blob file: Not accessible with link - html

There is a big picture in this link https://www.sunday-webry.com/viewer.php?chapter_id=91141, the url of which can be found with inspector, looks like blob:https://www.sunday-webry.com/1dfc33a7-cb4c-44f9-8642-df87bfc91fd5. (blob links are only available in individual browser instances)
However, this blob link is unaccessible. The browser complains:
Your file couldn’t be accessed
It may have been moved, edited or deleted.
ERR_FILE_NOT_FOUND
blob link is sometimes accessible with link, see the blob image links found in https://viewer.ganganonline.com/manga/?chapterId=39373.
There should be some way to access the first blob image by link directly like the second one - but how to achieve that?

In this case the blob link is only accessible once. And after it was read, the link is destroyed so that future operations become impossible.

Related

Cannot create direct link to image hosted online

I was just trying to add a background image from http://wallpaperswide.com/rocky_peak-wallpapers.html to my website.
The link to the particular image is http://wallpaperswide.com/download/rocky_peak-wallpaper-1920x1080.jpg.
However, if I try to load the image from the second link, it doesn't load. If I paste the URL into my browser, it redirects me to the first link.
Why does this happen? Thanks.
Edit
I'm getting some answers that there is an HTTP redirect. I know I can download the file and use locally.
However, the problem is that I'm writing a script that dynamically takes an image from the wallpaperswide.com site and automatically getting the image that fits the person's screen resolution. I just scan the page for the links and try to use those links. I can't download every image from the site and have them locally...
Any suggestions?
Because http://wallpaperswide.com/download/rocky_peak-wallpaper-1920x1080.jpg is not an image, it's a document.
HTTP urls always point to documents, therefore the web server is able to process it and give you the appropriate result.
The website author has added a 302 redirect rule while accessing the links directly, so you can't embed that link directly. Instead, you can download and refer it.

WhatsApp HTML Sharing Link for Image

I know you can share messages with and this is working on android and ios now:
Share with whatsapp
However I'd like to share an image trough a button on my website like someone would share an image from his phone (gallery). Is this anyhow possible?
One solution that comes to mind is uploading a photo to your server via AJAX, returning the link to the uploaded photo and then sending a message with the link to your photo using the method you described in your question. This is not quite the same as sending an image directly using Whatsapp since the recipient would only receive a link, but I doubt there will ever be a way to send an image to another application from your gallery using a webpage since that would raise some serious concerns.
Roughly, the process would like this (keep in mind that this will require some testing to get right and find a solution that works well on all platforms or at least most of them):
Create an image upload on your website. Simply having <input type="file" accept="image/*"> on your page should, on most platforms, allow you to create a button which will open a dialog to select an image from your phone's gallery when clicked. You can find a full example here or use a library such as Plupload which contains many upload methods, including HTML5 which is what you need.
Create a simple server-side upload. This depends on your language and platform, but all you need to do is store the image somewhere and return a link to it in response. If you don't want to store these images on your server, you could forward it to Imgur API and upload there.
Redirect the user to the whatsapp:// link that contains the image link.
window.location = 'whatsapp://send?text='+encodeURIComponent(imageURL);
This is the point where you need to do some testing on different platforms, though. You might not be able to redirect to a whatsapp:// link this way (since it seems like a security concern), so you may need to trick it (this is a bad idea, but I'm including it for the sake of completeness; the data-action part is from this answer):
var fakeLink = document.createElement('a');
fakeLink.setAttribute('href', 'whatsapp://send?text='+encodeURIComponent(imageURL));
fakeLink.setAttribute('data-action', 'share/whatsapp/share');
fakeLink.click();
In the end, if neither of these work, your best bet is creating a link once the upload is complete for the user to "confirm" sending which actually contains the above whatsapp:// link in the href field.
There are many factors to test and some that are implementation specific so I had to keep it vague without much code - if you come across anything else when implementing this, please mention it in the comments.

Is it secure to blindly trust image urls and output them into html img tags on a site? Can it be used to inject code?

I have to process a feed from a data provider, in this feed they provide us with image URL, currently we download them and store them in our own media server, but I was wondering if it was safe to simply get the url and output it directly in the html as the src attribute of an img tag.
My main concern is if this exposes us to the possibility of someone placing files under that URL which would could run malicious scripts/ do something other than render an image (or fail to render an image if it isn't one/doesn't exist, which is fine)
Will the img src attribute only render images, or will it download the file specified in the URL to the user's browser regardless of what it is?
I can verify at the import stage that the URL at least appears to be a valid image URL, so it would only ever have .jpg or whatever as an extension, but obviously this might still allow them to redirect to something else.
Image URLs can of course point to scripts (with some URL rewriting) but there's no risk to get a script run from an image load. URL data is treated as binary image data, not as runnable text/script.
If it's a script, for your browser it's nothing more than a corrupted image file.
So, no code injections risk. At least this is what I know.

