Skip to content

Commit

Permalink
fix: PDF renaming bug on SSO page that shows subsidiary legislation a…
Browse files Browse the repository at this point in the history 
…uthorised by a certain statute
  • Loading branch information
@hueyy
hueyy committed Nov 24, 2022
2 parents 3eafb47 + bf90716 commit 75e7ae2
Show file tree
Hide file tree
Showing 2 changed files with 60 additions and 43 deletions.
2 changes: 1 addition & 1 deletion package.json
View file
Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
{
"name": "clerkent",
"version": "3.4.7",
"version": "3.4.8",
"private": true,
"description": "quick search legal search",
"repository": "https://github.com/lacuna-technologies/clerkent.git",
Expand Down
101 changes: 59 additions & 42 deletions src/ContentScript/DownloadInterceptor.ts
View file
Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
import type { Runtime } from 'webextension-polyfill-ts'
import { Messenger, Constants, Helpers, Logger, Finder } from '../utils'
import { Messenger, Constants, Helpers, Finder } from '../utils'

const augmentDownloadButton = (port: Runtime.Port, button: HTMLAnchorElement, fileName: string): void => {
button.addEventListener(`click`, (event: MouseEvent) => {
Expand Down Expand Up @@ -30,14 +30,19 @@ const downloadPDF = (
})
}

const waitForElement = (selector: string) => new Promise(resolve => {
if (document.querySelector(selector)) {
return resolve(document.querySelector(selector))
const waitForElement = (selector: string, multiple: boolean): Promise<Element | NodeListOf<Element>> => new Promise(resolve => {
const getElement = () => multiple
? document.querySelectorAll(selector)
: document.querySelector(selector)
const initialAttempt = getElement()
if (initialAttempt) {
return resolve(initialAttempt)
}

const observer = new MutationObserver(() => {
if (document.querySelector(selector)) {
resolve(document.querySelector(selector))
const attempt = getElement()
if (attempt) {
resolve(attempt)
observer.disconnect()
}
})
Expand All @@ -48,12 +53,12 @@ const waitForElement = (selector: string) => new Promise(resolve => {
})
})

const intercepteLitigationDownloads = async (hostname: string, pathname: string, port: Runtime.Port) => {
const intercepteLitigationDownloads = async (port: Runtime.Port) => {
const { hostname, pathname } = window.location
const iseLitigation = (hostname === `www.elitigation.sg` && (new RegExp(`^/(gdviewer|gd)/s/[0-9]{4}.+$`)).test(pathname))
if(iseLitigation){
const downloadButtonSelector = `.container.body-content > nav a.nav-item.nav-link[href$="/pdf"]`
await waitForElement(downloadButtonSelector)
const downloadButton: HTMLAnchorElement = document.querySelector(downloadButtonSelector)
const downloadButton = await waitForElement(downloadButtonSelector, false)
const citationElement = document.querySelector(`.HN-NeutralCit`) || document.querySelector(`span.Citation.offhyperlink,span.NCitation.offhyperlink`)
const caseNameElement: HTMLElement = document.querySelector(`.HN-CaseName`) || document.querySelector(`h2.title > span.caseTitle`)
const law: Law.Case = {
Expand All @@ -67,17 +72,17 @@ const intercepteLitigationDownloads = async (hostname: string, pathname: string,
type: `case-citation`,
}
const fileName = Helpers.getFileName(law, `Judgment`)
return augmentDownloadButton(port, downloadButton, fileName)
return augmentDownloadButton(port, downloadButton as HTMLAnchorElement, fileName)
}
}

const interceptLawNetDownloads = async (hostname: string, pathname: string, port: Runtime.Port) => {
const interceptLawNetDownloads = async (port: Runtime.Port) => {
const { hostname, pathname } = window.location
const isLawNet = (hostname === `www.lawnet.sg` && pathname === `/lawnet/group/lawnet/page-content`)
const isLawNetCase = document.querySelector(`div.case-reference > ul.statusInfo`) !== null
if (isLawNet && isLawNetCase){
const downloadButtonSelector = `li.iconPDF > a`
await waitForElement(downloadButtonSelector)
const downloadButton: HTMLAnchorElement = document.querySelector(downloadButtonSelector)
const downloadButton = await waitForElement(downloadButtonSelector, false)
const citationElement = [...document.querySelectorAll(`span.Citation.offhyperlink`)].slice(-1)[0]
const caseNameElement = document.querySelector(`span.caseTitle`)
const law: Law.Case = {
Expand All @@ -91,16 +96,16 @@ const interceptLawNetDownloads = async (hostname: string, pathname: string, port
type: `case-citation`,
}
const fileName = Helpers.getFileName(law, `Judgment`)
return augmentDownloadButton(port, downloadButton, fileName)
return augmentDownloadButton(port, downloadButton as HTMLAnchorElement, fileName)
}
}

