From f59a8ea42dbf51cd4d316b2c7709ae14cf12cb24 Mon Sep 17 00:00:00 2001
From: Rifa Achrinza <25147899+achrinza@users.noreply.github.com>
Date: Fri, 10 Apr 2020 15:18:52 +0800
Subject: [PATCH 1/3] chore: adds copyright headers

Signed-off-by: Rifa Achrinza <25147899+achrinza@users.noreply.github.com>
---
 functions/package.json                            | 4 +++-
 functions/src/config.example.ts                   | 5 +++++
 functions/src/firebaseFunctions.ts                | 5 +++++
 functions/src/index.ts                            | 5 +++++
 functions/src/opentrace/getHandshakePin.ts        | 5 +++++
 functions/src/opentrace/getTempIDs.ts             | 5 +++++
 functions/src/opentrace/getUploadToken.ts         | 5 +++++
 functions/src/opentrace/processUploadedData.ts    | 5 +++++
 functions/src/opentrace/types/FunctionConfig.ts   | 5 +++++
 functions/src/opentrace/types/HeartBeatEvent.ts   | 5 +++++
 functions/src/opentrace/types/StreetPassRecord.ts | 5 +++++
 functions/src/opentrace/utils/Authenticator.ts    | 5 +++++
 functions/src/opentrace/utils/CustomEncrypter.ts  | 5 +++++
 functions/src/opentrace/utils/PinGenerator.ts     | 5 +++++
 functions/src/opentrace/utils/formatTimestamp.ts  | 5 +++++
 functions/src/opentrace/utils/getEncryptionKey.ts | 5 +++++
 functions/test/index.test.ts                      | 5 +++++
 functions/test/opentrace/config.test.ts           | 5 +++++
 18 files changed, 88 insertions(+), 1 deletion(-)

diff --git a/functions/package.json b/functions/package.json
index 97eebb3..21c00c9 100644
--- a/functions/package.json
+++ b/functions/package.json
@@ -30,5 +30,7 @@
     "@types/chai": "^4.2.0",
     "ts-node": "^8.8.2"
   },
-  "private": true
+  "private": true,
+  "license": "GPL-3.0+",
+  "copyright.owner": "Singapore Government Agency"
 }
diff --git a/functions/src/config.example.ts b/functions/src/config.example.ts
index c563d1e..c6e817f 100644
--- a/functions/src/config.example.ts
+++ b/functions/src/config.example.ts
@@ -1,3 +1,8 @@
+// Copyright Singapore Government Agency 2020. All Rights Reserved.
+// Node module: functions
+// This file is licensed under the GNU General Public License v3.0 or later.
+// License text available at https://www.gnu.org/licenses/gpl-3.0-standalone.html
+
 import FunctionConfig from "./opentrace/types/FunctionConfig";
 import Authenticator from "./opentrace/utils/Authenticator";
 import PinGenerator from "./opentrace/utils/PinGenerator";
diff --git a/functions/src/firebaseFunctions.ts b/functions/src/firebaseFunctions.ts
index 9f4db02..fabf6f0 100644
--- a/functions/src/firebaseFunctions.ts
+++ b/functions/src/firebaseFunctions.ts
@@ -1,3 +1,8 @@
+// Copyright Singapore Government Agency 2020. All Rights Reserved.
+// Node module: functions
+// This file is licensed under the GNU General Public License v3.0 or later.
+// License text available at https://www.gnu.org/licenses/gpl-3.0-standalone.html
+
 import * as functions from "firebase-functions";
 
 import config from "./config";
diff --git a/functions/src/index.ts b/functions/src/index.ts
index 9544355..3126611 100644
--- a/functions/src/index.ts
+++ b/functions/src/index.ts
@@ -1,3 +1,8 @@
+// Copyright Singapore Government Agency 2020. All Rights Reserved.
+// Node module: functions
+// This file is licensed under the GNU General Public License v3.0 or later.
+// License text available at https://www.gnu.org/licenses/gpl-3.0-standalone.html
+
 import * as admin from "firebase-admin";
 admin.initializeApp();
 
diff --git a/functions/src/opentrace/getHandshakePin.ts b/functions/src/opentrace/getHandshakePin.ts
index 39a6c2c..bd56f11 100644
--- a/functions/src/opentrace/getHandshakePin.ts
+++ b/functions/src/opentrace/getHandshakePin.ts
@@ -1,3 +1,8 @@
+// Copyright Singapore Government Agency 2020. All Rights Reserved.
+// Node module: functions
+// This file is licensed under the GNU General Public License v3.0 or later.
+// License text available at https://www.gnu.org/licenses/gpl-3.0-standalone.html
+
 import * as functions from "firebase-functions";
 
 import config from "../config";
diff --git a/functions/src/opentrace/getTempIDs.ts b/functions/src/opentrace/getTempIDs.ts
index aefebef..3d136b3 100644
--- a/functions/src/opentrace/getTempIDs.ts
+++ b/functions/src/opentrace/getTempIDs.ts
@@ -1,3 +1,8 @@
+// Copyright Singapore Government Agency 2020. All Rights Reserved.
+// Node module: functions
+// This file is licensed under the GNU General Public License v3.0 or later.
+// License text available at https://www.gnu.org/licenses/gpl-3.0-standalone.html
+
 import * as moment from "moment";
 
 import config from "../config";
diff --git a/functions/src/opentrace/getUploadToken.ts b/functions/src/opentrace/getUploadToken.ts
index 34767a5..1426ff6 100644
--- a/functions/src/opentrace/getUploadToken.ts
+++ b/functions/src/opentrace/getUploadToken.ts
@@ -1,3 +1,8 @@
+// Copyright Singapore Government Agency 2020. All Rights Reserved.
+// Node module: functions
+// This file is licensed under the GNU General Public License v3.0 or later.
+// License text available at https://www.gnu.org/licenses/gpl-3.0-standalone.html
+
 import * as functions from "firebase-functions";
 import * as admin from "firebase-admin";
 
diff --git a/functions/src/opentrace/processUploadedData.ts b/functions/src/opentrace/processUploadedData.ts
index 4bec9d1..d7e0ee1 100644
--- a/functions/src/opentrace/processUploadedData.ts
+++ b/functions/src/opentrace/processUploadedData.ts
@@ -1,3 +1,8 @@
+// Copyright Singapore Government Agency 2020. All Rights Reserved.
+// Node module: functions
+// This file is licensed under the GNU General Public License v3.0 or later.
+// License text available at https://www.gnu.org/licenses/gpl-3.0-standalone.html
+
 import * as functions from "firebase-functions";
 import {ObjectMetadata} from "firebase-functions/lib/providers/storage";
 
diff --git a/functions/src/opentrace/types/FunctionConfig.ts b/functions/src/opentrace/types/FunctionConfig.ts
index 1815bc9..8280c5b 100644
--- a/functions/src/opentrace/types/FunctionConfig.ts
+++ b/functions/src/opentrace/types/FunctionConfig.ts
@@ -1,3 +1,8 @@
+// Copyright Singapore Government Agency 2020. All Rights Reserved.
+// Node module: functions
+// This file is licensed under the GNU General Public License v3.0 or later.
+// License text available at https://www.gnu.org/licenses/gpl-3.0-standalone.html
+
 import Authenticator from "../utils/Authenticator";
 import PinGenerator from "../utils/PinGenerator";
 
