Modify Islandora objects on-the-fly using Devel “Execute PHP Code”

Alan Stanley taught me this trick at an Islandora Camp a few years ago, and when trying to remember it this morning I messed up one critical piece. So I’ll post it here so I have something to refer back to when I need to do this again.

The Drupal Devel module includes a menu item for executing arbitrary PHP code on the server. (This is, of course, something you want to set permissions on very tightly because it can seriously wreck havoc on your day if someone uses it to do bad things.) Navigate to /devel/php on your Islandora website (with the Devel module enabled), and you’ll get a nice, big ≶textarea> and an “Execute” button:

How to fix a directory that Git thinks is a submodule

Nuts. I added and committed a directory to my Git repository when the directory itself was another separate Git repository. Now Git thinks it’s some sort of submodule, but it doesn’t know how to deal with it:

$ git submodule update
No submodule mapping found in .gitmodules for path 'blah'

And worse, Git won’t let me remove it:

$ git rm blah
error: the following submodule (or one of its nested submodules)
uses a .git directory:
    blah
(use 'rm -rf' if you really want to remove it including all of its history)

So what to do? This:

$ git rm --cached blah
$ git add blah

In my case I had a situation where there were several Git repositories-inside-a-repository, so I wanted a way to deal with them all:

$ for i in `find . -type d -name .git -print | sed 's#/.git##'`; do 
> echo $i
> rm -rf $i/.git
> git rm --cached $i
> git add $i
> done

(Be careful not to run this find command at the root of your Git repository, of course, or else you will effectively destroy its usefulness as a git repo. )

Idea for an NPR Twitter bot — Tweet me about that story I just heard

So I had an idea for a Twitter bot I would like to see. Occasionally I’ll be listening to a story on NPR and I’ll want to know more about it. Sometimes the host will say something like: “come to npr.org for more information and click on…” Other times it will be because I missed a crucial bit of the story and I’ll want to know more about it. So why not have a Twitter bot that I can call upon to say “Tell me more about that story”:

Embedding Graphics in Jaspersoft Report Files

One of the features of Jaspersoft Reports is the ability to include static graphics — logos, for instance — in the completed reports. These graphic files are normally listed in the JRXML configuration file by reference — meaning that what is stored in the configuration is a file name and not the graphic itself. Most times the configuration file and the ancillary graphics files are uploaded to a JasperReports Server for execution. In the environment that I’m working in, CollectionSpace, the report generator is embedded in the application without the JasperReports Server endpoint. The JRXML files must be compiled into the application, which makes keeping track of the ancillary graphics files somewhat troublesome.

Ideally, I would like to embed the graphics into the JRXML file itself, similar to what is done in with the data URI schema in HTML and CSS files to reduce the connection latency between client and server. This is possible, but the instructions and hints you find out on the internet to do it are out of date or incomplete. The instructions below are correct for Jaspersoft Studio version 6.2.0.

Separating Configuration from Code in CollectionSpace

For the past few months I’ve been working on a project to migrate a museum’s collection registry to CollectionSpace. CollectionSpace is a “free, open-source, web-based software application for the description, management, and dissemination of museum collections information.”1 CollectionSpace is multitenant software — one installation of the software can serve many tenants. The software package’s structure, though, means that the configuration for one tenant is mixed in with the code for all tenants on the server (e.g, the application layer, services layer, and user interface layer configuration are stored deep in the source code tree). This bothers me from a maintainability standpoint. Sure, Git’s richly featured merge functionality helps, but it seems unnecessarily complex to intertwine the two in this way. So I developed a structure that puts a tenant’s configuration in a separate source code repository and a series of procedures to bring the two together at application-build time.

Footnotes

  1. From the answer to the first question of the CollectionSpace frequently asked questions. []

Institution-wide ORCID Adoption Test in U.K. Shows Promise

Via Gary Price’s announcement on InfoDocket comes word of a cost-benefit analysis for the wholesale adoption of ORCID identifiers by eight institutions in the U.K. The report, Institutional ORCID, Implementation and Cost Benefit Analysis Report [PDF], looks at the perspectives of stakeholders, a summary of findings from the pilot institutions, a preliminary cost-benefit analysis, and a 10-page checklist of consideration points for higher education institutions looking to adopt ORCID identifiers in their information systems. The most interesting bits of the executive summary came from the part discussing the findings from the pilot institutions.

