redirecter for ao3 that adds opengraph metadata
veryroundbird.house
1import DOM from "fauxdom"
2import { readFile } from 'node:fs/promises'
3import querystring from 'node:querystring'
4import { join } from 'node:path'
5import themes from '@/lib/themes.js'
6import baseFonts from '@/lib/baseFonts.js'
7import titleFonts from '@/lib/titleFonts.js'
8
9const getWork = async (workId, archive = null) => {
10 const domainParam = archive ? `?archive=${archive}` : ''
11 const data = await fetch(`http://${process.env.DOMAIN}/api/works/${workId}${domainParam}`)
12 const work = await data.json()
13 return work
14}
15
16const getHighestRating = async (works, archive = null) => {
17 const ratings = await Promise.all(works.map(async (w) => {
18 const work = await getWork(w.id, archive)
19 return work.rating
20 }))
21 if (ratings.includes("Not Rated")) {
22 return "NR"
23 } else if (ratings.includes("Explicit")) {
24 return "E"
25 } else if (ratings.includes("Mature")) {
26 return "M"
27 } else if (ratings.includes("Teen")) {
28 return "T"
29 }
30 return "G"
31}
32
33const getHighestWarning = async (works, archive = null) => {
34 const warnings = await Promise.all(works.map(async (w) => {
35 const work = await getWork(w.id, archive)
36 return work.tags.warnings
37 }))
38 const warningsUnique = warnings.reduce((a, b) => { return a.concat(b) }).filter((w, i) => { return i === warnings.indexOf(w) })
39 if (warningsUnique.length === 1 && warningsUnique[0] === "Creator Chose Not To Use Archive Warnings") {
40 return "CNTW"
41 } else if (warningsUnique.length === 1 && warningsUnique[0] === "No Archive Warnings Apply") {
42 return "NW"
43 }
44 return "W"
45}
46
47const getCategory = async (works, archive = null) => {
48 const categories = await Promise.all(works.map(async (w) => {
49 const work = await getWork(w.id, archive)
50 return work.category
51 }))
52 const categoriesJoined = categories.reduce((a, b) => { return a.concat(b) })
53 const categoriesUnique = categoriesJoined.filter((w, i) => { return i === categoriesJoined.indexOf(w) })
54
55 if (categoriesUnique.length === 1) {
56 if (categoriesUnique[0] === "F/F") return "F"
57 if (categoriesUnique[0] === "M/M") return "M"
58 if (categoriesUnique[0] === "F/M") return "FM"
59 if (categoriesUnique[0] === "Gen") return "G"
60 if (categoriesUnique[0] === "Multi") return "MX"
61 if (categoriesUnique[0] === "Other") return "O"
62 }
63 return "MX"
64}
65
66const sanitizeProps = (props) => {
67 let propsParsed = {}
68 Object.keys(props).forEach((pr) => {
69 if (props[pr] === 'true') {
70 propsParsed[pr] = true
71 return
72 } else if (props[pr] === 'false') {
73 propsParsed[pr] = false
74 return
75 } else if (typeof parseInt(props[pr]) === 'Number') {
76 propsParsed[pr] = parseInt(props[pr])
77 return
78 }
79 propsParsed[pr] = props[pr]
80 })
81 return propsParsed
82}
83
84export default async function sanitizeData ({ type, data, props}) {
85 const propsParsed = sanitizeProps(querystring.parse(props.toString()))
86 const archive = props.has('archive') ? props.get('archive') : 'https://archiveofourown.org'
87 const baseFont = propsParsed.baseFont ? propsParsed.baseFont : process.env.DEFAULT_BASE_FONT
88 const baseFontData = baseFonts[baseFont]
89 const titleFont = propsParsed.titleFont ? propsParsed.titleFont : process.env.DEFAULT_TITLE_FONT
90 const titleFontData = titleFonts[titleFont]
91 const themeData = propsParsed.theme ? themes[propsParsed.theme] : themes[process.env.DEFAULT_THEME]
92 const parentWork = type === 'work' && data.chapterInfo ? await getWork(data.id, archive) : null
93 const bfs = await Promise.all(baseFontData.defs.map(async (bf) => {
94 return {
95 name: baseFontData.displayName,
96 data: await readFile(
97 join(process.cwd(), bf.path)
98 ),
99 style: bf.style,
100 weight: bf.weight
101 }
102 })).then(x => x)
103 const tfs = await Promise.all(titleFontData.defs.map(async (tf) => {
104 return {
