#
# FetchURL downloading a file from a LightTPD server through a Wireguard VPN
#
# By default, the file is an short inline HTML file at lighttpd and downloaded
# into RAM in fetchurl. However, when the test is run with base-linux,
# lighttpd uses a file created by the host filled filled with zeroes and of
# customizable size and fetchurl downloads into the host FS, so the test can
# then check the MD5 sum of the file.
#

if {[expr ![have_spec arm_64] && ![have_spec x86_64]]} {
	puts "Run script is not supported on this platform."
	exit 0
}

if {[have_spec linux]} {
	set linux 1
	set not_linux 0
} else {
	set linux 0
	set not_linux 1
}

#
# Note that in the not_linux case, the file size is rounded
# down to a multiple of 100.
#
set file_size_in_bytes 1000000

create_boot_directory

import_from_depot [depot_user]/src/libc \
                  [depot_user]/src/libssh \
                  [depot_user]/src/lighttpd \
                  [depot_user]/src/openssl \
                  [depot_user]/src/posix \
                  [depot_user]/src/vfs \
                  [depot_user]/src/vfs_lwip \
                  [depot_user]/src/zlib \
                  [depot_user]/pkg/wireguard

append config {

<config>

	<parent-provides>
		<service name="ROM"/>
		<service name="IRQ"/>
		<service name="IO_MEM"/>
		<service name="IO_PORT"/>
		<service name="PD"/>
		<service name="RM"/>
		<service name="CPU"/>
		<service name="LOG"/>
	</parent-provides>

	<start name="timer" caps="100">
		<resource name="RAM" quantum="1M"/>
		<provides> <service name="Timer"/> </provides>
		<route>
			<service name="ROM"> <parent/> </service>
			<service name="PD">  <parent/> </service>
			<service name="CPU"> <parent/> </service>
			<service name="LOG"> <parent/> </service>
			<service name="IO_PORT"> <parent/> </service> <!-- sel4/x86 -->
			<service name="IRQ">     <parent/> </service> <!-- sel4/x86 -->
		</route>
	</start>

	<start name="report" caps="100">
		<binary name="report_rom"/>
		<resource name="RAM" quantum="2M"/>
		<provides> <service name="Report"/> <service name="ROM"/> </provides>
		<route>
			<service name="ROM"> <parent/> </service>
			<service name="PD">  <parent/> </service>
			<service name="CPU"> <parent/> </service>
			<service name="LOG"> <parent/> </service>
		</route>
	</start> }

append_if $linux config {

	<start name="lx_fs" ld="no" caps="1000">
		<resource name="RAM" quantum="4M"/>
		<provides> <service name="File_system"/> </provides>
		<config>
			<policy label_prefix="fetchurl" root="/fetchurl_fs/" writeable="yes"/>
			<policy label_prefix="lighttpd" root="/lighttpd_fs/" writeable="yes"/>
		</config>
		<route>
			<service name="ROM"> <parent/> </service>
			<service name="PD">  <parent/> </service>
			<service name="CPU"> <parent/> </service>
			<service name="LOG"> <parent/> </service>
		</route>
	</start> }

append config {

	<start name="fetchurl" caps="300">
		<resource name="RAM" quantum="50M"/>
		<config>
			<report progress="yes"/>
			<vfs>
				<dir name="dev">
					<log/> <null/>
					<inline name="rtc">2019-07-04 12:00</inline>
					<inline name="random">01234567890123456789</inline>
				</dir>
				<dir name="socket">
					<lwip dhcp="yes"/>
				</dir>
				<dir name="vm"> }

append_if $linux config {

					<fs/> }

append_if $not_linux config {

					<ram/> }

append config {

				</dir>
			</vfs>
			<libc stdout="/dev/log" stderr="/dev/log" rtc="/dev/rtc" socket="/socket"/>
			<fetch url="10.0.9.2" path="/vm/index.html" retry="3"/>
		</config>
		<route>
			<service name="File_system"> <child name="lx_fs"/> </service>
			<service name="Report">      <child name="report"/> </service>
			<service name="Timer">       <child name="timer"/> </service>
			<service name="Nic">         <child name="nic_router"/> </service>
			<service name="ROM">         <parent/> </service>
			<service name="PD">          <parent/> </service>
			<service name="CPU">         <parent/> </service>
			<service name="LOG">         <parent/> </service>
		</route>
	</start>

