Contest Details

Prize Pool

High - 100xp
Medium - 20xp
Low - 2xp
Starts: Noon UTC Wednesday, Oct 25 2023
Ends: Noon UTC Wednesday, Nov 01 2023

Stats

nSLOC: 143
Complexity Score: 111

Puppy Raffle

This project is to enter a raffle to win a cute dog NFT. The protocol should do the following:

Call the enterRaffle function with the following parameters:
1. address[] participants: A list of addresses that enter. You can use this to enter yourself multiple times, or yourself and a group of your friends.
Duplicate addresses are not allowed
Users are allowed to get a refund of their ticket & value if they call the refund function
Every X seconds, the raffle will be able to draw a winner and be minted a random puppy
The owner of the protocol will set a feeAddress to take a cut of the value, and the rest of the funds will be sent to the winner of the puppy.

Contest Details
- Prize Pool
- Stats
Puppy Raffle
Getting Started
- Requirements
- Quickstart
  - Optional Gitpod
Usage
- Testing
  - Test Coverage
Audit Scope Details
- Compatibilities
Roles
Known Issues

Getting Started

Requirements

git
- You'll know you did it right if you can run git --version and you see a response like git version x.x.x
foundry
- You'll know you did it right if you can run forge --version and you see a response like forge 0.2.0 (816e00b 2023-03-16T00:05:26.396218Z)

Quickstart

git clone https://github.com/Cyfrin/2023-10-Puppy-Raffle
cd 2023-10-Puppy-Raffle
make

Optional Gitpod

If you can't or don't want to run and install locally, you can work with this repo in Gitpod. If you do this, you can skip the clone this repo part.

Usage

Testing

forge test

Test Coverage

forge coverage

and for coverage based testing:

forge coverage --report debug

Audit Scope Details

Commit Hash: 22bbbb2c47f3f2b78c1b134590baf41383fd354f
In Scope:

./src/
└── PuppyRaffle.sol

Compatibilities

Solc Version: 0.7.6
Chain(s) to deploy contract to: Ethereum

Roles

Owner - Deployer of the protocol, has the power to change the wallet address to which fees are sent through the changeFeeAddress function. Player - Participant of the raffle, has the power to enter the raffle with the enterRaffle function and refund value through refund function.

