├── .github ├── ISSUE_TEMPLATE │ ├── config.yml │ └── open_an_issue.md └── config.yml ├── .gitignore ├── .travis.yml ├── Dockerfile ├── LICENSE ├── Makefile ├── README.md ├── go.mod ├── go.sum ├── main.go └── ui.go /.github/ISSUE_TEMPLATE/config.yml: -------------------------------------------------------------------------------- 1 | blank_issues_enabled: false 2 | contact_links: 3 | - name: Getting Help on IPFS 4 | url: https://ipfs.io/help 5 | about: All information about how and where to get help on IPFS. 6 | - name: IPFS Official Forum 7 | url: https://discuss.ipfs.io 8 | about: Please post general questions, support requests, and discussions here. 9 | -------------------------------------------------------------------------------- /.github/ISSUE_TEMPLATE/open_an_issue.md: -------------------------------------------------------------------------------- 1 | --- 2 | name: Open an issue 3 | about: Only for actionable issues relevant to this repository. 4 | title: '' 5 | labels: need/triage 6 | assignees: '' 7 | 8 | --- 9 | 20 | -------------------------------------------------------------------------------- /.github/config.yml: -------------------------------------------------------------------------------- 1 | # Configuration for welcome - https://github.com/behaviorbot/welcome 2 | 3 | # Configuration for new-issue-welcome - https://github.com/behaviorbot/new-issue-welcome 4 | # Comment to be posted to on first time issues 5 | newIssueWelcomeComment: > 6 | Thank you for submitting your first issue to this repository! A maintainer 7 | will be here shortly to triage and review. 8 | 9 | In the meantime, please double-check that you have provided all the 10 | necessary information to make this process easy! Any information that can 11 | help save additional round trips is useful! We currently aim to give 12 | initial feedback within **two business days**. If this does not happen, feel 13 | free to leave a comment. 14 | 15 | Please keep an eye on how this issue will be labeled, as labels give an 16 | overview of priorities, assignments and additional actions requested by the 17 | maintainers: 18 | 19 | - "Priority" labels will show how urgent this is for the team. 20 | - "Status" labels will show if this is ready to be worked on, blocked, or in progress. 21 | - "Need" labels will indicate if additional input or analysis is required. 22 | 23 | Finally, remember to use https://discuss.ipfs.io if you just need general 24 | support. 25 | 26 | # Configuration for new-pr-welcome - https://github.com/behaviorbot/new-pr-welcome 27 | # Comment to be posted to on PRs from first time contributors in your repository 28 | newPRWelcomeComment: > 29 | Thank you for submitting this PR! 30 | 31 | A maintainer will be here shortly to review it. 32 | 33 | We are super grateful, but we are also overloaded! Help us by making sure 34 | that: 35 | 36 | * The context for this PR is clear, with relevant discussion, decisions 37 | and stakeholders linked/mentioned. 38 | 39 | * Your contribution itself is clear (code comments, self-review for the 40 | rest) and in its best form. Follow the [code contribution 41 | guidelines](https://github.com/ipfs/community/blob/master/CONTRIBUTING.md#code-contribution-guidelines) 42 | if they apply. 43 | 44 | Getting other community members to do a review would be great help too on 45 | complex PRs (you can ask in the chats/forums). If you are unsure about 46 | something, just leave us a comment. 47 | 48 | Next steps: 49 | 50 | * A maintainer will triage and assign priority to this PR, commenting on 51 | any missing things and potentially assigning a reviewer for high 52 | priority items. 53 | 54 | * The PR gets reviews, discussed and approvals as needed. 55 | 56 | * The PR is merged by maintainers when it has been approved and comments addressed. 57 | 58 | We currently aim to provide initial feedback/triaging within **two business 59 | days**. Please keep an eye on any labelling actions, as these will indicate 60 | priorities and status of your contribution. 61 | 62 | We are very grateful for your contribution! 