wall.py
来自「Ajax最流行书籍」· Python 代码 · 共 91 行
PY
91 行
#!/usr/bin/env pythonimport cgiimport cgitb;cgitb.enable()import datetimeimport osimport sajax1WALLFILE = '/tmp/wall.html'if not os.path.exists(WALLFILE): fh = open(WALLFILE, 'w') fh.close()def colourify_ip(ip): colour = ''.join(['%02x' % int(part) for part in ip.split('.')[-3:]]) return colour def add_line(msg): f = open("/tmp/wall.html","a") dt = datetime.datetime.utcnow().strftime("%Y-%m-%d %H:%M:%S") msg = cgi.escape(msg) remote = os.environ['REMOTE_ADDR'] colour = colourify_ip(remote) f.write('<span style="color:#%(colour)s">%(dt)s</span> %(msg)s<br />\n' % locals()) f.close() def refresh(): f = open("/tmp/wall.html") return '\n'.join(list(f)[-25:]) sajax1.sajax_init()sajax1.sajax_export(refresh, add_line)sajax1.sajax_handle_client_request()print """<html><head> <title>PyWall</title> <script>"""sajax1.sajax_show_javascript()print """ var check_n = 0; function refresh_cb(new_data) { document.getElementById("wall").innerHTML = new_data; document.getElementById("status").innerHTML = "Checked #" + check_n++; setTimeout("refresh()", 1000); } function refresh() { document.getElementById("status").innerHTML = "Checking.."; x_refresh(refresh_cb); } function add_cb() { // we don't care.. } function add() { var line; var handle; handle = document.getElementById("handle").value; line = document.getElementById("line").value; if (line == "") return; x_add_line("[" + handle + "] " + line, add_cb); document.getElementById("line").value = ""; } </script> </head><body onload="refresh();"> <a href="http://">Sajax</a> - Wall Example<br/> <input type="text" name="handle" id="handle" value="(name)" onfocus="this.select()" style="width:130px;"> <input type="text" name="line" id="line" value="(enter your message here)" onfocus="this.select()" style="width:300px;"> <input type="button" name="check" value="Post message" onclick="add(); return false;"> <div id="wall"></div> <div id="status"><em>Loading..</em></div> </body></html>""" % locals()⌨️ 快捷键说明
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