88using System . Linq ;
99using System . Text . RegularExpressions ;
1010using System . Web ;
11+ using System . Web . Routing ;
1112using CTCClassSchedule . Properties ;
13+ using Common . Logging ;
1214using Ctc . Ods ;
1315using Ctc . Ods . Data ;
1416using Ctc . Ods . Types ;
1820using System . Configuration ;
1921using System . Text ;
2022using Ctc . Ods . Config ;
23+ using Encoder = Microsoft . Security . Application . Encoder ;
2124
2225namespace CTCClassSchedule . Common
2326{
2427 public static class Helpers
2528 {
26- /// <summary>
29+ private static readonly ILog _log = LogManager . GetCurrentClassLogger ( ) ;
30+
31+ /// <summary>
2732 /// Useful if a helper method works with a timespan and should default to
2833 /// either 12:00am or 23:59pm (start time/end time).
2934 /// </summary>
@@ -266,7 +271,7 @@ public static CourseID getCourseIdFromString(string courseId)
266271 ApiSettings _apiSettings = ConfigurationManager . GetSection ( ApiSettings . SectionName ) as ApiSettings ;
267272 string commonCourseChar = _apiSettings . RegexPatterns . CommonCourseChar ;
268273
269- return new CourseID ( subject . Replace ( commonCourseChar , string . Empty ) , courseNumber , subject . Contains ( commonCourseChar ) ) ;
274+ return new CourseID ( subject . Replace ( commonCourseChar , String . Empty ) , courseNumber , subject . Contains ( commonCourseChar ) ) ;
270275 }
271276
272277 /// <summary>
@@ -430,7 +435,7 @@ static public IDictionary<string, object> getLinkParams(HttpRequestBase httpRequ
430435 {
431436 string value = httpRequest . QueryString . AllKeys . Contains ( key ) ? httpRequest . QueryString [ key ] : httpRequest . Form [ key ] ;
432437
433- if ( ! string . IsNullOrWhiteSpace ( value ) )
438+ if ( ! String . IsNullOrWhiteSpace ( value ) )
434439 {
435440 if ( linkParams . ContainsKey ( key ) )
436441 {
@@ -663,7 +668,7 @@ public static IList<SectionsBlock> GroupSectionsIntoBlocks(IList<SectionWithSeat
663668 IList < SectionWithSeats > remainingSections = nonLinkedSections . Skip ( processedCount ) . ToList ( ) ;
664669 SectionWithSeats firstSection = remainingSections . First ( ) ;
665670 // TODO: Replace BuildCourseID() with this logic - and pull in CommonCourceChar from .config
666- string blockCourseID = string . Format ( "{0}{1} {2}" , firstSection . CourseSubject , firstSection . IsCommonCourse ? "&" : string . Empty , firstSection . CourseNumber ) ;
671+ string blockCourseID = String . Format ( "{0}{1} {2}" , firstSection . CourseSubject , firstSection . IsCommonCourse ? "&" : String . Empty , firstSection . CourseNumber ) ;
667672
668673 if ( allLinkedSections . Any ( l => l . LinkedTo == firstSection . ID . ItemNumber ) )
669674 {
@@ -933,6 +938,11 @@ static private string getYRQValueForBookstoreURL(YearQuarter yrq)
933938 return String . Concat ( quarter , year ) ;
934939 }
935940
941+ /// <summary>
942+ ///
943+ /// </summary>
944+ /// <param name="linkedSections"></param>
945+ /// <returns></returns>
936946 public static IList < SectionWithSeats > ParseCommonHeadingLinkedSections ( List < SectionWithSeats > linkedSections )
937947 {
938948 string prevCourseID = String . Empty ;
@@ -957,5 +967,103 @@ public static IList<SectionWithSeats> ParseCommonHeadingLinkedSections(List<Sect
957967
958968 return common ;
959969 }
970+
971+ // TODO: Move StripHtml() into CtcApi
972+ /// <summary>
973+ ///
