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1 : sh002i 1801 #!perl
2 : sh002i 654 ################################################################################
3 : sh002i 1663 # WeBWorK Online Homework Delivery System
4 :     # Copyright © 2000-2003 The WeBWorK Project, http://openwebwork.sf.net/
5 : sh002i 2439 # $CVSHeader: webwork-modperl/conf/global.conf.dist,v 1.82 2004/07/03 17:21:27 sh002i Exp $
6 : sh002i 1663 #
7 :     # This program is free software; you can redistribute it and/or modify it under
8 :     # the terms of either: (a) the GNU General Public License as published by the
9 :     # Free Software Foundation; either version 2, or (at your option) any later
10 :     # version, or (b) the "Artistic License" which comes with this package.
11 :     #
12 :     # This program is distributed in the hope that it will be useful, but WITHOUT
13 :     # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
14 :     # FOR A PARTICULAR PURPOSE. See either the GNU General Public License or the
15 :     # Artistic License for more details.
16 : sh002i 654 ################################################################################
17 :    
18 :     # This file is used to set up the default WeBWorK course environment for all
19 :     # requests. Values may be overwritten by the course.conf for a specific course.
20 :     # All package variables set in this file are added to the course environment.
21 :     # If you wish to set a variable here but omit it from the course environment,
22 :     # use the "my" keyword. The following variables are available to this file:
23 :     #
24 :     # $webworkRoot directory that contains the WeBWorK distribution
25 : sh002i 2315 # $webworkURLRoot base URL handled by Apache::WeBWorK
26 : sh002i 1051 # $pgRoot directory that contains the PG distribution
27 : sh002i 654 # $courseName name of the course being used
28 :    
29 :     ################################################################################
30 : sh002i 2438 # System-wide locations (directories and URLs)
31 : sh002i 663 ################################################################################
32 : sh002i 654
33 : sh002i 2438 # The root directory, set by webwork_root variable in Apache configuration.
34 :     $webworkDirs{root} = "$webworkRoot";
35 : sh002i 654
36 : sh002i 2438 # Location of system-wide data files.
37 :     $webworkDirs{DATA} = "$webworkDirs{root}/DATA";
38 : sh002i 654
39 : sh002i 2438 # Used for temporary storage of uploaded files.
40 :     $webworkDirs{uploadCache} = "$webworkDirs{DATA}/uploads";
41 : sh002i 654
42 : sh002i 2438 # Location of utility programs.
43 :     $webworkDirs{bin} = "$webworkDirs{root}/bin";
44 :    
45 :     # Location of configuration files, templates, snippets, etc.
46 :     $webworkDirs{conf} = "$webworkDirs{root}/conf";
47 :    
48 :     # Location of course directories.
49 :     $webworkDirs{courses} = "$webworkDirs{root}/courses";
50 :    
51 :     # Contains the WeBWorK libraries. (FIXME: not used)
52 :     #$webworkDirs{lib} = "$webworkDirs{root}/lib";
53 :    
54 :     # Contains log files.
55 :     $webworkDirs{logs} = "$webworkDirs{root}/logs";
56 :    
57 :     # Location of PG macros. (FIXME: not used)
58 :     #$webworkDirs{macros} = "$pgRoot/macros";
59 :    
60 :     # Contains non-web-accessible temporary files, such as TeX working directories.
61 :     $webworkDirs{tmp} = "$webworkDirs{root}/tmp";
62 :    
63 :     ##### The following locations are web-accessible.
64 :    
65 :     # The root URL (usually /webwork2), set by <Location> in Apache configuration.
66 :     $webworkURLs{root} = "$webworkURLRoot";
67 :    
68 :     # Location of system-wide web-accessible files, such as equation images, and
69 :     # help files.
70 :     $webworkDirs{htdocs} = "$webworkDirs{root}/htdocs";
71 :     $webworkURLs{htdocs} = "/webwork2_files";
72 :    
73 :     # The URL of the static WeBWorK home page (FIXME: not used)
74 :     #$webworkURLs{home} = "$webworkURLs{htdocs}/index.html";
75 :    
76 :     # Location of web-accessible temporary files, such as equation images.
77 :     $webworkDirs{htdocs_temp} = "$webworkDirs{htdocs}/tmp";
78 :     $webworkURLs{htdocs_temp} = "$webworkURLs{htdocs}/tmp";
79 :    
80 :     # Location of cached equation images.