diff --git a/functions/src/opentrace/types/HeartBeatEvent.ts b/functions/src/opentrace/types/HeartBeatEvent.ts
index f4ae4b6..bb142d5 100644
--- a/functions/src/opentrace/types/HeartBeatEvent.ts
+++ b/functions/src/opentrace/types/HeartBeatEvent.ts
@@ -1,3 +1,8 @@
+// Copyright Singapore Government Agency 2020. All Rights Reserved.
+// Node module: functions
+// This file is licensed under the GNU General Public License v3.0 or later.
+// License text available at https://www.gnu.org/licenses/gpl-3.0-standalone.html
+
 interface HeartBeatEvent {
   timestamp: number,
   msg?: string,
diff --git a/functions/src/opentrace/types/StreetPassRecord.ts b/functions/src/opentrace/types/StreetPassRecord.ts
index 537629a..12700a7 100644
--- a/functions/src/opentrace/types/StreetPassRecord.ts
+++ b/functions/src/opentrace/types/StreetPassRecord.ts
@@ -1,3 +1,8 @@
+// Copyright Singapore Government Agency 2020. All Rights Reserved.
+// Node module: functions
+// This file is licensed under the GNU General Public License v3.0 or later.
+// License text available at https://www.gnu.org/licenses/gpl-3.0-standalone.html
+
 /**
  * Format:
  *   Timestamp timestamp
diff --git a/functions/src/opentrace/utils/Authenticator.ts b/functions/src/opentrace/utils/Authenticator.ts
index 97eeda6..4e75773 100644
--- a/functions/src/opentrace/utils/Authenticator.ts
+++ b/functions/src/opentrace/utils/Authenticator.ts
@@ -1,3 +1,8 @@
+// Copyright Singapore Government Agency 2020. All Rights Reserved.
+// Node module: functions
+// This file is licensed under the GNU General Public License v3.0 or later.
+// License text available at https://www.gnu.org/licenses/gpl-3.0-standalone.html
+
 import * as functions from "firebase-functions";
 import {CallableContext} from "firebase-functions/lib/providers/https";
 
diff --git a/functions/src/opentrace/utils/CustomEncrypter.ts b/functions/src/opentrace/utils/CustomEncrypter.ts
index b4fff6b..c533394 100644
--- a/functions/src/opentrace/utils/CustomEncrypter.ts
+++ b/functions/src/opentrace/utils/CustomEncrypter.ts
@@ -1,3 +1,8 @@
+// Copyright Singapore Government Agency 2020. All Rights Reserved.
+// Node module: functions
+// This file is licensed under the GNU General Public License v3.0 or later.
+// License text available at https://www.gnu.org/licenses/gpl-3.0-standalone.html
+
 import * as crypto from "crypto";
 import config from "../../config";
 
diff --git a/functions/src/opentrace/utils/PinGenerator.ts b/functions/src/opentrace/utils/PinGenerator.ts
index f5a5ee1..e9e4ac4 100644
--- a/functions/src/opentrace/utils/PinGenerator.ts
+++ b/functions/src/opentrace/utils/PinGenerator.ts
@@ -1,3 +1,8 @@
+// Copyright Singapore Government Agency 2020. All Rights Reserved.
+// Node module: functions
+// This file is licensed under the GNU General Public License v3.0 or later.
+// License text available at https://www.gnu.org/licenses/gpl-3.0-standalone.html
+
 /**
  * This class uses a plain substring to generate a pin from user uid.
  * It should be subclassed with a secure implementation.
diff --git a/functions/src/opentrace/utils/formatTimestamp.ts b/functions/src/opentrace/utils/formatTimestamp.ts
index 2ffd6e0..40ee469 100644
--- a/functions/src/opentrace/utils/formatTimestamp.ts
+++ b/functions/src/opentrace/utils/formatTimestamp.ts
@@ -1,3 +1,8 @@
+// Copyright Singapore Government Agency 2020. All Rights Reserved.
+// Node module: functions
+// This file is licensed under the GNU General Public License v3.0 or later.
+// License text available at https://www.gnu.org/licenses/gpl-3.0-standalone.html
+
 /**
  * Convert timestamp (expressed in seconds since the Epoch) to "DD-MMM-YYYY HH:mm:ss Z" format
  * @param timestamp
diff --git a/functions/src/opentrace/utils/getEncryptionKey.ts b/functions/src/opentrace/utils/getEncryptionKey.ts
index 3a237c6..a588726 100644
--- a/functions/src/opentrace/utils/getEncryptionKey.ts
+++ b/functions/src/opentrace/utils/getEncryptionKey.ts
@@ -1,3 +1,8 @@
+// Copyright Singapore Government Agency 2020. All Rights Reserved.
+// Node module: functions
+// This file is licensed under the GNU General Public License v3.0 or later.
+// License text available at https://www.gnu.org/licenses/gpl-3.0-standalone.html
+
 import {SecretManagerServiceClient} from "@google-cloud/secret-manager";
 
 import config from "../../config";
diff --git a/functions/test/index.test.ts b/functions/test/index.test.ts
index 678b1d3..ce9836e 100644
--- a/functions/test/index.test.ts
+++ b/functions/test/index.test.ts
@@ -1,3 +1,8 @@
+// Copyright Singapore Government Agency 2020. All Rights Reserved.
+// Node module: functions
+// This file is licensed under the GNU General Public License v3.0 or later.
+// License text available at https://www.gnu.org/licenses/gpl-3.0-standalone.html
+
 import * as admin from "firebase-admin";
 import config from "../src/config";
 
diff --git a/functions/test/opentrace/config.test.ts b/functions/test/opentrace/config.test.ts
index edbd981..caf4dde 100644
--- a/functions/test/opentrace/config.test.ts
+++ b/functions/test/opentrace/config.test.ts
@@ -1,3 +1,8 @@
+// Copyright Singapore Government Agency 2020. All Rights Reserved.
+// Node module: functions
+// This file is licensed under the GNU General Public License v3.0 or later.
+// License text available at https://www.gnu.org/licenses/gpl-3.0-standalone.html
+
 import * as admin from "firebase-admin";
 import * as functions from "firebase-functions";
 import * as chai from "chai";

From fe93082f989bcc9838c82107abe056e9b4e92c47 Mon Sep 17 00:00:00 2001
From: Rifa Achrinza <25147899+achrinza@users.noreply.github.com>
Date: Fri, 10 Apr 2020 15:19:12 +0800
Subject: [PATCH 2/3] chore: updates LICENSE

