├── .envrc ├── doorbell.mp3 ├── default.nix ├── .gitignore ├── nix └── doorbell.nix ├── doorbell.cabal ├── shell.nix ├── README.md ├── release.nix ├── src └── Main.hs └── LICENSE /.envrc: -------------------------------------------------------------------------------- 1 | use nix 2 | -------------------------------------------------------------------------------- /doorbell.mp3: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/seanparsons/doorbell/HEAD/doorbell.mp3 -------------------------------------------------------------------------------- /default.nix: -------------------------------------------------------------------------------- 1 | { compiler ? "ghc865" }: 2 | 3 | (import ./release.nix {inherit compiler;}).doorbell -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | dist 2 | dist-* 3 | cabal-dev 4 | *.o 5 | *.hi 6 | *.chi 7 | *.chs.h 8 | *.dyn_o 9 | *.dyn_hi 10 | .hpc 11 | .hsenv 12 | .cabal-sandbox/ 13 | cabal.sandbox.config 14 | *.prof 15 | *.aux 16 | *.hp 17 | *.eventlog 18 | .stack-work/ 19 | cabal.project.local 20 | cabal.project.local~ 21 | .HTF/ 22 | .ghc.environment.* 23 | *.sublime-* 24 | result 25 | .direnv.d 26 | -------------------------------------------------------------------------------- /nix/doorbell.nix: -------------------------------------------------------------------------------- 1 | { mkDerivation, async, base, blaze-builder, bytestring, file-embed 2 | , http-client, http-client-tls, http-types, old-locale, process 3 | , resourcet, stdenv, temporary, text, time, transformers 4 | }: 5 | mkDerivation { 6 | pname = "doorbell"; 7 | version = "0.1.0.0"; 8 | src = ./..; 9 | isLibrary = false; 10 | isExecutable = true; 11 | executableHaskellDepends = [ 12 | async base blaze-builder bytestring file-embed http-client 13 | http-client-tls http-types old-locale process resourcet temporary 14 | text time transformers 15 | ]; 16 | license = stdenv.lib.licenses.mpl20; 17 | } 18 | -------------------------------------------------------------------------------- /doorbell.cabal: -------------------------------------------------------------------------------- 1 | name: doorbell 2 | version: 0.1.0.0 3 | -- synopsis: 4 | -- description: 5 | license: MPL-2.0 6 | license-file: LICENSE 7 | author: Sean Parsons 8 | -- maintainer: 9 | -- copyright: 10 | -- category: 11 | build-type: Simple 12 | -- extra-source-files: 13 | cabal-version: >=1.10 14 | 15 | executable doorbell 16 | main-is: Main.hs 17 | -- other-modules: 18 | -- other-extensions: 19 | build-depends: base, 20 | time, 21 | transformers, 22 | process, 23 | text, 24 | http-client, 25 | http-types, 26 | blaze-builder, 27 | resourcet, 28 | http-client-tls, 29 | bytestring, 30 | old-locale, 31 | async, 32 | file-embed, 33 | temporary 34 | ghc-options: -O3 -threaded 35 | hs-source-dirs: src 36 | default-language: Haskell2010 37 | -------------------------------------------------------------------------------- /shell.nix: -------------------------------------------------------------------------------- 1 | { compiler ? "ghc865" }: 2 | 3 | let 4 | release = (import ./release.nix {inherit compiler;}); 5 | pkgs = release.pkgs; 6 | scripts = [ 7 | (pkgs.writeScriptBin "rebuild-nix" '' 8 | #!/usr/bin/env bash 9 | cd $(${pkgs.git}/bin/git rev-parse --show-toplevel)/nix 10 | ${pkgs.haskellPackages.cabal2nix}/bin/cabal2nix .. > doorbell.nix 11 | '') 12 | (pkgs.writeScriptBin "ghcid-watch" '' 13 | #!/usr/bin/env bash 14 | ${pkgs.haskellPackages.ghcid}/bin/ghcid --command 'cabal new-repl all' 15 | '') 16 | ]; 17 | in pkgs.stdenv.lib.overrideDerivation release.doorbell.env (oldAttrs: rec { 18 | nativeBuildInputs = (oldAttrs.nativeBuildInputs or []) ++ [ 19 | (pkgs.stdenv.mkDerivation { 20 | name = "scripts"; 21 | phases = "installPhase"; 22 | installPhase = '' 23 | mkdir -p $out/bin 24 | '' + (builtins.concatStringsSep "" (builtins.map (script: '' 25 | for f in $(ls -d ${script}/bin/*); do ln -s $f $out/bin; done 26 | '') scripts)); 27 | }) 28 | release.cabal 29 | pkgs.watchexec 30 | pkgs.haskellPackages.cabal2nix 31 | pkgs.haskellPackages.ghcid 32 | ]; 33 | }) 34 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | Haskell Powered Doorbell! 