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1 #!perl 2 ################################################################################ 3 # WeBWorK Online Homework Delivery System 4 # Copyright © 2000-2003 The WeBWorK Project, http://openwebwork.sf.net/ 5 # $CVSHeader: webwork-modperl/conf/global.conf.dist,v 1.138 2005/09/16 19:08:13 sh002i Exp $ 6 # 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 ################################################################################ 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 $webwork_dir variable is set in the WeBWorK Apache 23 # configuration file (webwork.apache-config) and is available for use here. In 24 # addition, the $courseName variable holds the name of the current course. 25 26 ################################################################################ 27 # Seed variables 28 ################################################################################ 29 30 # Set these variables to correspond to your configuration and preferences. You 31 # will need to restart the webserver to reset the variables in this section. 32 33 # URL of WeBWorK handler. 34 $webwork_url = "/webwork2"; 35 36 # Root directory of PG. 37 $pg_dir = "/opt/pg"; 38 39 # URL and path to htdocs directory. 40 $webwork_htdocs_url = "/webwork2_files"; 41 $webwork_htdocs_dir = "$webwork_dir/htdocs"; 42 43 # URL and path to courses directory. 44 $webwork_courses_url = "/webwork2_course_files"; 45 $webwork_courses_dir = "$webwork_dir/courses"; 46 47 ################################################################################ 48 # Paths to external programs 49 ################################################################################ 50 51 # system utilties 52 $externalPrograms{mkdir} = "/bin/mkdir"; 53 $externalPrograms{mv} = "/bin/mv"; 54 $externalPrograms{mysql} = "/usr/bin/mysql"; 55 $externalPrograms{tar} = "/usr/bin/tar"; 56 57 # equation rendering/hardcopy utiltiies 58 $externalPrograms{latex} = "/usr/bin/latex"; 59 $externalPrograms{pdflatex} = "/usr/bin/pdflatex --shell-escape"; # --shell-escape allows pdflatex to handle .eps files 60 $externalPrograms{dvipng} = "/usr/bin/dvipng"; 61 $externalPrograms{tth} = "/usr/bin/tth"; 62 63 # NetPBM - basic image manipulation utilities 64 # most sites only need to configure $netpbm_prefix. 65 my $netpbm_prefix = "/usr/bin"; 66 $externalPrograms{giftopnm} = "$netpbm_prefix/giftopnm"; 67 $externalPrograms{ppmtopgm} = "$netpbm_prefix/ppmtopgm"; 68 $externalPrograms{pnmtops} = "$netpbm_prefix/pnmtops"; 69 $externalPrograms{pnmtopng} = "$netpbm_prefix/pnmtopng"; 70 $externalPrograms{pngtopnm} = "$netpbm_prefix/pngtopnm"; 71 72 # image conversions utiltiies 73 # the source file is given on stdin, and the output expected on stdout. 74 # 75 # Note on conversions pipelines: 76 # we used to use `pnmdepth 1' instead of ppmtopgm as it creates a 77 # monochrome image (1 bit) rather than a greyscale image (8 bits). 78 # However, this was causing improper display of some sort in PDFs. 79 $externalPrograms{gif2eps} = "$externalPrograms{giftopnm} | $externalPrograms{ppmtopgm} | $externalPrograms{pnmtops} -noturn 2>/dev/null"; 80 $externalPrograms{png2eps} = "$externalPrograms{pngtopnm} | $externalPrograms{ppmtopgm} | $externalPrograms{pnmtops} -noturn 2>/dev/null"; 81 $externalPrograms{gif2png} = "$externalPrograms{giftopnm} | $externalPrograms{pnmtopng}"; 82 83 ################################################################################ 84 # Mail settings 85 ################################################################################ 86 87 # Mail sent by the PG system and the mail merge and feedback modules will be 88 # sent via this SMTP server. 89 $mail{smtpServer} = 'mail.yourschool.edu'; 90 91 # When connecting to the above server, WeBWorK will send this address in the 92 # MAIL FROM command. This has nothing to do with the "From" address on the mail 93 # message. It can really be anything, but some mail servers require it contain 94 # a valid mail domain, or at least be well-formed. 