[小程式]hipls

有時候無聊會想聽聽廣播，又懶得多開一個網頁， hinedo 似乎可以直接播放，但之前用 openSUSE 時編不起來，就乾脆自己寫一個，這程式會直接到 hiChannel 抓所有的廣播電台清單，讓使用者選擇想聽那幾個電台，然後再將這幾個電台網址存成一份 playlist ，只要使用支援 mms 協定的播放器播放就可以聽了，目前遇到的問題是用 mpayer 播放會顯示亂碼...

用 python 內建函式庫寫的，照理說 windows 也可以使用，不過我只在 linux 上試過，有問題歡迎回報 :)

Updated 11/05：修改顯示電台清單時，因為中文字元長度問題而無法對齊的狀況

Usage：
1. save as hipls.py
2. python hipls.py

Download：hipls.py

Source Code：

#! /usr/bin/env python
# -*- coding: utf-8 -*-
#
# Author : lefthaha (at) gmail{dot}com
# License :http://creativecommons.org/licenses/by-nc-sa/2.5/tw
# Last Modify : 2009/11/05
#

import sys
import urllib2
import re
import string

def get_html(url):
  # must add header to connect hichannel
  # http://www.voidspace.org.uk/python/articles/urllib2.shtml
  headers = {"User-Agent":" Mozilla/5.0 "}
  req = urllib2.Request(url, None, headers)
  response = urllib2.urlopen(req)
  return response.readlines()

def get_match(pattern, target):
  result = []
  for line in target:
      result.append( pattern.findall(line) )
  # strip empty result , able to handle multiple matches
  result = filter(lambda x: x is not None, result)
  result = [ x[i] for x in result for i in range( len(x) ) ]
  return result

def show_all(rlist):
  # Updated 2009/11/05
  print "目前搜尋到的電台有："
  for num in range(0, len(rlist)-1, 2):
      name1 = rlist[num].name.decode("UTF8")
      mytab = len(name1.encode("BIG5")) - len(name1) 
      print "({0:02}) {1:{4}} ({2:02}) {3}".format(num+1,\
            rlist[num].name, num+2, rlist[num+1].name, 30+mytab)
  print "請輸入你喜歡的電台編號，並且以逗號區別 (ex : 5,4,3,2,1):"

def edit_list(rlist):
  show_all(rlist)
  inl = re.split(r",|，" ,sys.stdin.readline() )
  print "你所輸入的電台順序是："
  for num in range( len(inl) ):
      inl[num] = string.atoi(inl[num])-1
      print "({0}) {1}".format(num+1,rlist[inl[num]].name)
  print "以上是否正確？(Y/n)"
  if re.match(r"[y|Y]", sys.stdin.readline() ) is not None:
      return inl
  else:
      print "請重新選擇電台順序"
      return None

def create_list(all_list, to_save):
  entries = len(to_save)
  content = "[playlist]\nNumberOfEntries={0}\n\n".format(entries)
  for num in range(entries):
      content = content + \
      "File{0}={1}\nTitle{0}={2}\nLength{0}=-1\n\n".format(num+1,\
      all_list[ to_save[num]].get_mms(),all_list[ to_save[num]].name )
  content = content + "Version=2"
  plsf = open("MyHipls.pls",'w')
  plsf.write(content)
  plsf.close()

class Radio:
  def __init__(self, rid_url):
      # strip useless strings
      rid_url = re.sub( r".*id=|<", "", rid_url)
      rid_url = re.sub( r"\">", ",", rid_url)
      # split and assign radio id and name
      self.rid, self.name = re.split(",", rid_url)
      self.player_url="http://hichannel.hinet.net/player/radio/\
      index.jsp?radio_id=" + self.rid
  def get_mms(self):
      page = get_html(self.player_url)
      #?data=mms://bcr.media.hinet.net/RA000007&id=RADIO:206&group="+g);
      line = get_match(re.compile(r".*=mms:.*"), page)
      line = re.sub(r".*mms", "mms", line[0])
      self.mms_url = re.sub(r"&id.*", '', line)
      return self.mms_url

def main():
  list_url = "http://hichannel.hinet.net/radioRank.do?typeId=99"
  list_page = get_html(list_url)
  # example : <a href="/radio.do?id=177">ICRT</a>
  rids = get_match( re.compile(r"<a.*\"/radio.+\d\">[^<]+?<"), list_page)
  radio_list=[]
  for line in rids:
      # initialize class Radio
      radio_list.append( Radio(line) )
  list_to_save = None
  while( list_to_save is None):
      list_to_save = edit_list(radio_list)
  create_list(radio_list, list_to_save)
  print "已將所選擇的電台清單儲存至 MyHipls.pls !"

if __name__ == "__main__":
  main()