Signed-off-by: Rifa Achrinza <25147899+achrinza@users.noreply.github.com>
---
 LICENSE           | 632 ++++++++++++++++++++++++++++++++++++++++++++++
 LICENSE.md        | 595 -------------------------------------------
 functions/LICENSE | 632 ++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 1264 insertions(+), 595 deletions(-)
 create mode 100644 LICENSE
 delete mode 100644 LICENSE.md
 create mode 100644 functions/LICENSE

diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..aff43e5
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,632 @@
+Copyright (c) Singapore Government Agency 2020.
+Node module: functions
+This project is licensed under the GNU General Public License v3.0 or later, full text below.
+
+--------
+
+GNU General Public License v3.0 or later
+
+GNU GENERAL PUBLIC LICENSE
+
+Version 3, 29 June 2007
+
+Copyright © 2007 Free Software Foundation, Inc. <https://fsf.org/>
+
+Everyone is permitted to copy and distribute verbatim copies of this license
+document, but changing it is not allowed.
+
+Preamble
+
+The GNU General Public License is a free, copyleft license for software and
+other kinds of works.
+
+The licenses for most software and other practical works are designed to take
+away your freedom to share and change the works. By contrast, the GNU General
+Public License is intended to guarantee your freedom to share and change all
+versions of a program--to make sure it remains free software for all its users.
+We, the Free Software Foundation, use the GNU General Public License for most of
+our software; it applies also to any other work released this way by its
+authors. You can apply it to your programs, too.
+
+When we speak of free software, we are referring to freedom, not price. Our
+General Public Licenses are designed to make sure that you have the freedom to
+distribute copies of free software (and charge for them if you wish), that you
+receive source code or can get it if you want it, that you can change the
+software or use pieces of it in new free programs, and that you know you can do
+these things.
+
+To protect your rights, we need to prevent others from denying you these rights
+or asking you to surrender the rights. Therefore, you have certain
+responsibilities if you distribute copies of the software, or if you modify it:
+responsibilities to respect the freedom of others.
+
+For example, if you distribute copies of such a program, whether gratis or for a
+fee, you must pass on to the recipients the same freedoms that you received. You
+must make sure that they, too, receive or can get the source code. And you must
+show them these terms so they know their rights.
+
+Developers that use the GNU GPL protect your rights with two steps: (1) assert
+copyright on the software, and (2) offer you this License giving you legal
+permission to copy, distribute and/or modify it.
+
+For the developers' and authors' protection, the GPL clearly explains that there
+is no warranty for this free software. For both users' and authors' sake, the
+GPL requires that modified versions be marked as changed, so that their problems
+will not be attributed erroneously to authors of previous versions.
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+Some devices are designed to deny users access to install or run modified
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+The precise terms and conditions for copying, distribution and modification
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+TERMS AND CONDITIONS
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+0. Definitions.
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+"This License" refers to version 3 of the GNU General Public License.
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+"Copyright" also means copyright-like laws that apply to other kinds of works,
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+purposes, or (2) anything designed or sold for incorporation into a dwelling. In
+determining whether a product is a consumer product, doubtful cases shall be
+resolved in favor of coverage. For a particular product received by a particular
+user, "normally used" refers to a typical or common use of that class of
+product, regardless of the status of the particular user or of the way in which
+the particular user actually uses, or expects or is expected to use, the
+product. A product is a consumer product regardless of whether the product has
+substantial commercial, industrial or non-consumer uses, unless such uses
+represent the only significant mode of use of the product.
+
+"Installation Information" for a User Product means any methods, procedures,
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+modified versions of a covered work in that User Product from a modified version
+of its Corresponding Source. The information must suffice to ensure that the
+continued functioning of the modified object code is in no case prevented or
+interfered with solely because modification has been made.
+
+If you convey an object code work under this section in, or with, or
+specifically for use in, a User Product, and the conveying occurs as part of a
+transaction in which the right of possession and use of the User Product is
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+this section must be accompanied by the Installation Information. But this
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+work has been installed in ROM).
+
+The requirement to provide Installation Information does not include a
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+Corresponding Source conveyed, and Installation Information provided, in accord
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+special password or key for unpacking, reading or copying.
+
+7. Additional Terms.
+
+"Additional permissions" are terms that supplement the terms of this License by
+making exceptions from one or more of its conditions. Additional permissions
+that are applicable to the entire Program shall be treated as though they were
+included in this License, to the extent that they are valid under applicable
+law. If additional permissions apply only to part of the Program, that part may
+be used separately under those permissions, but the entire Program remains
+governed by this License without regard to the additional permissions.
+
+When you convey a copy of a covered work, you may at your option remove any
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+you modify the work.) You may place additional permissions on material, added by
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+Notwithstanding any other provision of this License, for material you add to a
+covered work, you may (if authorized by the copyright holders of that material)
+supplement the terms of this License with terms:
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+a) Disclaiming warranty or limiting liability differently from the terms of
+sections 15 and 16 of this License; or
+
+b) Requiring preservation of specified reasonable legal notices or author
+attributions in that material or in the Appropriate Legal Notices displayed by
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+All other non-permissive additional terms are considered "further restrictions"
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+You may not propagate or modify a covered work except as expressly provided
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+will automatically terminate your rights under this License (including any
+patent licenses granted under the third paragraph of section 11).
+
+However, if you cease all violation of this License, then your license from a
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+Moreover, your license from a particular copyright holder is reinstated
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+reasonable means, this is the first time you have received notice of violation
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+violation prior to 30 days after your receipt of the notice.
+
+Termination of your rights under this section does not terminate the licenses of
+parties who have received copies or rights from you under this License. If your
+rights have been terminated and not permanently reinstated, you do not qualify
+to receive new licenses for the same material under section 10.
+
+9. Acceptance Not Required for Having Copies.
+
+You are not required to accept this License in order to receive or run a copy of
+the Program. Ancillary propagation of a covered work occurring solely as a
+consequence of using peer-to-peer transmission to receive a copy likewise does
+not require acceptance. However, nothing other than this License grants you
+permission to propagate or modify any covered work. These actions infringe
+copyright if you do not accept this License. Therefore, by modifying or
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+so.
+
+10. Automatic Licensing of Downstream Recipients.
+
+Each time you convey a covered work, the recipient automatically receives a
+license from the original licensors, to run, modify and propagate that work,
+subject to this License. You are not responsible for enforcing compliance by
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+
+An "entity transaction" is a transaction transferring control of an
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+organization, or merging organizations. If propagation of a covered work results
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+
+You may not impose any further restrictions on the exercise of the rights
+granted or affirmed under this License. For example, you may not impose a