const interceptOpenLawDownloads = async (hostname: string, pathname: string, port: Runtime.Port) => {
const interceptOpenLawDownloads = async (port: Runtime.Port) => {
const { hostname, pathname } = window.location
const isOpenLaw = (hostname === `www.lawnet.com` && pathname.match(new RegExp(`^/openlaw/cases/citation`)) !== null)
if(isOpenLaw){
const downloadButtonSelector = `li.document-action.download`
await waitForElement(downloadButtonSelector)
const downloadButton: HTMLAnchorElement = document.querySelector(downloadButtonSelector)
const downloadButton = await waitForElement(downloadButtonSelector, false)
const citationElement = document.querySelector(`span.NCitation.offhyperlink`) || document.querySelector(`div.lr_citation_link`)
const caseNameElement = document.querySelector(`span.caseTitle`)
const citation = citationElement.textContent.trim()
Expand All @@ -120,17 +125,17 @@ const interceptOpenLawDownloads = async (hostname: string, pathname: string, por
),
type: `case-citation`,
}
const listener = downloadPDF(port, { doctype: `Judgment`, law })
downloadButton.addEventListener(`click`, listener)
const listener = downloadPDF(port, { doctype: `Judgment`, law });
(downloadButton as HTMLAnchorElement).addEventListener(`click`, listener)
}
}

const interceptAustliiDownloads = async (hostname: string, pathname: string, port: Runtime.Port) => {
const interceptAustliiDownloads = async (port: Runtime.Port) => {
const { hostname, pathname } = window.location
const isAustlii = ([`www.austlii.edu.au`, `www6.austlii.edu.au`, `www8.austlii.edu.au`].includes(hostname) && pathname.match(new RegExp(``)) !== null)
if(isAustlii){
const downloadButtonSelector = `div.side-element.side-download a[href^="/cgi-bin/sign.cgi"]`
await waitForElement(downloadButtonSelector)
const downloadButton: HTMLAnchorElement = document.querySelector(downloadButtonSelector)
const downloadButton = await waitForElement(downloadButtonSelector, true)
const citationElement = document.querySelector(`.ribbon-citation span`)
const caseName = document.querySelector(`title`).textContent.replace(/ \[.*$/, ``).trim()
const law: Law.Case = {
Expand All @@ -144,17 +149,31 @@ const interceptAustliiDownloads = async (hostname: string, pathname: string, por
type: `case-citation`,
}
const fileName = Helpers.getFileName(law, `Judgment`)
return augmentDownloadButton(port, downloadButton, fileName)
return augmentDownloadButton(port, downloadButton as HTMLAnchorElement, fileName)
}
}

const interceptSSODownloads = async (hostname: string, pathname: string, port: Runtime.Port) => {
// eslint-disable-next-line sonarjs/cognitive-complexity
const interceptSSODownloads = async (port: Runtime.Port) => {
const { hostname, pathname, search } = window.location
const isSSO = (hostname === `sso.agc.gov.sg`)
if(isSSO){

const isSubsidiaryLegislationView = (pathname.match(new RegExp(/^\/Act\//)) !== null) && (search === `?ViewType=Sl`)
if (isSubsidiaryLegislationView){
const downloadButtons = (await waitForElement(`td.hidden-xs a.file-download`, true) as NodeListOf<Element>)
for(const downloadButton of downloadButtons){
const legislationName = downloadButton.parentElement.parentElement.children[0].querySelector(`a.non-ajax`).textContent.trim()
const fileName = Helpers.sanitiseFilename(`${legislationName}.pdf`)
augmentDownloadButton(port, downloadButton as HTMLAnchorElement, fileName)
}
return
}

// extra optional "/" because SSO sometimes adds a double slash in the the path
const isDetail = (pathname.match(new RegExp(/^\/\/?(Act|SL|SL-Supp|Acts-Supp|Bills-Supp|Act-Rev|SL-Rev)\//)) !== null)
if(isDetail){
await waitForElement(`.legis-title .file-download`)
await waitForElement(`.legis-title .file-download`, true)
// there are 4, but we are only concerned with desktop
const downloadButton: HTMLAnchorElement = document.querySelector(`.file-download`)
// there are also 4, but it doesn't matter which one we pick
Expand All @@ -165,8 +184,7 @@ const interceptSSODownloads = async (hostname: string, pathname: string, port: R