81 :     $webworkDirs{equationCache} = "$webworkDirs{htdocs_temp}/equations";
82 :     $webworkURLs{equationCache} = "$webworkURLs{htdocs_temp}/equations";
83 :    
84 :     # Contains context-sensitive help files.
85 :     $webworkDirs{local_help} = "$webworkDirs{htdocs}/helpFiles";
86 :     $webworkURLs{local_help} = "$webworkURLs{htdocs}/helpFiles";
87 :    
88 :     # URL of general WeBWorK documentation.
89 :     $webworkURLs{docs} = "http://webhost.math.rochester.edu/webworkdocs/docs";
90 :    
91 :     # URL of WeBWorK 1.x profLogin.pl script, for access to old professor pages.
92 :     # Note that both systems must share a single "courses" directory for this to be
93 :     # useful. Leave this blank to disable
94 :     $webworkURLs{oldProf} = "/webwork1/profLogin.pl";
95 :    
96 :     # URL of WeBWorK Bugzilla database.
97 :     $webworkURLs{bugReporter} = "http://bugs.webwork.rochester.edu/enter_bug.cgi?product=WeBWorK%20mod_perl";
98 :    
99 :     # Location of jsMath script, used for the jsMath display mode.
100 :     $webworkURLs{jsMath} = "$webworkURLs{root}/jsMath/jsMath.js";
101 :    
102 :     # Location of ASCIIMathML script, used for the asciimath display mode.
103 :     $webworkURLs{asciimath} = "$webworkURLs{root}/ASCIIMathML/ASCIIMathML.js";
104 :    
105 : sh002i 663 ################################################################################
106 : sh002i 2438 # Defaults for course-specific locations (directories and URLs)
107 : sh002i 663 ################################################################################
108 :    
109 : sh002i 2438 # The root directory of the current course. (The ID of the current course is
110 :     # available in $courseName.)
111 :     $courseDirs{root} = "$webworkDirs{courses}/$courseName";
112 : sh002i 663
113 : sh002i 2438 # Location of course-specific data files, such as WW1 (GDBM) database files.
114 :     $courseDirs{DATA} = "$courseDirs{root}/DATA";
115 : sh002i 663
116 : sh002i 2438 # Location of authentication data files when using a WW1 (GDBM) database.
117 :     $courseDirs{auth_DATA} = "$courseDirs{DATA}/.auth";
118 :    
119 :     # Location of course HTML files, passed to PG.
120 :     $courseDirs{html} = "$courseDirs{root}/html";
121 :     $courseURLs{html} = "/webwork2_course_files/$courseName";
122 :     #$courseURLs{root} = $courseURLs{html}; # FIXME: not used
123 :    
124 :     # Location of course image files, passed to PG.
125 :     $courseDirs{html_images} = "$courseDirs{html}/images";
126 :    
127 :     # Location of web-accessible, course-specific temporary files, like static and
128 :     # dynamically-generated PG graphics.
129 :     $courseDirs{html_temp} = "$courseDirs{html}/tmp";
130 :     $courseURLs{html_temp} = "$courseURLs{html}/tmp";
131 :    
132 :     # Location of course-specific logs, like the transaction log.
133 :     $courseDirs{logs} = "$courseDirs{root}/logs";
134 :    
135 :     # Location of scoring files.
136 :     $courseDirs{scoring} = "$courseDirs{root}/scoring";
137 :    
138 :     # Location of PG templates and set definition files.
139 :     $courseDirs{templates} = "$courseDirs{root}/templates";
140 :    
141 :     # Location of course-specific macro files.
142 :     $courseDirs{macros} = "$courseDirs{templates}/macros";
143 :    
144 :     # Location of mail-merge templates.
145 :     $courseDirs{email} = "$courseDirs{templates}/email";
146 :    
147 :     ################################################################################
148 :     # System-wide files
149 :     ################################################################################
150 :    
151 :     # Location of this file.
152 :     $webworkFiles{environment} = "$webworkDirs{conf}/global.conf";
153 :    
154 :     # Flat-file database used to protect against MD5 hash collisions. TeX equations
155 :     # are hashed to determine the name of the image file. There is a tiny chance of
156 :     # a collision between two TeX strings. This file allows for that. However, this
157 :     # is slow, so most people chose not to worry about it. Set this to "" if you
158 :     # don't want to use the equation cache file.