2 | ------------------------- 3 | 4 | For some bizarre reason I thought it would be cool to have a Haskell powered doorbell that would make our phones 5 | chime instead of a crappy box that runs out of batteries all the time. 6 | 7 | #### Hardware I'm using: 8 | 9 | The transmitter and receiver I'm using are the following: 10 | [Byron BY100](http://www.amazon.co.uk/BY100-Wireless-Button-Byron-Doorbell/dp/B006H3K8AG) 11 | [KEEDOX DVB-T Receiver](http://www.amazon.co.uk/gp/product/B009VBUYA0) 12 | 13 | #### Also supported by: 14 | 15 | This [Dockerfile](https://github.com/seanparsons/watcherdocker/blob/master/Dockerfile), in a separate project for no specific reason, 16 | does most of the setup involving the [rtl_433](https://github.com/merbanan/rtl_433) library and tools. 17 | 18 | Currently this uses the [Pushover](https://pushover.net/) service and app for the notification to reach our phones, 19 | potentially I might add to this so that something in the house still warns us because sometimes there is a large 20 | delay until the notification arrives. 21 | 22 | #### How does it work? 23 | 24 | All the app does is run the rtl_433 command line tool in its listen mode, 25 | then watches the output for certain strings that match the hardware doorbell. 26 | Once one of those is seen (modulo some deduplication detection) it then plays 27 | a sound and fires off the notification to Pushover. 28 | 29 | #### Also 30 | 31 | Doorbell sound comes from here: [http://www.orangefreesounds.com/door-chime-sound/](http://www.orangefreesounds.com/door-chime-sound/) -------------------------------------------------------------------------------- /release.nix: -------------------------------------------------------------------------------- 1 | { compiler ? "ghc865", nixpkgs ? }: 2 | 3 | let 4 | # Disable tests for these packages 5 | dontCheckPackages = [ 6 | ]; 7 | 8 | # Jailbreak these packages 9 | doJailbreakPackages = [ 10 | ]; 11 | 12 | # Disable haddocks for these packages 13 | dontHaddockPackages = [ 14 | ]; 15 | 16 | generatedOverrides = haskellPackagesNew: haskellPackagesOld: 17 | let 18 | toPackage = file: _: { 19 | name = builtins.replaceStrings [ ".nix" ] [ "" ] file; 20 | value = haskellPackagesNew.callPackage (./. + "/nix/${file}") { }; 21 | }; 22 | in 23 | pkgs.lib.mapAttrs' toPackage (builtins.readDir ./nix); 24 | 25 | makeOverrides = 26 | function: names: haskellPackagesNew: haskellPackagesOld: 27 | let 28 | toPackage = name: { 29 | inherit name; 30 | value = function haskellPackagesOld.${name}; 31 | }; 32 | in 33 | builtins.listToAttrs (map toPackage names); 34 | 35 | composeExtensionsList = 36 | pkgs.lib.fold pkgs.lib.composeExtensions (_: _: {}); 37 | 38 | # More exotic overrides go here 39 | manualOverrides = haskellPackagesNew: haskellPackagesOld: { 40 | doorbell = pkgs.haskell.lib.addBuildDepend haskellPackagesOld.doorbell [pkgs.rtl_433 pkgs.ffmpeg-full]; 41 | }; 42 | 43 | config = { 44 | allowUnfree = true; 45 | packageOverrides = pkgs: rec { 46 | haskell = pkgs.haskell // { 47 | packages = pkgs.haskell.packages // { 48 | "${compiler}" = pkgs.haskell.packages."${compiler}".override { 49 | overrides = composeExtensionsList [ 50 | generatedOverrides 51 | (makeOverrides pkgs.haskell.lib.dontCheck dontCheckPackages ) 52 | (makeOverrides pkgs.haskell.lib.doJailbreak doJailbreakPackages) 53 | (makeOverrides pkgs.haskell.lib.dontHaddock dontHaddockPackages) 54 | manualOverrides 55 | ]; 56 | }; 57 | }; 58 | }; 59 | }; 60 | }; 61 | 62 | pkgs = import nixpkgs { inherit config; }; 63 | in 64 | { doorbell = pkgs.haskell.packages.${compiler}.doorbell; 65 | cabal = pkgs.haskellPackages.cabal-install; 66 | pkgs = pkgs; 67 | } 68 | -------------------------------------------------------------------------------- /src/Main.hs: -------------------------------------------------------------------------------- 1 | {-# LANGUAGE OverloadedStrings #-} 2 | {-# LANGUAGE TemplateHaskell #-} 3 | 4 | import qualified System.Process as P 5 | import qualified System.Process.Internals as PI 6 | import qualified System.Locale as SL 7 | import qualified Data.Time.Clock as C 8 | import qualified Data.Time.Format as TF 9 | import qualified Data.Time.Calendar as CA 10 | import qualified System.IO as IO 11 | import qualified Data.Text as