added basic support for /@channelname

This commit is contained in:
bill bittner 2017-08-23 12:21:15 -07:00
parent bcf0484b5b
commit 2490d709c9
4 changed files with 190 additions and 73 deletions

View file

@ -1,43 +1,14 @@
const logger = require('winston');
const db = require('../models');
// function determineShortChannelId (name, longChannelId) {
// return new Promise((resolve, reject) => {
// logger.debug('finding short channel id');
// db.sequelize.query(`SELECT claimId, height FROM Certificate WHERE name = '${name}' ORDER BY height;`, { type: db.sequelize.QueryTypes.SELECT })
// .then(result => {
// switch (result.length) {
// case 0:
// return reject(new Error('That is an invalid channel name'));
// default:
// let certificateIndex;
// let shortId = longChannelId.substring(0, 1); // default sort id is the first letter
// let shortIdLength = 0;
// // find the index of this certificate
// certificateIndex = result.findIndex(element => {
// return element.claimId === longChannelId;
// });
// if (certificateIndex < 0) { throw new Error('claimid not found in possible sorted list') }
// // get an array of all certificates with lower height
// let possibleMatches = result.slice(0, certificateIndex);
// // remove certificates with the same prefixes until none are left.
// while (possibleMatches.length > 0) {
// shortIdLength += 1;
// shortId = longChannelId.substring(0, shortIdLength);
// possibleMatches = possibleMatches.filter(element => {
// return (element.claimId.substring(0, shortIdLength) === shortId);
// });
// }
// // return the short Id
// logger.debug('short claim id ===', shortId);
// return resolve(shortId);
// }
// })
// .catch(error => {
// reject(error);
// });
// });
// }
function createOpenGraphInfo ({ fileType, claimId, name, fileName, fileExt }) {
return {
embedUrl : `https://spee.ch/embed/${claimId}/${name}`,
showUrl : `https://spee.ch/${claimId}/${name}`,
source : `https://spee.ch/${claimId}/${name}${fileExt}`,
directFileUrl: `https://spee.ch/media/${fileName}`,
};
}
function getLongChannelId (channelName, channelId) {
if (channelId && (channelId.length === 40)) { // full channel id
@ -108,6 +79,24 @@ function getClaimIdByLongChannelId (channelId, claimName) {
});
}
function getAllChannelClaims (channelId) {
return new Promise((resolve, reject) => {
logger.debug(`finding all claims in channel "${channelId}"`);
db.sequelize.query(`SELECT * FROM Claim WHERE certificateId = '${channelId}' ORDeR BY height DESC;`, { type: db.sequelize.QueryTypes.SELECT })
.then(result => {
switch (result.length) {
case 0:
return resolve(null);
default:
return resolve(result);
}
})
.catch(error => {
reject(error);
});
});
}
function determineShortClaimId (claimId, height, claimList) {
logger.debug('determining short url based on claim id and claim list');
logger.debug('claimlist starting length:', claimList.length);
@ -155,13 +144,42 @@ function determineShortClaimId (claimId, height, claimList) {
}
}
function createOpenGraphInfo ({ fileType, claimId, name, fileName, fileExt }) {
return {
embedUrl : `https://spee.ch/embed/${claimId}/${name}`,
showUrl : `https://spee.ch/${claimId}/${name}`,
source : `https://spee.ch/${claimId}/${name}${fileExt}`,
directFileUrl: `https://spee.ch/media/${fileName}`,
};
function getShortChannelId (channelName, longChannelId) {
return new Promise((resolve, reject) => {
logger.debug('finding short channel id');
db.sequelize.query(`SELECT claimId, height FROM Certificate WHERE name = '${channelName}' ORDER BY height;`, { type: db.sequelize.QueryTypes.SELECT })
.then(result => {
switch (result.length) {
case 0:
return reject(new Error('That is an invalid channel name'));
default:
let certificateIndex;
let shortId = longChannelId.substring(0, 1); // default sort id is the first letter
let shortIdLength = 0;
// find the index of this certificate
certificateIndex = result.findIndex(element => {
return element.claimId === longChannelId;
});
if (certificateIndex < 0) { throw new Error('claimid not found in possible sorted list') }
// get an array of all certificates with lower height
let possibleMatches = result.slice(0, certificateIndex);
// remove certificates with the same prefixes until none are left.
while (possibleMatches.length > 0) {
shortIdLength += 1;
shortId = longChannelId.substring(0, shortIdLength);
possibleMatches = possibleMatches.filter(element => {
return (element.claimId.substring(0, shortIdLength) === shortId);
});
}
// return the short Id
logger.debug('short claim id ===', shortId);
return resolve(shortId);
}
})
.catch(error => {
reject(error);
});
});
}
module.exports = {
@ -300,4 +318,33 @@ module.exports = {
});
});
},
getChannelContents (channelName, channelId) {
return new Promise((resolve, reject) => {
let longChannelId;
let shortChannelId;
// 1. get the long channel Id
getLongChannelId(channelName, channelId)
// 2. get all claims for that channel
.then(result => {
longChannelId = result;
return getShortChannelId(channelName, longChannelId);
})
.then(result => {
shortChannelId = result;
return getAllChannelClaims(longChannelId);
})
.then(allChannelClaims => {
allChannelClaims.forEach(element => {
element['channelName'] = channelName;
element['longChannelId'] = longChannelId;
element['shortChannelId'] = shortChannelId;
element['fileExtension'] = element.contentType.substring(element.contentType.lastIndexOf('/') + 1);
});
return resolve(allChannelClaims);
})
.catch(error => {
reject(error);
});
});
},
};