159 :     $webworkFiles{equationCacheDB} = ""; # "$webworkDirs{DATA}/equationcache";
160 :    
161 :     ##### Hardcopy snippets are used in constructing a TeX file for hardcopy output.
162 :     ##### They should contain TeX code unless otherwise noted.
163 :    
164 :     # The preamble is the first thing in the TeX file.
165 :     $webworkFiles{hardcopySnippets}{preamble} = "$webworkDirs{conf}/snippets/hardcopyPreamble.tex";
166 :    
167 :     # The setHeader preceeds each set. It is a PG file.
168 :     $webworkFiles{hardcopySnippets}{setHeader} = "$webworkDirs{conf}/snippets/setHeader.pg";
169 :    
170 :     # The problem divider goes between problems.
171 :     $webworkFiles{hardcopySnippets}{problemDivider} = "$webworkDirs{conf}/snippets/hardcopyProblemDivider.tex";
172 :    
173 :     # The set footer goes after each set. Is is a PG file.
174 :     $webworkFiles{hardcopySnippets}{setFooter} = "$webworkDirs{conf}/snippets/hardcopySetFooter.pg";
175 :    
176 :     # The set divider goes between sets (in multiset output).
177 :     $webworkFiles{hardcopySnippets}{setDivider} = "$webworkDirs{conf}/snippets/hardcopySetDivider.tex";
178 :    
179 :     # The user divider does between users (in multiuser output).
180 :     $webworkFiles{hardcopySnippets}{userDivider} = "$webworkDirs{conf}/snippets/hardcopyUserDivider.tex";
181 :    
182 :     # The postabmle is the last thing in the TeX file.
183 :     $webworkFiles{hardcopySnippets}{postamble} = "$webworkDirs{conf}/snippets/hardcopyPostamble.tex";
184 :    
185 :     ##### Screen snippets are used when displaying problem sets on the screen.
186 :    
187 :     # The set header is displayed on the problem set page. It is a PG file.
188 :     $webworkFiles{screenSnippets}{setHeader} = "$webworkDirs{conf}/snippets/setHeader.pg";
189 :    
190 :     ################################################################################
191 :     # Course-specific files
192 :     ################################################################################
193 :    
194 :     # The course configuration file.
195 :     $courseFiles{environment} = "$courseDirs{root}/course.conf";
196 :    
197 :     # The message of the day, displayed after login. (FIXME: not used)
198 :     #$courseFiles{motd} = "$courseDirs{templates}/motd.txt";
199 :    
200 :     # File contents are displayed after login, on the problem sets page. Path given
201 :     # here is relative to the templates directory.
202 :     $courseFiles{course_info} = "course_info.txt";
203 :    
204 :     # File contents are displayed on the login page. Path given here is relative to
205 :     # the templates directory.
206 :     $courseFiles{login_info} = "login_info.txt";
207 :    
208 :     # Additional library buttons can be added to the Library Browser (SetMaker.pm)
209 :     # by adding the libraries you want to the following line. For each key=>value
210 :     # in the list, if a directory (or link to a directory) with name 'key' appears
211 :     # in the templates directory, then a button with name 'value' will be placed at
212 :     # the top of the problem browser. (No button will appear if there is no
213 :     # directory or link with the given name in the templates directory.) For
214 :     # example,
215 :     #
216 :     # $courseFiles{problibs} = {rochester => "Rochester", asu => "ASU"};
217 :     #
218 :     # would add two buttons, one for the Rochester library and one for the ASU
219 :     # library, provided templates/rochester and templates/asu exists.
220 :     #
221 : sh002i 2439 $courseFiles{problibs} = {};
222 : dpvc 2431
223 : sh002i 2438 ################################################################################
224 :     # Logs
225 :     ################################################################################
226 : dpvc 2431
227 : sh002i 2438 # FIXME: take logs out of %webworkFiles/%courseFiles and give them their own
228 :     # top-level hash.
229 : sh002i 705
230 : sh002i 2438 # Logs data about how long it takes to process problems. (Do not confuse this
231 :     # with the /other/ timing log which can be set by WeBWorK::Timing and is used
232 :     # for benchmarking system performance in general. At some point, this timing
233 :     # mechanism will be deprecated in favor of the WeBWorK::Timing mechanism.)
