Fix: PDF is not cached #32678

tienifr · 2023-12-07T15:45:59Z

Details

PDF files are not cached. This PR fixes that.

Fixed Issues

Tests

Native only:

Send a large PDF
Open it (the file loading is long)
Close the modal and reopen it
Verify the file is served almost instantly
Log out then login
Open the attachment
Verify that it is loading for a while

We can verify in the Cache folder of the app on native device that the cached PDF file is removed after logging out. We can manually log the file path in finishPDFLoad function to see where it's stored.

Verify that no errors appear in the JS console

Offline tests

NA

QA Steps

Native only:

Send a large PDF
Open it (the file loading is long)
Close the modal and reopen it
Verify the file is served almost instantly
Log out then login
Open the attachment
Verify that it is loading for a while

Verify that no errors appear in the JS console

PR Author Checklist

Screenshots/Videos

Android: Native

Screen.Recording.2023-12-07.at.22.57.03-compressed.mov

Android: mWeb Chrome

iOS: Native

Screen.Recording.2023-12-07.at.22.53.29-compressed.mov

Screen.Recording.2023-12-07.at.22.54.07-compressed.mov

iOS: mWeb Safari

MacOS: Chrome / Safari

Screen.Recording.2023-12-07.at.22.50.55-compressed.mov

MacOS: Desktop

melvin-bot · 2023-12-07T16:50:47Z

@getusha Please copy/paste the Reviewer Checklist from here into a new comment on this PR and complete it. If you have the K2 extension, you can simply click: [this button]

tienifr · 2023-12-07T16:51:13Z

We don't have to manually clear the cached PDF because the app's Cached folder in native device is automatically cleared after logging out.

getusha · 2023-12-11T07:58:40Z

src/components/PDFView/index.native.js

@@ -155,7 +155,7 @@ class PDFView extends Component {
                        fitPolicy={0}
                        trustAllCerts={false}
                        renderActivityIndicator={() => <FullScreenLoadingIndicator />}
-                        source={{uri: this.props.sourceURL}}
+                        source={{uri: this.props.sourceURL, cache: true, expiration: 864000}}


@tienifr I think we should raise a discussion for the expiration interval. IMO 12 hours should be good.

Raised discussion on Slack.

another question: will the cache be removed when attachment is deleted from the chat?

will the cache be removed when attachment is deleted from the chat

Seems like it does not. But it still gets removed when we logged out.

Seems like it does not. But it still gets removed when we logged out.

We should clear the cache when the attachment is deleted, and i am not sure how this will work incase of protected pdf i am checking.

getusha · 2023-12-18T13:44:38Z

@tienifr any updates on #32678 (comment)?

tienifr · 2023-12-20T11:22:26Z

Working on it. Seems like we still need Onyx.

getusha · 2024-01-06T09:47:06Z

@tienifr Any updates?

tienifr · 2024-01-06T15:12:12Z

Code changes seem good but I'm trying to refactor to make it as short as possible.

getusha · 2024-01-16T10:36:54Z

@tienifr any updates on this?

tienifr · 2024-01-16T10:39:25Z

I'm sorry will get this done today.

getusha · 2024-01-23T19:06:14Z

@tienifr could we please get an update? ty!

tienifr · 2024-01-24T11:41:55Z

@getusha Sorry for the delay. This is ready for review.

getusha · 2024-01-24T16:26:46Z

Reviewer Checklist

I have verified the author checklist is complete (all boxes are checked off).
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I verified tests pass on all platforms & I tested again on:
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If there are any errors in the console that are unrelated to this PR, I either fixed them (preferred) or linked to where I reported them in Slack
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Screenshots/Videos

Android: Native

Screen.Recording.2024-01-26.at.1.35.08.PM.mov

Android: mWeb Chrome

Screen.Recording.2024-01-26.at.2.12.53.PM.mov

iOS: Native

Screen.Recording.2024-01-24.at.7.24.21.PM.mov

iOS: mWeb Safari

Screen.Recording.2024-01-26.at.2.26.06.PM.mov

MacOS: Chrome / Safari

Screen.Recording.2024-01-26.at.2.08.21.PM.mov

MacOS: Desktop

Screen.Recording.2024-02-28.at.9.50.50.AM.mov

getusha · 2024-01-24T16:27:10Z

@tienifr looks like we've got a conflict.

src/libs/actions/CachedPDFPaths.ts

getusha · 2024-01-24T17:14:07Z

src/libs/actions/CachedPDFPaths.ts

+        exists(path).then((exist) => {
+            if (!exist) {
+                resolve();
+            }


Lets also update the list stored in Onyx

if (pdfPaths[path]) { delete pdfPaths[path]; Onyx.set(ONYXKEYS.CACHED_PDF_PATHS, pdfPaths); }

I already did that in the caller fucntion here and here.

getusha · 2024-01-24T17:15:23Z

There is also another case, when the pdf cached is sent from the other user and it gets deleted.

tienifr · 2024-01-25T07:31:22Z

@getusha I think that is infeasible. We don't even need to remove cache when delete attachment. IMO, the expiration time alone is enough for this. What do you think?

getusha · 2024-01-31T10:03:59Z

@tienifr any updates, looks like we've got a merge conflict.

getusha · 2024-02-04T19:51:36Z

@tienifr gentle bump :)

getusha · 2024-02-08T11:07:57Z

@tienifr any updates?

tienifr · 2024-02-08T12:20:50Z

I'm working on it. Wrapping up today.

getusha · 2024-02-11T19:03:48Z

@tienifr lets get this done this week.

tienifr · 2024-02-15T07:43:45Z

Sorry I've been OOO the last week. This gets quite complicated and may introduce unnecessary and risky changes. Give me a day or two to do some tests.

getusha · 2024-02-22T18:20:28Z

@tienifr we must complete this, this week 😄

tienifr · 2024-02-24T16:20:23Z

@getusha I took a look at react-native-pdf's source code. The caching mechanism there is too simple. Whenever you open a file, it will check if the cache is expired then delete it and re-cache a new file. That means the cached file, once created, never goes away unless we log out. And the expiration here is the time to cache a new file, not to completely remove it from memory. By that, we can verify that we will never have many duplicated caches for the same file.

