfully log into the root directory using both Winscp and Putty. But this is not working with an FTP Operation. Below is the error that results. freeSSHd server log shows that I log in but immediately disconnect.

I am working on HS2015.1.1 Please help !!

0 1
0 1.6K
Article
· Feb 24, 2017 1m read
Collision for SHA-1 hash algorithm

The recent announcement of a collision for the SHA-1 hash algorithm has caused some consternation:

https://shattered.io/

Here is some background to help put this in perspective.

Cryptographic hash functions can have a variety of properties. The property at issue here is:

"Collision resistance - it is computationally infeasible to find any two distinct inputs x, x' which hash to the same output, i.e., such that h(x) = h(x')."

(Menezes, van Oorchot, and Vanstone, "Handbook of Applied Cryptography", section 9.2.2)

2 0
0 652

Hi,

I just updated Atelier to 1.01.263 and now many of the Atelier icons/images are blurry and the spacing in the Atelier Explorer doesn't look right. This is on Windows 10. Is this a known issue? Are there any settings I need to adjust?

0 2
0 342

In my country we speak in spanish. My developing machine uses windows 8.1

I made a nice looking html mock-up using angular material (in Atom, writing in UTF-8). I just moved that mock-up to the CSP folder inside Ensemble and it shows the typical weird characters of character encoding problems.

Have you had an issue like this before?

My temporal solution for the html files: I just configured Atom to read the files in Windows 1252 encoding.

0 6
0 1.1K

Hi everyone, I have and Zen Mojo application, it's all working but I have some doubts about what is recommended to use: There is some reports of employees, for example, and actually I'm using some plugins : "Excelent export" to generate Excel reports and "jspdf" to generate PDF reports in client side.

I have an REST service, that receives the request, process and returns JSON, after client side receive the response it's processed.

- This can be slow/bad in applications with large data?

- It's better/recommended to use ZenReports even with ZenMojo applications?

1 2
0 428

While I can see the benefits that $ZSTORAGE could have if used properly, I have not seen it used in the environments I have worked in. I was wondering if there are any developers that promote its usage.

If used properly, I would imagine it could be highly effective in maximizing free memory since some processes will never go over X amount, while others may very well need much more.

0 2
0 434
Question
· Feb 21, 2017
Parse %ObjectIdentity

Hi!

I'm trying to implement %OnAfterDelete ClassMethod for persistent class. As a parameter it gets oid As %ObjectIdentity for the deleted object.

ClassMethod %OnAfterDelete(oid As %ObjectIdentity) As %Status

My question is: how to get ID value from %ObjectIdentity ?

0 2
0 585

I have one Ensemble EnsLib.File.OutboundAdapter which has several methods, each writing a different file. In my Ensemble Production I have configured this FileAdapter to write to a certain directory, but i'd rather have each method write to a different (sub)directory instead of writing all files to the same directory. How can I achieve that without splitting the methods into different business operations?

The current code just sets the filename and the output:

0 3
0 643

I have a business operation in an ensemble production to which I can send a test message which requires a date input. However, I can not seem to find out how I write the date in the test message. 1980-01-01, 01-01-1980, 50000 (cache integer encoding). But I constantly get an error: <ZODAT> zDateOfBirthDisplayToLogical+1^Ckey.Customer.1

0 2
0 652

Hi,

I am trying the following command in order to freeze the instance before backup is done:

csession CACHE -U%SYS "##Class(Backup.General).ExternalFreeze()"

The command requires user name and password to be supplied when prompted. Is there any way that this command can be run where it doesn't query the credentials? I am wondering if it can use OS level permissions (root or effective user who owns Cache processes etc) .

My test is on a CentOS 6 machine if that helps.

Thanks,

Raghu

0 2
0 1.3K

Hopefully this is a simple questions to respond to. Can you do Delegated Authentication for SOAP web service calls. I ask as I am not seeing this work as expected. I have this authentication turned on and enabled in for he CSP Web Application yet I keep getting a "Security Token could not be Authenticated. And a global I was setting to capture some of the available data is not being loaded.

0 1
0 874

I use the HS_IHE_ATNA_Repository.Aggregation table a lot. Someone just referred me to the HS_IHE_ATNA_Repository.Document table, which has an AggregationId column.

I assume that column references the ID column in the .Aggregation table. If so, does this mean that if the same document was requested 1,000 times that there will be 1,000 entries for it in the .Document table? This seems inefficient to me. Why not have one record in the document table and have a DocumentId column in the Aggregation table?

0 7
0 481