234 :     $webworkFiles{logs}{timing} = "$webworkDirs{logs}/timing.log";
235 : sh002i 654
236 : sh002i 2438 # The transaction log contains data from each recorded answer submission. This
237 :     # is useful if the database becomes corrupted.
238 :     $webworkFiles{logs}{transaction} = "$courseDirs{logs}/transaction.log";
239 :    
240 :     # The past answer list stores a history of all users' submitted answers. (FIXME: not used)
241 :     $webworkFiles{logs}{pastAnswerList} = "$courseDirs{logs}/past_answers.log";
242 :    
243 :     # The answer log stores a history of all users' submitted answers.
244 :     $courseFiles{logs}{answer_log} = "$courseDirs{logs}/answer_log";
245 :    
246 : sh002i 654 ################################################################################
247 : sh002i 2438 # Mail settings
248 : sh002i 663 ################################################################################
249 : sh002i 654
250 : sh002i 2438 # Mail sent by the PG system and the mail merge and feedback modules will be
251 :     # sent via this SMTP server.
252 : sh002i 2439 $mail{smtpServer} = 'mail.yourschool.edu';
253 : sh002i 2438
254 :     # When connecting to the above server, WeBWorK will send this address in the
255 :     # MAIL FROM command. This has nothing to do with the "From" address on the mail
256 :     # message. It can really be anything, but some mail servers require it contain
257 :     # a valid mail domain, or at least be well-formed.
258 : sh002i 2439 $mail{smtpSender} = 'webwork@yourserver.yourschool.edu';
259 : sh002i 1801
260 : sh002i 2438 # AllowedRecipients defines addresses that the PG system is allowed to send mail
261 :     # to. this prevents subtle PG exploits. This should be set in course.conf to the
262 :     # addresses of professors of each course. Sending mail from the PG system (i.e.
263 :     # questionaires, essay questions) will fail if this is not set somewhere (either
264 :     # here or in course.conf).
265 : sh002i 2439 $mail{allowedRecipients} = [
266 : sh002i 2438 #'prof1@yourserver.yourdomain.edu',
267 :     #'prof2@yourserver.yourdomain.edu',
268 :     ];
269 : sh002i 1801
270 : sh002i 2438 # If defined, feedbackRecipients overrides the list of recipients for feedback
271 :     # email. It's appropriate to set this in the course.conf for specific courses,
272 :     # but probably not in global.conf. if not defined, mail is sent to all
273 :     # professors and TAs for a given course
274 : sh002i 2439 $mail{feedbackRecipients} = [
275 : sh002i 2438 #'prof1@yourserver.yourdomain.edu',
276 :     #'prof2@yourserver.yourdomain.edu',
277 :     ];
278 : sh002i 1801
279 : sh002i 2438 # feedbackVerbosity:
280 :     # 0: send only the feedback comment and context link
281 :     # 1: as in 0, plus user, set, problem, and PG data
282 :     # 2: as in 1, plus the problem environment (debugging data)
283 : sh002i 2439 $mail{feedbackVerbosity} = 1;
284 : sh002i 1801
285 : sh002i 2438 # Defines the size of the Mail Merge editor window
286 :     # FIXME: should this be here? it's UI, not mail
287 :     # FIXME: replace this with the auto-size method that TWiki uses
288 :     $mail{editor_window_rows} = 15;
289 :     $mail{editor_window_columns} = 100;
290 : sh002i 654
291 : sh002i 2438 ################################################################################
292 :     # Paths to external programs
293 :     ################################################################################
294 : sh002i 663
295 : sh002i 2438 $externalPrograms{mkdir} = "/bin/mkdir";
296 :     $externalPrograms{mysql} = "/usr/local/bin/mysql";
297 : toenail 2111
298 : sh002i 2438 $externalPrograms{latex} = "/usr/local/bin/latex";
299 :     $externalPrograms{pdflatex} = "/usr/local/bin/pdflatex";
300 :     $externalPrograms{dvipng} = "/usr/local/bin/dvipng";
301 :     $externalPrograms{tth} = "/usr/local/bin/tth";
302 :    
303 :     # These image conversion utilities are included in the WeBWorK distribution.
304 :     $externalPrograms{gif2eps} = "$webworkDirs{bin}/gif2eps";
305 :     $externalPrograms{png2eps} = "$webworkDirs{bin}/png2eps";
306 :     $externalPrograms{gif2png} = "$webworkDirs{bin}/gif2png";
307 :    
308 : sh002i 663 ################################################################################
309 : sh002i 2438 # Site defaults (FIXME: what other things could be "site defaults"?)