Displaying files (e.g. images) stored in Google Drive on a website

I was wondering if its possible to access/display files like images which are stored in Google Drive on a public website.
A workaround is to get the fileId with Google Drive SDK API and then using this Url:
https://drive.google.com/uc?export=view&id={fileId}
That will be a permanent link to your file in Google Drive (image or anything else).
Note: this link seems to be subject to quotas. So not ideal for public/massive sharing.
Go to your Google Drive.
Right-click on the image file.
Select Get link.
Open the General access drop-down menu.
Select Anyone with the link to publish your image.
Click Copy link > Done.
You will get a URL like the following:
https://drive.google.com/file/d/1wMgCWAsqlw0nXcMhCldTbwSznMdXUmBT/view?usp=share_link
You can see your file ID in bold. Put the file ID in the following simple view link:
https://drive.google.com/uc?id=FILE ID
Result:
https://drive.google.com/uc?id=1wMgCWAsqlw0nXcMhCldTbwSznMdXUmBT
You can take the same steps for other file types: MP3, PDF, etc.
UPDATE: As was announced, Google deprecated this feature in Aug 2016. Here's the final update from Google with alternatives.
Yes, it's possible. Provided that you put your files in a public folder, you can get any file in a folder by this URL:
https://googledrive.com/host/<folderID>/<filename>
here is how from # https://productforums.google.com/forum/#!topic/drive/yU_yF9SI_z0/discussion
1- upload ur image
2- right click and chose "get sharable link"
3- copy the link which should look like
https://drive.google.com/open?id=xxxxxxx
4-change the open? to uc? and use it like
<img src="https://drive.google.com/uc?id=xxxxx">
EDIT : As of 2020, THIS is working. Most previous answers are outdated.
Easy Solution
All you have to do is open your file:
Then, go into your web inspector (for Chrome, Cmd-Shift-I or Ctrl-Shift-I depending on your OS) and get the link. Paste that link into your browser and it will redirect to another link. Copy the new URL. Done!
What's the redirect for?
It seems that if you use the first link, it can only be accessed when signed in to your Google account. Not very helpful for other people. The second, redirected link, however, does not need you to be signed in. That's the rationale behind it.
I deleted the original file shown in the images, but I have another working example here.
I've actually checked back on my example link that I posted in my edit about a week ago, but it no longer seems to be working. It looks like these links only work temporarily, so don't use them for any kind of production environment.
Working solution for Workspace (G suite) users in Nov 2022
Some embed codes do not show the img unless the viewer is logged into gmail, the following works like a regular image on your webhost:
Share item publicly (make sure it says ''Anyone on the internet with this link can view): either the image itself (or the folder where the image resides) then copy the link the following way
Take the ID of the file and insert here:
<img src="https://lh3.googleusercontent.com/d/[ID_OF_THE_FILE]">
Result (if you see the dog below it means the solution still works):
Localmachine
Won't display on MAMP/WAMP type of localhost environments, but does display on webpages.
UPDATE: As was announced, Google deprecated this feature in Aug 2016. Here's the final update from Google with alternatives.
As per April 2013 and using Chrome/webkit, the following worked for me:
1 Make a folder called e.g. "public"
2 Select that folder, right click and Share > Share. Click. Select "Anyone can access"
3 Drag and Drop a file into the folder, and let it upload.
4 Right click on the file and select Details. One of the lines in the Details-Fieldset reads "Hosting". Underneath it is an url:
https://googledrive.com/...
Drag and Drop that url into a new tab. Copy and paste the url and share or embed it anywhere you like.
One limitation is that as far as HTTP goes, only secure HTTP access seems to be possible.
Update:
Another limitation is that files which Google drive can open, won't be accessible that way.
That is, clicking on "Details" won't show an Google-drive url.
To overcome this:
right click on the file in question and select "Open with>Manage apps":
Untick the file-associated apps here
Optional: Reload Google Drive
Right click on the file and select "Details"
Proceed as in step #4
Note: An alternative to the procedure above, is uploading the file with an extension that Google Drive cannot open/is not associated.
If you want to view the file in the browser, it's also possible using a similar method to the one provided by rufo and Torxed:
https://drive.google.com/uc?export=view&id={fileId}
Specifically for G-Suite users
.
As reported in point 3 here, you can use this URL for hosting image
https://drive.google.com/a/domain.com/thumbnail?id=imageID
with following replacements
domain: replace with your company's GSuite domain like pikachu
