Implementation of Electronic
Reserves on an Apache Server
By
Kelly Vickery
http://www.uky.edu/~kmvick0/Reserves
1
Organization of Ereserves:
• Searchable database:
• Commercial Ereserve Management System.
• Direct access from Integrated Library System.
• Home developed Ereserve System.
• Web page structure:
• Flat web page structure.
• Tiered web page structure.
2
Apache Authentication,
Authorization, & Access Control
• Authentication – who are you?
• Authorization – what may you access?
• Access control – under what conditions?
Apache provides several utilities that
can implement these controls in a
variety of ways. The process involves:
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Apache Utilities
• Authorization file - .htaccess files
– Contains directives that control access to the
directory.
• Password utilities
– htpasswd
– htdigest
– dbmmanage
4
.htaccess Directives
• AuthType Basic/Digest.
• AuthName “Enter
browser prompt text.”
• AuthUserFile path to the
password file.
• AuthGroupFile path to
the group file.
• Require requirement
directives. Examples:
•
•
•
•
•
•
•
AuthDigestFile
AuthDigestGroupFile
AuthDBUserFile
AuthDBGroupFile
Order allow,deny
Allow from IP/domain
Satisfy any/all
– Require valid-user
– Require group students
5
How .htaccess uses htpasswd files
Root directory
Password directory
Password file 1
Password file 2
Password file 3
Course Ereserve 1
.htaccess file
htdocs
directory
Other directories
Reserves directory
Other web directories
Course Ereserve 2
.htaccess file
Course Ereserve 1
.htaccess file
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How .htaccess uses htpasswd files
AuthType Basic
AuthName "Students in History 554."
AuthUserFile /usr/PW/his554.txt
Require valid-user
“usr” directory
“PW” directory
eco101.txt
ant325.txt
his554.txt
“Reserves” directory
History_554 ereserves
.htaccess file
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UK .htaccess example
AuthType Basic
AuthName "Students in Popkin's HON 102 class (Please
contact your instructor for User Name and Password)."
AuthUserFile /usr/www/htdocs/PW/yopohon102.web
Require valid-user
But how do you create the file
pointed to by the “AuthUserFile” directive?
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htpasswd function
• htpasswd [-cmdps] passwordfile username
• htpasswd -b[cmdps] passwordfile username password
• -c Create a new file.
• -n Don't update file; display results on stdout.
• -m Force MD5 encryption of the password.
• -d Force CRYPT encryption of the password (default).
• -p Do not encrypt the password (plaintext).
• -s Force SHA encryption of the password.
• -b Use the password from the command line
rather than prompting for it.
9
dbmmanage function
• dbmmanage – database management
• htdigest – encrypted ID & password
Best to check www.apache.org
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Password prompts
Variations based
on Browsers
Internet Explorer 6.0
Netscape 7.0 & 4.78
Site and Realm are always
Listed.
Realm = AuthName
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Distribution of Ereserves
• Create and serve digital files
• Point to files purchased from Aggregators
12
13
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Direct Links to EbscoHost Articles
Using Persistent Links.
Steps
1. Find desired ereserve article in
EbscoHost.
2. Persistent link is provided in citation.
3. Use this link as the ereserve link.
15
16
Direct Links to Articles
InfoTrac using “InfoMarks”.
1.
2.
3.
4.
5.
Steps
Find desired ereserve article in InfoTrac.
Identify its PURL {everything after
“purl=“.
Place the PURL after “InfoMark” prefix:
http://infotrac.galegroup.com/itw/infomark
/1/1/1/purl=
Use this link as the ereserve link.
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InfoMark example
http://infotrac.galegroup.com/itw/infomark/1/1/1/purl=
rc1_EAIM_0_A8282965&dyn=9!xrn_1_0_A8282965&bkm_9_1?sw_aep={account ID}
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Direct Link to Articles
Ovid (Jump Start)
• http://gateway.ovid.com/ovidweb.cgi?T=JS&PAG
E=fulltext&D=ovft&NEWS=N&AN=00005205200105000-00009
–
–
–
–
–
http://gateway.ovid.com/ovidweb.cgi?T=JS
&PAGE=fulltext (indicates show the full text page)
&D=ovft
(indicates which Ovid database)
&NEWS=N
(indicates skip the news screen)
&N=… (…is where the article accession number is
entered)
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Ovid Jump Start example
http://gateway.ovid.com/ovidweb.cgi?T=JS&PAGE=fulltext&D=ovft&NEWS=N&AN=00005205-200105000-00009
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Direct Links to Articles
Science Direct (etc.) using DOI
• D.O.I. Is a Digital Object Identifier.
• Example:
– doi:10.1016/S0091-2182(98)00062-7
• Used to identify a specific digital object.
• Corporation for National Research
Initiatives (http://www.cnri.reston.va.us):
– C.N.R.I. - CrossRef - HandleSystem - DOI
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CrossRef Members -- sample
• Association of American
Publishers
• Elsevier Science
• International Publishers
Association
• John Wiley & Sons
• McGraw-Hill, Educational
and Professional
Publishing Group
• Springer Verlag
• American Chemical
Society
• Association for
Computing Machinery
• Cambridge University
Press
• Copyright Clearance
Center
• EDP Sciences
• Wolters Kluwer
International Health &
Science
• New England Journal of
Medicine
• Nielsen BookData
• IEEE
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Direct Links to Articles
Science Direct (etc.) using DOI
1.
2.
3.
4.
5.
STEPS
Find desired ereserve article
Identify the DOI number in the article.
Place the DOI number after the central
Handle System prefix:
http://dx.doi.org/
Use this link as the ereserve link.
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Science Direct (DOI) example
http://dx.doi.org/10.1016/S0091-2182(98)00062-7
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UK Ereserve System
Fall 2002
•
•
•
•
•
•
Four different Libraries or units.
Seventeen different curriculums.
Forty-nine courses using ereserves.
Delivering 484 ereserve files.
Server space used 630,885,663 bytes.
15,104 documents delivered in Fall ‘02
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UK Ereserve System
Spring (to March 2003)
•
•
•
•
•
•
Six different Libraries or units.
Twenty-two different curriculums.
Fifty-one courses using ereserves.
Delivering 650 ereserve files.
Server space used 700,818,201 bytes
12,069 in January-February of Spring ‘02
26
Percent increase of usage.
Libraries
(or dept.)
4
6
150%
Courses
49
51
104%
Server
Space
630,885,663
700,818,201
111%
Number of
documents
484
650
134%
Files
Served
15,104
12,069
80%
27
References
• http://www.mville.edu/Administration/staff/Jef
f_Rosedale/
• http://www.cni.org/Hforums/arl-ereserve/
• Managing Electronic Reserves. Jeff
Rosedale, editor. ALA, Chicago. 2002.
• www.uky.edu/Libraries/Reserves
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