Changeset - 775e75832d2e
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Nathan Brink (binki) - 14 years ago 2011-04-09 16:07:12
ohnobinki@ohnopublishing.net
Support multiple section meetings for school_id=calvin. I was warned about this by Tom Graham but I never listened ;-). Fixes bug 109.
2 files changed with 123 insertions and 33 deletions:
inc/school.crawl.inc
1
1
school.d/calvin.crawl.inc
122
32
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inc/school.crawl.inc
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@@ -240,7 +240,7 @@ function school_crawl_meeting_type($meet
 
  if (empty($meeting_type))
 
    $meeting_type = 'lecture';
 

			




	
	
	
		
 
  $meeting_type = strtolower($meeting_type);

			




	
	
	
		
 
  $meeting_type = strtolower(trim($meeting_type));

			




	
	
	
		
 
  if (!empty($meeting_type_maps[$meeting_type]))

			




	
	
	
		
 
    $meeting_type = $meeting_type_maps[$meeting_type];

			




	
	
	
		
 
  elseif (!empty($meeting_type_maps[substr($meeting_type, 0, 3)]))

			




        

    


    
    

    

        

                

                    school.d/calvin.crawl.inc
                

                

                  
                      
                        

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@@ -49,28 +49,8 @@ function calvin_crawl(array &$semesters,

			




	
	
	
		
 

			




	
	
	
		
 
  $cookies = array();

			




	
	
	
		
 

			




	
	
	
		
 
  $baseuri = 'https://kvdata.calvin.edu/walive/WebAdvisor?CONSTITUENCY=WBST&type=P&pid=ST-WESTS12A&LASTTOKEN=NULL';

			




	
	
	
		
 

			




	
	
	
		
 
  $token_uri = $baseuri . '&TOKENIDX=NULL';

			




	
	
	
		
 
  $token_html = calvin_crawl_noscript_filter(school_crawl_geturi($token_uri, $cookies, $school_crawl_log));

			




	
	
	
		
 
  if (!preg_match('/setWindowHTML\(\'\', \'([0-9]+)\'\);/', $token_html, $matches))

			




	
	
	
		
 
    {

			




	
	
	
		
 
      school_crawl_logf($school_crawl_log, 1, "Could not steal the token: crawling failed.");

			




	
	
	
		
 
      return 1;

			




	
	
	
		
 
    }

			




	
	
	
		
 
  $token = $matches[1];

			




	
	
	
		
 

			




	
	
	
		
 
  school_crawl_logf($school_crawl_log, 7, "token: %s.", $token);

			




	
	
	
		
 
  school_crawl_logf($school_crawl_log, 7, "");

			




	
	
	
		
 

			




	
	
	
		
 
  /*

			




	
	
	
		
 
   * here we have arrived at the main webadvisor screen which lists the

			




	
	
	
		
 
   * search form. From here, we can get a list of all of the departments

			




	
	
	
		
 
   * that Calvin College has and then know enough to query each

			




	
	
	
		
 
   * individual department for courses.

			




	
	
	
		
 
   */

			




	
	
	
		
 
  $uri = $baseuri . '&TOKENIDX=' . $token;

			




	
	
	
		
 
  $departments_html = calvin_crawl_noscript_filter(school_crawl_geturi($uri, $cookies, $school_crawl_log));

			




	
	
	
		
 
  $uri = 'https://kvdata.calvin.edu/walive/WebAdvisor?CONSTITUENCY=WBST&type=P&pid=ST-WESTS12A&LASTTOKEN=NULL';

			




	
	
	
		
 
  $departments_html = calvin_crawl_geturi($uri, $cookies, $school_crawl_log);

			




	
	
	
		
 

			




	
	
	
		
 
  $departments_dom = new DOMDocument();

			




	
	
	
		
 
  $departments_dom->loadHTML($departments_html);

			




	
	
		
 
@@ -253,10 +233,10 @@ function calvin_crawl(array &$semesters,

			




	
	
	
		
 
	  /* either 'Open' (or 'Closed'?) */

			




	
	
	
		
 
	  $openness = dom_input_value($results_dom, 'LIST.VAR1_' . $list_row);

			




	
	
	
		
 
	  $sec_short_title = dom_id_content($results_dom, 'SEC_SHORT_TITLE_' . $list_row);

			




	
	
	
		
 
	  $sec_meeting_info = dom_id_content($results_dom, 'SEC_MEETING_INFO_' . $list_row);