95 $mail{smtpSender} = 'webwork@yourserver.yourschool.edu'; 96 97 # AllowedRecipients defines addresses that the PG system is allowed to send mail 98 # to. this prevents subtle PG exploits. This should be set in course.conf to the 99 # addresses of professors of each course. Sending mail from the PG system (i.e. 100 # questionaires, essay questions) will fail if this is not set somewhere (either 101 # here or in course.conf). 102 $mail{allowedRecipients} = [ 103 #'prof1@yourserver.yourdomain.edu', 104 #'prof2@yourserver.yourdomain.edu', 105 ]; 106 107 # By default, feeback is sent to all users who have permission to 108 # receive_feedback. If this list is non-empty, feedback is also sent to the 109 # addresses specified here. 110 # 111 # * If you want to disable feedback altogether, leave this empty and set 112 # submit_feeback => $nobody in %permissionLevels below. This will cause the 113 # feedback button to go away as well. 114 # 115 # * If you want to send email ONLY to addresses in this list, set 116 # receive_feedback => $nobody in %permissionLevels below. 117 # 118 # It's often useful to set this in the course.conf to change the behavior of 119 # feedback for a specific course. 120 # 121 $mail{feedbackRecipients} = [ 122 #'prof1@yourserver.yourdomain.edu', 123 #'prof2@yourserver.yourdomain.edu', 124 ]; 125 126 # feedbackVerbosity: 127 # 0: send only the feedback comment and context link 128 # 1: as in 0, plus user, set, problem, and PG data 129 # 2: as in 1, plus the problem environment (debugging data) 130 $mail{feedbackVerbosity} = 1; 131 132 # Defines the size of the Mail Merge editor window 133 # FIXME: should this be here? it's UI, not mail 134 # FIXME: replace this with the auto-size method that TWiki uses 135 $mail{editor_window_rows} = 15; 136 $mail{editor_window_columns} = 100; 137 138 ################################################################################ 139 # System-wide locations (directories and URLs) 140 ################################################################################ 141 142 # The root directory, set by webwork_root variable in Apache configuration. 143 $webworkDirs{root} = "$webwork_dir"; 144 145 # Location of system-wide data files. 146 $webworkDirs{DATA} = "$webworkDirs{root}/DATA"; 147 148 # Used for temporary storage of uploaded files. 149 $webworkDirs{uploadCache} = "$webworkDirs{DATA}/uploads"; 150 151 # Location of utility programs. 152 $webworkDirs{bin} = "$webworkDirs{root}/bin"; 153 154 # Location of configuration files, templates, snippets, etc. 155 $webworkDirs{conf} = "$webworkDirs{root}/conf"; 156 157 # Location of course directories. 158 $webworkDirs{courses} = "$webwork_courses_dir" || "$webworkDirs{root}/courses"; 159 160 # Contains log files. 161 $webworkDirs{logs} = "$webworkDirs{root}/logs"; 162 163 # Contains non-web-accessible temporary files, such as TeX working directories. 164 $webworkDirs{tmp} = "$webworkDirs{root}/tmp"; 165 166 # The (absolute) destinations of symbolic links that are OK for the FileManager to follow. 167 # (any subdirectory of these is a valid target for a symbolic link.) 168 # For example: 169 # $webworkDirs{valid_symlinks} = ["$webworkDirs{courses}/modelCourse/templates","/ww2/common/sets"]; 170 $webworkDirs{valid_symlinks} = []; 171 172 ##### The following locations are web-accessible. 173 174 # The root URL (usually /webwork2), set by <Location> in Apache configuration. 175 $webworkURLs{root} = "$webwork_url"; 176 177 # Location of system-wide web-accessible files, such as equation images, and 178 # help files. 179 $webworkDirs{htdocs} = "$webwork_htdocs_dir" || "$webworkDirs{root}/htdocs"; 180 $webworkURLs{htdocs} = "$webwork_htdocs_url"; 181 182 # Location of web-accessible temporary files, such as equation images. 183 $webworkDirs{htdocs_temp} = "$webworkDirs{htdocs}/tmp"; 184 $webworkURLs{htdocs_temp} = "$webworkURLs{htdocs}/tmp"; 185 186 # Location of cached equation images. 187 $webworkDirs{equationCache} = "$webworkDirs{htdocs_temp}/equations"; 188 $webworkURLs{equationCache} = "$webworkURLs{htdocs_temp}/equations"; 189 190 # Contains context-sensitive help files. 