105 name: titleFontData.displayName,
106 data: await readFile(
107 join(process.cwd(), tf.path)
108 ),
109 style: tf.style,
110 weight: tf.weight
111 }
112 })).then(x => x)
113 const authorsFormatted = data.authors
114 ? data.authors.map((a) => {
115 if (a.anonymous) return "Anonymous"
116 if (a.pseud !== a.username) return `${a.pseud} (${a.username})`
117 return a.username
118 })
119 : []
120 const rating = type === 'work' ? await getHighestRating([data], archive) : await getHighestRating(data.works, archive)
121 const warning = type === 'work' ? await getHighestWarning([data], archive) : await getHighestWarning(data.works, archive)
122 const category = type === 'work' ? await getCategory([data], archive) : await getCategory(data.works, archive)
123 const authorString = authorsFormatted.length > 1
124 ? authorsFormatted.slice(0, -1).join(", ") + " & " +
125 authorsFormatted.slice(-1)[0]
126 : authorsFormatted[0]
127 const summaryContent = type === 'work'
128 ? (propsParsed.summaryType === 'chapter' && data.chapterInfo && data.chapterInfo.summary ? data.chapterInfo.summary : (propsParsed.summaryType === 'custom' && propsParsed.customSummary !== '' ? propsParsed.customSummary : (data.summary ? data.summary : (parentWork ? parentWork.summary : ''))))
129 : (propsParsed.summaryType === 'custom' && propsParsed.customSummary !== '' ? propsParsed.customSummary : data.notes)
130 const formatter = new Intl.NumberFormat('en-US')
131 const words = formatter.format(data.words)
132 const summaryDOM = new DOM(summaryContent, {decodeEntities: true});
133 const summaryFormatted = summaryDOM.innerHTML.replace(/\<br(?: \/)?\>/g, "\n").replace(
134 /(<([^>]+)>)/ig,
135 "",
136 ).split("\n")
137 const titleString = type === 'work' ? data.title : data.name
138 const chapterString = data.chapterInfo ? (data.chapterInfo.name
139 ? data.chapterInfo.name
140 : "Chapter " + data.chapterInfo.index) : null
141 const chapterCountString = type === 'work' ? (data.chapters
142 ? data.chapters.published+'/'+(
143 data.chapters.total
144 ? data.chapters.total
145 : '?'
146 )
147 : '') : null
148 const fandomString = type === 'work' ? (
149 data.fandoms.length > 1
150 ? (
151 data.fandoms.length <= 2
152 ? data.fandoms.slice(0, -1).join(", ")+" & "+data.fandoms.slice(-1)
153 : data.fandoms.join(", ")+" (+"+(data.fandoms.length - 2)+")"
154 )
155 : data.fandoms[0]
156 ) : (
157 ''
158 )
159 const charTags = type === 'work' ? data.tags.characters : data.works.map(w => w.tags.characters).reduce((a, b) => { return b ? (a ? a.concat(b) : []) : (a ? a : []) }).filter((w, i) => { return i === data.works.indexOf(w) })
160 const relTags = type === 'work' ? data.tags.relationships : data.works.map(w => w.tags.relationships).reduce((a, b) => { return b ? (a ? a.concat(b) : []) : (a ? a : []) }).filter((w, i) => { return i === data.works.indexOf(w) })
161 const freeTags = type === 'work' ? data.tags.additional : data.works.map(w => w.tags.additional).reduce((a, b) => { return b ? (a ? a.concat(b) : []) : (a ? a : []) }).filter((w, i) => { return i === data.works.indexOf(w) })
162 const warnings = type === 'work' ? data.tags.warnings : data.works.map(w => w.tags.warnings).reduce((a, b) => { return b ? (a ? a.concat(b) : []) : (a ? a : []) }).filter((w, i) => { return i === data.works.indexOf(w) })
163
164 return {
165 topLine: fandomString,
166 titleLine: titleString,
167 authorLine: authorString,
168 chapterLine: chapterString,
169 chapterCount: chapterCountString,
170 words: words,
171 rating: rating,
172 warning: warning,
173 category: category,
174 summary: summaryFormatted,
175 theme: themeData,
176 charTags: charTags,
177 relTags: relTags,
178 freeTags: freeTags,
179 postedAt: type === 'work' ? data.publishedAt : data.startedAt,
180 updatedAt: data.updatedAt,
181 baseFont: baseFont,
182 titleFont: titleFont,
183 props: propsParsed,
184 opts: {
185 fonts: bfs.concat(tfs)
186 }
187 }
188}