trustwallet-assets/Dangerfile

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require 'find'
require 'image_size'
require 'json-schema'
blockchains_folder = './blockchains'
allowed_extensions = ['png', 'json']
allowed_file_names = ['info', 'list', 'logo', 'whitelist', 'blacklist']
maxAssetLogoSizeInKilobyte = 100
minLogoWidth = 64
minLogoHeight = 64
maxLogoWidth = 512
maxLogoHeight = 512
# Failures
# Do not allow files in this directory
Dir.foreach(blockchains_folder) \
.map { |x| File.expand_path("#{blockchains_folder}/#{x}") } \
.select { |x| File.file?(x) }
.map { |x|
fail("Not allowed to have files inside blockchains folder itself. You have to add them inside specific blockchain folder as blockchain/ethereum or blockchain/binance for file: " + x)
}
Find.find(blockchains_folder) do |file|
file_extension = File.extname(file).delete('.')
file_name = File.basename(file, File.extname(file))
# Skip if directory
if File.directory?(file)
next
end
if !allowed_extensions.include? file_extension
fail("Extension not allowed for file: " + file)
end
if !allowed_file_names.include? file_name
fail("Filename not allowed for file: " + file)
end
# Validate JSON content
if file_extension == 'json'
value = nil
begin
value = JSON.parse(File.open(file).read)
rescue JSON::ParserError, TypeError => e
fail("Wrong JSON content in file: " + file)
end
# Validate info.json
if file_name == 'info'
schema = {
"type": "object",
"required": ["name", "website", "short_description", "explorer"],
"properties": {
"name": {"type": "string"},
"website": {"type": "string"},
"short_description": {"type": "string"},
"explorer": {"type": "string"}
}
}
errors = JSON::Validator.fully_validate(schema, value)
errors.each { |error| message("#{error} in file #{file}") }
end
# Validate list.json for validators
if file_name == 'list'
schema = {
"type": "array",
"items": {
"properties": {
"id": { "type": "string" },
"name": { "type": "string" },
"description": { "type": "string" },
"website": { "type": "string" }
},
"required": ["id", "name", "description", "website"]
}
}
errors = JSON::Validator.fully_validate(schema, value)
errors.each { |error| message("#{error} in file #{file}") }
end
# Validate whitelist, blacklist files
if file_name == 'whitelist' || file_name == 'blacklist'
schema = {
"type": "array",
"items": {
"type": "string"
}
}
errors = JSON::Validator.fully_validate(schema, value)
errors.each { |error| message("#{error} in file #{file}") }
end
end
# Validate images
if file_extension == 'png'
image_size = ImageSize.path(file)
if image_size.width > maxLogoWidth || image_size.height > maxLogoHeight
fail("Image width or height is higher than 512px for file: " + file)
end
if image_size.format == 'png'
fail("Image should be PNG for file: " + file)
end
# Make sure file size only 100kb
if File.size(file).to_f / 1024 > maxAssetLogoSizeInKilobyte
fail("Image should less than 100kb for file: " + file)
end
end
end