63 | 64 | 65 | # Configuration for first-pr-merge - https://github.com/behaviorbot/first-pr-merge 66 | # Comment to be posted to on pull requests merged by a first time user 67 | # Currently disabled 68 | #firstPRMergeComment: "" 69 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | dht-node 2 | -------------------------------------------------------------------------------- /.travis.yml: -------------------------------------------------------------------------------- 1 | os: 2 | - linux 3 | 4 | language: go 5 | 6 | go: 7 | - 1.13.x 8 | 9 | env: 10 | global: 11 | - BUILD_DEPTYPE=gomod 12 | matrix: 13 | - GOTFLAGS="-race" 14 | - GOTFLAGS="-race -tags=openssl" 15 | 16 | 17 | # disable travis install 18 | install: 19 | - true 20 | 21 | script: 22 | - bash <(curl -s https://raw.githubusercontent.com/ipfs/ci-helpers/master/travis-ci/run-standard-tests.sh) 23 | 24 | 25 | cache: 26 | directories: 27 | - $GOPATH/pkg/mod 28 | - $HOME/.cache/go-build 29 | 30 | notifications: 31 | email: false 32 | -------------------------------------------------------------------------------- /Dockerfile: -------------------------------------------------------------------------------- 1 | FROM golang:1.12-stretch 2 | 3 | EXPOSE 10000-12000 4 | 5 | COPY . /dht-node 6 | 7 | RUN cd /dht-node && go build 8 | 9 | CMD ["/dht-node/dht-node"] 10 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | The MIT License (MIT) 2 | 3 | Copyright (c) 2017 Whyrusleeping 4 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy 6 | of this software and associated documentation files (the "Software"), to deal 7 | in the Software without restriction, including without limitation the rights 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 | copies of the Software, and to permit persons to whom the Software is 10 | furnished to do so, subject to the following conditions: 11 | 12 | The above copyright notice and this permission notice shall be included in 13 | all copies or substantial portions of the Software. 14 | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 21 | THE SOFTWARE. 22 | -------------------------------------------------------------------------------- /Makefile: -------------------------------------------------------------------------------- 1 | all: 2 | go build -tags=openssl 3 | 4 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | ## This repository has been archived! 2 | 3 | *This IPFS-related repository has been archived, and all issues are therefore frozen*. If you want to ask a question or open/continue a discussion related to this repo, please visit the [official IPFS forums](https://discuss.ipfs.io). 4 | 5 | We archive repos for one or more of the following reasons: 6 | 7 | - Code or content is unmaintained, and therefore might be broken 8 | - Content is outdated, and therefore may mislead readers 9 | - Code or content evolved into something else and/or has lived on in a different place 10 | - The repository or project is not active in general 11 | 12 | Please note that in order to keep the primary IPFS GitHub org tidy, most archived repos are moved into the [ipfs-inactive](https://github.com/ipfs-inactive) org. 13 | 14 | If you feel this repo should **not** be archived (or portions of it should be moved to a non-archived repo), please [reach out](https://ipfs.io/help) and let us know. Archiving can always be reversed if needed. 15 | 16 | --- 17 | 18 | # Libp2p DHT Node 19 | Run a libp2p dht node for the good of the network! 20 | 21 | ## Installation 22 | ``` 23 | [openssl support (lower CPU usage)] 24 | go get -u -tags=openssl github.com/ipfs/dht-node 25 | 26 | [standard (sub-optimal)] 27 | go get -u github.com/ipfs/dht-node 28 | ``` 29 | 30 | ## Usage 31 | `dht-node` has two modes. A 'single dht' mode that has a nicer UI, this is intended to be run in a tmux window or something so you can see statistics about your contribution to the network. 32 | 33 | The second mode is called 'many mode'. Passing the `-many=N` allows you to run N dhts at a time in the same process. It periodically prints out a status line with information about total peers, uptime, and memory usage. 34 | 35 | ## Best Practices 36 | Try to only run a dht-node on machines with public IP addresses. Having more 37 | dht nodes behind NATs makes dht queries in general slower, as connecting in 38 | generally takes longer and sometimes doesnt even work (resulting in a timeout). 