191 $webworkDirs{local_help} = "$webworkDirs{htdocs}/helpFiles"; 192 $webworkURLs{local_help} = "$webworkURLs{htdocs}/helpFiles"; 193 194 # URL of general WeBWorK documentation. 195 $webworkURLs{docs} = "http://webhost.math.rochester.edu/webworkdocs/docs"; 196 197 # URL of WeBWorK 1.x profLogin.pl script, for access to old professor pages. 198 # Note that both systems must share a single "courses" directory for this to be 199 # useful. Leave this blank to disable 200 $webworkURLs{oldProf} = "/webwork1/profLogin.pl"; 201 202 # URL of WeBWorK Bugzilla database. 203 $webworkURLs{bugReporter} = "http://bugs.webwork.rochester.edu/"; 204 205 # Location of CSS 206 $webworkURLs{stylesheet} = "$webworkURLs{htdocs}/css/ur.css"; 207 208 # Location of jsMath script, used for the jsMath display mode. 209 $webworkURLs{jsMath} = "$webworkURLs{htdocs}/jsMath/jsMath-ww.js"; 210 211 # Location of ASCIIMathML script, used for the asciimath display mode. 212 $webworkURLs{asciimath} = "$webworkURLs{htdocs}/ASCIIMathML/ASCIIMathML.js"; 213 214 ################################################################################ 215 # Defaults for course-specific locations (directories and URLs) 216 ################################################################################ 217 218 # The root directory of the current course. (The ID of the current course is 219 # available in $courseName.) 220 $courseDirs{root} = "$webworkDirs{courses}/$courseName"; 221 222 # Location of course-specific data files, such as WW1 (GDBM) database files. 223 $courseDirs{DATA} = "$courseDirs{root}/DATA"; 224 225 # Location of authentication data files when using a WW1 (GDBM) database. 226 $courseDirs{auth_DATA} = "$courseDirs{DATA}/.auth"; 227 228 # Location of course HTML files, passed to PG. 229 $courseDirs{html} = "$courseDirs{root}/html"; 230 $courseURLs{html} = "$webwork_courses_url/$courseName"; 231 232 # Location of course image files, passed to PG. 233 $courseDirs{html_images} = "$courseDirs{html}/images"; 234 235 # Location of web-accessible, course-specific temporary files, like static and 236 # dynamically-generated PG graphics. 237 $courseDirs{html_temp} = "$courseDirs{html}/tmp"; 238 $courseURLs{html_temp} = "$courseURLs{html}/tmp"; 239 240 # Location of course-specific logs, like the transaction log. 241 $courseDirs{logs} = "$courseDirs{root}/logs"; 242 243 # Location of scoring files. 244 $courseDirs{scoring} = "$courseDirs{root}/scoring"; 245 246 # Location of PG templates and set definition files. 247 $courseDirs{templates} = "$courseDirs{root}/templates"; 248 249 # Location of course-specific macro files. 250 $courseDirs{macros} = "$courseDirs{templates}/macros"; 251 252 # Location of mail-merge templates. 253 $courseDirs{email} = "$courseDirs{templates}/email"; 254 255 ################################################################################ 256 # System-wide files 257 ################################################################################ 258 259 # Location of this file. 260 $webworkFiles{environment} = "$webworkDirs{conf}/global.conf"; 261 262 # Flat-file database used to protect against MD5 hash collisions. TeX equations 263 # are hashed to determine the name of the image file. There is a tiny chance of 264 # a collision between two TeX strings. This file allows for that. However, this 265 # is slow, so most people chose not to worry about it. Set this to "" if you 266 # don't want to use the equation cache file. 267 $webworkFiles{equationCacheDB} = ""; # "$webworkDirs{DATA}/equationcache"; 268 269 ##### Hardcopy snippets are used in constructing a TeX file for hardcopy output. 270 ##### They should contain TeX code unless otherwise noted. 271 272 # The preamble is the first thing in the TeX file. 273 $webworkFiles{hardcopySnippets}{preamble} = "$webworkDirs{conf}/snippets/hardcopyPreamble.tex"; 274 275 # The setHeader preceeds each set. It is a PG file. 276 $webworkFiles{hardcopySnippets}{setHeader} = "$webworkDirs{conf}/snippets/setHeader.pg"; # hardcopySetHeader.pg", 277 278 # The problem divider goes between problems. 