	<start name="peer1_wireguard" caps="200">
		<binary name="wireguard"/>
		<resource name="RAM" quantum="10M"/>
		<config private_key="0CtU34qsl97IGiYKSO4tMaF/SJvy04zzeQkhZEbZSk0="
		        listen_port="49001">

			<peer public_key="GrvyALPZ3PQ2AWM+ovxJqnxSqKpmTyqUui5jH+C8I0E="
			      endpoint_ip="10.1.2.1"
			      endpoint_port="49002"
			      allowed_ip="10.0.9.2/32" />

		</config>
		<route>
			<service name="Timer">  <child name="timer"/> </service>
			<service name="Nic">    <child name="nic_router"/> </service>
			<service name="Uplink"> <child name="nic_router"/> </service>
			<service name="ROM">    <parent/> </service>
			<service name="PD">     <parent/> </service>
			<service name="CPU">    <parent/> </service>
			<service name="LOG">    <parent/> </service>
		</route>
	</start>

	<start name="nic_router" caps="200">
		<resource name="RAM" quantum="10M"/>
		<provides>
			<service name="Nic"/>
			<service name="Uplink"/>
		</provides>
		<config>

			<policy label="peer1_wireguard -> nic_session"    domain="peer1_outer_downlink"/>
			<policy label="peer1_wireguard -> uplink_session" domain="peer1_inner_uplink"/>
			<policy label="fetchurl -> lwip"                  domain="peer1_inner_downlink"/>
			<policy label="peer2_wireguard -> nic_session"    domain="peer2_outer_downlink"/>
			<policy label="peer2_wireguard -> uplink_session" domain="peer2_inner_uplink"/>
			<policy label="lighttpd -> lwip"                  domain="peer2_inner_downlink"/>

			<domain name="peer1_outer_downlink" interface="10.1.2.1/24">
				<dhcp-server ip_first="10.1.2.2" ip_last="10.1.2.2"/>
				<udp-forward port="49002" domain="peer2_outer_downlink" to="10.0.3.2"/>
			</domain>

			<domain name="peer1_inner_uplink" interface="10.0.9.1/24" use_arp="no" >
				<nat domain="peer1_inner_downlink" tcp-ports="1000"/>
			</domain>

			<domain name="peer1_inner_downlink" interface="10.1.3.1/24">
				<dhcp-server ip_first="10.1.3.2" ip_last="10.1.3.2"/>
				<tcp dst="10.0.9.2/24">
					<permit port="80" domain="peer1_inner_uplink"/>
				</tcp>
			</domain>

			<domain name="peer2_outer_downlink" interface="10.0.3.1/24">
				<dhcp-server ip_first="10.0.3.2" ip_last="10.0.3.2"/>
			</domain>

			<domain name="peer2_inner_uplink" interface="10.0.9.2/24" use_arp="no">
				<tcp-forward port="80" domain="peer2_inner_downlink" to="10.0.5.2"/>
			</domain>

			<domain name="peer2_inner_downlink" interface="10.0.5.1/24">
				<dhcp-server ip_first="10.0.5.2" ip_last="10.0.5.2"/>
			</domain>

		</config>
		<route>
			<service name="Timer"> <child name="timer"/> </service>
			<service name="ROM">   <parent/> </service>
			<service name="PD">    <parent/> </service>
			<service name="CPU">   <parent/> </service>
			<service name="LOG">   <parent/> </service>
		</route>
	</start>

	<start name="peer2_wireguard" caps="200">
		<binary name="wireguard"/>
		<resource name="RAM" quantum="10M"/>
		<config private_key="8GRSQZMgG1uuvz4APIBqrDmiLj8L886r++hzixjjHFc="
		        listen_port="49002">

			<peer public_key="r1Gslnm82X8NaijsWzPoSFzDZGl2tTJoPa+EJL4gYQw="
			      allowed_ip="10.0.9.1/32" />

		</config>
		<route>
			<service name="Timer">    <child name="timer"/> </service>
			<service name="Nic">      <child name="nic_router"/> </service>
			<service name="Uplink">   <child name="nic_router"/> </service>
			<service name="ROM">      <parent/> </service>
			<service name="PD">       <parent/> </service>
			<service name="CPU">      <parent/> </service>
			<service name="LOG">      <parent/> </service>
		</route>
	</start>