39 | 40 | When running with `-many`, please make sure to bump the ulimit to something 41 | fairly high. Expect ~500 connections per node youre running (so with 42 | `-many=10`, try setting `ulimit -n 5000`) 43 | 44 | ## License 45 | MIT - @whyrusleeping 46 | -------------------------------------------------------------------------------- /go.mod: -------------------------------------------------------------------------------- 1 | module github.com/ipfs/dht-node 2 | 3 | require ( 4 | contrib.go.opencensus.io/exporter/prometheus v0.1.0 5 | github.com/axiomhq/hyperloglog v0.0.0-20190607114936-323ed515b11c 6 | github.com/dustin/go-humanize v1.0.0 7 | github.com/golang/snappy v0.0.1 // indirect 8 | github.com/ipfs/go-datastore v0.3.1 9 | github.com/ipfs/go-ds-leveldb v0.4.0 10 | github.com/ipfs/go-ipns v0.0.2 11 | github.com/ipfs/go-log v0.0.1 12 | github.com/libp2p/go-libp2p v0.5.1-0.20191230184347-6dbc0b2b46ba 13 | github.com/libp2p/go-libp2p-circuit v0.1.4 14 | github.com/libp2p/go-libp2p-connmgr v0.2.1 15 | github.com/libp2p/go-libp2p-core v0.3.1-0.20191230184106-204a57d1afe1 16 | github.com/libp2p/go-libp2p-kad-dht v0.4.2-0.20191230184437-fd2e9b7e3db2 17 | github.com/libp2p/go-libp2p-peerstore v0.1.4 18 | github.com/libp2p/go-libp2p-record v0.1.2 19 | github.com/mattn/go-colorable v0.1.2 // indirect 20 | github.com/multiformats/go-multiaddr v0.2.0 21 | github.com/opentracing/opentracing-go v1.1.0 // indirect 22 | github.com/prometheus/client_golang v1.2.1 23 | go.opencensus.io v0.22.2 24 | ) 25 | 26 | go 1.12 27 | -------------------------------------------------------------------------------- /go.sum: -------------------------------------------------------------------------------- 1 | cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= 2 | contrib.go.opencensus.io/exporter/prometheus v0.1.0 h1:SByaIoWwNgMdPSgl5sMqM2KDE5H/ukPWBRo314xiDvg= 3 | contrib.go.opencensus.io/exporter/prometheus v0.1.0/go.mod h1:cGFniUXGZlKRjzOyuZJ6mgB+PgBcCIa79kEKR8YCW+A= 4 | github.com/AndreasBriese/bbloom v0.0.0-20180913140656-343706a395b7/go.mod h1:bOvUY6CB00SOBii9/FifXqc0awNKxLFCL/+pkDPuyl8= 5 | github.com/AndreasBriese/bbloom v0.0.0-20190306092124-e2d15f34fcf9/go.mod h1:bOvUY6CB00SOBii9/FifXqc0awNKxLFCL/+pkDPuyl8= 6 | github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU= 7 | github.com/Kubuxu/go-more-timers v0.0.2 h1:crCnqFrHgX0V5LlCUGN9Z1EpoiOkgukTUSvnP9PA0CA= 8 | github.com/Kubuxu/go-more-timers v0.0.2/go.mod h1:dtBio+tdzhJCqphlKGXXwP8ykW87aRXJMIurME30E3c= 9 | github.com/Kubuxu/go-os-helper v0.0.1/go.mod h1:N8B+I7vPCT80IcP58r50u4+gEEcsZETFUpAzWW2ep1Y= 10 | github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU= 11 | github.com/aead/siphash v1.0.1/go.mod h1:Nywa3cDsYNNK3gaciGTWPwHt0wlpNV15vwmswBAUSII= 12 | github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc= 13 | github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc= 14 | 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v0.0.0-20190826153040-b9b60ed33aa9/go.mod h1:j4l84WPFclQPj320J9gp0XwNKBb3U0zt5CBqjPp22G4= 460 | github.com/whyrusleeping/multiaddr-filter v0.0.0-20160516205228-e903e4adabd7 h1:E9S12nwJwEOXe2d6gT6qxdvqMnNq+VnSsKPgm2ZZNds= 461 | github.com/whyrusleeping/multiaddr-filter v0.0.0-20160516205228-e903e4adabd7/go.mod h1:X2c0RVCI1eSUFI8eLcY3c0423ykwiUdxLJtkDvruhjI= 462 | github.com/x-cray/logrus-prefixed-formatter v0.5.2/go.mod h1:2duySbKsL6M18s5GU7VPsoEPHyzalCE06qoARUCeBBE= 463 | github.com/xordataexchange/crypt v0.0.3-0.20170626215501-b2862e3d0a77/go.mod h1:aYKd//L2LvnjZzWKhF00oedf4jCCReLcmhLdhm1A27Q= 464 | go.opencensus.io v0.21.0/go.mod h1:mSImk1erAIZhrmZN+AvHh14ztQfjbGwt4TtuofqLduU= 465 | go.opencensus.io v0.22.1 h1:8dP3SGL7MPB94crU3bEPplMPe83FI4EouesJUeFHv50= 466 | go.opencensus.io v0.22.1/go.mod h1:Ap50jQcDJrx6rB6VgeeFPtuPIf3wMRvRfrfYDO6+BmA= 467 | go.opencensus.io v0.22.2 h1:75k/FF0Q2YM8QYo07VPddOLBslDt1MZOdEslOHvmzAs= 468 | go.opencensus.io v0.22.2/go.mod h1:yxeiOL68Rb0Xd1ddK5vPZ/oVn4vY4Ynel7k9FzqtOIw= 469 | golang.org/x/crypto v0.0.0-20170930174604-9419663f5a44/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4= 470 | golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4= 471 | golang.org/x/crypto v0.0.0-20181203042331-505ab145d0a9/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4= 472 | golang.org/x/crypto v0.0.0-20190211182817-74369b46fc67/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4= 473 | golang.org/x/crypto v0.0.0-20190225124518-7f87c0fbb88b/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4= 474 | golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w= 475 | golang.org/x/crypto v0.0.0-20190426145343-a29dc8fdc734/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI= 476 | golang.org/x/crypto v0.0.0-20190513172903-22d7a77e9e5f/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI= 477 | golang.org/x/crypto v0.0.0-20190611184440-5c40567a22f8/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI= 478 | golang.org/x/crypto v0.0.0-20190618222545-ea8f1a30c443 h1:IcSOAf4PyMp3U3XbIEj1/xJ2BjNN2jWv7JoyOsMxXUU= 479 | golang.org/x/crypto v0.0.0-20190618222545-ea8f1a30c443/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI= 480 | golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550 