#!/usr/bin/env python2 # -*- coding: UTF-8 -*- # File: render.py # Date: Wed Mar 25 22:24:53 2015 +0800 # Author: Yuxin Wu import os import base64 import glob from pyquery import PyQuery import logging logger = logging.getLogger(__name__) LIB_PATH = os.path.dirname(os.path.abspath(__file__)) STATIC_PATH = os.path.join(LIB_PATH, 'static') HTML_FILE = os.path.join(STATIC_PATH, 'TP_INDEX.html') TIME_HTML_FILE = os.path.join(STATIC_PATH, 'TP_TIME.html') FRIEND_AVATAR_CSS_FILE = os.path.join(STATIC_PATH, 'avatar.css.tpl') try: from csscompressor import compress as css_compress except ImportError: css_compress = lambda x: x from .msg import * from .utils import ensure_unicode, ProgressReporter, pmap, timing from .smiley import SmileyProvider from .msgslice import MessageSlicerByTime, MessageSlicerBySize TEMPLATES_FILES = {TYPE_MSG: "TP_MSG", TYPE_IMG: "TP_IMG", TYPE_SPEAK: "TP_SPEAK", TYPE_EMOJI: "TP_EMOJI", TYPE_CUSTOM_EMOJI: "TP_IMG", TYPE_LINK: "TP_MSG"} TEMPLATES = {k: ensure_unicode(open(os.path.join(STATIC_PATH, '{}.html'.format(v))).read()) for k, v in TEMPLATES_FILES.iteritems()} class HTMLRender(object): def __init__(self, parser, res=None): self.html = ensure_unicode(open(HTML_FILE).read()) self.time_html = open(TIME_HTML_FILE).read() self.parser = parser self.res = res if self.res is None: logger.warn("Resource Directory not given. Images / Voice Message won't be displayed.") self.smiley = SmileyProvider() css_files = glob.glob(os.path.join(LIB_PATH, 'static/*.css')) self.css_string = [] # css to add for css in css_files: logger.info("Loading {}".format(os.path.basename(css))) css = ensure_unicode((open(css).read())) self.css_string.append(css) js_files = glob.glob(os.path.join(LIB_PATH, 'static/*.js')) # to load jquery before other js js_files = sorted(js_files, key=lambda f: 'jquery' in f, reverse=True) self.js_string = [] for js in js_files: logger.info("Loading {}".format(os.path.basename(js))) js = ensure_unicode(open(js).read()) self.js_string.append(js) @property def all_css(self): # call after processing all messages, # because smiley css need to be included only when necessary def process(css): css = css_compress(css) return u''.format(css) if hasattr(self, 'final_css'): return self.final_css + process(self.smiley.gen_used_smiley_css()) self.final_css = u"\n".join(map(process, self.css_string)) return self.final_css + process(self.smiley.gen_used_smiley_css()) @property def all_js(self): if hasattr(self, 'final_js'): return self.final_js def process(js): # TODO: add js compress return u''.format(js) self.final_js = u"\n".join(map(process, self.js_string)) return self.final_js #@timing(total=True) def render_msg(self, msg): """ render a message, return the html block""" # TODO for chatroom, add nickname on avatar sender = u'you ' + msg.get_msg_talker_id() if not msg.isSend else 'me' format_dict = {'sender_label': sender, 'time': msg.createTime } def fallback(): template = TEMPLATES[TYPE_MSG] content = msg.msg_str() format_dict['content'] = self.smiley.replace_smileycode(content) return template.format(**format_dict) template = TEMPLATES.get(msg.type) if msg.type == TYPE_SPEAK: audio_str, duration = self.res.get_voice_mp3(msg.imgPath) format_dict['voice_duration'] = duration format_dict['voice_str'] = audio_str return template.format(**format_dict) elif msg.type == TYPE_IMG: # imgPath was original THUMBNAIL_DIRPATH://th_xxxxxxxxx imgpath = msg.imgPath.split('_')[-1] if not imgpath: logger.warn('No imgpath in an image message. Perhaps a bug in wechat.') return fallback() bigimgpath = self.parser.imginfo.get(msg.msgSvrId) fnames = [k for k in [imgpath, bigimgpath] if k] img = self.res.get_img(fnames) if not img: logger.warn("No image thumbnail found for {}".format(imgpath)) return fallback() # TODO do not show fancybox when no bigimg found format_dict['img'] = (img, 'jpeg') return template.format(**format_dict) elif msg.type == TYPE_EMOJI: md5 = msg.imgPath if md5 in self.parser.internal_emojis: emoji_img, format = self.res.get_internal_emoji(self.parser.internal_emojis[md5]) else: if md5 in self.parser.emojis: group, _ = self.parser.emojis[md5] else: group = None emoji_img, format = self.res.get_emoji(md5, group) format_dict['emoji_format'] = format format_dict['emoji_img'] = emoji_img return template.format(**format_dict) elif msg.type == TYPE_CUSTOM_EMOJI: pq = PyQuery(msg.content) md5 = pq('emoticonmd5').text() format_dict['img'] = self.res.get_emoji(md5, None) return template.format(**format_dict) elif msg.type == TYPE_LINK: content = msg.msg_str() # TODO show a short link with long href, if link too long if content.startswith(u'URL:'): url = content[4:] content = u'URL:{0}'.format(url) format_dict['content'] = content return template.format(**format_dict) elif msg.type == TYPE_WX_VIDEO: # TODO: fetch video from resource return fallback() return fallback() def _render_partial_msgs(self, msgs): """ return single html""" self.smiley.used_smiley_id.clear() slicer = MessageSlicerByTime() slices = slicer.slice(msgs) blocks = [] for idx, slice in enumerate(slices): nowtime = slice[0].createTime if idx == 0 or \ slices[idx - 1][0].createTime.date() != nowtime.date(): timestr = nowtime.strftime("%m/%d %H:%M:%S") else: timestr = nowtime.strftime("%H:%M:%S") blocks.append(self.time_html.format(time=timestr)) blocks.extend([self.render_msg(m) for m in slice]) self.prgs.trigger(len(slice)) # string operation is extremely slow return self.html.format(extra_css=self.all_css, extra_js=self.all_js, talker=msgs[0].talker_name, messages=u''.join(blocks) ) def prepare_avatar_css(self, talkers): avatar_tpl= ensure_unicode(open(FRIEND_AVATAR_CSS_FILE).read()) my_avatar = self.res.get_avatar(self.parser.username) css = avatar_tpl.format(name='me', avatar=my_avatar) for talker in talkers: avatar = self.res.get_avatar(talker) css += avatar_tpl.format(name=talker, avatar=avatar) self.css_string.append(css) def render_msgs(self, msgs): """ render msgs of one friend, return a list of html""" talker_id = msgs[0].talker if msgs[0].is_chatroom(): talkers = set() for msg in msgs: talkers.add(msg.get_msg_talker_id()) else: talkers = set([talker_id]) self.prepare_avatar_css(talkers) voice_paths = [msg.imgPath for msg in msgs if msg.type == TYPE_SPEAK] self.res.cache_voice_mp3(voice_paths) logger.info(u"Rendering {} messages of {}({})".format( len(msgs), self.parser.contacts[talker_id], talker_id)) self.prgs = ProgressReporter("Render", total=len(msgs)) slice_by_size = MessageSlicerBySize().slice(msgs) ret = [self._render_partial_msgs(s) for s in slice_by_size] self.prgs.finish() return ret if __name__ == '__main__': r = HTMLRender() with open('/tmp/a.html', 'w') as f: print >> f, r.html.format(style=r.css, talker='talker', messages='haha')