treecutter/page.py

   1 #!/usr/bin/python
   2 import os
   3 import subprocess
   4 import tempfile
   5 from amara import bindery
   6 from amara.xslt import transform
   7 from Cheetah.Template import Template
   8 import treecutter.const as const
   9 from treecutter.tools import mkdir_p
  10
  11 class Page():
  12     """Class representing a version of a webpage"""
  13     def __init__(self,link,page):
  14         self._link = link
  15         self._file = page[1]
  16         self._lang = page[0]
  17         self._doc = None
  18         self._resources = []
  19         self._title = None
  20         self._menu = None
  21         self._rendered_article = None
  22
  23     def language(self):
  24         return self._lang
  25
  26     def resources(self):
  27         return set(self._resources)
  28
  29     def menu(self):
  30         return self._menu
  31
  32     def set_article(self,art):
  33         self._rendered_article = art
  34
  35     def prepare(self):
  36         self._doc = bindery.parse(self._file, prefixes=const.PREFIXES)
  37         if self._doc.xml_select(u'/db:article/db:info/db:title'):
  38             self._title = unicode(self._doc.article.info.title)
  39         if self._doc.xml_select(u'/db:article/db:info/db:titleabbrev'):
  40             self._menu = unicode(self._doc.article.info.titleabbrev)
  41
  42         dirname = os.path.dirname(self._file)
  43         code  = self._doc.xml_select(u"//xi:include[@parse='text']")
  44         if code:
  45             for c in code:
  46                 (p, ext) = os.path.splitext(c.href)
  47                 if ext in const.valid_scripts:
  48                     exe = []
  49                     exe.append(os.path.join(os.path.abspath(dirname)+'/'+c.href))
  50                     if c.xml_select(u"//xi:include[@accept-language]"):
  51                         alang = c.xml_attributes[None, "accept-language"]
  52                         exe.append("lang="+alang)
  53                     if c.xml_select(u"//xi:include[@xpointer]"):
  54                         exe.append("xptr="+c.xpointer)
  55                     xml = subprocess.Popen(exe,stdout=subprocess.PIPE)
  56                     xstr = bindery.parse(str(xml.stdout.read()))
  57                     idp = c.xml_index_on_parent
  58                     for x in xstr.xml_children:
  59                         c.xml_parent.xml_insert(idp,x)
  60                         c.xml_parent.xml_remove(c)
  61
  62         for r in self._doc.xml_select(u"//db:link[@xl:href]"):
  63             rf = os.path.join(dirname,r.href)
  64             if os.path.isfile(rf):
  65                 self._resources.append(rf)
  66         for i in self._doc.xml_select(u"//db:imagedata[@fileref]"):
  67             im = os.path.join(dirname,i.fileref)
  68             if os.path.isfile(im):
  69                 self._resources.append(im)
  70         for i in self._doc.xml_select(u"//html:form[@action]"):
  71             pyscript = re.split('\.py',i.action,1)[0]+'.py'
  72             im = os.path.join(dirname,pyscript)
  73             if os.path.isfile(im):
  74                 self._resources.append(im)
  75
  76     def render(self, style):
  77         #  amara can not handle the docbook stylesheets
  78         #  xmlarticle = transform(doc,style_xslt)
  79         cwd = os.getcwd()
  80         dirname = os.path.dirname(self._file)
  81         os.chdir(dirname)
  82         infile  = os.path.basename(tempfile.mktemp())
  83         outfile = tempfile.mktemp()
  84         tfi = open(infile,'w')
  85         tfi.write(self._doc.xml_encode(omit_xml_declaration=True))
  86         tfi.close()
  87 #  cmd = ["saxon-xslt-xinclude","-o",outfile,infile,style_xslt]
  88         cmd = ["xsltproc","--xinclude","--output",outfile,style+"docbook.xsl",infile]
  89         retcode = subprocess.call(cmd)
  90         if retcode:
  91             print 'Error: '+' '.join(cmd)+' Returncode ['+str(retcode)+']'
  92         tfo = open(outfile,'r')
  93         self._rendered_article = tfo.read()
  94         tfo.close()
  95         os.remove(infile)
  96         os.remove(outfile)
  97         os.chdir(cwd)
  98
  99     def template(self,sitemap,style,tdir):
 100         htmlmenu =  sitemap.gen_menu(self._lang,None,"menu")
 101         levelmenu = sitemap.gen_menu(self._lang,self,"tree")
 102         langmenu = sitemap.lang_menu(self._lang,self._link)
 103         template = Template(file=style+'index.'+self._lang+'.html.tmpl',
 104                             searchList=[{'title':self._title},
 105                                         {'menu':htmlmenu},
 106                                         {'article':self._rendered_article},
 107                                         {'levelmenu':levelmenu},
 108                                         {'langmenu':langmenu}])
 109         outfile = tdir+'html'.join(self._file.rsplit('xml',1))
 110         mkdir_p(os.path.dirname(outfile))
 111         out = open(outfile, 'w')
 112         out.write(str(template))
 113         out.close()