homebrew-core/Formula/dnscrypt-proxy.rb
2016-09-28 23:41:56 -04:00

141 lines
4.9 KiB
Ruby

class DnscryptProxy < Formula
desc "Secure communications between a client and a DNS resolver"
homepage "https://dnscrypt.org"
url "https://github.com/jedisct1/dnscrypt-proxy/releases/download/1.7.0/dnscrypt-proxy-1.7.0.tar.bz2"
sha256 "1daf77df9092491ea0b5176ec4b170f7b0645f97b62d1a50412a960656b482e3"
bottle do
sha256 "67b062700838260b4912212c128e5c832741f2564b03f6c0bfad697363583b30" => :sierra
sha256 "6823eef358616722da3a931ee4af2efa77d76b99345b7bb7de98f7cfd9ac076f" => :el_capitan
sha256 "2342b453a35d9ae1d272f2542f3d654be3b82d1594f250d8b97293196186de6f" => :yosemite
sha256 "6f0e548b4ef064981611673af052fdf11132f50b7d71be6bf48728016297a876" => :mavericks
end
head do
url "https://github.com/jedisct1/dnscrypt-proxy.git"
depends_on "autoconf" => :build
depends_on "automake" => :build
depends_on "libtool" => :build
end
option "with-plugins", "Support plugins and install example plugins."
deprecated_option "plugins" => "with-plugins"
depends_on "libsodium"
depends_on "minisign" => :recommended
def install
system "autoreconf", "-if" if build.head?
args = %W[--disable-dependency-tracking --prefix=#{prefix}]
if build.with? "plugins"
args << "--enable-plugins"
args << "--enable-relaxed-plugins-permissions"
args << "--enable-plugins-root"
end
system "./configure", *args
system "make", "install"
if build.with? "minisign"
(bin/"dnscrypt-update-resolvers").write <<-EOS.undent
#!/bin/sh
RESOLVERS_UPDATES_BASE_URL=https://download.dnscrypt.org/dnscrypt-proxy
RESOLVERS_LIST_BASE_DIR=#{pkgshare}
RESOLVERS_LIST_PUBLIC_KEY="RWQf6LRCGA9i53mlYecO4IzT51TGPpvWucNSCh1CBM0QTaLn73Y7GFO3"
curl -L --max-redirs 5 -4 -m 30 --connect-timeout 30 -s \
"${RESOLVERS_UPDATES_BASE_URL}/dnscrypt-resolvers.csv" > \
"${RESOLVERS_LIST_BASE_DIR}/dnscrypt-resolvers.csv.tmp" && \
curl -L --max-redirs 5 -4 -m 30 --connect-timeout 30 -s \
"${RESOLVERS_UPDATES_BASE_URL}/dnscrypt-resolvers.csv.minisig" > \
"${RESOLVERS_LIST_BASE_DIR}/dnscrypt-resolvers.csv.minisig" && \
minisign -Vm ${RESOLVERS_LIST_BASE_DIR}/dnscrypt-resolvers.csv.tmp \
-x "${RESOLVERS_LIST_BASE_DIR}/dnscrypt-resolvers.csv.minisig" \
-P "$RESOLVERS_LIST_PUBLIC_KEY" -q && \
mv -f ${RESOLVERS_LIST_BASE_DIR}/dnscrypt-resolvers.csv.tmp \
${RESOLVERS_LIST_BASE_DIR}/dnscrypt-resolvers.csv
EOS
chmod 0775, bin/"dnscrypt-update-resolvers"
end
end
def post_install
return if build.without? "minisign"
system bin/"dnscrypt-update-resolvers"
end
def caveats
s = <<-EOS.undent
After starting dnscrypt-proxy, you will need to point your
local DNS server to 127.0.0.1. You can do this by going to
System Preferences > "Network" and clicking the "Advanced..."
button for your interface. You will see a "DNS" tab where you
can click "+" and enter 127.0.0.1 in the "DNS Servers" section.
By default, dnscrypt-proxy runs on localhost (127.0.0.1), port 53,
and under the "nobody" user using the dnscrypt.eu-dk DNSCrypt-enabled
resolver. If you would like to change these settings, you will have to edit
the plist file (e.g., --resolver-address, --provider-name, --provider-key, etc.)
To check that dnscrypt-proxy is working correctly, open Terminal and enter the
following command. Replace en1 with whatever network interface you're using:
sudo tcpdump -i en1 -vvv 'port 443'
You should see a line in the result that looks like this:
resolver2.dnscrypt.eu.https
EOS
if build.with? "minisign"
s += <<-EOS.undent
If at some point the resolver file gets outdated, it can be updated to the
latest version by running: #{opt_bin}/dnscrypt-update-resolvers
EOS
end
s
end
plist_options :startup => true
def plist; <<-EOS.undent
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-/Apple/DTD PLIST 1.0/EN" "http:/www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>Label</key>
<string>#{plist_name}</string>
<key>KeepAlive</key>
<true/>
<key>RunAtLoad</key>
<true/>
<key>ProgramArguments</key>
<array>
<string>#{opt_sbin}/dnscrypt-proxy</string>
<string>--ephemeral-keys</string>
<string>--resolvers-list=#{opt_pkgshare}/dnscrypt-resolvers.csv</string>
<string>--resolver-name=dnscrypt.eu-dk</string>
<string>--user=nobody</string>
</array>
<key>UserName</key>
<string>root</string>
<key>StandardErrorPath</key>
<string>/dev/null</string>
<key>StandardOutPath</key>
<string>/dev/null</string>
</dict>
</plist>
EOS
end
test do
system "#{sbin}/dnscrypt-proxy", "--version"
end
end