View file

@ -1,5 +1,5 @@
const logger = require('winston');
const { serveFile, showFile, showFileLite, getShortIdFromClaimId, resolveAgainstClaimTable } = require('../helpers/serveHelpers.js');
const { serveFile, showFile, showFileLite, getShortIdFromClaimId, resolveAgainstClaimTable, getChannelContents } = require('../helpers/serveHelpers.js');
const { getAssetByChannel, getAssetByShortId, getAssetByClaimId, getAssetByName } = require('../controllers/serveController.js');
const { handleRequestError } = require('../helpers/errorHandlers.js');
const { postToStats, sendGoogleAnalytics } = require('../controllers/statsController.js');
@ -169,6 +169,35 @@ module.exports = (app) => {
let name = params.name;
let method;
let fileExtension;
let channelName = null;
let channelId = null;
if (name.charAt(0) === '@') {
channelName = name;
const channelIdIndex = channelName.indexOf(CHANNELID_INDICATOR);
if (channelIdIndex !== -1) {
channelId = channelName.substring(channelIdIndex + 1);
channelName = channelName.substring(0, channelIdIndex);
}
logger.debug('channel name =', channelName);
logger.debug('channel Id =', channelId);
// 1. retrieve the channel contents
getChannelContents(channelName, channelId)
// 2. respond to the request
.then(channelContents => {
if (!channelContents) {
res.status(200).render('noChannel');
} else {
const handlebarsData = {
channelName,
channelContents,
};
res.status(200).render('channel', handlebarsData);
}
})
.catch(error => {
handleRequestError('serve', originalUrl, ip, error, res);
});
} else {
if (name.indexOf('.') !== -1) {
method = SERVE;
if (headers['accept'] && headers['accept'].split(',').includes('text/html')) {
@ -187,7 +216,7 @@ module.exports = (app) => {
logger.debug('method =', method);
// 1. retrieve the asset and information
getAsset(CLAIM_NAME, null, null, null, null, name)
// 2. serve or show
// 2. respond to the request
.then(fileInfo => {
if (!fileInfo) {
res.status(200).render('noClaims');
@ -202,5 +231,6 @@ module.exports = (app) => {
.catch(error => {
handleRequestError('serve', originalUrl, ip, error, res);
});
}
});
};

32
views/channel.handlebars Normal file
View file

@ -0,0 +1,32 @@
<div class="wrapper">
{{> topBar}}
<div>
<h3>{{this.channelName}}</h3>
<p>Below are all the free claims in this channel.</p>
{{#each channelContents}}
<div class="all-claims-item">
{{#ifConditional this.fileType '===' 'video/mp4'}}
<video class="all-claims-img" autoplay controls>
<source src="/{{this.claimId}}/{{this.name}}.{{this.fileExtension}}">
{{!--fallback--}}
Your browser does not support the <code>video</code> element.
</video>
{{else}}
<img class="all-claims-img" src="/{{this.claimId}}/{{this.name}}.{{this.fileExtension}}" />
{{/ifConditional}}
<div class="all-claims-details">
<ul style="list-style-type:none">
<li>Title: {{this.title}}</li>
<li>Description: {{this.description}}</li>
<li>License: {{this.license}}</li>
<li>Link: <a href="/{{this.channelName}}:{{this.shortChannelId}}/{{this.name}}.{{this.fileExtension}}">spee.ch/{{this.channelName}}:{{this.shortChannelId}}/{{this.name}}.{{this.fileExtension}}</a></li>
<li>Claim: {{this.name}}</li>
<li>Claim Id: {{this.claimId}}</li>
</ul>
</div>
</div>
{{/each}}
</div>
{{> footer}}
</div>

View file

@ -0,0 +1,8 @@
<div class="wrapper">
{{> topBar}}
<div>
<h3>No Claims</h3>
<p>There are no free, public assets on this channel.</p>
<p><i>If you think this message is an error, contact us in Slack!</i></p>
</div>
</div>