imageID: replace with the image id / file id
The prerequisite here is that image should have been shared via drive to target audience (either with each person individually or maybe across the org)
If you face problems with size of rendered image, use following options as mentioned here
https://drive.google.com/a/domain.com/thumbnail?id=imageID&sz=w{width}-h{height}
with following replacements (in addition to domain and imageID replacement)
{width}: write the width in pixels (without braces) like 300
{height}: write the height in pixels (without braces) like 200
Per this blog post, a currently working solution is:
<img src=”https://drive.google.com/uc?id=[imageIdGoesHere]" />
Test here
https://drive.google.com/uc?id=1m-uOoFzHn4oUGlEsDSEfPBbJ2QhBJzlM
This is verified to work as of 26th of April, 2021. No shared folder or login is required. But a publicly shared file is.
I think it is possible but only for a short time
What you have to do is set the Access Control List of the file to Public Read-Only (or Public Read/Write). You can do that programmatically using the Google Document List API, or manually through the "Share" button on the Drive image viewer.
Then you can get the URL to the image programmatically by either using the Google Document List API or using the Google Drive API (i.e. file.getDownloadUrl() in Java). You can also easily get a link to the image manually by right clicking on the image in the Google Drive default image viewer.
The problem is that this link has a limited time to live, so it will work for a little while and then stop working.
Basically the URL of the image file stored in Drive should be accessible without any authentication once it has been set shared publicly but that URL is going to change at some point. We might find a solution to this in the future like providing a permanent URL that will redirect to these changing URL but no promises...
From google drive help pages:
To host a webpage with Drive:
Open Drive at drive.google.com and select a file.
Click the Share button at the top of the page.
Click Advanced in the bottom right corner of the sharing box.
Click Change....
Choose On - Public on the web and click Save.
Before closing the sharing box, copy the document ID from the URL in the field below "Link to share". The document ID is a string of
uppercase and lowercase letters and numbers between slashes in the
URL.
Share the URL that looks like "www.googledrive.com/host/[doc id] where [doc id] is replaced by the document ID you copied in step 6.
Anyone can now view your webpage.
This is the only direct link format without redirection (then a Permalink) and only applies to files directly visible on Google Drive (e.g. images and documents).
It is not affected by the download limit and you can use it to display images on a website.
For example the sharing link:
https://drive.google.com/file/d/FILE_ID/view?usp=sharing
becomes:
https://lh3.googleusercontent.com/d/FILE_ID
lh4, lh5 and lh6 also work.
Some of the previous users were close, but they were missing a step here or there.
Here is a video that shows all of the steps.
(Edit 2-Dec-14 The Below information is incorrect when it comes to the new Google Drive. For the New Google Drive follow these instructions.
There are two options you can use,
option 1 you can click the cog on the top right and revert to the old google drive, IF you revert, use the instructions after "End Edit)"
.
Option 2 or you can follow the work around I found. If I find a better way than this I will update it, but here is what I have found that works.
The full link will look like this "https://googledrive.com/host/(folder id)
Part one of your link that you need is "https://googledrive.com/host/" for the second half you will need to navigate to the file you would like to share.
Once you are in the folder with the file you would like to share, look at the link above
(Example 1 https://drive.google.com/drive/u/0/#folders/0B3UALYkiLexYSXZlcldoU2NpYXM )
(Example 2 https://drive.google.com/drive/u/0/#folders/0B3UALYkiLexYSXZlcldoU2NpYXM/0B3UALYkiLexYRkNnOVhsUVozRU0)
In both of these above examples, the "Folder ID" you need for sharing is the last group of letters and numbers after the "/" so in example one, it is "0B3UALYkiLexYSXZlcldoU2NpYXM" in example two it is "0B3UALYkiLexYRkNnOVhsUVozRU0"
In the examples I used, example 1 was a folder on my drive, and example 2 was a folder inside that first one, that is why it has the entire first link before the second.
We only need the section after the "/" furthest to the right.
So now that you have your "Folder ID", take the above formula "https://googledrive.com/host/(folder id)"
Example 1 https://googledrive.com/host/0B3UALYkiLexYSXZlcldoU2NpYXM
Example 2 https://googledrive.com/host/0B3UALYkiLexYRkNnOVhsUVozRU0
Great, now that you have this link, open it in a new page. It will direct you to the shared folder. Once there you can either right click on any file and select "Copy link address" or you can click any file in that folder and it will take you to the hosted image, the URL at the top of the page is the hosting URL.