			




	
	
	
		
 
	  $sec_meetings_info = dom_id_content($results_dom, 'SEC_MEETING_INFO_' . $list_row);

			




	
	
	
		
 

			




	
	
	
		
 
	  /* check if we're done with this particular page */

			




	
	
	
		
 
	  if (!strlen($openness) && !strlen($sec_short_title) && !strlen($sec_meeting_info))

			




	
	
	
		
 
	  if (!strlen($openness) && !strlen($sec_short_title) && !strlen($sec_meetings_info))

			




	
	
	
		
 
	    {

			




	
	
	
		
 
	      $list_done = TRUE;

			




	
	
	
		
 
	      break;

			




	
	
		
 
@@ -269,6 +249,7 @@ function calvin_crawl(array &$semesters,

			




	
	
	
		
 
	  $faculty_name = dom_input_value($results_dom, 'SEC.FACULTY.INFO_' . $list_row);

			




	
	
	
		
 
	  $credits = dom_input_value($results_dom, 'SEC.MIN.CRED_' . $list_row); /* or id="SEC_FACULTY_INFO_$list_row" */

			




	
	
	
		
 
	  $comment = dom_id_content($results_dom, 'SEC_COMMENTS_' . $list_row); /* or name="SEC.COMMENTS_$list_row" */

			




	
	
	
		
 
	  $short_title_onclick = $results_dom->getElementById('SEC_SHORT_TITLE_' . $list_row)->getAttribute('onclick');

			




	
	
	
		
 

			




	
	
	
		
 
	  /* parse */

			




	
	
	
		
 
	  $section_id = Section::parse($sec_short_title);

			




	
	
		
 
@@ -283,7 +264,7 @@ function calvin_crawl(array &$semesters,

			




	
	
	
		
 
	  school_crawl_logf($school_crawl_log, 10, "");

			




	
	
	
		
 
	  school_crawl_logf($school_crawl_log, 10, implode('-', $section_id) . ': ' . $sec_short_title);

			




	
	
	
		
 
	  school_crawl_logf($school_crawl_log, 10, $openness);

			




	
	
	
		
 
	  school_crawl_logf($school_crawl_log, 10, $sec_meeting_info);

			




	
	
	
		
 
	  school_crawl_logf($school_crawl_log, 10, $sec_meetings_info);

			




	
	
	
		
 
	  school_crawl_logf($school_crawl_log, 10, $faculty_name);

			




	
	
	
		
 
	  school_crawl_logf($school_crawl_log, 10, $credits);

			




	
	
	
		
 
	  school_crawl_logf($school_crawl_log, 10, $comment);

			




	
	
		
 
@@ -304,8 +285,22 @@ function calvin_crawl(array &$semesters,

			




	
	
	
		
 
	   *

			




	
	
	
		
 
	   * '01/31/2011-05/12/2011 Music Ensemble Monday, Wednesday, Thursday, Friday 03:30PM - 04:20PM, Covenant Fine Arts Center, Room 135'

			




	
	
	
		
 
	   *

			




	
	
	
		
 
	   * OR, per

			




	
	
	
		
 
	   * https://protofusion.org/bugzilla/show_bug.cgi?id=109 , we

			




	
	
	
		
 
	   * must parse the following on the main listing page and

			




	
	
	
		
 
	   * then parse more on the ``course details'' page:

			




	
	
	
		
 
	   *

			




	
	
	
		
 
	   * '09/06/2011-12/16/2011 Lecture Tuesday, Wednesday, Friday 12:30PM - 01:20PM, Science Building, Room 276 (more)...'

			




	
	
	
		
 
	   *

			




	
	
	
		
 
	   * The more on the ``course details'' page:

			




	
	
	
		
 
	   *

			




	
	
	
		
 
	   * '09/06/2011-12/16/2011 Lecture Tuesday, Wednesday, Friday 12:30PM - 01:20PM, Science Building, Room 276 09/06/2011-12/16/2011 Lecture Thursday 10:30AM - 12:20PM, Science Building, Room 276'

			




	
	
	
		
 
	   *

			




	
	
	
		
 
	   * Looks like in this last case parsing from right-to-left

			




	
	
	
		
 
	   * will be best.