279 $webworkFiles{hardcopySnippets}{problemDivider} = "$webworkDirs{conf}/snippets/hardcopyProblemDivider.tex"; 280 281 # The set footer goes after each set. Is is a PG file. 282 $webworkFiles{hardcopySnippets}{setFooter} = "$webworkDirs{conf}/snippets/hardcopySetFooter.pg"; 283 284 # The set divider goes between sets (in multiset output). 285 $webworkFiles{hardcopySnippets}{setDivider} = "$webworkDirs{conf}/snippets/hardcopySetDivider.tex"; 286 287 # The user divider does between users (in multiuser output). 288 $webworkFiles{hardcopySnippets}{userDivider} = "$webworkDirs{conf}/snippets/hardcopyUserDivider.tex"; 289 290 # The postabmle is the last thing in the TeX file. 291 $webworkFiles{hardcopySnippets}{postamble} = "$webworkDirs{conf}/snippets/hardcopyPostamble.tex"; 292 293 ##### Screen snippets are used when displaying problem sets on the screen. 294 295 # The set header is displayed on the problem set page. It is a PG file. 296 $webworkFiles{screenSnippets}{setHeader} = "$webworkDirs{conf}/snippets/setHeader.pg"; # screenSetHeader.pg" 297 298 # A PG template for creation of new problems. 299 $webworkFiles{screenSnippets}{blankProblem} = "$webworkDirs{conf}/snippets/blankProblem.pg"; # screenSetHeader.pg" 300 301 # A site info "message of the day" file 302 $webworkFiles{site_info} = "$webworkDirs{htdocs}/site_info.txt"; 303 ################################################################################ 304 # Course-specific files 305 ################################################################################ 306 307 # The course configuration file. 308 $courseFiles{environment} = "$courseDirs{root}/course.conf"; 309 310 # File contents are displayed after login, on the problem sets page. Path given 311 # here is relative to the templates directory. 312 $courseFiles{course_info} = "course_info.txt"; 313 314 # File contents are displayed on the login page. Path given here is relative to 315 # the templates directory. 316 $courseFiles{login_info} = "login_info.txt"; 317 318 # Additional library buttons can be added to the Library Browser (SetMaker.pm) 319 # by adding the libraries you want to the following line. For each key=>value 320 # in the list, if a directory (or link to a directory) with name 'key' appears 321 # in the templates directory, then a button with name 'value' will be placed at 322 # the top of the problem browser. (No button will appear if there is no 323 # directory or link with the given name in the templates directory.) For 324 # example, 325 # 326 # $courseFiles{problibs} = {rochester => "Rochester", asu => "ASU"}; 327 # 328 # would add two buttons, one for the Rochester library and one for the ASU 329 # library, provided templates/rochester and templates/asu exists either as 330 # subdirectories or links to other directories. 331 # 332 $courseFiles{problibs} = { 333 # rochesterLibrary => "Rochester", 334 # asuLibrary => "Arizona State", 335 # dcdsLibrary => "Detroit CDS", 336 # dartmouthLibrary => "Dartmouth", 337 # indianaLibrary => "Indiana", 338 # osuLibrary => "Ohio State", 339 # capaLibrary => "CAPA", 340 }; 341 342 ################################################################################ 343 # Database options (WWDBv3) 344 ################################################################################ 345 346 # The four arguments passed to the DBI::connect() method. See the DBI manual for 347 # more information. 348 $wwdbv3_settings{dsn} = "dbi:mysql:wwdbv3"; 349 $wwdbv3_settings{user} = "wwdbv3"; 350 $wwdbv3_settings{pass} = "xyzzy"; 351 $wwdbv3_settings{attr} = {}; 352 353 # WWDBv3 needs a lock file to prevent concurrent database upgrades. The file 354 # will be locked with flock(). 355 $wwdbv3_settings{upgrade_lock} = "$webworkDirs{tmp}/wwdbv3_upgrade.lock"; 356 357 ################################################################################ 358 # Database options (WWDBv2) 359 ################################################################################ 360 361 # Several database are defined in the file conf/database.conf and stored in the 362 # hash %dbLayouts. 