const isSearch = (pathname.match(new RegExp(/^\/Search\/Content/)) !== null)
if(isSearch){
await waitForElement(`td.hidden-xs a.file-download`)
const downloadButtons = document.querySelectorAll(`td.hidden-xs a.file-download`)
const downloadButtons = (await waitForElement(`td.hidden-xs a.file-download`, true)) as NodeListOf<Element>
for(const downloadButton_ of downloadButtons){
const downloadButton = downloadButton_ as HTMLAnchorElement
const legislationName = downloadButton.parentElement.parentElement.children[0].querySelector(`a.title`).textContent.trim()
Expand All @@ -178,8 +196,7 @@ const interceptSSODownloads = async (hostname: string, pathname: string, port: R

const isBrowse = (pathname.match(new RegExp(/^\/Browse\/(Act|SL|SL-Supp|Acts-Supp|Bills-Supp|Act-Rev|SL-Rev)\//)) !== null)
if (isBrowse){
await waitForElement(`td.hidden-xs a.file-download`)
const downloadButtons = document.querySelectorAll(`td.hidden-xs a.file-download`)
const downloadButtons = (await waitForElement(`td.hidden-xs a.file-download`, true) as NodeListOf<Element>)
for(const downloadButton of downloadButtons){
const legislationName = downloadButton.parentElement.parentElement.children[1].querySelector(`a.non-ajax`).textContent.trim()
const fileName = Helpers.sanitiseFilename(`${legislationName}.pdf`)
Expand All @@ -190,12 +207,13 @@ const interceptSSODownloads = async (hostname: string, pathname: string, port: R
}
}

const interceptWestlawDownloads = async (hostname: string, pathname: string, port: Runtime.Port) => {
const interceptWestlawDownloads = async (port: Runtime.Port) => {
const { hostname, pathname } = window.location
const isWestLaw = (hostname === `uk.westlaw.com`)
if(isWestLaw){
const isDetail = (pathname.match(new RegExp(/^\/Document\/[\dA-Z]+\/View\/FullText\.html/)) !== null)
if(isDetail){
await waitForElement(`#co_docContentWhereReported,#co_docContentMetaInfo`)
await waitForElement(`#co_docContentWhereReported,#co_docContentMetaInfo`, false)
const caseName = document.title.replace(` | Westlaw UK`, ``)
const downloadButtons = document.querySelectorAll(`#co_docContentWhereReported a[type="application/pdf"], #co_docContentMetaInfo a[type="application/pdf"]`)
for(const downloadButton of downloadButtons){
Expand All @@ -218,7 +236,7 @@ const interceptWestlawDownloads = async (hostname: string, pathname: string, por
}
const isSearch = (pathname.match(new RegExp(/^\/Search\/Results\.html/)) !== null)
if(isSearch){
await waitForElement(`#co_search_results_inner`)
await waitForElement(`#co_search_results_inner`, false)
const downloadButtons = [...document.querySelectorAll(`.icon_colour_pdf`)].map(element => element.parentElement)
for(const downloadButton of downloadButtons){
const citation = downloadButton.previousElementSibling.textContent.trim()
Expand All @@ -242,7 +260,8 @@ const interceptWestlawDownloads = async (hostname: string, pathname: string, por
}
}

const interceptCanLIIDownloads = async (hostname, pathname, port) => {
const interceptCanLIIDownloads = async (port: Runtime.Port) => {
const { hostname } = window.location
const isCanLII = (hostname === `www.canlii.org`)
if(isCanLII){
const selector = `#metas .subTab a[href$=".pdf"]`
Expand All @@ -264,15 +283,13 @@ const interceptCanLIIDownloads = async (hostname, pathname, port) => {
}

const downloadInterceptor = async (port: Runtime.Port) => {
const { hostname, pathname } = window.location

await intercepteLitigationDownloads(hostname, pathname, port)
await interceptLawNetDownloads(hostname, pathname, port)
await interceptOpenLawDownloads(hostname, pathname, port)
await interceptAustliiDownloads(hostname, pathname, port)
await interceptSSODownloads(hostname, pathname, port)
await interceptWestlawDownloads(hostname, pathname, port)
await interceptCanLIIDownloads(hostname, pathname, port)
await intercepteLitigationDownloads(port)
await interceptLawNetDownloads(port)
await interceptOpenLawDownloads(port)
await interceptAustliiDownloads(port)
await interceptSSODownloads(port)
await interceptWestlawDownloads(port)
await interceptCanLIIDownloads(port)
}

export default downloadInterceptor

0 comments on commit 75e7ae2

Please sign in to comment.