			




	
	
	
		
 
	   *

			




	
	
	
		
 
	   * In the second case.... we'll just ignore the section. In

			




	
	
	
		
 
	   * the last case, we have to be careful about parsing out

			




	
	
	
		
 
	   * the third case, we have to be careful about parsing out

			




	
	
	
		
 
	   * Monday.

			




	
	
	
		
 
	   *

			




	
	
	
		
 
	   * At this point, we don't parse most tokens. We group them

			




	
	
		
 
@@ -314,18 +309,57 @@ function calvin_crawl(array &$semesters,

			




	
	
	
		
 
	   * the list of days of week the section meets, the start

			




	
	
	
		
 
	   * time, the end time, and then the meeting location.

			




	
	
	
		
 
	   */

			




	
	
	
		
 
	  if (strpos($sec_meeting_info, 'Times to be Announced') !== FALSE

			




	
	
	
		
 
	      || strpos($sec_meeting_info, 'Days to be Announced') !== FALSE)

			




	
	
	
		
 
	  if (strpos($sec_meetings_info, 'Times to be Announced') !== FALSE

			




	
	
	
		
 
	      || strpos($sec_meetings_info, 'Days to be Announced') !== FALSE)

			




	
	
	
		
 
	    {

			




	
	
	
		
 
	      school_crawl_logf($school_crawl_log, 8, 'Skipping class because of incomplete meeting time information: '

			




	
	
	
		
 
				. implode('-', $section_id) . ' has meeting info of `'

			




	
	
	
		
 
				. $sec_meeting_info . '\'');

			




	
	
	
		
 
				. $sec_meetings_info . '\'');

			




	
	
	
		
 
	      $skipped_sections['incomplete meeting info'] ++;

			




	
	
	
		
 
	      /* Still add to have less confusing autocomplete */

			




	
	
	
		
 
	      calvin_crawl_course_add($semester, $section_id['department'], $section_id['course'], $title);

			




	
	
	
		
 
	      continue;

			




	
	
	
		
 
	    }

			




	
	
	
		
 

			




	
	
	
		
 
	  /*

			




	
	
	
		
 
	   * Check whether or not we have to pursue details on the

			




	
	
	
		
 
	   * ``course detail page''. If we do, we might as well just

			




	
	
	
		
 
	   * parse the line of information available there instead of

			




	
	
	
		
 
	   * the same from the main listing page.

			




	
	
	
		
 
	   */

			




	
	
	
		
 
	  if (preg_match('; \\(more\\)...$;', $sec_meetings_info)

			




	
	
	
		
 
	      && preg_match(';^javascript:window\\.open\\(\'(.*?[^\\\\])\',;', $short_title_onclick, $short_title_onclick_matches))

			




	
	
	
		
 
	    {

			




	
	
	
		
 
	      $more_details_url = $short_title_onclick_matches[1];

			




	
	
	
		
 
	      $more_details_uri = strstr($uri, '?', TRUE) . $more_details_url;

			




	
	
	
		
 

			




	
	
	
		
 
	      school_crawl_logf($school_crawl_log, 8, 'Fetching extra course information page for %s-%s-%s from %s.',

			




	
	
	
		
 
				$section_id['department'], $section_id['course'], $section_id['section'],

			




	
	
	
		
 
				$more_details_uri);

			




	
	
	
		
 
	      $more_details_html = calvin_crawl_geturi($more_details_uri, $cookies, $school_crawl_log);

			




	
	
	
		
 
	      $more_details_dom = new DOMDocument();

			




	
	
	
		
 
	      $more_details_dom->loadHTML($more_details_html);

			




	
	
	
		
 

			




	
	
	
		
 
	      /* Hopefully 'LIST_VAR12_1' is pretty constant... */

			




	
	
	
		
 
	      foreach ($more_details_dom->getElementById('LIST_VAR12_1')->childNodes as $more_details_child)

			




	
	
	
		
 
		{

			




	
	
	
		
 
		  if ($more_details_child->nodeType != XML_TEXT_NODE)

			




	
	
	
		
 
		    continue;

			




	
	
	
		
 
		  $sec_meetings_info = $more_details_child->wholeText;

			




	
	
	
		
 
		  break;

			




	
	
	
		
 
		}

			




	
	
	
		
 
	      school_crawl_log($school_crawl_log, 8, "Result of fetching additional meeting information on next line(s):\n%s",

			




	
	
	
		
 
			       $sec_meetings_info);

			




	
	
	
		
 
	    }

			




	
	
