python web py入门配套源代码

#python 3.6 #蔡军生 #http://blog.csdn.net/caimouse/article/details/51749579 # import web import settings import model import util import os import json import hashlib urls = ( '/', 'Index', #首页 '/register', 'Register', #注册 '/user/(\d+)', 'Profile', #用户简介 '/login', 'Login', #登录 '/logout', 'Logout', #退出登录 '/password', 'Password', #找回密码 '/add', 'Add', #发贴 '/view/(\d+)', 'View', #看贴/回贴 '/account/(\w+)', 'Account', #查看一个帐号所有文章 '/edit/(\d+)', 'Edit', #编辑和修改以前的文章 '/del/(\d+)', 'Del', #删除文章 '/about', 'About' #关于 ) # app = web.application(urls, globals(), autoreload = True) ##### BEG: 模板渲染 ##### curdir = os.path.abspath(os.path.dirname(__file__)) templates = curdir + '/templates/' def render(params={}, partial=False): global_vars = {**settings.GLOBAL_PARAMS, **params} if partial: return web.template.render(templates, globals=global_vars) else: return web.template.render(templates, base='layout', globals=global_vars) def titled_render(subtitle=''): subtitle = subtitle + ' - ' if subtitle else '' return render({'title': subtitle + settings.SITE_NAME, 'make_html': util.make_html, 'trim_utf8': util.trim_utf8, 'menu': util.menu(model.User())}) ##### END: 模板渲染 ##### class Index: def GET(self): i = web.input(page='1') page = int(i.page) page_posts, page_count = model.Post().list(page) #计算分页 grace = 5 range = grace * 2 start = page - grace if page - grace > 0 else 1 end = start + range if end > page_count: end = page_count start = end - range if end - range > 0 else 1 return titled_render().list(page_posts, page_count, page, start, end) class Register: def GET(self): return titled_render('注册').register() def POST(self): try: i = web.input() user_id = model.User().new(i.email, i.username, i.password) except Exception as e: print(e) return titled_render().failed('邮箱或帐号已存在，请重新<a href="/register">注册</a>') else: if user_id: # 设置cookie web.setcookie('user_id', str(user_id), settings.COOKIE_EXPIRES) raise web.seeother('/user/%d' % user_id) class Profile: def GET(self, user_id): user_id = int(user_id) status = model.User().status(user_id) if status['username']: if user_id == model.User().current_id(): return titled_render(status['username']).master_profile(status['username'], status['picture'], status['description']) else: return titled_render(status['username']).user_profile(status['username'], status['picture'], status['description']) else: raise web.notfound() def POST(self, user_id): # 获取当前登录用户的状态 user_id = int(user_id) user = model.User() status = user.status(user_id) # 将头像和简介 i = web.input(mypic={}, description='') if 'mypic' in i: filepath = i.mypic.filename.replace('\\','/') # 将Windows风格的斜杠转换为Linux风格 filename = filepath.split('/')[-1] # 文件名（带后缀） ext = filename.split('.')[-1] # 扩展名 # 扩展名不为空时才更新头像 if ext: # 网站主页的相对路径 rel_filename = settings.IMG_DIR + '/' + str(user_id) + '_head.' + ext # 服务器上的绝对路径 abs_filename = curdir + '/' + rel_filename # 1.更新头像路径和简介 if user.update(user_id, picture = rel_filename): # 2.更新数据库成功后，保存头像 with open(abs_filename, 'wb') as f: f.write(i.mypic.file.read()) # 对简介不做检查，直接更新 user.update(user_id, description=i.description) raise web.seeother('/user/%d' % user_id) class Login: def GET(self): return titled_render('登录').login() def POST(self): i = web.input(username='', password='') user_id = model.User().login(i.username, i.password) if user_id: # 设置cookie web.setcookie('user_id', str(user_id), settings.COOKIE_EXPIRES) raise web.seeother('/user/%d' % user_id) else: return titled_render().failed('登录验证失败，请检查帐号和密码是否正确') class Logout: def GET(self): if model.User().current_id(): # 用户已登录 # 取消cookie web.setcookie('user_id', '', -1) raise web.seeother('/') class Add: def GET(self): if model.User().current_id(): # 用户已登录 return titled_render('发帖').add() else: return titled_render().failed('操作受限，请先<a href="/login">登录</a>') def POST(self): i = web.input(title='', content='') post_id = model.Post().new(i.title, i.content, model.User().current_id()) if post_id: raise web.seeother("/view/%d" % post_id) else: return titled_render().failed('你不应该到达这里') class View: def GET(self, post_id): post_id = int(post_id) post = model.Post().view(post_id) if post: comment = model.Comment(int(post_id)) comments = comment.quote(comment.list()) comment_lis = util.comments_to_lis(comments) return titled_render(post.title).view(post, comment_lis) else: raise web.seeother('/') def POST(self, post_id): # jQuery+Ajax实现无刷新回帖 i = web.input() cur_user_id = model.User().current_id() web.header('Content-Type', 'application/json') if cur_user_id: comment = model.Comment(int(post_id)) # 回帖成功：返回"回帖"+"引用贴"信息 if comment.new(i.content, cur_user_id, i.quote_id): comments = comment.quote([comment.last()]) return json.dumps(util.comments_to_lis(comments)) # 无权限：返回空 return json.dumps([]) class Account: def GET(self, part): # 获取当前登录用户的状态 cur_user_id = model.User().current_id() status = model.User().status(cur_user_id) # 已登录用户才能进行账户管理 if cur_user_id: dispatch = {'posts': titled_render('文章').account_posts(model.Post().digest_list(cur_user_id)), 'settings': titled_render('设置').account_settings(status['username'], status['picture'], status['description'], status['email'])} if part in dispatch: return dispatch[part] else: # 无法访问 raise web.notfound() # 用户未登录 return titled_render().failed('操作受限，请先<a href="/login">登录</a>') def POST(self, part): # 获取当前登录用户的状态 user = model.User() cur_user_id = user.current_id() status = user.status(cur_user_id) i = web.input(email='', password='') web.header('Content-Type', 'application/json') if cur_user_id: # 修改成功 if user.update(cur_user_id, email=i.email, password=