363 include "conf/database.conf"; 364 365 # Select the default database layout. This can be overridden in the course.conf 366 # file of a particular course. If you choose "gdbm", WeBWorK will be able to 367 # use courses from WeBWorK 1 without first adding course.conf files to them. 368 # However, the recommended database layout for new courses is "sql_single". This 369 # can be set when creating a course. 370 $dbLayoutName = "sql_single"; # or "gdbm" or "sql" 371 372 # This sets the symbol "dbLayout" as an alias for the selected database layout. 373 *dbLayout = $dbLayouts{$dbLayoutName}; 374 375 ################################################################################ 376 # Problem library options 377 ################################################################################ 378 379 # The directory containing the problem library files. Set to "" if no problem 380 # library is installed. 381 $problemLibrary{root} = ""; 382 383 # Problem Library version 384 # Version 1 is in use. Version 2 will be released soon. 385 $problemLibrary{version} = "1"; 386 387 # The name of the SQL database containing problem metadata 388 $problemLibrary{sourceSQL} = "ProblemLibrary"; 389 390 # The user name to use when connecting to the problem library database 391 $problemLibrary{userSQL} = "webworkRead"; 392 393 # The password to use when connecting to the problem library database 394 $problemLibrary{passwordSQL} = ""; 395 396 ################################################################################ 397 # Logs 398 ################################################################################ 399 400 # FIXME: take logs out of %webworkFiles/%courseFiles and give them their own 401 # top-level hash. 402 403 # Logs data about how long it takes to process problems. (Do not confuse this 404 # with the /other/ timing log which can be set by WeBWorK::Timing and is used 405 # for benchmarking system performance in general. At some point, this timing 406 # mechanism will be deprecated in favor of the WeBWorK::Timing mechanism.) 407 $webworkFiles{logs}{timing} = "$webworkDirs{logs}/timing.log"; 408 409 # Logs courses created via the web-based Course Administration module. 410 $webworkFiles{logs}{hosted_courses} = "$webworkDirs{logs}/hosted_courses.log"; 411 412 # The transaction log contains data from each recorded answer submission. This 413 # is useful if the database becomes corrupted. 414 $webworkFiles{logs}{transaction} = "$courseDirs{logs}/transaction.log"; 415 416 # The answer log stores a history of all users' submitted answers. 417 $courseFiles{logs}{answer_log} = "$courseDirs{logs}/answer_log"; 418 419 # Log logins. 420 $courseFiles{logs}{login_log} = "$courseDirs{logs}/login.log"; 421 422 # Log for almost every click. By default it is the empty string, which 423 # turns this log off. If you want it turned on, we suggest 424 # "$courseDirs{logs}/activity.log" 425 # When turned on, this log can get quite large. 426 $courseFiles{logs}{activity_log} = ''; 427 428 ################################################################################ 429 # Site defaults (FIXME: what other things could be "site defaults"?) 430 ################################################################################ 431 432 # Status strings -- lists valid status values and their names. If your site uses 433 # additional values, add them here. 434 $siteDefaults{status} = { 435 A => "Audit", 436 a => "Audit", 437 audit => "Audit", 438 D => "Drop", 439 d => "Drop", 440 drop => "Drop", 441 withdraw => "Drop", 442 C => "Enrolled", 443 c => "Enrolled", 444 current => "Enrolled", 445 enrolled => "Enrolled", 446 }; 447 448 # Set the default timezone of courses on this server. To get a list of valid 449 # timezones, run: 450 # 451 # perl -MDateTime::TimeZone -e 'print join "\n", DateTime::TimeZone::all_names' 452 # 453 # To get a list of valid timezone "links" (deprecated names), run: 454 # 455 # perl -MDateTime::TimeZone -e 'print join "\n", DateTime::TimeZone::links' 456 # 457 # If left blank, the system timezone will be used. This is usually what you 458 # want. You might want to set this if your server is NOT in the same timezone as 459 # your school. If just a few courses are in a different timezone, set this in 460 # course.conf for the affected courses instead. 