974+ /// </summary>
975+ /// <param name="withHtml"></param>
976+ /// <param name="whitelistPattern"></param>
977+ /// <returns></returns>
978+ public static string StripHtml ( string withHtml , string whitelistPattern = null )
979+ {
980+ string stripped ;
981+ if ( String . IsNullOrWhiteSpace ( whitelistPattern ) )
982+ {
983+ whitelistPattern = ConfigurationManager . AppSettings [ "CMSHtmlParsingAllowedElements" ] ;
984+ }
985+ try
986+ {
987+ string pattern = @"</?(?(?=" + whitelistPattern +
988+ @")notag|[a-zA-Z0-9]+)(?:\s[a-zA-Z0-9\-]+=?(?:(["",']?).*?\1?)?)*\s*/?>" ;
989+ stripped = Regex . Replace ( withHtml , pattern , String . Empty ) ;
990+ }
991+ catch ( Exception ex )
992+ {
993+ stripped = Encoder . HtmlEncode ( withHtml ) ;
994+ _log . Warn ( m => m ( "Unable to remove HTML from string '{0}'\n Returning HTML-encoded string instead.\n {1}" , withHtml , ex ) ) ;
995+ }
996+ return stripped ;
997+ }
998+
999+ /// <summary>
1000+ /// Gets the course outcome information by scraping the Bellevue College
1001+ /// course outcomes website
1002+ /// </summary>
1003+ public static dynamic GetCourseOutcome ( ICourseID courseId )
1004+ {
1005+ string fullCourseID = BuildCourseID ( courseId . Number , courseId . Subject . TrimEnd ( ) , courseId . IsCommonCourse ) ;
1006+ string courseOutcomes ;
1007+ try
1008+ {
1009+ Service1Client client = new Service1Client ( ) ;
1010+ string rawCourseOutcomes = client . GetCourseOutcome ( fullCourseID ) ;
1011+ if ( rawCourseOutcomes . IndexOf ( "<li>" , StringComparison . OrdinalIgnoreCase ) >= 0 )
1012+ {
1013+ courseOutcomes = StripHtml ( rawCourseOutcomes , "ul|UL|li|LI" ) ;
1014+ }
1015+ else
1016+ {
1017+ courseOutcomes = StripHtml ( rawCourseOutcomes , "" ) ;
1018+ string [ ] outcomeArray = courseOutcomes . Split ( '\n ' ) ;
1019+
1020+ StringBuilder outcomes = new StringBuilder ( "<ul>" ) ;
1021+ foreach ( string outcome in outcomeArray )
1022+ {
1023+ outcomes . AppendFormat ( "<li>{0}</li>" , outcome ) ;
1024+ }
1025+ outcomes . Append ( "</ul>" ) ;
1026+
1027+ courseOutcomes = outcomes . ToString ( ) ;
1028+ }
1029+ }
1030+ catch ( Exception ex )
1031+ {
1032+ // TODO: log exception details
1033+ courseOutcomes = "Error: Cannot find course outcome for this course or cannot connect to the course outcomes webservice." ;
1034+ _log . Warn ( m => m ( "Unable to retrieve course outomes for '{0}'" , fullCourseID ) , ex ) ;
1035+ }
1036+
1037+ return courseOutcomes ;
1038+ }
1039+
1040+ /// <summary>
1041+ /// Allows user to enter "current" in URL in place of quarter
1042+ /// </summary>
1043+ /// <param name="quarter"></param>
1044+ /// <param name="currentQuarter"></param>
1045+ /// <param name="routeData"></param>
1046+ /// <returns></returns>
1047+ public static YearQuarter DetermineRegistrationQuarter ( string quarter , YearQuarter currentQuarter , RouteData routeData )
1048+ {
1049+ YearQuarter yrq ;
1050+ if ( String . IsNullOrWhiteSpace ( quarter ) )
1051+ {
1052+ yrq = null ;
1053+ }
1054+ else
1055+ {
1056+ if ( quarter . ToUpper ( ) == "CURRENT" )
1057+ {
1058+ yrq = currentQuarter ;
1059+ routeData . Values [ "YearQuarter" ] = yrq . FriendlyName . Replace ( " " , string . Empty ) ;
1060+ }
1061+ else
1062+ {
1063+ yrq = YearQuarter . FromFriendlyName ( quarter ) ;
1064+ }
1065+ }
1066+ return yrq ;
1067+ }
9601068 }
9611069}
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