T 12 | import qualified Data.List as L 13 | import qualified Data.Maybe as M 14 | import qualified Control.Concurrent as CC 15 | import qualified Control.Concurrent.Async as CCA 16 | import qualified Control.Monad as CM 17 | import qualified System.Environment as SE 18 | import qualified Network.HTTP.Client as HTTP 19 | import qualified Network.HTTP.Types as HT 20 | import qualified Data.ByteString as BS 21 | import qualified Blaze.ByteString.Builder as BSB 22 | import qualified Control.Monad.Trans.Resource as R 23 | import qualified Control.Monad.IO.Class as MIO 24 | import qualified Network.HTTP.Client.TLS as TLS 25 | import qualified Control.Exception.Base as E 26 | import qualified Data.FileEmbed as FE 27 | import qualified System.IO.Temp as IOT 28 | 29 | doorbellSound :: BS.ByteString 30 | doorbellSound = $(FE.embedFile "doorbell.mp3") 31 | 32 | expectedText :: [T.Text] 33 | expectedText = ["{19}cb1b", "{17}cb3f8", "{18}cadfc", "{21}cb1bf8"] 34 | 35 | rtlParameters :: [String] 36 | rtlParameters = ["-v", "-X", "doorbell#1:OOK_PWM:500:1000:3300:1200,match={2}0x3,repeats>=4,bits=21"] 37 | 38 | rtlProcess :: String -> PI.CreateProcess 39 | rtlProcess rtl433Path = (P.proc rtl433Path rtlParameters) { P.std_out = P.CreatePipe, P.std_err = P.CreatePipe } 40 | 41 | processLine :: IO () -> IO.Handle -> C.UTCTime -> IO () 42 | processLine action handle lastProcessed = do 43 | line <- IO.hGetLine handle 44 | let lineAsText = T.pack line 45 | let containsExpected = L.any (\text -> T.isInfixOf text lineAsText) expectedText 46 | CM.when containsExpected $ do 47 | currentTime <- C.getCurrentTime 48 | let difference = C.diffUTCTime currentTime lastProcessed 49 | let longEnoughPassed = 5.0 < (realToFrac difference) 50 | let doorBellPressed = containsExpected && longEnoughPassed 51 | if doorBellPressed then action else return () 52 | processLine action handle $ if doorBellPressed then currentTime else lastProcessed 53 | CM.unless containsExpected $ do 54 | processLine action handle lastProcessed 55 | 56 | playDoorBellSound :: String -> IO.FilePath -> IO () 57 | playDoorBellSound ffPlayPath doorbellFile = CM.void $ CC.forkIO $ do 58 | time <- C.getCurrentTime 59 | putStrLn ("Doorbell pressed at " ++ (show time)) 60 | P.callProcess ffPlayPath ["-autoexit", "-nodisp", "-loglevel", "quiet", doorbellFile] 61 | 62 | catcher :: E.IOException -> IO () 63 | catcher = print 64 | 65 | runApplication :: IO () 66 | runApplication = do 67 | IO.hSetBuffering IO.stdout IO.LineBuffering 68 | IOT.withSystemTempFile "doorbell.mp3" $ \doorbellFile -> \doorbellHandle -> do 69 | putStrLn "Starting up!" 70 | BS.hPut doorbellHandle doorbellSound 71 | rtl433Path <- fmap (M.fromMaybe "rtl_433") $ SE.lookupEnv "RTL_433_PATH" 72 | putStrLn ("rtl433Path set to " ++ rtl433Path) 73 | ffPlayPath <- fmap (M.fromMaybe "ffplay") $ SE.lookupEnv "FFPLAY_PATH" 74 | putStrLn ("ffPlayPath set to " ++ ffPlayPath) 75 | P.withCreateProcess (rtlProcess rtl433Path) $ \_ -> \maybeOutHandle -> \_ -> \_ -> do 76 | outHandle <- M.maybe (fail "Not stdout handle.") return maybeOutHandle 77 | IO.hSetBuffering outHandle IO.LineBuffering 78 | processLine (playDoorBellSound ffPlayPath doorbellFile) outHandle $ C.UTCTime (CA.ModifiedJulianDay 0) 0 79 | 80 | main :: IO () 81 | main = do 82 | let app = runApplication 83 | E.catch app catcher 84 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Mozilla Public License Version 2.0 2 | ================================== 3 | 4 | 1. Definitions 5 | -------------- 6 | 7 | 1.1. "Contributor" 8 | means each individual or legal entity that creates, contributes to 9 | the creation of, or owns Covered Software. 10 | 11 | 1.2. "Contributor Version" 12 | means the combination of the Contributions of others (if any) used 13 | by a Contributor and that particular Contributor's Contribution. 14 | 15 | 1.3. "Contribution" 16 | means Covered Software of a particular Contributor. 17 | 18 | 1.4. "Covered Software" 19 | means Source Code Form to which the initial Contributor has attached 20 | the notice in Exhibit A, the Executable Form of such Source Code 21 | Form, and Modifications of such Source Code Form, in each case 22 | including portions thereof. 