	<start name="lighttpd" caps="200">
		<resource name="RAM" quantum="50M" />
		<config>
			<arg value="lighttpd" />
			<arg value="-f" />
			<arg value="/etc/lighttpd/lighttpd.conf" />
			<arg value="-D" />
			<vfs>
				<dir name="dev">
					<log/> <null/>
					<inline name="rtc">2000-01-01 00:00</inline>
					<inline name="random">0123456789012345678901234567890123456789</inline>
				</dir>
				<dir name="socket"> <lwip dhcp="yes"/> </dir>
				<dir name="etc">
					<dir name="lighttpd">
						<inline name="lighttpd.conf">
# lighttpd configuration
server.port            = 80
server.document-root   = "/website"
server.event-handler   = "select"
server.network-backend = "write"
server.upload-dirs     = ( "/tmp" )
server.modules         = ("mod_openssl")
index-file.names     = (
  "index.xhtml", "index.html", "index.htm"
)
mimetype.assign      = (
  ".html"         =>      "text/html",
  ".htm"          =>      "text/html"
)
$SERVER["socket"] == ":443" {
	ssl.engine  = "enable"
	ssl.pemfile = "/etc/lighttpd/example.pem"
}
						</inline>
						<inline name="example.pem">
-----BEGIN PRIVATE KEY-----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-----END PRIVATE KEY-----
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
						</inline>
					</dir>
				</dir>
				<dir name="website"> }

append_if $linux config {

					<fs/> }

if {$not_linux} {

	append config {<inline name="index.html">}
	for {set i 0} {$i < $file_size_in_bytes} {incr i 64} {

		# append 100 bytes of "0"
		append config {0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000}
	}
	append config {</inline>}
}

append config {

				</dir>
				<dir name="tmp"> <ram/> </dir>
			</vfs>
			<libc stdin="/dev/null" stdout="/dev/log" stderr="/dev/log"
			      rtc="/dev/rtc" rng="/dev/random" socket="/socket"/>
		</config>

		<route>
			<service name="File_system"> <child name="lx_fs"/> </service>
			<service name="Nic">         <child name="nic_router"/> </service>
			<service name="Timer">       <child name="timer"/> </service>
			<service name="ROM">         <parent/> </service>
			<service name="PD">          <parent/> </service>
			<service name="CPU">         <parent/> </service>
			<service name="LOG">         <parent/> </service>
		</route>

	</start>

</config>
}

install_config $config

append targets {
	core init timer lib/ld server/nic_router server/report_rom lib/curl
	app/fetchurl }

if $linux {

	append targets { server/lx_fs }

	# create the lx_fs root of fetchurl where it will store the downloaded file
	proc lx_fs_root {} { return [run_dir]/genode }
	exec rm -rf [lx_fs_root]/fetchurl_fs
	exec mkdir -p [lx_fs_root]/fetchurl_fs

	# create the lx_fs root of lighttpd and the downloadable file inside it
	exec rm -rf [lx_fs_root]/lighttpd_fs
	exec mkdir -p [lx_fs_root]/lighttpd_fs
	exec head -c $file_size_in_bytes /dev/zero > [lx_fs_root]/lighttpd_fs/index.html
}

build $targets

build_boot_image [build_artifacts]

append qemu_args "-nographic "

# run the scenario till fetchurl succeeded to download the file
run_genode_until "fetchurl. exited with exit value 0.*\n" 60

if {$linux} {

	# check that the md5 sum of the downloaded file is correct
	set lighttpd_index_md5 [exec md5sum [lx_fs_root]/lighttpd_fs/index.html]
	set fetchurl_index_md5 [exec md5sum [lx_fs_root]/fetchurl_fs/index.html]

	puts ""
	puts $lighttpd_index_md5
	puts $fetchurl_index_md5
	puts "MD5SUM of transferred files is correct"

	if {[string compare -length 32 $lighttpd_index_md5 $fetchurl_index_md5]} {
		puts ""
		puts "Error: MD5SUM of transferred files is incorrect"
		puts ""
		exit -1
	}
}