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many improvements on the process and published of the encrypted format; if a public key isn't provided as metadata, the key is passed in plain text using a .txt file, otherwise a .enc file is used to store the encrypted key; fixed identation; removing all files except the published ones; handling also the files stored on /var/bigbluebutton/{meetingId} - they are now included into the zip file and will be restored on the recording server

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This commit is contained in:
Felipe Cecagno 2013-02-06 17:47:33 -02:00
parent 420f5c976b
commit d26f25f7fb
4 changed files with 132 additions and 97 deletions
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22
record-and-playback/mconf/scripts/mconf.nginx Normal file
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@ -0,0 +1,22 @@
#
# BigBlueButton open source conferencing system - http://www.bigbluebutton.org/
#
# Copyright (c) 2012 BigBlueButton Inc. and by respective authors (see below).
#
# This program is free software; you can redistribute it and/or modify it under the
# terms of the GNU Lesser General Public License as published by the Free Software
# Foundation; either version 3.0 of the License, or (at your option) any later
# version.
#
# BigBlueButton 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 Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License along
# with BigBlueButton; if not, see <http://www.gnu.org/licenses/>.
#
location /mconf {
root /var/bigbluebutton/published;
index index.html index.htm;
}

2
record-and-playback/mconf/scripts/mconf.yml
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@ -1,3 +1 @@
publish_dir: /var/bigbluebutton/published/mconf
playback_host: 143.54.10.141
get_recordings_url: http://143.54.10.141/bigbluebutton/api/getRecordings?checksum=890f03ce56424120dc467f3bbf310a54fd05b541

26
record-and-playback/mconf/scripts/process/mconf.rb
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@ -38,16 +38,22 @@ BigBlueButton.logger = logger
props = YAML::load(File.open('../../core/scripts/bigbluebutton.yml'))
recording_dir = props['recording_dir']
raw_archive_dir = "#{recording_dir}/raw/#{meeting_id}"
target_dir = "#{recording_dir}/process/mconf/#{meeting_id}"
raw_presentation_src = props['raw_presentation_src']
if not FileTest.directory?(target_dir)
FileUtils.mkdir_p target_dir
# Create a copy of the raw archives
FileUtils.cp_r(raw_archive_dir, target_dir)
FileUtils.rm_r(Dir.glob("#{raw_archive_dir}/*"))
process_done = File.new("#{recording_dir}/status/processed/#{meeting_id}-mconf.done", "w")
process_done.write("Processed #{meeting_id}")
process_done.close
meeting_raw_dir = "#{recording_dir}/raw/#{meeting_id}"
meeting_raw_presentation_dir = "#{raw_presentation_src}/#{meeting_id}"
meeting_process_dir = "#{recording_dir}/process/mconf/#{meeting_id}"
if not FileTest.directory?(meeting_process_dir)
FileUtils.mkdir_p "#{meeting_process_dir}/presentation_raw"
# Create a copy of the raw archives
BigBlueButton.logger.info("Copying the recording raw files from #{meeting_raw_dir} to #{meeting_process_dir}")
FileUtils.cp_r Dir.glob("#{meeting_raw_dir}/*"), meeting_process_dir
BigBlueButton.logger.info("Copying the recording presentation from #{meeting_raw_presentation_dir}/#{meeting_id} to #{meeting_process_dir}/presentation_raw")
FileUtils.cp_r Dir.glob("#{meeting_raw_presentation_dir}/#{meeting_id}/*"), "#{meeting_process_dir}/presentation_raw"
process_done = File.new("#{recording_dir}/status/processed/#{meeting_id}-mconf.done", "w")
process_done.write("Processed #{meeting_id}")
process_done.close
end

179
record-and-playback/mconf/scripts/publish/mconf.rb
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@ -25,10 +25,11 @@ require 'cgi'
require 'digest/md5'
bbb_props = YAML::load(File.open('../../core/scripts/bigbluebutton.yml'))
simple_props = YAML::load(File.open('mconf.yml'))
recording_dir = bbb_props['recording_dir']
playback_host = simple_props['playback_host']
publish_dir = simple_props['publish_dir']
