overleaf/services/web/frontend/js/features/pdf-preview/util/output-files.js

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import getMeta from '../../../utils/meta'
import HumanReadableLogs from '../../../ide/human-readable-logs/HumanReadableLogs'
import BibLogParser from '../../../ide/log-parser/bib-log-parser'
import { v4 as uuid } from 'uuid'
import { enablePdfCaching } from './pdf-caching-flags'
// Warnings that may disappear after a second LaTeX pass
const TRANSIENT_WARNING_REGEX = /^(Reference|Citation).+undefined on input line/
export function handleOutputFiles(outputFiles, projectId, data) {
const outputFile = outputFiles.get('output.pdf')
if (!outputFile) return null
// build the URL for viewing the PDF in the preview UI
const params = new URLSearchParams({
compileGroup: data.compileGroup,
})
if (data.clsiServerId) {
params.set('clsiserverid', data.clsiServerId)
}
if (enablePdfCaching) {
// Tag traffic that uses the pdf caching logic.
params.set('enable_pdf_caching', 'true')
}
outputFile.pdfUrl = `${buildURL(
outputFile,
data.pdfDownloadDomain
)}?${params}`
// build the URL for downloading the PDF
params.set('popupDownload', 'true') // save PDF download as file
outputFile.pdfDownloadUrl = `/download/project/${projectId}/build/${outputFile.build}/output/output.pdf?${params}`
return outputFile
}
export const handleLogFiles = async (outputFiles, data, signal) => {
const result = {
log: null,
logEntries: {
errors: [],
warnings: [],
typesetting: [],
},
}
function accumulateResults(newEntries, type) {
for (const key in result.logEntries) {
if (newEntries[key]) {
for (const entry of newEntries[key]) {
if (type) {
entry.type = newEntries.type
}
if (entry.file) {
entry.file = normalizeFilePath(entry.file)
}
entry.key = uuid()
}
result.logEntries[key].push(...newEntries[key])
}
}
}
const logFile = outputFiles.get('output.log')
if (logFile) {
try {
const response = await fetch(buildURL(logFile, data.pdfDownloadDomain), {
signal,
})
result.log = await response.text()
let { errors, warnings, typesetting } = HumanReadableLogs.parse(
result.log,
{
ignoreDuplicates: true,
oldRegexes:
getMeta('ol-splitTestVariants')?.['latex-log-parser'] !== 'new',
}
)
if (data.status === 'stopped-on-first-error') {
// Hide warnings that could disappear after a second pass
warnings = warnings.filter(warning => !isTransientWarning(warning))
}
accumulateResults({ errors, warnings, typesetting })
} catch (e) {
console.warn(e) // ignore failure to fetch/parse the log file, but log a warning
}
}
const blgFiles = []
for (const [filename, file] of outputFiles) {
if (filename.endsWith('.blg')) {
blgFiles.push(file)
}
}
for (const blgFile of blgFiles) {
try {
const response = await fetch(buildURL(blgFile, data.pdfDownloadDomain), {
signal,
})
const log = await response.text()
try {
const { errors, warnings } = new BibLogParser(log, {
maxErrors: 100,
}).parse()
accumulateResults({ errors, warnings }, 'BibTeX:')
} catch (e) {
// BibLog parsing errors are ignored
}
} catch (e) {
console.warn(e) // ignore failure to fetch/parse the log file, but log a warning
}
}
result.logEntries.all = [
...result.logEntries.errors,
...result.logEntries.warnings,
...result.logEntries.typesetting,
]
return result
}
export function buildLogEntryAnnotations(entries, fileTreeManager) {
const rootDocDirname = fileTreeManager.getRootDocDirname()
const logEntryAnnotations = {}
for (const entry of entries) {
if (entry.file) {
entry.file = normalizeFilePath(entry.file, rootDocDirname)
const entity = fileTreeManager.findEntityByPath(entry.file)
if (entity) {
if (!(entity.id in logEntryAnnotations)) {
logEntryAnnotations[entity.id] = []
}
logEntryAnnotations[entity.id].push({
row: entry.line - 1,
type: entry.level === 'error' ? 'error' : 'warning',
text: entry.message,
source: 'compile', // NOTE: this is used in Ace for filtering the annotations
})
}
}
}
return logEntryAnnotations
}
function buildURL(file, pdfDownloadDomain) {
if (file.build && pdfDownloadDomain) {
// Downloads from the compiles domain must include a build id.
// The build id is used implicitly for access control.
return `${pdfDownloadDomain}${file.url}`
}
// Go through web instead, which uses mongo for checking project access.
return `${window.origin}${file.url}`
}
function normalizeFilePath(path, rootDocDirname) {
path = path.replace(/\/\//g, '/')
path = path.replace(
/^.*\/compiles\/[0-9a-f]{24}(-[0-9a-f]{24})?\/(\.\/)?/,
''
)
path = path.replace(/^\/compile\//, '')
if (rootDocDirname) {
path = path.replace(/^\.\//, rootDocDirname + '/')
}
return path
}
function isTransientWarning(warning) {
return TRANSIENT_WARNING_REGEX.test(warning.message)
}