+license fee, royalty, or other charge for exercise of rights granted under this
+License, and you may not initiate litigation (including a cross-claim or
+counterclaim in a lawsuit) alleging that any patent claim is infringed by
+making, using, selling, offering for sale, or importing the Program or any
+portion of it.
+
+11. Patents.
+
+A "contributor" is a copyright holder who authorizes use under this License of
+the Program or a work on which the Program is based. The work thus licensed is
+called the contributor's "contributor version".
+
+A contributor's "essential patent claims" are all patent claims owned or
+controlled by the contributor, whether already acquired or hereafter acquired,
+that would be infringed by some manner, permitted by this License, of making,
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+be infringed only as a consequence of further modification of the contributor
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+patent sublicenses in a manner consistent with the requirements of this License.
+
+Each contributor grants you a non-exclusive, worldwide, royalty-free patent
+license under the contributor's essential patent claims, to make, use, sell,
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+
+In the following three paragraphs, a "patent license" is any express agreement
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+To "grant" such a patent license to a party means to make such an agreement or
+commitment not to enforce a patent against the party.
+
+If you convey a covered work, knowingly relying on a patent license, and the
+Corresponding Source of the work is not available for anyone to copy, free of
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+Corresponding Source to be so available, or (2) arrange to deprive yourself of
+the benefit of the patent license for this particular work, or (3) arrange, in a
+manner consistent with the requirements of this License, to extend the patent
+license to downstream recipients. "Knowingly relying" means you have actual
+knowledge that, but for the patent license, your conveying the covered work in a
+country, or your recipient's use of the covered work in a country, would
+infringe one or more identifiable patents in that country that you have reason
+to believe are valid.
+
+If, pursuant to or in connection with a single transaction or arrangement, you
+convey, or propagate by procuring conveyance of, a covered work, and grant a
+patent license to some of the parties receiving the covered work authorizing
+them to use, propagate, modify or convey a specific copy of the covered work,
+then the patent license you grant is automatically extended to all recipients of
+the covered work and works based on it.
+
+A patent license is "discriminatory" if it does not include within the scope of
+its coverage, prohibits the exercise of, or is conditioned on the non-exercise
+of one or more of the rights that are specifically granted under this License.
+You may not convey a covered work if you are a party to an arrangement with a
+third party that is in the business of distributing software, under which you
+make payment to the third party based on the extent of your activity of
+conveying the work, and under which the third party grants, to any of the
+parties who would receive the covered work from you, a discriminatory patent
+license (a) in connection with copies of the covered work conveyed by you (or
+copies made from those copies), or (b) primarily for and in connection with
+specific products or compilations that contain the covered work, unless you
+entered into that arrangement, or that patent license was granted, prior to 28
+March 2007.
+
+Nothing in this License shall be construed as excluding or limiting any implied
+license or other defenses to infringement that may otherwise be available to you
+under applicable patent law.
+
+12. No Surrender of Others' Freedom.
+
+If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not excuse
+you from the conditions of this License. If you cannot convey a covered work so
+as to satisfy simultaneously your obligations under this License and any other
+pertinent obligations, then as a consequence you may not convey it at all. For
+example, if you agree to terms that obligate you to collect a royalty for
+further conveying from those to whom you convey the Program, the only way you
+could satisfy both those terms and this License would be to refrain entirely
+from conveying the Program.
+
+13. Use with the GNU Affero General Public License.
+
+Notwithstanding any other provision of this License, you have permission to link
+or combine any covered work with a work licensed under version 3 of the GNU
+Affero General Public License into a single combined work, and to convey the
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+General Public License, section 13, concerning interaction through a network
+will apply to the combination as such.
+
+14. Revised Versions of this License.
+
+The Free Software Foundation may publish revised and/or new versions of the GNU
+General Public License from time to time. Such new versions will be similar in
+spirit to the present version, but may differ in detail to address new problems
+or concerns.
+
+Each version is given a distinguishing version number. If the Program specifies
+that a certain numbered version of the GNU General Public License "or any later
+version" applies to it, you have the option of following the terms and
+conditions either of that numbered version or of any later version published by
+the Free Software Foundation. If the Program does not specify a version number
+of the GNU General Public License, you may choose any version ever published by
+the Free Software Foundation.
+
+If the Program specifies that a proxy can decide which future versions of the
+GNU General Public License can be used, that proxy's public statement of
+acceptance of a version permanently authorizes you to choose that version for
+the Program.
+
+Later license versions may give you additional or different permissions.
+However, no additional obligations are imposed on any author or copyright holder
+as a result of your choosing to follow a later version.
+
+15. Disclaimer of Warranty.
+
+THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.
+EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER
+PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER
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+QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE
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+
+16. Limitation of Liability.
+
+IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY
+COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS THE PROGRAM AS
+PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL,
+INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE
+THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED
+INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE
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+HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+
+17. Interpretation of Sections 15 and 16.
+
+If the disclaimer of warranty and limitation of liability provided above cannot
+be given local legal effect according to their terms, reviewing courts shall
+apply local law that most closely approximates an absolute waiver of all civil
+liability in connection with the Program, unless a warranty or assumption of
+liability accompanies a copy of the Program in return for a fee. END OF TERMS
+AND CONDITIONS
+
+How to Apply These Terms to Your New Programs
+
+If you develop a new program, and you want it to be of the greatest possible use
+to the public, the best way to achieve this is to make it free software which
+everyone can redistribute and change under these terms.
+
+To do so, attach the following notices to the program. It is safest to attach
+them to the start of each source file to most effectively state the exclusion of
+warranty; and each file should have at least the "copyright" line and a pointer
+to where the full notice is found.
+
+<one line to give the program's name and a brief idea of what it does.>
+
+Copyright (c) Singapore Government Agency 2020
+
+This program is free software: you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free Software
+Foundation, either version 3 of the License, or (at your option) any later
+version.
+
+This program is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program does terminal interaction, make it output a short notice like
+this when it starts in an interactive mode:
+
+<program> Copyright (c) Singapore Government Agency 2020
+
+This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+
+This is free software, and you are welcome to redistribute it under certain
+conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, your program's commands might be
+different; for a GUI interface, you would use an "about box".
+
+You should also get your employer (if you work as a programmer) or school, if
+any, to sign a "copyright disclaimer" for the program, if necessary. For more
+information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
+
+The GNU General Public License does not permit incorporating your program into
+proprietary programs. If your program is a subroutine library, you may consider
+it more useful to permit linking proprietary applications with the library. If
+this is what you want to do, use the GNU Lesser General Public License instead
+of this License. But first, please read <https://www.gnu.org/ licenses
+/why-not-lgpl.html>.
diff --git a/LICENSE.md b/LICENSE.md
deleted file mode 100644
index d2b2339..0000000
--- a/LICENSE.md