	
		
 

			




	
	
	
		
 
	  /*

			




	
	
	
		
 
	   * If we have a course with multiple section_meetings, then

			




	
	
	
		
 
	   * $sec_meetings_info is split into each meeting by a

			




	
	
	
		
 
	   * "\n"

			




	
	
	
		
 
	   */

			




	
	
	
		
 

			




	
	
	
		
 
	  foreach (explode("\n", $sec_meetings_info) as $sec_meeting_info)

			




	
	
	
		
 
	    {

			




	
	
	
		
 
	  if (!preg_match(';^([0-9]{2}/[0-9]{2}/[0-9]{4})-([0-9]{2}/[0-9]{2}/[0-9]{4}) (([^ ,]+ )+)([^0-9]+) ([^ ]+) - ([^ ]+), (.*)$;', $sec_meeting_info, $meeting_info_matches))

			




	
	
	
		
 
	    {

			




	
	
	
		
 
	      school_crawl_logf($school_crawl_log, 8, 'Unable to parse calvin section meeting info string into start/end/days information for '

			




	
	
		
 
@@ -341,7 +375,7 @@ function calvin_crawl(array &$semesters,

			




	
	
	
		
 
	  $date_start = $meeting_info_matches[1];

			




	
	
	
		
 
	  $date_end = $meeting_info_matches[2];

			




	
	
	
		
 
	  /* e.g., 'Lecture', 'Practicum' */

			




	
	
	
		
 
	  $meeting_type = strtolower(trim($meeting_info_matches[3]));

			




	
	
	
		
 
	  $meeting_type = school_crawl_meeting_type($meeting_info_matches[3]);

			




	
	
	
		
 

			




	
	
	
		
 
	  $days = school_crawl_days_format($school_crawl_log, explode(', ', $meeting_info_matches[5]));

			




	
	
	
		
 
	  $time_start = school_crawl_time_format(strptime($meeting_info_matches[6], '%I:%M%p'));

			




	
	
		
 
@@ -351,8 +385,8 @@ function calvin_crawl(array &$semesters,

			




	
	
	
		
 
	  foreach (array('date_start', 'date_end', 'meeting_type', 'days', 'time_start', 'time_end', 'meeting_place', 'meeting_type') as $var)

			




	
	
	
		
 
	    school_crawl_logf($school_crawl_log, 10, "%s:%s", $var, ${$var});

			




	
	
	
		
 

			




	
	
	
		
 
	  $section = new Section($section_id['section'], array(new SectionMeeting($days, $time_start, $time_end, $meeting_place, $meeting_type, $faculty_name)), $synonym);

			




	
	
	
		
 
	  $semester->section_add($section_id['department'], $section_id['course'], $section, $title);

			




	
	
	
		
 
	  $semester->section_meeting_add($section_id['department'], $section_id['course'], $title, $section_id['section'], $synonym,

			




	
	
	
		
 
					 new SectionMeeting($days, $time_start, $time_end, $meeting_place, $meeting_type, $faculty_name));

			




	
	
	
		
 

			




	
	
	
		
 
	  /*

			




	
	
	
		
 
	   * Try to update semester's longetivity stats to help the

			




	
	
		
 
@@ -373,6 +407,7 @@ function calvin_crawl(array &$semesters,

			




	
	
	
		
 
		$semester_end_max = $date_end_time;

			




	
	
	
		
 
	    }

			




	
	
	
		
 
	}

			




	
	
	
		
 
	}

			




	
	
	
		
 

			




	
	
	
		
 
      if (!preg_match(';Page ([0-9]+) of ([0-9]+)\</td\>$;m', $html, $pages))

			




	
	
	
		
 
	{

			




	
	
		
 
@@ -403,6 +438,7 @@ function calvin_crawl(array &$semesters,

			




	
	
	
		
 
    /*

			




	
	
	
		
 
     * Calculate lab-based course dependencies.

			




	
	
	
		
 
     */

			




	
	
	
		
 
    school_crawl_logf($school_crawl_log, 7, 'Adding implicit lab dependencies.');

			




	
	
	
		
 
    foreach ($semester->departments_get() as $department)

			




	
	
	
		
 
      foreach ($semester->department_classes_get($department) as $course)

			




	
	
	
		
 
        {

			




	
	
		
 
@@ -491,6 +527,60 @@ function calvin_crawl_noscript_filter($h

			




	
	
	
		
 

			




	
	
	
		
 
/**

			




	
	
	
		
 
 * \brief

			




	
	
	
		
 
 *   Follows a URL with support for WebAdvisor's silly TOKENIDX=

			




	
	
	
		
 
 *   thing.