23 | 24 | 1.5. "Incompatible With Secondary Licenses" 25 | means 26 | 27 | (a) that the initial Contributor has attached the notice described 28 | in Exhibit B to the Covered Software; or 29 | 30 | (b) that the Covered Software was made available under the terms of 31 | version 1.1 or earlier of the License, but not also under the 32 | terms of a Secondary License. 33 | 34 | 1.6. "Executable Form" 35 | means any form of the work other than Source Code Form. 36 | 37 | 1.7. "Larger Work" 38 | means a work that combines Covered Software with other material, in 39 | a separate file or files, that is not Covered Software. 40 | 41 | 1.8. "License" 42 | means this document. 43 | 44 | 1.9. "Licensable" 45 | means having the right to grant, to the maximum extent possible, 46 | whether at the time of the initial grant or subsequently, any and 47 | all of the rights conveyed by this License. 48 | 49 | 1.10. "Modifications" 50 | means any of the following: 51 | 52 | (a) any file in Source Code Form that results from an addition to, 53 | deletion from, or modification of the contents of Covered 54 | Software; or 55 | 56 | (b) any new file in Source Code Form that contains any Covered 57 | Software. 58 | 59 | 1.11. "Patent Claims" of a Contributor 60 | means any patent claim(s), including without limitation, method, 61 | process, and apparatus claims, in any patent Licensable by such 62 | Contributor that would be infringed, but for the grant of the 63 | License, by the making, using, selling, offering for sale, having 64 | made, import, or transfer of either its Contributions or its 65 | Contributor Version. 66 | 67 | 1.12. "Secondary License" 68 | means either the GNU General Public License, Version 2.0, the GNU 69 | Lesser General Public License, Version 2.1, the GNU Affero General 70 | Public License, Version 3.0, or any later versions of those 71 | licenses. 72 | 73 | 1.13. "Source Code Form" 74 | means the form of the work preferred for making modifications. 75 | 76 | 1.14. "You" (or "Your") 77 | means an individual or a legal entity exercising rights under this 78 | License. For legal entities, "You" includes any entity that 79 | controls, is controlled by, or is under common control with You. For 80 | purposes of this definition, "control" means (a) the power, direct 81 | or indirect, to cause the direction or management of such entity, 82 | whether by contract or otherwise, or (b) ownership of more than 83 | fifty percent (50%) of the outstanding shares or beneficial 84 | ownership of such entity. 85 | 86 | 2. License Grants and Conditions 87 | -------------------------------- 88 | 89 | 2.1. Grants 90 | 91 | Each Contributor hereby grants You a world-wide, royalty-free, 92 | non-exclusive license: 93 | 94 | (a) under intellectual property rights (other than patent or trademark) 95 | Licensable by such Contributor to use, reproduce, make available, 96 | modify, display, perform, distribute, and otherwise exploit its 97 | Contributions, either on an unmodified basis, with Modifications, or 98 | as part of a Larger Work; and 99 | 100 | (b) under Patent Claims of such Contributor to make, use, sell, offer 101 | for sale, have made, import, and otherwise transfer either its 102 | Contributions or its Contributor Version. 103 | 104 | 2.2. Effective Date 105 | 106 | The licenses granted in Section 2.1 with respect to any Contribution 107 | become effective for each Contribution on the date the Contributor first 108 | distributes such Contribution. 109 | 110 | 2.3. Limitations on Grant Scope 111 | 112 | The licenses granted in this Section 2 are the only rights granted under 113 | this License. No additional rights or licenses will be implied from the 114 | distribution or licensing of Covered Software under this License. 115 | Notwithstanding Section 2.1(b) above, no patent license is granted by a 116 | Contributor: 117 | 118 | (a) for any code that a Contributor has removed from Covered Software; 119 | or 120 | 121 | (b) for infringements caused by: (i) Your and any other third party's 122 | modifications of Covered Software, or (ii) the combination of its 123 | Contributions with other software (except as part of its Contributor 124 | Version); or 125 | 126 | (c) under Patent Claims infringed by Covered Software in the absence of 127 | its Contributions. 