Updated code to permit webhook requests for more than just messages:created

[joshand]

I was in need of a bot that could monitor memberships data, so I extended this one to do that.

With the changes in the PR, the default behavior is still in tact. However, here is an example of how you would monitor memberships data:

In your main code, when you create an instance of the bot, add the "wh_resource" and "wh_event" parameters:

bot = SparkBot(bot_app_name, spark_bot_token=spark_token,
               spark_bot_url=bot_url, spark_bot_email=bot_email, debug=True,
               wh_resource="memberships", wh_event="all")

Then, add a new command for the resource you want to monitor:
bot.add_command('memberships', '*', check_memberships)

Finally, add a function to handle that command. For example, I needed the bot (which is assigned to the room as a moderator) to be able to remove anyone from a room who is not in a set of whitelisted domains (i.e., to ensure that a room stays "internal-only"). This function has an additional parameter (sp in my example), which is used to directly access the SparkAPI object.

def check_memberships(sp, incoming_msg):
    wl_dom = os.getenv("WHITELIST_DOMAINS")
    if wl_dom.find("[") <= 0:
        wl_dom = '["' + wl_dom + '"]'
        wl_dom = wl_dom.replace(",", '","')

    if wl_dom and incoming_msg["event"] != "deleted":
        pemail = incoming_msg["data"]["personEmail"]
        pdom = pemail.split("@")[1]
        plist = json.loads(wl_dom)
        print(pemail, pdom, plist)
        if pdom in plist or pemail == bot_email:
            # membership check succeeded
            return ""
        else:
            # membership check failed
            print("membership failed. deleting " + incoming_msg["data"]["id"])
            sp.spark.memberships.delete(incoming_msg["data"]["id"])
            return "'" + pemail + "' was automatically removed from this space; it is restricted to only " \
                                  "internal users."
    else:
        return ""

[coveralls]

Pull Request Test Coverage Report for Build 47

• 27 of 32 (84.38%) changed or added relevant lines in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.8%) to 93.023%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
ciscosparkbot/Spark.py	27	32	84.38%

Totals
Change from base Build 38:	-0.8%
Covered Lines:	160
Relevant Lines:	172

---

💛 - Coveralls

[coveralls]

Pull Request Test Coverage Report for Build 47

• 27 of 32 (84.38%) changed or added relevant lines in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.8%) to 93.023%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
ciscosparkbot/Spark.py	27	32	84.38%

Totals
Change from base Build 38:	-0.8%
Covered Lines:	160
Relevant Lines:	172

---

💛 - Coveralls

[joshand]

@kecorbin Any feedback on this PR?