			




	
	
	
		
 
 *

			




	
	
	
		
 
 * Automatically filters with calvin_crawl_noscript_filter().

			




	
	
	
		
 
 *

			




	
	
	
		
 
 * \param $uri

			




	
	
	
		
 
 *   The URL.

			




	
	
	
		
 
 * \param $cookies

			




	
	
	
		
 
 *   The cookies (yum!).

			




	
	
	
		
 
 * \param $school_crawl_log

			




	
	
	
		
 
 *   The school_crawl_log.

			




	
	
	
		
 
 */

			




	
	
	
		
 
function calvin_crawl_geturi(&$uri, array &$cookies, &$school_crawl_log)

			




	
	
	
		
 
{

			




	
	
	
		
 
  if (strpos($uri, 'TOKENIDX') === FALSE)

			




	
	
	
		
 
    {

			




	
	
	
		
 
      if (strpos($uri, '?') === FALSE)

			




	
	
	
		
 
	$uri .= '?';

			




	
	
	
		
 
      else

			




	
	
	
		
 
	$uri .= '&';

			




	
	
	
		
 

			




	
	
	
		
 
      /* Starting value. */

			




	
	
	
		
 
      $uri .= 'TOKENIDX=NULL';

			




	
	
	
		
 
    }

			




	
	
	
		
 

			




	
	
	
		
 
  $token_html = calvin_crawl_noscript_filter(school_crawl_geturi($uri, $cookies, $school_crawl_log));

			




	
	
	
		
 

			




	
	
	
		
 
  if (!preg_match('/setWindowHTML\(\'\', \'([0-9]+)\'\);/', $token_html, $matches))

			




	
	
	
		
 
    return $token_html;

			




	
	
	
		
 
$token = $matches[1];

			




	
	
	
		
 

			




	
	
	
		
 
  school_crawl_logf($school_crawl_log, 7, "Using WebAdvisor token: %s.", $token);

			




	
	
	
		
 
  school_crawl_logf($school_crawl_log, 7, "");

			




	
	
	
		
 

			




	
	
	
		
 
  /*

			




	
	
	
		
 
   * setWindowHTML() will first remove the query string parameters

			




	
	
	
		
 
   * 'CLONE' and 'FORCEIDX'. Then it appends TOKENIDX=<token> to the

			




	
	
	
		
 
   * query parameters.

			




	
	
	
		
 
   *

			




	
	
	
		
 
   * Example, where TOKENIDX does not start out as NULL but where a

			




	
	
	
		
 
   * CLONE=Y command is being sent:

			




	
	
	
		
 
   *

			




	
	
	
		
 
   * Input: HTTPS://kvdata.calvin.edu/walive/WebAdvisor?TYPE=P&PID=ST-WESTS13C&CLONE=Y&CLONE_PROCESS=Y&SPAUKQ=708501792841963&CONSTITUENCY=WBST&TOKENIDX=1507971558

			




	
	
	
		
 
   *

			




	
	
	
		
 
   * Result: HTTPS://kvdata.calvin.edu/walive/WebAdvisor?TYPE=P&PID=ST-WESTS13C&CLONE_PROCESS=Y&SPAUKQ=708501792841963&CONSTITUENCY=WBST&TOKENIDX=2281086932

			




	
	
	
		
 
   */

			




	
	
	
		
 
  $uri = preg_replace('/([?&])TOKENIDX=[^&]+/', '$1TOKENIDX=' . $token,

			




	
	
	
		
 
		      preg_replace('/([?&])(CLONE|FORCEIDX)=[^&]+&?/', '$1', $uri));

			




	
	
	
		
 

			




	
	
	
		
 
  return calvin_crawl_noscript_filter(school_crawl_geturi($uri, $cookies, $school_crawl_log));

			




	
	
	
		
 
}

			




	
	
	
		
 

			




	
	
	
		
 
/**

			




	
	
	
		
 
 * \brief

			




	
	
	
		
 
 *   Add a course to a semester if that semester doesn't yet have this

			




	
	
	
		
 
 *   course.

			




	
	
	
		
 
 *

			




        

    



    


    



    



      

      





    
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