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refactor: Pre-render TeX + MathML server-side to SVG

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This commit is contained in:
NGPixel
2017-06-24 15:54:31 -04:00
committed by Nicolas Giard
parent 13d355bd1c
commit 3d9aa18c05
20 changed files with 759 additions and 680 deletions
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130
server/libs/entries.js
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@@ -22,7 +22,7 @@ module.exports = {
*
* @return {Object} Entries model instance
*/
init () {
init() {
let self = this
self._repoPath = path.resolve(ROOTPATH, appconfig.paths.repo)
@@ -39,7 +39,7 @@ module.exports = {
* @param {String} entryPath The entry path
* @return {Promise<Boolean>} True if exists, false otherwise
*/
exists (entryPath) {
exists(entryPath) {
let self = this
return self.fetchOriginal(entryPath, {
@@ -62,7 +62,7 @@ module.exports = {
* @param {String} entryPath The entry path
* @return {Promise<Object>} Page Data
*/
fetch (entryPath) {
fetch(entryPath) {
let self = this
let cpath = entryHelper.getCachePath(entryPath)
@@ -97,7 +97,7 @@ module.exports = {
* @param {Object} options The options
* @return {Promise<Object>} Page data
*/
fetchOriginal (entryPath, options) {
fetchOriginal(entryPath, options) {
let self = this
let fpath = entryHelper.getFullPath(entryPath)
@@ -115,43 +115,47 @@ module.exports = {
return fs.statAsync(fpath).then((st) => {
if (st.isFile()) {
return fs.readFileAsync(fpath, 'utf8').then((contents) => {
let htmlProcessor = (options.parseMarkdown) ? mark.parseContent(contents) : Promise.resolve('')
// Parse contents
let pageData = {
markdown: (options.includeMarkdown) ? contents : '',
html: (options.parseMarkdown) ? mark.parseContent(contents) : '',
meta: (options.parseMeta) ? mark.parseMeta(contents) : {},
tree: (options.parseTree) ? mark.parseTree(contents) : []
}
if (!pageData.meta.title) {
pageData.meta.title = _.startCase(entryPath)
}
pageData.meta.path = entryPath
// Get parent
let parentPromise = (options.includeParentInfo) ? self.getParentInfo(entryPath).then((parentData) => {
return (pageData.parent = parentData)
}).catch((err) => { // eslint-disable-line handle-callback-err
return (pageData.parent = false)
}) : Promise.resolve(true)
return parentPromise.then(() => {
// Cache to disk
if (options.cache) {
let cacheData = JSON.stringify(_.pick(pageData, ['html', 'meta', 'tree', 'parent']), false, false, false)
return fs.writeFileAsync(cpath, cacheData).catch((err) => {
winston.error('Unable to write to cache! Performance may be affected.')
winston.error(err)
return true
})
} else {
return true
return htmlProcessor.then(html => {
let pageData = {
markdown: (options.includeMarkdown) ? contents : '',
html,
meta: (options.parseMeta) ? mark.parseMeta(contents) : {},
tree: (options.parseTree) ? mark.parseTree(contents) : []
}
}).return(pageData)
if (!pageData.meta.title) {
pageData.meta.title = _.startCase(entryPath)
}
pageData.meta.path = entryPath
// Get parent
let parentPromise = (options.includeParentInfo) ? self.getParentInfo(entryPath).then((parentData) => {
return (pageData.parent = parentData)
}).catch((err) => { // eslint-disable-line handle-callback-err
return (pageData.parent = false)
}) : Promise.resolve(true)
return parentPromise.then(() => {
// Cache to disk
if (options.cache) {
let cacheData = JSON.stringify(_.pick(pageData, ['html', 'meta', 'tree', 'parent']), false, false, false)
return fs.writeFileAsync(cpath, cacheData).catch((err) => {
winston.error('Unable to write to cache! Performance may be affected.')
winston.error(err)
return true
})
} else {
return true
}
}).return(pageData)
})
})
} else {
return false
@@ -167,7 +171,7 @@ module.exports = {
* @param {String} entryPath The entry path
* @return {Promise<Object|False>} The parent information.