128 | 129 | This License does not grant any rights in the trademarks, service marks, 130 | or logos of any Contributor (except as may be necessary to comply with 131 | the notice requirements in Section 3.4). 132 | 133 | 2.4. Subsequent Licenses 134 | 135 | No Contributor makes additional grants as a result of Your choice to 136 | distribute the Covered Software under a subsequent version of this 137 | License (see Section 10.2) or under the terms of a Secondary License (if 138 | permitted under the terms of Section 3.3). 139 | 140 | 2.5. Representation 141 | 142 | Each Contributor represents that the Contributor believes its 143 | Contributions are its original creation(s) or it has sufficient rights 144 | to grant the rights to its Contributions conveyed by this License. 145 | 146 | 2.6. Fair Use 147 | 148 | This License is not intended to limit any rights You have under 149 | applicable copyright doctrines of fair use, fair dealing, or other 150 | equivalents. 151 | 152 | 2.7. Conditions 153 | 154 | Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted 155 | in Section 2.1. 156 | 157 | 3. Responsibilities 158 | ------------------- 159 | 160 | 3.1. Distribution of Source Form 161 | 162 | All distribution of Covered Software in Source Code Form, including any 163 | Modifications that You create or to which You contribute, must be under 164 | the terms of this License. You must inform recipients that the Source 165 | Code Form of the Covered Software is governed by the terms of this 166 | License, and how they can obtain a copy of this License. You may not 167 | attempt to alter or restrict the recipients' rights in the Source Code 168 | Form. 169 | 170 | 3.2. Distribution of Executable Form 171 | 172 | If You distribute Covered Software in Executable Form then: 173 | 174 | (a) such Covered Software must also be made available in Source Code 175 | Form, as described in Section 3.1, and You must inform recipients of 176 | the Executable Form how they can obtain a copy of such Source Code 177 | Form by reasonable means in a timely manner, at a charge no more 178 | than the cost of distribution to the recipient; and 179 | 180 | (b) You may distribute such Executable Form under the terms of this 181 | License, or sublicense it under different terms, provided that the 182 | license for the Executable Form does not attempt to limit or alter 183 | the recipients' rights in the Source Code Form under this License. 184 | 185 | 3.3. Distribution of a Larger Work 186 | 187 | You may create and distribute a Larger Work under terms of Your choice, 188 | provided that You also comply with the requirements of this License for 189 | the Covered Software. If the Larger Work is a combination of Covered 190 | Software with a work governed by one or more Secondary Licenses, and the 191 | Covered Software is not Incompatible With Secondary Licenses, this 192 | License permits You to additionally distribute such Covered Software 193 | under the terms of such Secondary License(s), so that the recipient of 194 | the Larger Work may, at their option, further distribute the Covered 195 | Software under the terms of either this License or such Secondary 196 | License(s). 197 | 198 | 3.4. Notices 199 | 200 | You may not remove or alter the substance of any license notices 201 | (including copyright notices, patent notices, disclaimers of warranty, 202 | or limitations of liability) contained within the Source Code Form of 203 | the Covered Software, except that You may alter any license notices to 204 | the extent required to remedy known factual inaccuracies. 205 | 206 | 3.5. Application of Additional Terms 207 | 208 | You may choose to offer, and to charge a fee for, warranty, support, 209 | indemnity or liability obligations to one or more recipients of Covered 210 | Software. However, You may do so only on Your own behalf, and not on 211 | behalf of any Contributor. You must make it absolutely clear that any 212 | such warranty, support, indemnity, or liability obligation is offered by 213 | You alone, and You hereby agree to indemnify every Contributor for any 214 | liability incurred by such Contributor as a result of warranty, support, 215 | indemnity or liability terms You offer. You may include additional 216 | disclaimers of warranty and limitations of liability specific to any 217 | jurisdiction. 