So if we want to remove the cache when expiration is over, we need to implement it ourself. The implementation is:

When any PDF file is loaded, we check every single cached paths in Onyx to see if they are expired (based on the file's last modified time metadata)
If yes, then remove it from memory

IMO, the implementation is quite complicated and not a good ROI (i.e. not brings much value). We'd better keep it simple and let they all be wiped out when signed out. What do you think? Do you want to go with it anw?

getusha · 2024-02-24T16:24:42Z

IMO, the implementation is quite complicated and not a good ROI (i.e. not brings much value). We'd better keep it simple and let they all be wiped out when signed out. What do you think? Do you want to go with it anw?

I agree we should keep it simple, thanks for looking into that deeply.

tienifr · 2024-02-26T03:04:08Z

TS check failure is on main and not related to this PR. I'll try to pull main today. If we don't need to improve anything, are we good to go? @getusha

getusha · 2024-02-26T08:23:16Z

src/components/Attachments/AttachmentView/index.js

@@ -153,6 +159,15 @@ function AttachmentView({
    if ((_.isString(source) && Str.isPDF(source)) || (file && Str.isPDF(file.name || translate('attachmentView.unknownFilename')))) {
        const encryptedSourceUrl = isAuthTokenRequired ? addEncryptedAuthTokenToURL(source) : source;

+        const onPDFLoadComplete = (path) => {
+            if (isUsedInCarousel && reportActionID && path) {


why is this? isUsedInCarousel, logged pdfPaths and it is not storing the paths anymore due to this condition.

That's my fault. I removed it.

tienifr · 2024-02-26T10:25:01Z

@getusha I also handled the case of deleting iou request with PDF receipt.

MonilBhavsar

Thanks! Looks good to me

OSBotify · 2024-02-28T19:23:21Z

✋ This PR was not deployed to staging yet because QA is ongoing. It will be automatically deployed to staging after the next production release.

OSBotify · 2024-02-29T00:06:16Z

🚀 Deployed to staging by https://github.com/MonilBhavsar in version: 1.4.45-0 🚀

platform	result
🤖 android 🤖	success ✅
🖥 desktop 🖥	success ✅
🍎 iOS 🍎	success ✅
🕸 web 🕸	success ✅

OSBotify · 2024-02-29T23:30:44Z

🚀 Deployed to production by https://github.com/puneetlath in version: 1.4.45-6 🚀

platform	result
🤖 android 🤖	success ✅
🖥 desktop 🖥	success ✅
🍎 iOS 🍎	success ✅
🕸 web 🕸	success ✅

tienifr added 3 commits December 7, 2023 22:39

fix: pdf not cached

6749e0a

fix lint

0624e89

fix lint

552592c

tienifr marked this pull request as ready for review December 7, 2023 16:50

tienifr requested a review from a team as a code owner December 7, 2023 16:50

melvin-bot bot requested review from getusha and removed request for a team December 7, 2023 16:50

getusha reviewed Dec 11, 2023

View reviewed changes

Merge branch 'main' of https://github.com/tienifr/App into fix/32232

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Merge branch 'main' of https://github.com/tienifr/App into fix/32232

7ef7951

tienifr added 2 commits January 24, 2024 16:29

Merge branch 'main' of https://github.com/tienifr/App into fix/32232

eff555e

remove cached file when delete comment

35c7989

getusha reviewed Jan 24, 2024

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src/libs/actions/CachedPDFPaths.ts Outdated Show resolved Hide resolved

getusha reviewed Jan 24, 2024

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src/libs/actions/CachedPDFPaths.ts Outdated Show resolved Hide resolved

getusha suggested changes Jan 24, 2024

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Merge branch 'main' into fix/32232

f296a75

tienifr added 3 commits February 5, 2024 22:46

Merge branch 'main' into fix/32232

5baa4b8

seperate platform logic

9379469

add types for CachedPDFPaths

6eb146a

tienifr added 2 commits February 24, 2024 06:08

Merge branch 'main' into fix/32232

e3c7d72

fix lint

55884df

Merge branch 'main' of https://github.com/tienifr/App into fix/32232

adfae33

getusha reviewed Feb 26, 2024

View reviewed changes

tienifr added 2 commits February 26, 2024 17:15

remove redundant condition

f7ed37e

delete cache for transaction receipt

abd5347

getusha approved these changes Feb 28, 2024

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melvin-bot bot requested a review from MonilBhavsar February 28, 2024 08:32

MonilBhavsar approved these changes Feb 28, 2024

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MonilBhavsar merged commit b8e0989 into Expensify:main Feb 28, 2024
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github-actions bot mentioned this pull request Feb 28, 2024

Deploy Checklist: New Expensify 2024-02-28 #37459

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m-natarajan mentioned this pull request Feb 29, 2024

[HOLD for payment 2024-03-11] [HOLD for payment 2024-03-07] App crashes when uploading PDF or opening any attachment sent after PDF #37469

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melvin-bot bot mentioned this pull request Feb 29, 2024

[HOLD for payment 2024-03-11] [HOLD for payment 2024-03-07] [$500] iOS - Attachment - PDF files aren't cached and flashes once while loading #32232

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6 tasks

Fix: PDF is not cached #32678

Fix: PDF is not cached #32678

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tienifr commented Dec 7, 2023 • edited Loading

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