310 :     ################################################################################
311 :    
312 :     # Status strings -- lists valid status values and their names. If your site uses
313 :     # additional values, add them here.
314 :     $siteDefaults{status} = {
315 :     A => "Audit",
316 :     audit => "Audit",
317 :     D => "Drop",
318 :     drop => "Drop",
319 :     withdraw => "Drop",
320 :     C => "Enrolled",
321 :     current => "Enrolled",
322 :     enrolled => "Enrolled",
323 :     };
324 :    
325 :     ################################################################################
326 : sh002i 663 # Frontend options
327 :     ################################################################################
328 :    
329 : sh002i 654 %templates = (
330 : sh002i 1100 system => "$webworkDirs{conf}/templates/ur.template",
331 : sh002i 654 );
332 :    
333 : sh002i 663 ################################################################################
334 : sh002i 1108 # Database options
335 : sh002i 663 ################################################################################
336 :    
337 : sh002i 1696 # Several database are defined in the file conf/database.conf and stored in the
338 :     # hash %dbLayouts.
339 :     include "conf/database.conf";
340 : sh002i 768
341 : sh002i 1696 # Select the default database layout. This can be overridden in the course.conf
342 : sh002i 2438 # file of a particular course. If you choose "gdbm", WeBWorK will be able to
343 :     # use courses from WeBWorK 1 without first adding course.conf files to them.
344 :     # However, the recommended database layout for new courses is "sql". This can
345 :     # be set when creating a course.
346 :     $dbLayoutName = "sql"; # or: "gdbm"
347 : gage 1099
348 : sh002i 2438 # This sets the symbol "dbLayout" as an alias for the selected database layout.
349 : sh002i 2439 *dbLayout = $dbLayouts{$dbLayoutName};
350 : sh002i 1801
351 : sh002i 1108 ################################################################################
352 : sh002i 2146 # Problem library options
353 :     ################################################################################
354 :    
355 : sh002i 2438 # The directory containing the problem library files. Set to "" if no problem
356 :     # library is installed.
357 :     $problemLibrary{root} = "";
358 : sh002i 2146
359 : sh002i 2438 # The name of the SQL database containing problem metadata
360 :     $problemLibrary{sourceSQL} = "ProblemLibrary";
361 :    
362 :     # The user name to use when connecting to the problem library database
363 : sh002i 2439 $problemLibrary{userSQL} = "webworkRead";
364 : sh002i 2438
365 :     # The password to use when connecting to the problem library database
366 :     $problemLibrary{passwordSQL} = "";
367 :    
368 : sh002i 2146 ################################################################################
369 : sh002i 1108 # Authorization system
370 :     ################################################################################
371 :    
372 :     # This lets you specify a minimum permission level needed to perform certain
373 :     # actions. In the current system, >=10 will allow a professor to perform the
374 :     # action, >=5 will allow a TA to, and >=0 will allow a student to perform an
375 :     # action (almost never what you want).
376 : sh002i 2438
377 : sh002i 2439 my $student = 0;
378 :     my $ta = 5;
379 : gage 1021 my $professor = 10;
380 : sh002i 2438
381 : sh002i 654 %permissionLevels = (
382 : sh002i 2381 report_bugs => $student,
383 : toenail 2376 view_multiple_sets => $ta,
384 :     view_unopened_sets => $ta,
385 :     view_unpublished_sets => $ta,
386 :     view_answers => $ta,
387 : sh002i 1108 become_student => $professor,
388 :     access_instructor_tools => $ta,
389 :     create_and_delete_problem_sets => $professor,
390 :     modify_problem_sets => $professor,
391 :     assign_problem_sets => $professor,
392 : malsyned 1210 modify_student_data => $professor,
393 : malsyned 1446 score_sets => $professor,
394 : toenail 2376 send_mail => $professor,
395 : sh002i 1617 modify_classlist_files => $professor,
396 :     modify_set_def_files => $professor,
397 : sh002i 2000 modify_scoring_files => $professor,
398 : gage 2027 create_and_delete_courses => $professor,
399 : sh002i 2309 fix_course_databases => $professor,
400 : sh002i 654 );
401 :    
402 : sh002i 1108 ################################################################################
403 :     # Session options
404 :     ################################################################################
405 :    
406 : sh002i 768 # $sessionKeyTimeout defines seconds of inactivity before a key expires
407 :     $sessionKeyTimeout = 60*30;
408 :    
409 : sh002i 811 # $sessionKeyLength defines the length (in characters) of the session key
410 :     $sessionKeyLength = 40;
411 :    
412 :     # @sessionKeyChars lists the legal session key characters
413 :     @sessionKeyChars = ('A'..'Z', 'a'..'z', '0'..'9', '.', '^', '/', '!', '*');
414 :    
415 : sh002i 768 # Practice users are users who's names start with $practiceUser
416 :     # (you can comment this out to remove practice user support)
417 :     $practiceUserPrefix = "practice";
418 :    
419 :     # There is a practice user who can be logged in multiple times. He's
420 :     # commented out by default, though, so you don't hurt yourself. It is
421 :     # kindof a backdoor to the practice user system, since he doesn't have a
422 :     # password. Come to think of it, why do we even have this?!