461 # 462 $siteDefaults{timezone} = ""; 463 464 # The default_templates_course is used by default to create a new course. 465 # The contents of the templates directory are copied from this course 466 # to the new course being created. 467 $siteDefaults{default_templates_course} ="modelCourse"; 468 469 ################################################################################ 470 # Frontend options 471 ################################################################################ 472 473 %templates = ( 474 system => "$webworkDirs{conf}/templates/ur.template", 475 gateway => "$webworkDirs{conf}/templates/gw.template", 476 ); 477 478 ################################################################################ 479 # Authorization system 480 ################################################################################ 481 482 # This lets you specify a minimum permission level needed to perform certain 483 # actions. For each pair in the hash below, in order to perform the action 484 # described by the key, the user must have a permission level greater than or 485 # equal to the value. 486 487 my $guest = -1; 488 my $student = 0; 489 my $proctor = 2; 490 my $ta = 5; 491 my $professor = 10; 492 my $nobody = undef; 493 494 %permissionLevels = ( 495 login => $guest, 496 report_bugs => $student, 497 submit_feedback => $student, 498 change_password => $student, 499 change_email_address => $student, 500 501 proctor_quiz => $proctor, 502 503 view_multiple_sets => $ta, 504 view_unopened_sets => $ta, 505 view_unpublished_sets => $ta, 506 view_answers => $ta, 507 508 become_student => $professor, 509 access_instructor_tools => $ta, 510 score_sets => $professor, 511 send_mail => $professor, 512 receive_feedback => $ta, 513 514 create_and_delete_problem_sets => $professor, 515 assign_problem_sets => $professor, 516 modify_problem_sets => $professor, 517 modify_student_data => $professor, 518 modify_classlist_files => $professor, 519 modify_set_def_files => $professor, 520 modify_scoring_files => $professor, 521 modify_problem_template_files => $professor, 522 523 create_and_delete_courses => $professor, 524 fix_course_databases => $professor, 525 526 ##### Behavior of the interactive problem processor ##### 527 528 show_correct_answers_before_answer_date => $ta, 529 show_solutions_before_answer_date => $ta, 530 avoid_recording_answers => $ta, 531 # Below this level, old answers are never initially shown 532 can_show_old_answers_by_default => $student, 533 # at this level, we look at showOldAnswers for default value 534 # even after the due date 535 can_always_use_show_old_answers_default => $professor, 536 check_answers_before_open_date => $ta, 537 check_answers_after_open_date_with_attempts => $ta, 538 check_answers_after_open_date_without_attempts => $guest, 539 check_answers_after_due_date => $guest, 540 check_answers_after_answer_date => $guest, 541 record_answers_when_acting_as_student => $nobody, 542 # "record_answers_when_acting_as_student" takes precedence 543 # over the following for professors acting as students: 544 record_answers_before_open_date => $nobody, 545 record_answers_after_open_date_with_attempts => $student, 546 record_answers_after_open_date_without_attempts => $nobody, 547 record_answers_after_due_date => $nobody, 548 record_answers_after_answer_date => $nobody, 549 dont_log_past_answers => $professor, 550 551 ##### Behavior of the Hardcopy Processor ##### 552 553 download_hardcopy_multiuser => $ta, 554 download_hardcopy_multiset => $ta, 555 download_hardcopy_format_tex => $ta, 556 ); 557 558 ################################################################################ 559 # Session options 560 ################################################################################ 561 562 # $sessionKeyTimeout defines seconds of inactivity before a key expires 563 $sessionKeyTimeout = 60*30; 564 565 # $sessionKeyLength defines the length (in characters) of the session key 566 $sessionKeyLength = 40; 567 568 # @sessionKeyChars lists the legal session key characters 569 @sessionKeyChars = ('A'..'Z', 