h1:ObdrDkeb4kJdCP557AjRjq69pTHfNouLtWZG7j9rPN8= 481 | golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI= 482 | golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA= 483 | golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE= 484 | golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU= 485 | golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc= 486 | golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4= 487 | golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4= 488 | golang.org/x/net v0.0.0-20180906233101-161cd47e91fd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4= 489 | golang.org/x/net v0.0.0-20181011144130-49bb7cea24b1/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4= 490 | golang.org/x/net v0.0.0-20181114220301-adae6a3d119a/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4= 491 | golang.org/x/net v0.0.0-20181201002055-351d144fa1fc/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4= 492 | golang.org/x/net v0.0.0-20190213061140-3a22650c66bd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4= 493 | golang.org/x/net v0.0.0-20190227160552-c95aed5357e7/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4= 494 | golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg= 495 | golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg= 496 | golang.org/x/net v0.0.0-20190613194153-d28f0bde5980/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= 497 | golang.org/x/net v0.0.0-20190620200207-3b0461eec859 h1:R/3boaszxrf1GEUWTVDzSKVwLmSJpwZ1yqXm8j0v2QI= 498 | golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= 499 | golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U= 500 | golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= 501 | golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= 502 | golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= 503 | golang.org/x/sync v0.0.0-20190227155943-e225da77a7e6/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= 504 | golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= 505 | golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= 506 | golang.org/x/sys v0.0.0-20180909124046-d0be0721c37e/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= 507 | golang.org/x/sys v0.0.0-20181116152217-5ac8a444bdc5/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= 508 | golang.org/x/sys v0.0.0-20181205085412-a5c9d58dba9a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= 509 | golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= 510 | golang.org/x/sys v0.0.0-20190219092855-153ac476189d/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= 511 | golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223/go.mod 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h1:/XfQ9z7ib8eEJX2hdgFTZJ/ntt0swNk5oYBziWeTCvY= 521 | golang.org/x/sys v0.0.0-20191010194322-b09406accb47/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= 522 | golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ= 523 | golang.org/x/text v0.3.2 h1:tW2bmiBqwgJj/UpqtC8EpXEZVYOwU0yG4iWbprSVAcs= 524 | golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk= 525 | golang.org/x/tools v0.0.0-20180221164845-07fd8470d635/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ= 526 | golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ= 527 | golang.org/x/tools v0.0.0-20181030221726-6c7e314b6563/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ= 528 | golang.org/x/tools v0.0.0-20181130052023-1c3d964395ce/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ= 529 | golang.org/x/tools v0.0.0-20190114222345-bf090417da8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ= 530 | golang.org/x/tools v0.0.0-20190226205152-f727befe758c/go.mod h1:9Yl7xja0Znq3iFh3HoIrodX9oNMXvdceNzlUR8zjMvY= 531 | golang.org/x/tools v0.0.0-20190311212946-11955173bddd h1:/e+gpKk9r3dJobndpTytxS2gOy6m5uvpg+ISQoEcusQ= 532 | golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs= 533 | golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7 h1:9zdDQZ7Thm29KFXgAX/+yaf3eVbP7djjWp/dXAppNCc= 534 | golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= 535 | golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898 h1:/atklqdjdhuosWIl6AIbOeHJjicWYPqR9bpxqxYG2pA= 536 | golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= 537 | google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM= 538 | google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4= 539 | google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc= 540 | google.golang.org/genproto v0.0.0-20180831171423-11092d34479b/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc= 