423 :     #$debugPracticeUser = "practice666";
424 :    
425 : sh002i 663 ################################################################################
426 : sh002i 2438 # PG subsystem options
427 : sh002i 663 ################################################################################
428 : sh002i 654
429 : sh002i 2438 # List of enabled display modes. Comment out any modes you don't wish to make
430 :     # available for use.
431 :     $pg{displayModes} = [
432 :     "plainText", # display raw TeX for math expressions
433 :     "formattedText", # format math expressions using TtH
434 :     "images", # display math expressions as images generated by dvipng
435 :     "jsMath", # render TeX math expressions on the client side using jsMath
436 :     "asciimath", # render TeX math expressions on the client side using ASCIIMathML
437 :     ];
438 :    
439 :     #### Default settings for the PG translator
440 :    
441 :     # Default display mode. Should be listed above.
442 :     $pg{options}{displayMode} = "images";
443 :    
444 :     # The default grader to use, if a problem doesn't specify.
445 :     $pg{options}{grader} = "avg_problem_grader";
446 :    
447 :     # Fill in answer blanks with the student's last answer by default?
448 :     $pg{options}{showOldAnswers} = 1;
449 :    
450 :     # Show correct answers (when allowed) by default?
451 :     $pg{options}{showCorrectAnswers} = 0;
452 :    
453 :     # Show hints (when allowed) by default?
454 :     $pg{options}{showHints} = 0;
455 :    
456 :     # Show solutions (when allowed) by default?
457 :     $pg{options}{showSolutions} = 0;
458 :    
459 :     # Catch translation warnings internally by default? (We no longer need to do
460 :     # this, since there is a global warnings handler. So this should be off.)
461 :     $pg{options}{catchWarnings} = 0;
462 :    
463 :     ##### Currently-selected renderer
464 :    
465 :     # Only the local renderer is supported in this version.
466 :     $pg{renderer} = "WeBWorK::PG::Local";
467 :    
468 :     # The remote renderer connects to an XML-RPC PG rendering server.
469 :     #$pg{renderer} = "WeBWorK::PG::Remote"'
470 :    
471 :     ##### Renderer-dependent options
472 :    
473 :     # The remote renderer has one option:
474 :     $pg{renderers}{"WeBWorK::PG::Remote"} = {
475 :     # The "proxy" server to connect to for remote rendering.
476 :     proxy => "http://localhost:21000/RenderD",
477 :     };
478 :    
479 :     ##### Settings for various display modes
480 :    
481 :     # "images" mode has several settings:
482 :     $pg{displayModeOptions}{images} = {
483 :     # Determines the method used to align images in output. Can be
484 :     # "baseline", "absmiddle", or "mysql".
485 :     dvipng_align => 'baseline',
486 :    
487 :     # If we choose mysql, we need information on connecting to the
488 :     # database. Whatever you use here, you have to create the database
489 :     # and grant read/write priveleges to the user listed here. To create
490 :     # the database in mysql, as root use:
491 :     #
492 :     # CREATE DATABASE DvipngDepths;
493 :     # USE DvipngDepths;
494 :     # CREATE TABLE depths (md5 CHAR(33) NOT NULL, depth SMALLINT, PRIMARY KEY (md5));
495 :     # GRANT ALL ON DvipngDepths.* TO webworkWrite;
496 :     #
497 :     # In the last statement, "webworkWrite" should match the user below.
