from cherrypy import cpg
from cgi import escape

# Display elements from a dictionary as items in a list
def show_dict(d):
    items = d.items()
    items.sort()
    yield "<ul>\n"

    for (name, value) in items:
        yield "<li>" + escape(name) + " &mdash " + escape(repr(value)) + "\n"
    yield "</ul>\n"


class MyServer(object):
    # A simple hello
    def hello(self, username="root"):
        yield "Hello, <i>%s</i>" % (escape(username,))

    hello.exposed = True

    # Add two numbers.
    # Show how to change the reponse content-type
    def add(self, a, b):
        a = int(a)
        b = int(b)
        cpg.response.headerMap['Content-Type'] = "text/plain"
        yield "%s + %s = %s" % (a, b, a+b)

    add.exposed = True

    # Print a lot of information about the request
    # This gets called when the resource isn't found and when
    #   there is no 'index' resource.
    def default(self, *args, **kwargs):
        yield "<h2>Query parameters</h2>\n"
        for line in show_dict(kwargs):
            yield line

        yield "<h2>Request information</h2>\n"
        for line in show_dict(
            {"remote address": cpg.request.remoteAddr,
             "remote host": cpg.request.remoteHost,
             "request line": cpg.request.requestLine,
             "method": cpg.request.method,
             "query string": cpg.request.queryString,
             "path": cpg.request.path,
             "base": cpg.request.base,
             "browser URL": cpg.request.browserUrl,
             }):
            yield line

        yield "<h2>Client HTTP headers</h2>\n"
        for line in show_dict(cpg.request.headerMap):
            yield line
        
    default.exposed = True


cpg.root = MyServer()

if __name__ == "__main__":
    cpg.server.start()