218 | 219 | 4. Inability to Comply Due to Statute or Regulation 220 | --------------------------------------------------- 221 | 222 | If it is impossible for You to comply with any of the terms of this 223 | License with respect to some or all of the Covered Software due to 224 | statute, judicial order, or regulation then You must: (a) comply with 225 | the terms of this License to the maximum extent possible; and (b) 226 | describe the limitations and the code they affect. Such description must 227 | be placed in a text file included with all distributions of the Covered 228 | Software under this License. Except to the extent prohibited by statute 229 | or regulation, such description must be sufficiently detailed for a 230 | recipient of ordinary skill to be able to understand it. 231 | 232 | 5. Termination 233 | -------------- 234 | 235 | 5.1. The rights granted under this License will terminate automatically 236 | if You fail to comply with any of its terms. However, if You become 237 | compliant, then the rights granted under this License from a particular 238 | Contributor are reinstated (a) provisionally, unless and until such 239 | Contributor explicitly and finally terminates Your grants, and (b) on an 240 | ongoing basis, if such Contributor fails to notify You of the 241 | non-compliance by some reasonable means prior to 60 days after You have 242 | come back into compliance. Moreover, Your grants from a particular 243 | Contributor are reinstated on an ongoing basis if such Contributor 244 | notifies You of the non-compliance by some reasonable means, this is the 245 | first time You have received notice of non-compliance with this License 246 | from such Contributor, and You become compliant prior to 30 days after 247 | Your receipt of the notice. 248 | 249 | 5.2. If You initiate litigation against any entity by asserting a patent 250 | infringement claim (excluding declaratory judgment actions, 251 | counter-claims, and cross-claims) alleging that a Contributor Version 252 | directly or indirectly infringes any patent, then the rights granted to 253 | You by any and all Contributors for the Covered Software under Section 254 | 2.1 of this License shall terminate. 255 | 256 | 5.3. In the event of termination under Sections 5.1 or 5.2 above, all 257 | end user license agreements (excluding distributors and resellers) which 258 | have been validly granted by You or Your distributors under this License 259 | prior to termination shall survive termination. 260 | 261 | ************************************************************************ 262 | * * 263 | * 6. Disclaimer of Warranty * 264 | * ------------------------- * 265 | * * 266 | * Covered Software is provided under this License on an "as is" * 267 | * basis, without warranty of any kind, either expressed, implied, or * 268 | * statutory, including, without limitation, warranties that the * 269 | * Covered Software is free of defects, merchantable, fit for a * 270 | * particular purpose or non-infringing. The entire risk as to the * 271 | * quality and performance of the Covered Software is with You. * 272 | * Should any Covered Software prove defective in any respect, You * 273 | * (not any Contributor) assume the cost of any necessary servicing, * 274 | * repair, or correction. This disclaimer of warranty constitutes an * 275 | * essential part of this License. No use of any Covered Software is * 276 | * authorized under this License except under this disclaimer. * 277 | * * 278 | ************************************************************************ 279 | 280 | ************************************************************************ 281 | * * 282 | * 7. Limitation of Liability * 283 | * -------------------------- * 284 | * * 285 | * Under no circumstances and under no legal theory, whether tort * 286 | * (including negligence), contract, or otherwise, shall any * 287 | * Contributor, or anyone who distributes Covered Software as * 288 | * permitted above, be liable to You for any direct, indirect, * 