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nutn_course_crawler.rb
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nutn_course_crawler.rb
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##
# 臺南大學
# http://academics.nutn.edu.tw/cos_guide/query_course.aspx
module CourseCrawler::Crawlers
class NutnCourseCrawler < CourseCrawler::Base
PERIODS = {
"1" => 1,
"2" => 2,
"3" => 3,
"4" => 4,
"5" => 5,
"6" => 6,
"7" => 7,
"8" => 8,
"9" => 9,
"A" => 10,
"B" => 11,
"C" => 12,
"D" => 13,
"E" => 14,
"F" => 15,
"G" => 16,
}
def initialize year: nil, term: nil, update_progress: nil, after_each: nil
@year = year
@term = term
@update_progress_proc = update_progress
@after_each_proc = after_each
@query_url = 'http://academics.nutn.edu.tw/cos_guide/query_course.aspx'
end
def courses
@courses = []
r = RestClient.get(@query_url)
doc = Nokogiri::HTML(r)
hidden = Hash[doc.css('input[type="hidden"]').map{|hidden| [hidden[:name], hidden[:value]]}]
# 通識課程
doc = Nokogiri::HTML(post(hidden))
course_temp(doc)
r = RestClient.get(@query_url)
doc = Nokogiri::HTML(r)
hidden = Hash[doc.css('input[type="hidden"]').map{|hidden| [hidden[:name], hidden[:value]]}]
# 大學課程
doc.css('select[name="TabContainer1$TabPanel2$lstcollege1"] option:not(:last-child)').map{|opt| [opt[:value], opt.text]}.each do |col_c, col_n|
doc = Nokogiri::HTML(post(hidden, scriptmanager: "TabContainer1$TabPanel2$UpdatePanel1|TabContainer1$TabPanel2$lstcollege1", clientstate: "1", college1: col_c, eventtarget: "TabContainer1$TabPanel2$lstcollege1", btnQuery: nil))
doc.css('select[name="TabContainer1$TabPanel2$lstDept1"] option').map{|opt| [opt[:value], opt.text]}.each do |dept_c, dept_n|
doc = Nokogiri::HTML(post(hidden, clientstate: "1", college1: col_c, dept1_c: dept_c))
course_temp(doc)
end
end
r = RestClient.get(@query_url)
doc = Nokogiri::HTML(r)
hidden = Hash[doc.css('input[type="hidden"]').map{|hidden| [hidden[:name], hidden[:value]]}]
# 研究所課程
doc.css('select[name="TabContainer1$TabPanel3$lstcollege2"] option:not(:last-child)').map{|opt| [opt[:value], opt.text]}.each do |col_c, col_n|
doc = Nokogiri::HTML(post(hidden, scriptmanager: "TabContainer1$TabPanel3$UpdatePanel2|TabContainer1$TabPanel3$lstcollege2", clientstate: "2", college1: col_c, eventtarget: "TabContainer1$TabPanel3$lstcollege2", btnQuery: nil))
doc.css('select[name="TabContainer1$TabPanel3$lstDept2"] option').map{|opt| [opt[:value], opt.text]}.each do |dept_c, dept_n|
doc = Nokogiri::HTML(post(hidden, clientstate: "2", college1: col_c, dept1_c: dept_c))
course_temp(doc)
end
end
r = RestClient.get(@query_url)
doc = Nokogiri::HTML(r)
hidden = Hash[doc.css('input[type="hidden"]').map{|hidden| [hidden[:name], hidden[:value]]}]
# 其他課程
(1..2).each do |t|
doc = Nokogiri::HTML(post(hidden, clientstate: "3", other: "rbOption4_#{t}"))
course_temp(doc)
end
@courses
end
def post(hidden, scriptmanager: "ScriptManager1|btnQuery", clientstate: "0", college1: "1", dept1_c: "1200", college2: "1", dept2_c: "1204", other: nil, eventtarget: nil, btnQuery: "查詢")
r = RestClient.post(@query_url, hidden.merge({
"ScriptManager1" => scriptmanager,
"TabContainer1_ClientState" => "{\"ActiveTabIndex\":#{clientstate},\"TabState\":[true,true,true,true,true,true]}",
"lstacade_session" => "#{@year - 1911}#{@term}",
"TabContainer1$TabPanel1$rbcom_dn" => "-9",
"TabContainer1$TabPanel1$gCom" => "rbCom1",
"TabContainer1$TabPanel2$lstcollege1" => college1,
"TabContainer1$TabPanel2$lstDept1" => dept1_c,
"TabContainer1$TabPanel2$lstgrade" => "0",
"TabContainer1$TabPanel2$lstchoice" => "-1",
"TabContainer1$TabPanel3$lstcollege2" => college2,
"TabContainer1$TabPanel3$lstDept2" => dept2_c,
"TabContainer1$TabPanel4$Gother" => other,
"TabContainer1$TabPanel5$Gteacher" => "rbTeacher1",
"TabContainer1$TabPanel5$lstCollege3" => "0",
"TabContainer1$TabPanel5$lstDept3" => "06",
"TabContainer1$TabPanel5$lstTeacher" => "06006",
"TabContainer1$TabPanel5$txtTeacher" => "",
"Gweekly" => "rbWeekly1",
"Gsection" => "rbSection1",
"__EVENTTARGET" => eventtarget,
"__ASYNCPOST" => "true",
"btnQuery" => btnQuery,
}), {"User-Agent" => "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Ubuntu Chromium/44.0.2403.89 Chrome/44.0.2403.89 Safari/537.36"})
end
def course_temp(doc)
doc.css('tr:nth-child(n+2)').map{|tr| tr}.each do |tr|
data = tr.css('td').map{|td| td.text}
syllabus_url = tr.css('a').map{|a| a[:onclick]}[0].split('\'')[1]
course_days, course_periods, course_locations = [], [], []
(0..data[13].length - 1).each do |t|
course_days << data[13][t]
course_periods << PERIODS[data[14][t]]
course_locations << data[15]
end
course = {
year: @year, # 西元年
term: @term, # 學期 (第一學期=1，第二學期=2)
name: data[5].scan(/\S+/)[0], # 課程名稱
lecturer: data[6], # 授課教師
credits: data[12].to_i, # 學分數
code: "#{@year}-#{@term}-#{data[0]}_#{data[4]}",
general_code: data[4], # 選課代碼
url: syllabus_url, # 課程大綱之類的連結
required: data[11].include?('必'), # 必修或選修
department: data[2], # 開課系所
# department_code: data[1],
# note: data[18],
day_1: course_days[0],
day_2: course_days[1],
day_3: course_days[2],
day_4: course_days[3],
day_5: course_days[4],
day_6: course_days[5],
day_7: course_days[6],
day_8: course_days[7],
day_9: course_days[8],
period_1: course_periods[0],
period_2: course_periods[1],
period_3: course_periods[2],
period_4: course_periods[3],
period_5: course_periods[4],
period_6: course_periods[5],
period_7: course_periods[6],
period_8: course_periods[7],
period_9: course_periods[8],
location_1: course_locations[0],
location_2: course_locations[1],
location_3: course_locations[2],
location_4: course_locations[3],
location_5: course_locations[4],
location_6: course_locations[5],
location_7: course_locations[6],
location_8: course_locations[7],
location_9: course_locations[8],
}
@after_each_proc.call(course: course) if @after_each_proc
@courses << course
end
end
end
end