Known Issues

None

Rank	Username
1	Z ZedBlockchain	742	7 (0)	2 (0)	1
2	C Ciara	666	6 (0)	3 (0)	3
3	0 0xethanol	650	6 (0)	2 (0)	1
4	n nisedo	642	6 (0)	2 (0)	1
5	E EmanHerawy	642	6 (0)	0 (0)	1
6	H Hueber	642	6 (0)	2 (0)	1
7	e ezerez	622	6 (0)	1 (0)	1
8	I InAllHonesty	553	5 (0)	2 (0)	2
9	s silvana	542	5 (0)	2 (0)	1
10	c cem	540	5 (0)	2 (0)	0
11	a asimaranov	540	5 (0)	2 (0)	0
12	b blocktivist	540	5 (0)	2 (0)	0
13	R Ryonen	530	5 (0)	1 (0)	5
14	L Louis	524	5 (0)	1 (0)	2
15	w wallebach	522	5 (0)	1 (0)	1
16	i innertia	522	5 (0)	1 (0)	1
17	0 0xSwahili	520	5 (0)	1 (0)	0
18	s sobieski	520	5 (0)	1 (0)	0
19	N Nocturnus	520	5 (0)	1 (0)	0
20	p pacelliv	502	5 (0)	0 (0)	1
21	L Leogold	500	5 (0)	0 (0)	0
22	h happyformerlawyer	462	4 (0)	3 (0)	1
23	M Marcologonz	460	4 (0)	3 (0)	0
24	0 0xspryon	445	4 (0)	2 (0)	2
25	p priker	442	4 (0)	2 (0)	1
26	r remedcu	442	4 (0)	2 (0)	1
27	0 0xouooo	440	4 (0)	2 (0)	0
28	L Luka	440	4 (0)	2 (0)	0
29	z zxarcs	440	4 (0)	2 (0)	0
30	s syahirAmali	440	4 (0)	2 (0)	0
31	B Bube	440	4 (0)	2 (0)	0
32	a ararara	426	4 (0)	1 (0)	3
33	K KrisRenZo	426	4 (0)	1 (0)	3
34	a anarcheuz	422	4 (0)	1 (0)	1
35	D DenTonylifer	420	4 (0)	1 (0)	0
36	D Davide	420	4 (0)	1 (0)	0
37	P PratRed	420	4 (0)	1 (0)	0
38	K Kose	420	4 (0)	1 (0)	0
39	0 0x0bserver	420	4 (0)	1 (0)	0
40	T Timenov	404	4 (0)	0 (0)	2
41	n naman1729	402	4 (0)	0 (0)	1
42	s sandman	400	4 (0)	0 (0)	0
43	i iLoveMiaGoth	400	4 (0)	0 (0)	0
44	e efecarranza	362	3 (0)	1 (0)	1
45	z zhuying	362	3 (0)	3 (0)	1
46	C Chandr	362	3 (0)	3 (0)	1
47	M Maroutis	360	3 (0)	1 (0)	0
48	a abhishekthakur	348	3 (0)	2 (0)	0
49	s shikhar229169	342	3 (0)	2 (0)	1
50	m merlinboii	342	3 (0)	2 (0)	1
51	E Eric	342	3 (0)	2 (0)	1
52	0 0x6a70	340	3 (0)	2 (0)	0
53	p printfjoby	340	3 (0)	2 (0)	0
54	z zadev	340	3 (0)	2 (0)	0
55	0 0xtekt	340	3 (0)	2 (0)	0
56	0 0xsagetony	340	3 (0)	2 (0)	0
57	h harpaljadeja	340	3 (0)	2 (0)	0
58	y y0ng0p3	324	3 (0)	1 (0)	2
59	n n0kto	324	3 (0)	1 (0)	2
60	E Equious	322	3 (0)	1 (0)	1
61	a aethrouzz	322	3 (0)	1 (0)	1
62	i ironcladmerc	322	3 (0)	1 (0)	1
63	0 00decree	322	3 (0)	1 (0)	1
64	r rapstyle	320	3 (0)	1 (0)	0
65	T ThermoHash	320	3 (0)	1 (0)	0
66	n n4thedev01	320	3 (0)	1 (0)	0
67	I IvanFitro	320	3 (0)	1 (0)	0
68	k kumar	320	3 (0)	1 (0)	0
69	c cromewar	320	3 (0)	1 (0)	0
70	t tinotendajoe01	320	3 (0)	1 (0)	0
71	C Charalab0ts	320	2 (0)	2 (0)	0
72	M MaanVader	320	3 (0)	1 (0)	0
73	s sh0lt0	320	3 (0)	1 (0)	0
74	z zuhaibmohd	320	3 (0)	1 (0)	0
75	C Coffee	302	3 (0)	0 (0)	1
76	H Heba	302	3 (0)	0 (0)	1
77	D Dutch	302	3 (0)	0 (0)	1
78	W WangSecurity	300	3 (0)	0 (0)	0
79	0 0xbjorn	300	3 (0)	0 (0)	0
80	0 0xAraj	300	3 (0)	0 (0)	0
81	0 0xWalle	300	3 (0)	0 (0)	0
82	e eLSeR17	300	3 (0)	0 (0)	0
83	A Aarambh	300	3 (0)	0 (0)	0
84	b benbo	300	3 (0)	0 (0)	0
85	0 0xlemon	300	3 (0)	0 (0)	0
86	i ironside	300	3 (0)	0 (0)	0
87	r ret2basic	240	2 (0)	2 (0)	0
88	a alymurtazamemon	240	2 (0)	2 (0)	0
89	d dcheng	240	2 (0)	2 (0)	0
90	u uint256vieet	227	2 (0)	1 (0)	3
91	0 0xSCSamurai	225	2 (0)	1 (0)	2
92	0 0x4non	224	2 (0)	1 (0)	2
93	A Awacs	224	2 (0)	1 (0)	2
94	K KiteWeb3	222	2 (0)	1 (0)	1
95	C C0D30	222	2 (0)	1 (0)	1
96	O Osora9	222	2 (0)	1 (0)	1
97	E EchoSpr	222	2 (0)	1 (0)	1
98	f funkornaut	220	2 (0)	1 (0)	0
99	z zach030	220	2 (0)	1 (0)	0
100	i intellygentle	220	2 (0)	1 (0)	0

First Flight #2

First Flight #2: Puppy Raffle

Contest Details

Prize Pool

Stats

Puppy Raffle

Getting Started

Requirements

Quickstart

Optional Gitpod

Usage

Testing

Test Coverage

Audit Scope Details

Compatibilities

Roles

Known Issues

Leaderboard

Findings

Potential Front-Running Attac...

Overflow/Underflow vulnerabil...

Typecasting from uint256 to u...

`PuppyRaffle::refund` replace...

Randomness can be gamed

Reentrancy Vulnerability In r...

Potential Loss of Funds Durin...

Impossible to win raffle if t...

Slightly increasing puppyraff...

`PuppyRaffle: enterRaffle` Us...

Fee should be 'totalAmountCol...

Total entrance fee can overfl...

PuppyRaffle::selectWinner() -...

Participants are mislead by t...

Missing `WinnerSelected`/`Fee...

Ambiguous index returned from...