498 :     dvipng_depth_db => {
499 :     dbsource => 'dbi:mysql:DvipngDepths',
500 :     user => $dbLayouts{sql}->{password}->{params}->{usernameRW},
501 :     passwd => $dbLayouts{sql}->{password}->{params}->{passwordRW},
502 : sh002i 2192 },
503 : sh002i 2438 };
504 : jj 2413
505 : sh002i 2438 ##### Directories used by PG
506 : jj 2413
507 : sh002i 2438 # The root of the PG directory tree (from pg_root in Apache config).
508 :     $pg{directories}{root} = "$pgRoot";
509 :     $pg{directories}{lib} = "$pg{directories}{root}/lib";
510 :     $pg{directories}{macros} = "$pg{directories}{root}/macros";
511 : jj 2417
512 : sh002i 2438 ##### "Special" PG environment variables. (Stuff that doesn't fit in anywhere else.)
513 : jj 2417
514 : sh002i 2438 # Users for whom to print the file name of the PG file being processed.
515 :     $pg{specialPGEnvironmentVars}{PRINT_FILE_NAMES_FOR} = [ "professor", ];
516 : jj 2417
517 : sh002i 2438 # Locations of CAPA resources. (Only necessary if you need to use converted CAPA
518 :     # problems.)
519 :     $pg{specialPGEnvironmentVars}{CAPA_Tools} = "$courseDirs{macros}/CAPA_Tools/",
520 :     $pg{specialPGEnvironmentVars}{CAPA_MCTools} = "$courseDirs{macros}/CAPA_MCTools/",
521 :     $pg{specialPGEnvironmentVars}{CAPA_GraphicsDirectory} = "$courseDirs{html}/CAPA_Graphics/",
522 :     $pg{specialPGEnvironmentVars}{CAPA_Graphics_URL} = "$courseURLs{html}/CAPA_Graphics/",
523 :    
524 :     # Size in pixels of dynamically-generated images, i.e. graphs.
525 :     $pg{specialPGEnvironmentVars}{onTheFlyImageSize} = 400,
526 :    
527 :     ##### PG modules to load
528 :    
529 :     # The first item of each list is the module to load. The remaining items are
530 :     # additional packages to import.
531 :    
532 :     ${pg}{modules} = [
533 :     [qw(DynaLoader)],
534 :     [qw(Exporter)],
535 :     [qw(GD)],
536 :    
537 :     [qw(AlgParser AlgParserWithImplicitExpand Expr ExprWithImplicitExpand)],
538 :     [qw(AnswerHash AnswerEvaluator)],
539 :     [qw(WWPlot)], # required by Circle (and others)
540 :     [qw(Circle)],
541 :     [qw(Complex)],
542 :     [qw(Complex1)],
543 :     [qw(Distributions)],
544 :     [qw(Fraction)],
545 :     [qw(Fun)],
546 :     [qw(Hermite)],
547 :     [qw(Label)],
548 :     [qw(List)],
549 :     [qw(Match)],
550 :     [qw(MatrixReal1)], # required by Matrix
551 :     [qw(Matrix)],
552 :     [qw(Multiple)],
553 :     [qw(PGrandom)],
554 :     [qw(Regression)],
555 :     [qw(Select)],
556 :     [qw(Units)],
557 :     [qw(VectorField)],
558 :     ];
559 :    
560 :     ##### Answer evaluatior defaults
561 :    
562 :     $pg{ansEvalDefaults} = {
563 :     functAbsTolDefault => .001,
564 :     functLLimitDefault => .0000001,
565 :     functMaxConstantOfIntegration => 1E8,
566 :     functNumOfPoints => 3,
567 :     functRelPercentTolDefault => .1,
568 :     functULimitDefault => .9999999,
569 :     functVarDefault => "x",
570 :     functZeroLevelDefault => 1E-14,
571 :     functZeroLevelTolDefault => 1E-12,
572 :     numAbsTolDefault => .001,
573 :     numFormatDefault => "",
574 :     numRelPercentTolDefault => .1,
575 :     numZeroLevelDefault => 1E-14,
576 :     numZeroLevelTolDefault => 1E-12,
577 :     useBaseTenLog => 0,
578 :     defaultDisplayMatrixStyle => "[s]",
579 :     };

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