playback_host = bbb_props['playback_host']
published_dir = bbb_props['published_dir']
raw_presentation_src = bbb_props['raw_presentation_src']
done_files = Dir.glob("#{recording_dir}/status/processed/*.done")
done_files.each do |df|
match = /(.*)-(.*).done/.match df.sub(/.+\//, "")
@ -36,94 +37,102 @@ done_files.each do |df|
if (match[2] == "mconf")
BigBlueButton.logger = Logger.new("/var/log/bigbluebutton/mconf/publish-#{meeting_id}.log", 'daily' )
process_dir = "#{recording_dir}/process/mconf/#{meeting_id}"
target_dir = "#{recording_dir}/publish/mconf/#{meeting_id}"
if not FileTest.directory?(target_dir)
FileUtils.mkdir_p target_dir
meeting_process_dir = "#{recording_dir}/process/mconf/#{meeting_id}"
meeting_publish_dir = "#{recording_dir}/publish/mconf/#{meeting_id}"
meeting_published_dir = "#{recording_dir}/published/mconf/#{meeting_id}"
meeting_raw_dir = "#{recording_dir}/raw/#{meeting_id}"
meeting_raw_presentation_dir = "#{raw_presentation_src}/#{meeting_id}"
Dir.chdir(target_dir) do
BigBlueButton::MconfProcessor.zip_directory(process_dir, "#{meeting_id}.zip")
if not FileTest.directory?(meeting_publish_dir)
FileUtils.mkdir_p meeting_publish_dir
metadata = BigBlueButton::Events.get_meeting_metadata("#{process_dir}/#{meeting_id}/events.xml")
if not (metadata[:keypublic])
BigBlueButton.logger.info("Verifying events: #{metadata[:keypublic.to_s]}")
public_key_decoded = CGI::unescape("#{metadata[:keypublic.to_s]}")
length = 16
chars = 'abcdefghjkmnpqrstuvwxyzABCDEFGHJKLMNPQRSTUVWXYZ23456789'
password = ''
length.times { password << chars[rand(chars.size)] }
passfile = File.new("#{meeting_id}.txt", "w")
passfile.write "#{password}"
passfile.close
Dir.chdir(meeting_publish_dir) do
BigBlueButton::MconfProcessor.zip_directory(meeting_process_dir, "#{meeting_id}.zip")
keypublic = File.new("key-public.pem","w")
keypublic.write "#{public_key_decoded}"
keypublic.close
metadata = BigBlueButton::Events.get_meeting_metadata("#{meeting_process_dir}/events.xml")
#Encrypt files
command = "openssl enc -aes-256-cbc -pass file:#{meeting_id}.txt < #{meeting_id}.zip > #{meeting_id}.dat"
BigBlueButton.logger.info(command)
Open3.popen3(command) do | stdin, stdout, stderr|
BigBlueButton.logger.info("commandresult=")#{$?.exitstatus}")
end
command = "openssl rsautl -encrypt -pubin -inkey key-public.pem < #{meeting_id}.txt > #{meeting_id}.enc"
BigBlueButton.logger.info(command)
Open3.popen3(command) do | stdin, stdout, stderr|
BigBlueButton.logger.info("commandresult=") #{$?.exitstatus}")
end
length = 16
chars = 'abcdefghjkmnpqrstuvwxyzABCDEFGHJKLMNPQRSTUVWXYZ23456789'
password = ''
length.times { password << chars[rand(chars.size)] }
#Generate md5 checksum
md5sum = Digest::MD5.file("#{meeting_id}.dat")
passfile = File.new("#{meeting_id}.txt", "w")
passfile.write "#{password}"
passfile.close
BigBlueButton.logger.info("Removing files")
PUBLICKEY = "key-public.pem"
PASSFILE = "#{meeting_id}.txt"
ZIPFILE = "#{meeting_id}.zip"
[PUBLICKEY, PASSFILE, ZIPFILE].each { |file| FileUtils.rm_f(file)}
BigBlueButton.logger.info("Creating metadata.xml")
# Create metadata.xml
b = Builder::XmlMarkup.new(:indent => 2)
metaxml = b.recording {
b.id(meeting_id)
b.state("available")
b.published(false)
# Date Format for recordings: Thu Mar 04 14:05:56 UTC 2010
b.start_time(BigBlueButton::Events.first_event_timestamp("#{process_dir}/#{meeting_id}/events.xml"))
b.end_time(BigBlueButton::Events.last_event_timestamp("#{process_dir}/#{meeting_id}/events.xml"))
b.download {
b.format("encrypted")
b.link("http://#{playback_host}/mconf/#{meeting_id}/#{meeting_id}.dat")
b.md5(md5sum)
b.key("http://#{playback_host}/mconf/#{meeting_id}/#{meeting_id}.enc")
}
b.meta {
BigBlueButton::Events.get_meeting_metadata("#{process_dir}/#{meeting_id}/events.xml").each { |k,v| b.method_missing(k,v) }
}
}
# encrypt files
command = "openssl enc -aes-256-cbc -pass file:#{meeting_id}.txt < #{meeting_id}.zip > #{meeting_id}.dat"
BigBlueButton.execute(command)
metadata_xml = File.new("metadata.xml","w")
metadata_xml.write(metaxml)
metadata_xml.close
BigBlueButton.logger.info("Removing processed files.")