541 | google.golang.org/genproto v0.0.0-20190307195333-5fe7a883aa19/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE= 542 | google.golang.org/genproto v0.0.0-20190425155659-357c62f0e4bb h1:i1Ppqkc3WQXikh8bXiwHqAN5Rv3/qDCcRk0/Otx73BY= 543 | google.golang.org/genproto v0.0.0-20190425155659-357c62f0e4bb/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE= 544 | google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c= 545 | google.golang.org/grpc v1.20.1 h1:Hz2g2wirWK7H0qIIhGIqRGTuMwTE8HEKFnDZZ7lm9NU= 546 | google.golang.org/grpc v1.20.1/go.mod h1:10oTOabMzJvdu6/UiuZezV6QK5dSlG84ov/aaiqXj38= 547 | gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw= 548 | gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= 549 | gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY= 550 | gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= 551 | gopkg.in/fsnotify.v1 v1.4.7 h1:xOHLXZwVvI9hhs+cLKq5+I5onOuwQLhQwiu63xxlHs4= 552 | gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys= 553 | gopkg.in/src-d/go-cli.v0 v0.0.0-20181105080154-d492247bbc0d/go.mod h1:z+K8VcOYVYcSwSjGebuDL6176A1XskgbtNl64NSg+n8= 554 | gopkg.in/src-d/go-log.v1 v1.0.1/go.mod h1:GN34hKP0g305ysm2/hctJ0Y8nWP3zxXXJ8GFabTyABE= 555 | gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ= 556 | gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw= 557 | gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= 558 | gopkg.in/yaml.v2 v2.2.2 h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw= 559 | gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= 560 | honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= 561 | -------------------------------------------------------------------------------- /main.go: -------------------------------------------------------------------------------- 1 | package main 2 | 3 | import ( 4 | "context" 5 | "encoding/json" 6 | "expvar" 7 | "flag" 8 | "fmt" 9 | "io" 10 | "math/rand" 11 | "net/http" 12 | "net/http/pprof" 13 | "os" 14 | "runtime" 15 | "sync" 16 | "sync/atomic" 17 | "time" 18 | 19 | "contrib.go.opencensus.io/exporter/prometheus" 20 | "github.com/axiomhq/hyperloglog" 21 | human "github.com/dustin/go-humanize" 22 | ds "github.com/ipfs/go-datastore" 23 | levelds "github.com/ipfs/go-ds-leveldb" 24 | ipns "github.com/ipfs/go-ipns" 25 | logging "github.com/ipfs/go-log" 26 | logwriter "github.com/ipfs/go-log/writer" 27 | libp2p "github.com/libp2p/go-libp2p" 28 | circuit "github.com/libp2p/go-libp2p-circuit" 29 | connmgr "github.com/libp2p/go-libp2p-connmgr" 30 | crypto "github.com/libp2p/go-libp2p-core/crypto" 31 | host "github.com/libp2p/go-libp2p-core/host" 32 | network "github.com/libp2p/go-libp2p-core/network" 33 | peer "github.com/libp2p/go-libp2p-core/peer" 34 | dht "github.com/libp2p/go-libp2p-kad-dht" 35 | dhtmetrics "github.com/libp2p/go-libp2p-kad-dht/metrics" 36 | dhtopts "github.com/libp2p/go-libp2p-kad-dht/opts" 37 | pstore "github.com/libp2p/go-libp2p-peerstore" 38 | record "github.com/libp2p/go-libp2p-record" 39 | id "github.com/libp2p/go-libp2p/p2p/protocol/identify" 40 | prom "github.com/prometheus/client_golang/prometheus" 41 | "go.opencensus.io/stats/view" 42 | "go.opencensus.io/zpages" 43 | ) 44 | 45 | func init() { 46 | // Allow short keys. Otherwise, we'll refuse connections from the 47 | // bootsrappers and break the network. 48 | // TODO: Remove this when we shut those bootstrappers down. 49 | crypto.MinRsaKeyBits = 1024 50 | } 51 | 52 | var _ = dhtmetrics.DefaultViews 53 | var _ = circuit.P_CIRCUIT 54 | var _ = logwriter.WriterGroup 55 | 56 | var ( 57 | log = logging.Logger("dhtbooster") 58 | defaultKValue = 20 59 | ) 60 | 61 | // Event is an event. 62 | type Event struct { 63 | Event string 64 | System string 65 | Time string 66 | } 67 | 68 | type provInfo struct { 69 | Key string 70 | Duration time.Duration 71 | } 72 | 73 | func waitForNotifications(r io.Reader, provs chan *provInfo, mesout chan string) { 74 | var e map[string]interface{} 75 | dec := json.NewDecoder(r) 76 | for { 77 | err := dec.Decode(&e) 78 | if err != nil { 79 | fmt.Printf("waitForNotifications error: %s\n", err) 80 | close(provs) 81 | return 82 | } 83 | 84 | event := e["Operation"] 85 | if event == "handleAddProvider" { 86 | provs <- &provInfo{ 87 | Key: (e["Tags"].(map[string]interface{}))["key"].(string), 88 | Duration: time.Duration(e["Duration"].