*/
getParentInfo (entryPath) {
getParentInfo(entryPath) {
if (_.includes(entryPath, '/')) {
let parentParts = _.initial(_.split(entryPath, '/'))
let parentPath = _.join(parentParts, '/')
@@ -202,7 +206,7 @@ module.exports = {
* @param {Object} author The author user object
* @return {Promise<Boolean>} True on success, false on failure
*/
update (entryPath, contents, author) {
update(entryPath, contents, author) {
let self = this
let fpath = entryHelper.getFullPath(entryPath)
@@ -228,7 +232,7 @@ module.exports = {
* @param {String} entryPath The entry path
* @return {Promise} Promise of the operation
*/
updateCache (entryPath) {
updateCache(entryPath) {
let self = this
return self.fetchOriginal(entryPath, {
@@ -256,21 +260,21 @@ module.exports = {
return db.Entry.findOneAndUpdate({
_id: content.entryPath
}, {
_id: content.entryPath,
title: content.meta.title || content.entryPath,
subtitle: content.meta.subtitle || '',
parentTitle: content.parent.title || '',
parentPath: parentPath,
isDirectory: false,
isEntry: true
}, {
new: true,
upsert: true
}).then(result => {
let plainResult = result.toObject()
plainResult.text = content.text
return plainResult
})
_id: content.entryPath,
title: content.meta.title || content.entryPath,
subtitle: content.meta.subtitle || '',
parentTitle: content.parent.title || '',
parentPath: parentPath,
isDirectory: false,
isEntry: true
}, {
new: true,
upsert: true
}).then(result => {
let plainResult = result.toObject()
plainResult.text = content.text
return plainResult
})
}).then(result => {
return self.updateTreeInfo().then(() => {
return result
@@ -286,7 +290,7 @@ module.exports = {
*
* @returns {Promise<Boolean>} Promise of the operation
*/
updateTreeInfo () {
updateTreeInfo() {
return db.Entry.distinct('parentPath', { parentPath: { $ne: '' } }).then(allPaths => {
if (allPaths.length > 0) {
return Promise.map(allPaths, pathItem => {
@@ -311,7 +315,7 @@ module.exports = {
* @param {Object} author The author user object
* @return {Promise<Boolean>} True on success, false on failure
*/
create (entryPath, contents, author) {
create(entryPath, contents, author) {
let self = this
return self.exists(entryPath).then((docExists) => {
@@ -338,7 +342,7 @@ module.exports = {
* @param {Object} author The author user object
* @return {Promise<Boolean>} True on success, false on failure
*/
makePersistent (entryPath, contents, author) {
makePersistent(entryPath, contents, author) {
let fpath = entryHelper.getFullPath(entryPath)
return fs.outputFileAsync(fpath, contents).then(() => {
@@ -354,7 +358,7 @@ module.exports = {
* @param {Object} author The author user object
* @return {Promise} Promise of the operation
*/
move (entryPath, newEntryPath, author) {
move(entryPath, newEntryPath, author) {
let self = this
if (_.isEmpty(entryPath) || entryPath === 'home') {
@@ -387,7 +391,7 @@ module.exports = {
* @param {String} entryPath The entry path
* @return {Promise<String>} Starter content
*/
getStarter (entryPath) {
getStarter(entryPath) {
let formattedTitle = _.startCase(_.last(_.split(entryPath, '/')))
return fs.readFileAsync(path.join(SERVERPATH, 'app/content/create.md'), 'utf8').then((contents) => {
@@ -402,7 +406,7 @@ module.exports = {
* @param {Object} usr Current user
* @return {Promise<Array>} List of entries
*/
getFromTree (basePath, usr) {
getFromTree(basePath, usr) {
return db.Entry.find({ parentPath: basePath }, 'title parentPath isDirectory isEntry').sort({ title: 'asc' }).then(results => {
return _.filter(results, r => {
return rights.checkRole('/' + r._id, usr.rights, 'read')
@@ -410,7 +414,7 @@ module.exports = {
})
},
getHistory (entryPath) {
getHistory(entryPath) {
return db.Entry.findOne({ _id: entryPath, isEntry: true }).then(entry => {
if (!entry) { return false }
return git.getHistory(entryPath).then(history => {