FileUtils.rm_r(Dir.glob("#{process_dir}/*"))
BigBlueButton.logger.info("Publishing mconf")
# Now publish this recording
if not FileTest.directory?(publish_dir)
FileUtils.mkdir_p publish_dir
end
FileUtils.cp_r(target_dir, publish_dir)
end
key_filename = ""
if metadata.has_key?('public_key')
key_filename = "#{meeting_id}.enc"
BigBlueButton.logger.info("Unescaping public key")
public_key_decoded = CGI::unescape("#{metadata[:public_key.to_s]}")
public_key = File.new("public_key.pem","w")
public_key.write "#{public_key_decoded}"
public_key.close
end
end
command = "openssl rsautl -encrypt -pubin -inkey public-key.pem < #{meeting_id}.txt > #{meeting_id}.enc"
BigBlueButton.execute(command)
FileUtils.rm_f "#{meeting_id}.txt"
else
key_filename = "#{meeting_id}.txt"
BigBlueButton.logger.warn "No public key was found in the meeting's metadata"
end
# generate md5 checksum
md5sum = Digest::MD5.file("#{meeting_id}.dat")
BigBlueButton.logger.info("Creating metadata.xml")
# TODO: create a flag to indicate if the file .enc is encrypted or not
# due to the presence the public key in the meeting's metadata
# Create metadata.xml
b = Builder::XmlMarkup.new(:indent => 2)
metaxml = b.recording {
b.id(meeting_id)
b.state("available")
b.published(true)
# Date Format for recordings: Thu Mar 04 14:05:56 UTC 2010
b.start_time(BigBlueButton::Events.first_event_timestamp("#{meeting_process_dir}/events.xml"))
b.end_time(BigBlueButton::Events.last_event_timestamp("#{meeting_process_dir}/events.xml"))
b.download {
b.format("encrypted")
b.link("http://#{playback_host}/mconf/#{meeting_id}/#{meeting_id}.dat")
b.md5(md5sum)
b.key("http://#{playback_host}/mconf/#{meeting_id}/#{key_filename}")
}
b.meta {
BigBlueButton::Events.get_meeting_metadata("#{meeting_process_dir}/events.xml").each { |k,v| b.method_missing(k,v) }
}
}
metadata_xml = File.new("metadata.xml","w")
metadata_xml.write(metaxml)
metadata_xml.close
BigBlueButton.logger.info("Publishing mconf")
# Now publish this recording
if not FileTest.directory?("#{published_dir}/mconf")
FileUtils.mkdir_p "#{published_dir}/mconf"
end
BigBlueButton.logger.info("Publishing files")
FileUtils.cp_r(meeting_publish_dir, "#{published_dir}/mconf")
BigBlueButton.logger.info("Removing processed files: #{meeting_process_dir}")
FileUtils.remove_entry_secure meeting_process_dir, :force => true, :verbose => true
BigBlueButton.logger.info("Removing published files: #{meeting_publish_dir}")
FileUtils.remove_entry_secure meeting_publish_dir, :force => true, :verbose => true
BigBlueButton.logger.info("Removing the recording raw files: #{meeting_raw_dir}")
FileUtils.remove_entry_secure meeting_raw_dir, :force => true, :verbose => true
BigBlueButton.logger.info("Removing the recording presentation: #{meeting_raw_presentation_dir}")
FileUtils.remove_entry_secure meeting_raw_presentation_dir, :force => true, :verbose => true
end
end
end
end
end