(float64)), 89 | } 90 | } 91 | } 92 | } 93 | 94 | func bootstrapper() pstore.PeerInfo { 95 | addr := dht.DefaultBootstrapPeers[rand.Intn(len(dht.DefaultBootstrapPeers))] 96 | ai, err := pstore.InfoFromP2pAddr(addr) 97 | if err != nil { 98 | panic(err) 99 | } 100 | 101 | return *ai 102 | } 103 | 104 | var bootstrapDone int64 105 | 106 | func makeAndStartNode(ds ds.Batching, addr string, relay bool, bucketSize int, limiter chan struct{}) (host.Host, *dht.IpfsDHT, error) { 107 | cmgr := connmgr.NewConnManager(1500, 2000, time.Minute) 108 | 109 | priv, _, _ := crypto.GenerateKeyPair(crypto.Ed25519, 0) 110 | 111 | opts := []libp2p.Option{libp2p.ListenAddrStrings(addr), libp2p.ConnectionManager(cmgr), libp2p.Identity(priv)} 112 | if relay { 113 | opts = append(opts, libp2p.EnableRelay(circuit.OptHop)) 114 | } 115 | 116 | h, err := libp2p.New(context.Background(), opts...) 117 | if err != nil { 118 | panic(err) 119 | } 120 | 121 | d, err := dht.New(context.Background(), h, dhtopts.BucketSize(bucketSize), dhtopts.Datastore(ds), dhtopts.Validator(record.NamespacedValidator{ 122 | "pk": record.PublicKeyValidator{}, 123 | "ipns": ipns.Validator{KeyBook: h.Peerstore()}, 124 | })) 125 | if err != nil { 126 | panic(err) 127 | } 128 | 129 | // bootstrap in the background 130 | // it's safe to start doing this _before_ establishing any connections 131 | // as we'll trigger a boostrap round as soon as we get a connection 132 | // anyways. 133 | d.Bootstrap(context.Background()) 134 | 135 | go func() { 136 | if limiter != nil { 137 | limiter <- struct{}{} 138 | } 139 | 140 | for i := 0; i < 2; i++ { 141 | if err := h.Connect(context.Background(), bootstrapper()); err != nil { 142 | fmt.Println("bootstrap connect failed: ", err) 143 | i-- 144 | } 145 | } 146 | 147 | if limiter != nil { 148 | <-limiter 149 | } 150 | atomic.AddInt64(&bootstrapDone, 1) 151 | 152 | }() 153 | return h, d, nil 154 | } 155 | 156 | func portSelector(beg int) func() int { 157 | port := beg 158 | return func() int { 159 | if port == 0 { 160 | return 0 161 | } 162 | 163 | out := port 164 | port++ 165 | return out + 1 166 | } 167 | } 168 | 169 | func main() { 170 | many := flag.Int("many", -1, "Instead of running one dht, run many!") 171 | dbpath := flag.String("db", "dht-data", "Database folder") 172 | inmem := flag.Bool("mem", false, "Use an in-memory database. This overrides the -db option") 173 | pprofport := flag.Int("pprof-port", -1, "Specify a port to run pprof http server on") 174 | relay := flag.Bool("relay", false, "Enable libp2p circuit relaying for this node") 175 | portBegin := flag.Int("portBegin", 0, "If set, begin port allocation here") 176 | bucketSize := flag.Int("bucketSize", defaultKValue, "Specify the bucket size") 177 | bootstrapConcurency := flag.Int("bootstrapConc", 32, "How many concurrent bootstraps to run") 178 | stagger := flag.Duration("stagger", 0*time.Second, "Duration to stagger nodes starts by") 179 | flag.Parse() 180 | id.ClientVersion = "dhtbooster/2" 181 | 182 | if *relay { 183 | id.ClientVersion += "+relay" 184 | } 185 | 186 | if *pprofport > 0 { 187 | fmt.Printf("Running metrics server on port: %d\n", *pprofport) 188 | go setupMetrics(*pprofport) 189 | } 190 | 191 | getPort := portSelector(*portBegin) 192 | 193 | if *inmem { 194 | *dbpath = "" 195 | } 196 | if *many == -1 { 197 | runSingleDHTWithUI(*dbpath, *relay, *bucketSize) 198 | return 199 | } 200 | 201 | runMany(*dbpath, getPort, *many, *bucketSize, *bootstrapConcurency, *relay, *stagger) 202 | } 203 | 204 | func runMany(dbpath string, getPort func() int, many, bucketSize, bsCon int, relay bool, stagger time.Duration) { 205 | ds, err := levelds.NewDatastore(dbpath, nil) 206 | if err != nil { 207 | panic(err) 208 | } 209 | 210 | start := time.Now() 211 | var hosts []host.Host 212 | var dhts []*dht.IpfsDHT 213 | 214 | var hyperLock sync.Mutex 215 | hyperlog := hyperloglog.New() 216 | var peersConnected int64 217 | 218 | notifiee := &network.NotifyBundle{ 219 | ConnectedF: func(_ network.Network, v network.Conn) { 220 | hyperLock.Lock() 221 | hyperlog.Insert([]byte(v.RemotePeer())) 222 | hyperLock.Unlock() 223 | 224 | atomic.AddInt64(&peersConnected, 1) 225 | }, 226 | DisconnectedF: func(_ network.Network, v network.Conn) { 227 | atomic.AddInt64(&peersConnected, -1) 228 | }, 229 | } 230 | 231 | fmt.Fprintf(os.Stderr, "Running %d DHT Instances:\n", many) 232 | 233 | limiter := make(chan struct{}, bsCon) 234 | for i := 0; i < many; i++ { 235 | time.Sleep(stagger) 236 | fmt.Fprintf(os.Stderr, ".") 