'a'..'z', '0'..'9', '.', '^', '/', '!', '*'); 570 571 # Practice users are users who's names start with $practiceUser 572 # (you can comment this out to remove practice user support) 573 $practiceUserPrefix = "practice"; 574 575 # There is a practice user who can be logged in multiple times. He's 576 # commented out by default, though, so you don't hurt yourself. It is 577 # kindof a backdoor to the practice user system, since he doesn't have a 578 # password. Come to think of it, why do we even have this?! 579 #$debugPracticeUser = "practice666"; 580 581 ################################################################################ 582 # PG subsystem options 583 ################################################################################ 584 585 # List of enabled display modes. Comment out any modes you don't wish to make 586 # available for use. 587 $pg{displayModes} = [ 588 "plainText", # display raw TeX for math expressions 589 "formattedText", # format math expressions using TtH 590 "images", # display math expressions as images generated by dvipng 591 "jsMath", # render TeX math expressions on the client side using jsMath 592 "asciimath", # render TeX math expressions on the client side using ASCIIMathML 593 ]; 594 595 #### Default settings for the PG translator 596 597 # Default display mode. Should be listed above. 598 $pg{options}{displayMode} = "images"; 599 600 # The default grader to use, if a problem doesn't specify. 601 $pg{options}{grader} = "avg_problem_grader"; 602 603 # Fill in answer blanks with the student's last answer by default? 604 $pg{options}{showOldAnswers} = 1; 605 606 # Show correct answers (when allowed) by default? 607 $pg{options}{showCorrectAnswers} = 0; 608 609 # Show hints (when allowed) by default? 610 $pg{options}{showHints} = 0; 611 612 # Show solutions (when allowed) by default? 613 $pg{options}{showSolutions} = 0; 614 615 # Catch translation warnings internally by default? (We no longer need to do 616 # this, since there is a global warnings handler. So this should be off.) 617 $pg{options}{catchWarnings} = 0; 618 619 ##### Currently-selected renderer 620 621 # Only the local renderer is supported in this version. 622 $pg{renderer} = "WeBWorK::PG::Local"; 623 624 # The remote renderer connects to an XML-RPC PG rendering server. 625 #$pg{renderer} = "WeBWorK::PG::Remote"; 626 627 ##### Renderer-dependent options 628 629 # The remote renderer has one option: 630 $pg{renderers}{"WeBWorK::PG::Remote"} = { 631 # The "proxy" server to connect to for remote rendering. 632 proxy => "http://localhost:21000/RenderD", 633 }; 634 635 ##### Settings for various display modes 636 637 # "images" mode has several settings: 638 $pg{displayModeOptions}{images} = { 639 # Determines the method used to align images in output. Can be 640 # "baseline", "absmiddle", or "mysql". 641 dvipng_align => 'baseline', 642 643 # If we choose mysql, we need information on connecting to the 644 # database. Whatever you use here, you have to create the database 645 # and grant read/write priveleges to the user listed here. To create 646 # the database in mysql, as root use: 647 # 648 # CREATE DATABASE DvipngDepths; 649 # USE DvipngDepths; 650 # CREATE TABLE depths (md5 CHAR(33) NOT NULL, depth SMALLINT, PRIMARY KEY (md5)); 651 # GRANT ALL ON DvipngDepths.* TO webworkWrite; 652 # 653 # In the last statement, "webworkWrite" should match the user below. 654 # FIXME: this database can become a table in the 'webwork' database 655 dvipng_depth_db => { 656 dbsource => 'dbi:mysql:DvipngDepths', 657 user => $dbLayouts{sql}->{password}->{params}->{usernameRW}, 658 passwd => $dbLayouts{sql}->{password}->{params}->{passwordRW}, 659 }, 660 }; 661 662 $pg{displayModeOptions}{jsMath} = { 663 reportMissingFonts => 0, # set to 1 to allow the missing font message 664 missingFontMessage => undef, # set to an HTML string to replace the missing font message 665 noImageFonts => 0, # set to 1 if you didn't install the jsMath image fonts 666 }; 667 668 ##### Directories used by PG 669 670 # The root of the PG directory tree (from pg_root in Apache config). 