289 | * special, incidental, or consequential damages of any character * 290 | * including, without limitation, damages for lost profits, loss of * 291 | * goodwill, work stoppage, computer failure or malfunction, or any * 292 | * and all other commercial damages or losses, even if such party * 293 | * shall have been informed of the possibility of such damages. This * 294 | * limitation of liability shall not apply to liability for death or * 295 | * personal injury resulting from such party's negligence to the * 296 | * extent applicable law prohibits such limitation. Some * 297 | * jurisdictions do not allow the exclusion or limitation of * 298 | * incidental or consequential damages, so this exclusion and * 299 | * limitation may not apply to You. * 300 | * * 301 | ************************************************************************ 302 | 303 | 8. Litigation 304 | ------------- 305 | 306 | Any litigation relating to this License may be brought only in the 307 | courts of a jurisdiction where the defendant maintains its principal 308 | place of business and such litigation shall be governed by laws of that 309 | jurisdiction, without reference to its conflict-of-law provisions. 310 | Nothing in this Section shall prevent a party's ability to bring 311 | cross-claims or counter-claims. 312 | 313 | 9. Miscellaneous 314 | ---------------- 315 | 316 | This License represents the complete agreement concerning the subject 317 | matter hereof. If any provision of this License is held to be 318 | unenforceable, such provision shall be reformed only to the extent 319 | necessary to make it enforceable. Any law or regulation which provides 320 | that the language of a contract shall be construed against the drafter 321 | shall not be used to construe this License against a Contributor. 322 | 323 | 10. Versions of the License 324 | --------------------------- 325 | 326 | 10.1. New Versions 327 | 328 | Mozilla Foundation is the license steward. Except as provided in Section 329 | 10.3, no one other than the license steward has the right to modify or 330 | publish new versions of this License. Each version will be given a 331 | distinguishing version number. 332 | 333 | 10.2. Effect of New Versions 334 | 335 | You may distribute the Covered Software under the terms of the version 336 | of the License under which You originally received the Covered Software, 337 | or under the terms of any subsequent version published by the license 338 | steward. 339 | 340 | 10.3. Modified Versions 341 | 342 | If you create software not governed by this License, and you want to 343 | create a new license for such software, you may create and use a 344 | modified version of this License if you rename the license and remove 345 | any references to the name of the license steward (except to note that 346 | such modified license differs from this License). 347 | 348 | 10.4. Distributing Source Code Form that is Incompatible With Secondary 349 | Licenses 350 | 351 | If You choose to distribute Source Code Form that is Incompatible With 352 | Secondary Licenses under the terms of this version of the License, the 353 | notice described in Exhibit B of this License must be attached. 354 | 355 | Exhibit A - Source Code Form License Notice 356 | ------------------------------------------- 357 | 358 | This Source Code Form is subject to the terms of the Mozilla Public 359 | License, v. 2.0. If a copy of the MPL was not distributed with this 360 | file, You can obtain one at http://mozilla.org/MPL/2.0/. 361 | 362 | If it is not possible or desirable to put the notice in a particular 363 | file, then You may include the notice in a location (such as a LICENSE 364 | file in a relevant directory) where a recipient would be likely to look 365 | for such a notice. 366 | 367 | You may add additional accurate notices of copyright ownership. 368 | 369 | Exhibit B - "Incompatible With Secondary Licenses" Notice 370 | --------------------------------------------------------- 371 | 372 | This Source Code Form is "Incompatible With Secondary Licenses", as 373 | defined by the Mozilla Public License, v. 2.0. 374 | --------------------------------------------------------------------------------