237 | 238 | laddr := fmt.Sprintf("/ip4/0.0.0.0/tcp/%d", getPort()) 239 | h, d, err := makeAndStartNode(ds, laddr, relay, bucketSize, limiter) 240 | if err != nil { 241 | panic(err) 242 | } 243 | h.Network().Notify(notifiee) 244 | hosts = append(hosts, h) 245 | dhts = append(dhts, d) 246 | } 247 | fmt.Fprintf(os.Stderr, "\n") 248 | 249 | provs := make(chan *provInfo, 16) 250 | //r, w := io.Pipe() 251 | //logwriter.WriterGroup.AddWriter(w) 252 | //go waitForNotifications(r, provs, nil) 253 | 254 | go func() { 255 | http.HandleFunc("/peers", func(w http.ResponseWriter, r *http.Request) { 256 | var out []peer.AddrInfo 257 | for _, h := range hosts { 258 | out = append(out, peer.AddrInfo{ 259 | ID: h.ID(), 260 | Addrs: h.Addrs(), 261 | }) 262 | } 263 | 264 | json.NewEncoder(w).Encode(out) 265 | }) 266 | 267 | http.ListenAndServe("127.0.0.1:7779", nil) 268 | }() 269 | 270 | totalprovs := 0 271 | reportInterval := time.NewTicker(time.Second * 5) 272 | for { 273 | select { 274 | case _, ok := <-provs: 275 | if !ok { 276 | totalprovs = -1 277 | provs = nil 278 | } else { 279 | totalprovs++ 280 | } 281 | case <-reportInterval.C: 282 | hyperLock.Lock() 283 | uniqpeers := hyperlog.Estimate() 284 | hyperLock.Unlock() 285 | printStatusLine(many, start, atomic.LoadInt64(&peersConnected), uniqpeers, totalprovs) 286 | } 287 | } 288 | } 289 | 290 | func printStatusLine(ndht int, start time.Time, totalpeers int64, uniqpeers uint64, totalprovs int) { 291 | uptime := time.Second * time.Duration(int(time.Since(start).Seconds())) 292 | var mstat runtime.MemStats 293 | runtime.ReadMemStats(&mstat) 294 | 295 | fmt.Fprintf(os.Stderr, "[NumDhts: %d, Uptime: %s, Memory Usage: %s, TotalPeers: %d/%d, Total Provs: %d, BootstrapsDone: %d]\n", ndht, uptime, human.Bytes(mstat.Alloc), totalpeers, uniqpeers, totalprovs, atomic.LoadInt64(&bootstrapDone)) 296 | } 297 | 298 | func runSingleDHTWithUI(path string, relay bool, bucketSize int) { 299 | ds, err := levelds.NewDatastore(path, nil) 300 | if err != nil { 301 | panic(err) 302 | } 303 | h, _, err := makeAndStartNode(ds, "/ip4/0.0.0.0/tcp/19264", relay, bucketSize, nil) 304 | if err != nil { 305 | panic(err) 306 | } 307 | 308 | uniqpeers := make(map[peer.ID]struct{}) 309 | messages := make(chan string, 16) 310 | provs := make(chan *provInfo, 16) 311 | //r, w := io.Pipe() 312 | //logwriter.WriterGroup.AddWriter(w) 313 | //go waitForNotifications(r, provs, messages) 314 | 315 | ga := &GooeyApp{Title: "Libp2p DHT Node", Log: NewLog(15, 15)} 316 | ga.NewDataLine(3, "Peer ID", h.ID().Pretty()) 317 | econs := ga.NewDataLine(4, "Connections", "0") 318 | uniqprs := ga.NewDataLine(5, "Unique Peers Seen", "0") 319 | emem := ga.NewDataLine(6, "Memory Allocated", "0MB") 320 | eprov := ga.NewDataLine(7, "Stored Provider Records", "0") 321 | eprlat := ga.NewDataLine(8, "Store Provider Latency", "0s") 322 | etime := ga.NewDataLine(9, "Uptime", "0h 0m 0s") 323 | ga.Print() 324 | mt := time.NewTicker(time.Second * 3) 325 | second := time.NewTicker(time.Second) 326 | start := time.Now() 327 | var totalprovs int 328 | var totalprovtime time.Duration 329 | for { 330 | select { 331 | case m := <-messages: 332 | ga.Log.Add(m) 333 | ga.Log.Print() 334 | case <-mt.C: 335 | ga.Print() 336 | var mstat runtime.MemStats 337 | runtime.ReadMemStats(&mstat) 338 | emem.SetVal(human.Bytes(mstat.Alloc)) 339 | peers := h.Network().Peers() 340 | econs.SetVal(fmt.Sprintf("%d peers", len(peers))) 341 | for _, p := range peers { 342 | uniqpeers[p] = struct{}{} 343 | } 344 | uniqprs.SetVal(fmt.Sprint(len(uniqpeers))) 345 | case p := <-provs: 346 | totalprovs++ 347 | totalprovtime += p.Duration 348 | eprov.SetVal(fmt.Sprint(totalprovs)) 349 | eprlat.SetVal(fmt.Sprint(totalprovtime / time.Duration(totalprovs))) 350 | case <-second.C: 351 | t := time.Since(start) 352 | h := int(t.Hours()) 353 | m := int(t.Minutes()) % 60 354 | s := int(t.Seconds()) % 60 355 | etime.SetVal(fmt.Sprintf("%dh %dm %ds", h, m, s)) 356 | } 357 | } 358 | } 359 | 360 | func setupMetrics(port int) error { 361 | // setup Prometheus 362 | registry := prom.NewRegistry() 363 | goCollector := prom.NewGoCollector() 364 | procCollector := prom.NewProcessCollector(prom.ProcessCollectorOpts{}) 365 | registry.MustRegister(goCollector, procCollector) 366 | pe, err := prometheus.NewExporter(prometheus.Options{ 367 | Namespace: "dht_node", 368 | Registry: registry, 369 | }) 370 | if err != nil { 371 | return err 372 | } 373 | 374 | _ = view.RegisterExporter 375 | /* Disabling opencensus for now, it allocates too much 376 | // register prometheus with opencensus 377 | view.RegisterExporter(pe) 378 | view.SetReportingPeriod(2) 379 | 380 | // register the metrics views of interest 381 | if err := view.Register(dhtmetrics.DefaultViews...); err != nil { 382 | return err 383 | } 384 | */ 385 | 386 | go func() { 387 | mux := http.NewServeMux() 388 | zpages.Handle(mux, "/debug") 389 | mux.Handle("/metrics", pe) 390 | mux.Handle("/debug/vars", expvar.Handler()) 391 | 392 | mux.HandleFunc("/debug/pprof/", pprof.Index) 393 | mux.HandleFunc("/debug/pprof/cmdline", pprof.Cmdline) 394 | mux.HandleFunc("/debug/pprof/profile", pprof.Profile) 395 | mux.HandleFunc("/debug/pprof/symbol", pprof.Symbol) 396 | mux.HandleFunc("/debug/pprof/trace", pprof.Trace) 397 | 398 | if err := http.ListenAndServe(fmt.Sprintf("0.0.0.0:%d", port), mux); err != nil { 399 | log.Fatalf("Failed to run Prometheus /metrics endpoint: %v", err) 400 | } 401 | }() 402 | return nil 403 | } 404 | -------------------------------------------------------------------------------- /ui.go: -------------------------------------------------------------------------------- 1 | package main 2 | 3 | import ( 4 | "fmt" 5 | "strings" 6 | 7 | human "github.com/dustin/go-humanize" 8 | net "github.com/libp2p/go-libp2p-core/network" 9 | ma "github.com/multiformats/go-multiaddr" 10 | ) 11 | 12 | const ( 13 | QClrLine = "\033[K" 14 | QReset = "\033[2J" 15 | ) 16 | 17 | /* 18 | Move the cursor up N lines: 19 | \033[A 20 | - Move the cursor down N lines: 21 | \033[B 22 | - Move the cursor forward N columns: 23 | \033[C 24 | - Move the cursor backward N columns: 25 | \033[D 26 | */ 27 | 28 | const ( 29 | Clear = 0 30 | ) 31 | 32 | const ( 33 | Black = 30 + iota 34 | Red 35 | Green 36 | Yellow 37 | Blue 38 | Magenta 39 | Cyan 40 | LightGray 41 | ) 42 | 43 | const ( 44 | LightBlue = 94 45 | ) 46 | 47 | func color(color int, s string) string { 48 | return fmt.Sprintf("\x1b[%dm%s\x1b[0m", color, s) 49 | } 50 | 51 | const width = 25 52 | 53 | func padPrint(line int, label, value string) { 54 | putMessage(line, fmt.Sprintf("%s%s%s", label, strings.Repeat(" ", width-len(label)), value)) 55 | } 56 | 57 | func putMessage(line int, mes string) { 58 | fmt.Printf("\033[%d;0H%s%s", line, QClrLine, mes) 59 | } 60 | 61 | func printDataSharedLine(line int, bup int, totup int64, rateup float64) { 62 | pad := " " 63 | a := fmt.Sprintf("%d ", bup)[:12] 64 | b := (human.Bytes(uint64(totup)) + pad)[:12] 65 | c := (human.Bytes(uint64(rateup)) + "/s" + pad)[:12] 66 | 67 | padPrint(line, "", a+b+c) 68 | } 69 | 70 | type GooeyApp struct { 71 | Title string 72 | DataFields []*DataLine 73 | Log *Log 74 | } 75 | 76 | func (a *GooeyApp) Print() { 77 | fmt.Println(QReset) 78 | putMessage(1, a.Title) 79 | for _, dl := range a.DataFields { 80 | dl.Print() 81 | } 82 | a.Log.Print() 83 | } 84 | 85 | func (a *GooeyApp) NewDataLine(line int, label, defval string) *DataLine { 86 | dl := &DataLine{ 87 | Default: defval, 88 | Label: label, 89 | Line: line, 90 | } 91 | a.DataFields = append(a.DataFields, dl) 92 | 93 | return dl 94 | } 95 | 96 | type DataLine struct { 97 | Label string 98 | Line int 99 | Default string 100 | LastVal string 101 | } 102 | 103 | func (dl *DataLine) SetVal(s string) { 104 | dl.LastVal = s 105 | dl.Print() 106 | } 107 | func (dl *DataLine) Print() { 108 | s := dl.Default 109 | if dl.LastVal != "" { 110 | s = dl.LastVal 111 | } 112 | 113 | padPrint(dl.Line, dl.Label, s) 114 | } 115 | 116 | type Log struct { 117 | Size int 118 | StartLine int 119 | Messages []string 120 | beg int 121 | end int 122 | } 123 | 124 | func NewLog(line, size int) *Log { 125 | return &Log{ 126 | Size: size, 127 | StartLine: line, 128 | Messages: make([]string, size), 129 | end: -1, 130 | } 131 | } 132 | 133 | func (l *Log) Add(m string) { 134 | l.end = (l.end + 1) % l.Size 135 | if l.Messages[l.end] != "" { 136 | l.beg++ 137 | } 138 | l.Messages[l.end] = m 139 | } 140 | 141 | func (l *Log) Print() { 142 | for i := 0; i < l.Size; i++ { 143 | putMessage(l.StartLine+i, l.Messages[(l.beg+i)%l.Size]) 144 | } 145 | } 146 | 147 | type LogNotifee struct { 148 | addMes chan<- string 149 | } 150 | 151 | func (ln *LogNotifee) Listen(net.Network, ma.Multiaddr) {} 152 | func (ln *LogNotifee) ListenClose(net.Network, ma.Multiaddr) {} 153 | func (ln *LogNotifee) Connected(_ net.Network, c net.Conn) { 154 | ln.addMes <- fmt.Sprintf("New connection from %s", c.RemotePeer().Pretty()) 155 | } 156 | 157 | func (ln *LogNotifee) Disconnected(_ net.Network, c net.Conn) { 158 | ln.addMes <- fmt.Sprintf("Lost connection to %s", c.RemotePeer().Pretty()) 159 | } 160 | 161 | func (ln *LogNotifee) OpenedStream(net.Network, net.Stream) {} 162 | func (ln *LogNotifee) ClosedStream(net.Network, net.Stream) {} 163 | --------------------------------------------------------------------------------