What Does it Mean to Have Unlimited Storage in the Cloud?

We’ve seen big announcements recently about unlimited cloud storage offerings for a flat monthly or fee. Dropbox offers it for subscribers to its Business plan. Similarly, Google has unlimited storage for Google Apps for Business customers. In both cases, though, you have to be part of a business group of some sort. Then Microsoft unlimited storage for any subscriber of all Office 365 customers (Home, School, and soon Business) as bundled offering of OneDrive with the Office suite of products. Now comes word today from Amazon of unlimited storage to consumers…no need to be part of a business grouping or have bundled software come with it.

Blocking /xmlrpc.php Scans in the Apache .htaccess File

Someone out there on the internet is repeatedly hitting this blog’s /xmlrpc.php service, probably looking to enumerate the user accounts on the blog as a precursor to a password scan (as described in Huge increase in WordPress xmlrpc.php POST requests at Sysadmins of the North). My access logs look like this:

176.227.196.86 - - [04/Sep/2014:02:18:19 +0000] "POST /xmlrpc.php HTTP/1.0" 200 291 "-" "Mozilla/4.0 (compatible: MSIE 7.0; Windows NT 6.0)"
195.154.136.19 - - [04/Sep/2014:02:18:19 +0000] "POST /xmlrpc.php HTTP/1.0" 200 291 "-" "Mozilla/4.0 (compatible: MSIE 7.0; Windows NT 6.0)"
176.227.196.86 - - [04/Sep/2014:02:18:19 +0000] "POST /xmlrpc.php HTTP/1.0" 200 291 "-" "Mozilla/4.0 (compatible: MSIE 7.0; Windows NT 6.0)"
176.227.196.86 - - [04/Sep/2014:02:18:21 +0000] "POST /xmlrpc.php HTTP/1.0" 200 291 "-" "Mozilla/4.0 (compatible: MSIE 7.0; Windows NT 6.0)"
176.227.196.86 - - [04/Sep/2014:02:18:22 +0000] "POST /xmlrpc.php HTTP/1.0" 200 291 "-" "Mozilla/4.0 (compatible: MSIE 7.0; Windows NT 6.0)"
176.227.196.86 - - [04/Sep/2014:02:18:24 +0000] "POST /xmlrpc.php HTTP/1.0" 200 291 "-" "Mozilla/4.0 (compatible: MSIE 7.0; Windows NT 6.0)"
195.154.136.19 - - [04/Sep/2014:02:18:24 +0000] "POST /xmlrpc.php HTTP/1.0" 200 291 "-" "Mozilla/4.0 (compatible: MSIE 7.0; Windows NT 6.0)"
176.227.196.86 - - [04/Sep/2014:02:18:26 +0000] "POST /xmlrpc.php HTTP/1.0" 200 291 "-" "Mozilla/4.0 (compatible: MSIE 7.0; Windows NT 6.0)"

By itself, this is just annoying — but the real problem is that the PHP stack is getting invoked each time to deal with the request, and at several requests per second from different hosts this was putting quite a load on the server. I decided to fix the problem with a slight variation from what is suggested in the Sysadmins of the North blog post. This addition to the .htaccess file at the root level of my WordPress instance rejects the connection attempt at the Apache level rather than the PHP level:

On questions regarding ISO/DIS 18626, Information and documentation — Interlibrary Loan Transactions

There is a ballot under consideration within the ISO TC 46/SC 4 on InterLibraryLoan Transactions. The ballot description is:

This International Standard specifies the transactions between libraries or libraries and other agencies to handle requests for library items and following exchange of messages. This standard is intended to at first supplement and eventually succeed the existing international ILL standards ISO 10160, ISO 10161-1 and ISO 10161-2, which are based on the outdated open systems interconnection model. The introduction of the draft standard provides some background on the relationship of the new standard to the previous one.

Make Plans to Attend the ResourceSync Post-Conference Tutorial at LITA Forum

ResourceSync LogoAs you are planning your trip to the 2013 LITA Forum in Louisville in mid-November, plan to stay a few hours longer to attend the ResourceSync Tutorial happening after the close of the main conference on Sunday. Herbert van de Sompel will lead this 3-hour session where attendees can learn about how the emerging ResourceSync standard can be used to synchronize web resources between servers. There is no cost to attend the post-conference tutorial, but we would appreciate knowing how many people are coming. Please select the post conference checkbox on the registration form to let us know.