+++ /dev/null
@@ -1,595 +0,0 @@
-GNU General Public License
-==========================
-
-_Version 3, 29 June 2007_  
-_Copyright © 2007 Free Software Foundation, Inc. &lt;<http://fsf.org/>&gt;_
-
-Everyone is permitted to copy and distribute verbatim copies of this license
-document, but changing it is not allowed.
-
-## Preamble
-
-The GNU General Public License is a free, copyleft license for software and other
-kinds of works.
-
-The licenses for most software and other practical works are designed to take away
-your freedom to share and change the works. By contrast, the GNU General Public
-License is intended to guarantee your freedom to share and change all versions of a
-program--to make sure it remains free software for all its users. We, the Free
-Software Foundation, use the GNU General Public License for most of our software; it
-applies also to any other work released this way by its authors. You can apply it to
-your programs, too.
-
-When we speak of free software, we are referring to freedom, not price. Our General
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-For example, if you distribute copies of such a program, whether gratis or for a fee,
-you must pass on to the recipients the same freedoms that you received. You must make
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-
-Developers that use the GNU GPL protect your rights with two steps: **(1)** assert
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-requires that modified versions be marked as changed, so that their problems will not
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-
-Finally, every program is threatened constantly by software patents. States should
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-GPL assures that patents cannot be used to render the program non-free.
-
-The precise terms and conditions for copying, distribution and modification follow.
-
-## TERMS AND CONDITIONS
-
-### 0. Definitions
-
-“This License” refers to version 3 of the GNU General Public License.
-
-“Copyright” also means copyright-like laws that apply to other kinds of
-works, such as semiconductor masks.
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-“The Program” refers to any copyrightable work licensed under this
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-To “propagate” a work means to do anything with it that, without
-permission, would make you directly or secondarily liable for infringement under
-applicable copyright law, except executing it on a computer or modifying a private
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-making available to the public, and in some countries other activities as well.
-
-To “convey” a work means any kind of propagation that enables other
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-network, with no transfer of a copy, is not conveying.
-
-An interactive user interface displays “Appropriate Legal Notices” to the
-extent that it includes a convenient and prominently visible feature that **(1)**
-displays an appropriate copyright notice, and **(2)** tells the user that there is no
-warranty for the work (except to the extent that warranties are provided), that
-licensees may convey the work under this License, and how to view a copy of this
-License. If the interface presents a list of user commands or options, such as a
-menu, a prominent item in the list meets this criterion.
-
-### 1. Source Code
-
-The “source code” for a work means the preferred form of the work for
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-The Corresponding Source for a work in source code form is that same work.
-
-### 2. Basic Permissions
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-All rights granted under this License are granted for the term of copyright on the
-Program, and are irrevocable provided the stated conditions are met. This License
-explicitly affirms your unlimited permission to run the unmodified Program. The
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-You may make, run and propagate covered works that you do not convey, without
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-Conveying under any other circumstances is permitted solely under the conditions
-stated below. Sublicensing is not allowed; section 10 makes it unnecessary.
-
-### 3. Protecting Users' Legal Rights From Anti-Circumvention Law
-
-No covered work shall be deemed part of an effective technological measure under any
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-
-### 4. Conveying Verbatim Copies
-
-You may convey verbatim copies of the Program's source code as you receive it, in any
-medium, provided that you conspicuously and appropriately publish on each copy an
-appropriate copyright notice; keep intact all notices stating that this License and
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-
-You may charge any price or no price for each copy that you convey, and you may offer
-support or warranty protection for a fee.
-
-### 5. Conveying Modified Source Versions
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-* **a)** The work must carry prominent notices stating that you modified it, and giving a
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-* **c)** You must license the entire work, as a whole, under this License to anyone who
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-* **d)** If the work has interactive user interfaces, each must display Appropriate Legal
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-A compilation of a covered work with other separate and independent works, which are
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-
-### 6. Conveying Non-Source Forms
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-You may convey a covered work in object code form under the terms of sections 4 and
-5, provided that you also convey the machine-readable Corresponding Source under the
-terms of this License, in one of these ways:
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-* **a)** Convey the object code in, or embodied in, a physical product (including a
-physical distribution medium), accompanied by the Corresponding Source fixed on a
-durable physical medium customarily used for software interchange.
-* **b)** Convey the object code in, or embodied in, a physical product (including a
-physical distribution medium), accompanied by a written offer, valid for at least
-three years and valid for as long as you offer spare parts or customer support for
-that product model, to give anyone who possesses the object code either **(1)** a copy of
-the Corresponding Source for all the software in the product that is covered by this
-License, on a durable physical medium customarily used for software interchange, for
-a price no more than your reasonable cost of physically performing this conveying of
-source, or **(2)** access to copy the Corresponding Source from a network server at no
-charge.
-* **c)** Convey individual copies of the object code with a copy of the written offer to
-provide the Corresponding Source. This alternative is allowed only occasionally and
-noncommercially, and only if you received the object code with such an offer, in
-accord with subsection 6b.
-* **d)** Convey the object code by offering access from a designated place (gratis or for
-a charge), and offer equivalent access to the Corresponding Source in the same way
-through the same place at no further charge. You need not require recipients to copy
-the Corresponding Source along with the object code. If the place to copy the object
-code is a network server, the Corresponding Source may be on a different server
-(operated by you or a third party) that supports equivalent copying facilities,
-provided you maintain clear directions next to the object code saying where to find
-the Corresponding Source. Regardless of what server hosts the Corresponding Source,
-you remain obligated to ensure that it is available for as long as needed to satisfy
-these requirements.
-* **e)** Convey the object code using peer-to-peer transmission, provided you inform
-other peers where the object code and Corresponding Source of the work are being
-offered to the general public at no charge under subsection 6d.
-
-A separable portion of the object code, whose source code is excluded from the
-Corresponding Source as a System Library, need not be included in conveying the
-object code work.
-
-A “User Product” is either **(1)** a “consumer product”, which
-means any tangible personal property which is normally used for personal, family, or
-household purposes, or **(2)** anything designed or sold for incorporation into a
-dwelling. In determining whether a product is a consumer product, doubtful cases
-shall be resolved in favor of coverage. For a particular product received by a
-particular user, “normally used” refers to a typical or common use of
-that class of product, regardless of the status of the particular user or of the way
-in which the particular user actually uses, or expects or is expected to use, the
-product. A product is a consumer product regardless of whether the product has
-substantial commercial, industrial or non-consumer uses, unless such uses represent
-the only significant mode of use of the product.
-
-“Installation Information” for a User Product means any methods,
-procedures, authorization keys, or other information required to install and execute
-modified versions of a covered work in that User Product from a modified version of
-its Corresponding Source. The information must suffice to ensure that the continued
-functioning of the modified object code is in no case prevented or interfered with