671 $pg{directories}{root} = "$pg_dir"; 672 $pg{directories}{lib} = "$pg{directories}{root}/lib"; 673 $pg{directories}{macros} = "$pg{directories}{root}/macros"; 674 675 # 676 # The macro file search path. Each directory in this list is seached 677 # (in this order) by loadMacros() when it looks for a .pl file. 678 # 679 $pg{directories}{macrosPath} = [ 680 ".", # search the problem file's directory 681 $courseDirs{macros}, 682 $pg{directories}{macros}, 683 ]; 684 685 ##### "Special" PG environment variables. (Stuff that doesn't fit in anywhere else.) 686 687 # Users for whom to print the file name of the PG file being processed. 688 $pg{specialPGEnvironmentVars}{PRINT_FILE_NAMES_FOR} = [ "professor", ]; 689 690 # Locations of CAPA resources. (Only necessary if you need to use converted CAPA 691 # problems.) 692 $pg{specialPGEnvironmentVars}{CAPA_Tools} = "$courseDirs{macros}/CAPA_Tools/", 693 $pg{specialPGEnvironmentVars}{CAPA_MCTools} = "$courseDirs{macros}/CAPA_MCTools/", 694 $pg{specialPGEnvironmentVars}{CAPA_GraphicsDirectory} = "$courseDirs{html}/CAPA_Graphics/", 695 $pg{specialPGEnvironmentVars}{CAPA_Graphics_URL} = "$courseURLs{html}/CAPA_Graphics/", 696 697 # Size in pixels of dynamically-generated images, i.e. graphs. 698 $pg{specialPGEnvironmentVars}{onTheFlyImageSize} = 400, 699 700 # To activate Parser-based versions of num_cmp and fun_cmp, change this 701 # value to 0. 702 $pg{specialPGEnvironmentVars}{useOldAnswerMacros} = 1; 703 704 # Strings to insert at the start and end of the body of a problem 705 # (at beginproblem() and ENDDOCUMENT) in various modes. More display modes 706 # can be added if different behaviours are desired (e.g., HTML_dpng, 707 # HTML_asciimath, etc.). These parts are not used in the Library browser. 708 709 $pg{specialPGEnvironmentVars}{problemPreamble} = { TeX => '', HTML=> '' }; 710 $pg{specialPGEnvironmentVars}{problemPostamble} = { TeX => '', HTML=>'' }; 711 712 # To have the problem body indented and boxed, uncomment: 713 714 # $pg{specialPGEnvironmentVars}{problemPreamble}{HTML} = '<BLOCKQUOTE> 715 # <TABLE BORDER=1 CELLSPACING=1 CELLPADDING=15 BGCOLOR=#E8E8E8><TR><TD>'; 716 # $pg{specialPGEnvironmentVars}{problemPostamble}{HTML} = '</TD></TR></TABLE> 717 # </BLOCKQUOTE>'; 718 719 ##### PG modules to load 720 721 # The first item of each list is the module to load. The remaining items are 722 # additional packages to import. 723 724 ${pg}{modules} = [ 725 [qw(DynaLoader)], 726 [qw(Exporter)], 727 [qw(GD)], 728 729 [qw(AlgParser AlgParserWithImplicitExpand Expr ExprWithImplicitExpand utf8)], 730 [qw(AnswerHash AnswerEvaluator)], 731 [qw(WWPlot)], # required by Circle (and others) 732 [qw(Circle)], 733 [qw(Complex)], 734 [qw(Complex1)], 735 [qw(Distributions)], 736 [qw(Fraction)], 737 [qw(Fun)], 738 [qw(Hermite)], 739 [qw(Label)], 740 [qw(List)], 741 [qw(Match)], 742 [qw(MatrixReal1)], # required by Matrix 743 [qw(Matrix)], 744 [qw(Multiple)], 745 [qw(PGrandom)], 746 [qw(Regression)], 747 [qw(Select)], 748 [qw(Units)], 749 [qw(VectorField)], 750 [qw(Parser Value)], 751 [qw(Parser::Legacy)], 752 [qw(Apache::Log)], 753 ]; 754 755 ##### Answer evaluatior defaults 756 757 $pg{ansEvalDefaults} = { 758 functAbsTolDefault => .001, 759 functLLimitDefault => .0000001, 760 functMaxConstantOfIntegration => 1E8, 761 functNumOfPoints => 3, 762 functRelPercentTolDefault => .1, 763 functULimitDefault => .9999999, 764 functVarDefault => "x", 765 functZeroLevelDefault => 1E-14, 766 functZeroLevelTolDefault => 1E-12, 767 numAbsTolDefault => .001, 768 numFormatDefault => "", 769 numRelPercentTolDefault => .1, 770 numZeroLevelDefault => 1E-14, 771 numZeroLevelTolDefault => 1E-12, 772 useBaseTenLog => 0, 773 defaultDisplayMatrixStyle => "[s]", 774 }; 775 776 ################################################################################ 777 # Compatibility 778 ################################################################################ 779 780 # Define the old names for the various "root" variables. 781 $webworkRoot = $webworkDirs{root}; 782 $webworkURLRoot = $webworkURLs{root}; 783 $pgRoot = $pg{directories}{root};
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