-solely because modification has been made.
-
-If you convey an object code work under this section in, or with, or specifically for
-use in, a User Product, and the conveying occurs as part of a transaction in which
-the right of possession and use of the User Product is transferred to the recipient
-in perpetuity or for a fixed term (regardless of how the transaction is
-characterized), the Corresponding Source conveyed under this section must be
-accompanied by the Installation Information. But this requirement does not apply if
-neither you nor any third party retains the ability to install modified object code
-on the User Product (for example, the work has been installed in ROM).
-
-The requirement to provide Installation Information does not include a requirement to
-continue to provide support service, warranty, or updates for a work that has been
-modified or installed by the recipient, or for the User Product in which it has been
-modified or installed. Access to a network may be denied when the modification itself
-materially and adversely affects the operation of the network or violates the rules
-and protocols for communication across the network.
-
-Corresponding Source conveyed, and Installation Information provided, in accord with
-this section must be in a format that is publicly documented (and with an
-implementation available to the public in source code form), and must require no
-special password or key for unpacking, reading or copying.
-
-### 7. Additional Terms
-
-“Additional permissions” are terms that supplement the terms of this
-License by making exceptions from one or more of its conditions. Additional
-permissions that are applicable to the entire Program shall be treated as though they
-were included in this License, to the extent that they are valid under applicable
-law. If additional permissions apply only to part of the Program, that part may be
-used separately under those permissions, but the entire Program remains governed by
-this License without regard to the additional permissions.
-
-When you convey a copy of a covered work, you may at your option remove any
-additional permissions from that copy, or from any part of it. (Additional
-permissions may be written to require their own removal in certain cases when you
-modify the work.) You may place additional permissions on material, added by you to a
-covered work, for which you have or can give appropriate copyright permission.
-
-Notwithstanding any other provision of this License, for material you add to a
-covered work, you may (if authorized by the copyright holders of that material)
-supplement the terms of this License with terms:
-
-* **a)** Disclaiming warranty or limiting liability differently from the terms of
-sections 15 and 16 of this License; or
-* **b)** Requiring preservation of specified reasonable legal notices or author
-attributions in that material or in the Appropriate Legal Notices displayed by works
-containing it; or
-* **c)** Prohibiting misrepresentation of the origin of that material, or requiring that
-modified versions of such material be marked in reasonable ways as different from the
-original version; or
-* **d)** Limiting the use for publicity purposes of names of licensors or authors of the
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-* **e)** Declining to grant rights under trademark law for use of some trade names,
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-* **f)** Requiring indemnification of licensors and authors of that material by anyone
-who conveys the material (or modified versions of it) with contractual assumptions of
-liability to the recipient, for any liability that these contractual assumptions
-directly impose on those licensors and authors.
-
-All other non-permissive additional terms are considered “further
-restrictions” within the meaning of section 10. If the Program as you received
-it, or any part of it, contains a notice stating that it is governed by this License
-along with a term that is a further restriction, you may remove that term. If a
-license document contains a further restriction but permits relicensing or conveying
-under this License, you may add to a covered work material governed by the terms of
-that license document, provided that the further restriction does not survive such
-relicensing or conveying.
-
-If you add terms to a covered work in accord with this section, you must place, in
-the relevant source files, a statement of the additional terms that apply to those
-files, or a notice indicating where to find the applicable terms.
-
-Additional terms, permissive or non-permissive, may be stated in the form of a
-separately written license, or stated as exceptions; the above requirements apply
-either way.
-
-### 8. Termination
-
-You may not propagate or modify a covered work except as expressly provided under
-this License. Any attempt otherwise to propagate or modify it is void, and will
-automatically terminate your rights under this License (including any patent licenses
-granted under the third paragraph of section 11).
-
-However, if you cease all violation of this License, then your license from a
-particular copyright holder is reinstated **(a)** provisionally, unless and until the
-copyright holder explicitly and finally terminates your license, and **(b)** permanently,
-if the copyright holder fails to notify you of the violation by some reasonable means
-prior to 60 days after the cessation.
-
-Moreover, your license from a particular copyright holder is reinstated permanently
-if the copyright holder notifies you of the violation by some reasonable means, this
-is the first time you have received notice of violation of this License (for any
-work) from that copyright holder, and you cure the violation prior to 30 days after
-your receipt of the notice.
-
-Termination of your rights under this section does not terminate the licenses of
-parties who have received copies or rights from you under this License. If your
-rights have been terminated and not permanently reinstated, you do not qualify to
-receive new licenses for the same material under section 10.
-
-### 9. Acceptance Not Required for Having Copies
-
-You are not required to accept this License in order to receive or run a copy of the
-Program. Ancillary propagation of a covered work occurring solely as a consequence of
-using peer-to-peer transmission to receive a copy likewise does not require
-acceptance. However, nothing other than this License grants you permission to
-propagate or modify any covered work. These actions infringe copyright if you do not
-accept this License. Therefore, by modifying or propagating a covered work, you
-indicate your acceptance of this License to do so.
-
-### 10. Automatic Licensing of Downstream Recipients
-
-Each time you convey a covered work, the recipient automatically receives a license
-from the original licensors, to run, modify and propagate that work, subject to this
-License. You are not responsible for enforcing compliance by third parties with this
-License.
-
-An “entity transaction” is a transaction transferring control of an
-organization, or substantially all assets of one, or subdividing an organization, or
-merging organizations. If propagation of a covered work results from an entity
-transaction, each party to that transaction who receives a copy of the work also
-receives whatever licenses to the work the party's predecessor in interest had or
-could give under the previous paragraph, plus a right to possession of the
-Corresponding Source of the work from the predecessor in interest, if the predecessor
-has it or can get it with reasonable efforts.
-
-You may not impose any further restrictions on the exercise of the rights granted or
-affirmed under this License. For example, you may not impose a license fee, royalty,
-or other charge for exercise of rights granted under this License, and you may not
-initiate litigation (including a cross-claim or counterclaim in a lawsuit) alleging
-that any patent claim is infringed by making, using, selling, offering for sale, or
-importing the Program or any portion of it.
-
-### 11. Patents
-
-A “contributor” is a copyright holder who authorizes use under this
-License of the Program or a work on which the Program is based. The work thus
-licensed is called the contributor's “contributor version”.
-
-A contributor's “essential patent claims” are all patent claims owned or
-controlled by the contributor, whether already acquired or hereafter acquired, that
-would be infringed by some manner, permitted by this License, of making, using, or
-selling its contributor version, but do not include claims that would be infringed
-only as a consequence of further modification of the contributor version. For
-purposes of this definition, “control” includes the right to grant patent
-sublicenses in a manner consistent with the requirements of this License.
-
-Each contributor grants you a non-exclusive, worldwide, royalty-free patent license
-under the contributor's essential patent claims, to make, use, sell, offer for sale,
-import and otherwise run, modify and propagate the contents of its contributor
-version.
-
-In the following three paragraphs, a “patent license” is any express
-agreement or commitment, however denominated, not to enforce a patent (such as an
-express permission to practice a patent or covenant not to sue for patent
-infringement). To “grant” such a patent license to a party means to make
-such an agreement or commitment not to enforce a patent against the party.
-
-If you convey a covered work, knowingly relying on a patent license, and the
-Corresponding Source of the work is not available for anyone to copy, free of charge
-and under the terms of this License, through a publicly available network server or
-other readily accessible means, then you must either **(1)** cause the Corresponding
-Source to be so available, or **(2)** arrange to deprive yourself of the benefit of the
-patent license for this particular work, or **(3)** arrange, in a manner consistent with
-the requirements of this License, to extend the patent license to downstream
-recipients. “Knowingly relying” means you have actual knowledge that, but
-for the patent license, your conveying the covered work in a country, or your
-recipient's use of the covered work in a country, would infringe one or more
-identifiable patents in that country that you have reason to believe are valid.
-
-If, pursuant to or in connection with a single transaction or arrangement, you
-convey, or propagate by procuring conveyance of, a covered work, and grant a patent
-license to some of the parties receiving the covered work authorizing them to use,
-propagate, modify or convey a specific copy of the covered work, then the patent
-license you grant is automatically extended to all recipients of the covered work and
-works based on it.
-
-A patent license is “discriminatory” if it does not include within the
-scope of its coverage, prohibits the exercise of, or is conditioned on the
-non-exercise of one or more of the rights that are specifically granted under this
-License. You may not convey a covered work if you are a party to an arrangement with
-a third party that is in the business of distributing software, under which you make
-payment to the third party based on the extent of your activity of conveying the
-work, and under which the third party grants, to any of the parties who would receive
-the covered work from you, a discriminatory patent license **(a)** in connection with
-copies of the covered work conveyed by you (or copies made from those copies), or **(b)**
-primarily for and in connection with specific products or compilations that contain
-the covered work, unless you entered into that arrangement, or that patent license
-was granted, prior to 28 March 2007.
-
-Nothing in this License shall be construed as excluding or limiting any implied
-license or other defenses to infringement that may otherwise be available to you
-under applicable patent law.
-
-### 12. No Surrender of Others' Freedom
-
-If conditions are imposed on you (whether by court order, agreement or otherwise)
-that contradict the conditions of this License, they do not excuse you from the
-conditions of this License. If you cannot convey a covered work so as to satisfy
-simultaneously your obligations under this License and any other pertinent
-obligations, then as a consequence you may not convey it at all. For example, if you
-agree to terms that obligate you to collect a royalty for further conveying from
-those to whom you convey the Program, the only way you could satisfy both those terms
-and this License would be to refrain entirely from conveying the Program.
-
-### 13. Use with the GNU Affero General Public License
-
-Notwithstanding any other provision of this License, you have permission to link or
-combine any covered work with a work licensed under version 3 of the GNU Affero
-General Public License into a single combined work, and to convey the resulting work.
-The terms of this License will continue to apply to the part which is the covered
-work, but the special requirements of the GNU Affero General Public License, section
-13, concerning interaction through a network will apply to the combination as such.
-
-### 14. Revised Versions of this License
-
-The Free Software Foundation may publish revised and/or new versions of the GNU
-General Public License from time to time. Such new versions will be similar in spirit
-to the present version, but may differ in detail to address new problems or concerns.
-
-Each version is given a distinguishing version number. If the Program specifies that
-a certain numbered version of the GNU General Public License “or any later
-version” applies to it, you have the option of following the terms and
-conditions either of that numbered version or of any later version published by the
-Free Software Foundation. If the Program does not specify a version number of the GNU
-General Public License, you may choose any version ever published by the Free
-Software Foundation.
-
-If the Program specifies that a proxy can decide which future versions of the GNU
-General Public License can be used, that proxy's public statement of acceptance of a
-version permanently authorizes you to choose that version for the Program.
-
-Later license versions may give you additional or different permissions. However, no
-additional obligations are imposed on any author or copyright holder as a result of
-your choosing to follow a later version.
-
-### 15. Disclaimer of Warranty
-
-THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.
-EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
-PROVIDE THE PROGRAM “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER
-EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
-MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE
-QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE
-DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
-
-### 16. Limitation of Liability
-
-IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY
-COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS THE PROGRAM AS
-PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL,
-INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE
-PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE
-OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE
-WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
-POSSIBILITY OF SUCH DAMAGES.
-
-### 17. Interpretation of Sections 15 and 16
-
-If the disclaimer of warranty and limitation of liability provided above cannot be
-given local legal effect according to their terms, reviewing courts shall apply local
-law that most closely approximates an absolute waiver of all civil liability in
-connection with the Program, unless a warranty or assumption of liability accompanies
-a copy of the Program in return for a fee.
-
-_END OF TERMS AND CONDITIONS_
-
-## How to Apply These Terms to Your New Programs
-
-If you develop a new program, and you want it to be of the greatest possible use to
-the public, the best way to achieve this is to make it free software which everyone
-can redistribute and change under these terms.
-
-To do so, attach the following notices to the program. It is safest to attach them
-to the start of each source file to most effectively state the exclusion of warranty;
-and each file should have at least the “copyright” line and a pointer to
-where the full notice is found.
-
-    <one line to give the program's name and a brief idea of what it does.>
-    Copyright (C) <year>  <name of author>
-
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation, either version 3 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-Also add information on how to contact you by electronic and paper mail.
-
-If the program does terminal interaction, make it output a short notice like this
-when it starts in an interactive mode:
-
-    <program>  Copyright (C) <year>  <name of author>
-    This program comes with ABSOLUTELY NO WARRANTY; for details type 'show w'.
-    This is free software, and you are welcome to redistribute it
-    under certain conditions; type 'show c' for details.
-
-The hypothetical commands `show w` and `show c` should show the appropriate parts of
-the General Public License. Of course, your program's commands might be different;
-for a GUI interface, you would use an “about box”.
-
-You should also get your employer (if you work as a programmer) or school, if any, to
-sign a “copyright disclaimer” for the program, if necessary. For more
-information on this, and how to apply and follow the GNU GPL, see
-&lt;<http://www.gnu.org/licenses/>&gt;.
-
-The GNU General Public License does not permit incorporating your program into
-proprietary programs. If your program is a subroutine library, you may consider it
-more useful to permit linking proprietary applications with the library. If this is
-what you want to do, use the GNU Lesser General Public License instead of this
-License. But first, please read
-&lt;<http://www.gnu.org/philosophy/why-not-lgpl.html>&gt;.
\ No newline at end of file
diff --git a/functions/LICENSE b/functions/LICENSE
new file mode 100644
index 0000000..aff43e5
--- /dev/null
+++ b/functions/LICENSE
@@ -0,0 +1,632 @@
+Copyright (c) Singapore Government Agency 2020.
+Node module: functions
+This project is licensed under the GNU General Public License v3.0 or later, full text below.
+
+--------
+
+GNU General Public License v3.0 or later
+
+GNU GENERAL PUBLIC LICENSE
+
+Version 3, 29 June 2007
+
+Copyright © 2007 Free Software Foundation, Inc. <https://fsf.org/>
+
+Everyone is permitted to copy and distribute verbatim copies of this license
+document, but changing it is not allowed.
+
+Preamble
+
+The GNU General Public License is a free, copyleft license for software and
+other kinds of works.
+
+The licenses for most software and other practical works are designed to take
+away your freedom to share and change the works. By contrast, the GNU General
+Public License is intended to guarantee your freedom to share and change all
+versions of a program--to make sure it remains free software for all its users.
+We, the Free Software Foundation, use the GNU General Public License for most of
+our software; it applies also to any other work released this way by its
+authors. You can apply it to your programs, too.
+
+When we speak of free software, we are referring to freedom, not price. Our
+General Public Licenses are designed to make sure that you have the freedom to
+distribute copies of free software (and charge for them if you wish), that you
+receive source code or can get it if you want it, that you can change the
+software or use pieces of it in new free programs, and that you know you can do
+these things.
+
+To protect your rights, we need to prevent others from denying you these rights
+or asking you to surrender the rights. Therefore, you have certain
+responsibilities if you distribute copies of the software, or if you modify it:
+responsibilities to respect the freedom of others.
+
+For example, if you distribute copies of such a program, whether gratis or for a
+fee, you must pass on to the recipients the same freedoms that you received. You
+must make sure that they, too, receive or can get the source code. And you must
+show them these terms so they know their rights.
+
+Developers that use the GNU GPL protect your rights with two steps: (1) assert
+copyright on the software, and (2) offer you this License giving you legal
+permission to copy, distribute and/or modify it.
+
+For the developers' and authors' protection, the GPL clearly explains that there
+is no warranty for this free software. For both users' and authors' sake, the
+GPL requires that modified versions be marked as changed, so that their problems
+will not be attributed erroneously to authors of previous versions.
+
+Some devices are designed to deny users access to install or run modified
+versions of the software inside them, although the manufacturer can do so. This
+is fundamentally incompatible with the aim of protecting users' freedom to
+change the software. The systematic pattern of such abuse occurs in the area of
+products for individuals to use, which is precisely where it is most
+unacceptable. Therefore, we have designed this version of the GPL to prohibit
+the practice for those products. If such problems arise substantially in other
+domains, we stand ready to extend this provision to those domains in future
+versions of the GPL, as needed to protect the freedom of users.
+
+Finally, every program is threatened constantly by software patents. States
+should not allow patents to restrict development and use of software on
+general-purpose computers, but in those that do, we wish to avoid the special
+danger that patents applied to a free program could make it effectively
+proprietary. To prevent this, the GPL assures that patents cannot be used to
+render the program non-free.
+
+The precise terms and conditions for copying, distribution and modification
+follow.
+
+TERMS AND CONDITIONS
+
+0. Definitions.
+
+"This License" refers to version 3 of the GNU General Public License.
+
+"Copyright" also means copyright-like laws that apply to other kinds of works,
+such as semiconductor masks.
+
+"The Program" refers to any copyrightable work licensed under this License. Each
+licensee is addressed as "you". "Licensees" and "recipients" may be individuals
+or organizations.
+
+To "modify" a work means to copy from or adapt all or part of the work in a
+fashion requiring copyright permission, other than the making of an exact copy.
+The resulting work is called a "modified version" of the earlier work or a work
+"based on" the earlier work.
+
+A "covered work" means either the unmodified Program or a work based on the
+Program.
+
+To "propagate" a work means to do anything with it that, without permission,
+would make you directly or secondarily liable for infringement under applicable
+copyright law, except executing it on a computer or modifying a private copy.
+Propagation includes copying, distribution (with or without modification),
+making available to the public, and in some countries other activities as well.
+
+To "convey" a work means any kind of propagation that enables other parties to
+make or receive copies. Mere interaction with a user through a computer network,
+with no transfer of a copy, is not conveying.
+
+An interactive user interface displays "Appropriate Legal Notices" to the extent
+that it includes a convenient and prominently visible feature that (1) displays
+an appropriate copyright notice, and (2) tells the user that there is no
+warranty for the work (except to the extent that warranties are provided), that
+licensees may convey the work under this License, and how to view a copy of this
+License. If the interface presents a list of user commands or options, such as a
+menu, a prominent item in the list meets this criterion.
+
+1. Source Code.
+
+The "source code" for a work means the preferred form of the work for making
+modifications to it. "Object code" means any non-source form of a work.
+
+A "Standard Interface" means an interface that either is an official standard
+defined by a recognized standards body, or, in the case of interfaces specified
+for a particular programming language, one that is widely used among developers
+working in that language.
+
+The "System Libraries" of an executable work include anything, other than the
+work as a whole, that (a) is included in the normal form of packaging a Major
+Component, but which is not part of that Major Component, and (b) serves only to
+enable use of the work with that Major Component, or to implement a Standard
+Interface for which an implementation is available to the public in source code
+form. A "Major Component", in this context, means a major essential component
+(kernel, window system, and so on) of the specific operating system (if any) on
+which the executable work runs, or a compiler used to produce the work, or an
+object code interpreter used to run it.
+
+The "Corresponding Source" for a work in object code form means all the source
+code needed to generate, install, and (for an executable work) run the object
+code and to modify the work, including scripts to control those activities.
+However, it does not include the work's System Libraries, or general-purpose
+tools or generally available free programs which are used unmodified in
+performing those activities but which are not part of the work. For example,
+Corresponding Source includes interface definition files associated with source
+files for the work, and the source code for shared libraries and dynamically
+linked subprograms that the work is specifically designed to require, such as by
+intimate data communication or control flow between those subprograms and other
+parts of the work.
+
+The Corresponding Source need not include anything that users can regenerate
+automatically from other parts of the Corresponding Source.
+
+The Corresponding Source for a work in source code form is that same work.
+
+2. Basic Permissions.
+
+All rights granted under this License are granted for the term of copyright on
+the Program, and are irrevocable provided the stated conditions are met. This
+License explicitly affirms your unlimited permission to run the unmodified
+Program. The output from running a covered work is covered by this License only
+if the output, given its content, constitutes a covered work. This License
+acknowledges your rights of fair use or other equivalent, as provided by
+copyright law.
+
+You may make, run and propagate covered works that you do not convey, without
+conditions so long as your license otherwise remains in force. You may convey
+covered works to others for the sole purpose of having them make modifications
+exclusively for you, or provide you with facilities for running those works,
+provided that you comply with the terms of this License in conveying all
+material for which you do not control copyright. Those thus making or running
+the covered works for you must do so exclusively on your behalf, under your
+direction and control, on terms that prohibit them from making any copies of
+your copyrighted material outside their relationship with you.
+
+Conveying under any other circumstances is permitted solely under the conditions
+stated below. Sublicensing is not allowed; section 10 makes it unnecessary.
+
+3. Protecting Users' Legal Rights From Anti-Circumvention Law.
+
+No covered work shall be deemed part of an effective technological measure under
+any applicable law fulfilling obligations under article 11 of the WIPO copyright
+treaty adopted on 20 December 1996, or similar laws prohibiting or restricting
+circumvention of such measures.
+
+When you convey a covered work, you waive any legal power to forbid
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+/why-not-lgpl.html>.

From 19a758d50096a3ac2e3de5352ae4484a76326b6f Mon Sep 17 00:00:00 2001
From: Rifa Achrinza <25147899+achrinza@users.noreply.github.com>
Date: Sat, 18 Apr 2020 23:31:36 +0800
Subject: [PATCH 3/3] chore: adds license section

Signed-off-by: Rifa Achrinza <25147899+achrinza@users.noreply.github.com>
---
 README.md | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/README.md b/README.md
index a3068f0..844afb9 100644
--- a/README.md
+++ b/README.md
@@ -211,3 +211,7 @@ firebase deploy --only functions
 Once deployed, view the Functions in [Firebase console](https://console.firebase.google.com/) or at [GCP Cloud Functions](https://console.cloud.google.com/functions/list).
 
 If you have set up either the [Android app](https://github.com/opentrace-community/opentrace-android) or [iOS app](https://github.com/opentrace-community/opentrace-ios), you can test the functions by opening the app, going through the registration and verifying that the app displays a pin code in the Upload page.
+
+## License
+
+[GPL 3.0](LICENSE0)