That is the how you do it. It is quite annoying, and personally it seems a whole lot easier to just revert to the old google drive.
I will try to make a new tutorial video ASAP
Let me know if this does not work for you and what problem you are experiencing.
End Edit)
https://www.youtube.com/watch?v=QmN22LMPdDk&feature=youtu.be
Or you can just follow the written ones below.
These pictures go with the ones listed in the steps.
https://googledrive.com/host/0B3UALYkiLexYSXZlcldoU2NpYXM/
Create a Folder on your Google Drive that you would like to use for sharing images.
Select that folder and go to the sharing options. Change the "Who has access" options from "Specific People" to "Public on the web"
All images placed in folder will have a hosting link on them shown in Step 4
(Images : Change Folder Option.png, Change folder option 2.png, and Change folder option 3.png)
place an image in that folder.
select the image you would like to share and look at the details section (usually on right hand side) for a section labeled "Hosting" you should find a link that starts with
"googledrive.com/host/(random numbers and digits that are the ID for that folder)/(file name)"
Use that link to share your images. You can use that link to embed them into other websites.
(Images: Change folder option 4.png and Change folder option share.png)
Vetea, if you take the link from picture URL, it does not work, but if you take it from the field "Direct Link" it should work. I have used and tested it in multiple occasions.
A very useful api/url I found is:
imageId -> the file ID
width, the desired width (cannot be greater than image resolution width), must be integer for it to work
height, the desired height (cannot be greater than image resolution height), must be integer for it to work
https://drive.google.com/thumbnail?id=${imageId}&sz=w${width}-h${height}
Note: the api/url will keep the aspect ratio so it will stop at whichever dimension is met first
There is a filetype option in the Google Drive API. You could, maybe, check if that resolves to a valid image. I'd look at an option where if the filetype gives me an invalid image, then get a new direct URL for the file. I haven't figured out exactly how to do this though, but maybe that's a path to try.
You can do it directly from Drive & Gmail. Here's how:
1.Upload an image to Google drive and set permissions for viewing (can be public OR anyone w/ link)
Go to Gmail>Compose. Select the + next to attachment icon.
Select drive icon (triangle shape)
Navigate to your image and right-click copy image url
Paste into web browser or embed on webpages as needed.
For images, open an image in google viewer. i.e.
Method 1
https://docs.google.com/file/d/0Bz7qe_olclTwWDNJRDRmb1pJamM/edit
then view source> find word "texmex-thumb" and aside it there will be link.
1.Change the settings of your picture to public.
2.Get its shareable link.
3.Go to this website and generate a direct download link.
Worked for me!
You can follow below steps to embed the files you want to your website.
Find the PDF file in Google Drive
Preview the PDF file in Google Drive
Pop-out the Google Drive preview
Use the More actions menu and choose Embed item
Copy code provided
Edit Google Sites page where you want to embed
Open the HTML Editor
Paste the HTML embed code provided by the Google Drive preview
Use the Update button and Save the page
References: https://www.steegle.com/websites/google-sites-howtos/embed-drive-pdf
Solution provided by Niutech worked for me i.e.
http://googledrive.com/host/<folderID>/<filename>
But there are 2 outstanding issues
You cannot have 2 files with the same name in the same folder in the drive else this link won't work.
It is not yet clear but Google seems to be planning to deprecate image hosting via drive. please see the link below.
https://support.google.com/richmedia/answer/6098968?hl=en
Function title: goobox
tags: image hosting, regex, URL, google drive, dropbox, advanced
return: string, Returns a string URL that can be used directly as the source of an image.
when you host an image on google drive or dropbox you can't use the direct URL of your file to be an image source.
you need to make changes to this URL to use it directly as an image source.
goobox() will take the URL of your image file, and change it to be used directly as an image source.
Important: you need to check your files' permissions first, and whether it's public.
live example: https://ybmex.csb.app/
cconst goobox = (url)=>{
let dropbox_regex = /(http(s)*:\/\/)*(www\.)*(dropbox.com)/;
let drive_regex =/(http(s)*:\/\/)*(www\.)*(drive.google.com\/file\/d\/)/;
if(url.match(dropbox_regex)){
return url.replace(/(http(s)*:\/\/)*(www\.)*/, "https://dl.");
}
if(url.match(drive_regex)){
return `https://drive.google.com/uc?id=${url.replace(drive_regex, "").match(/[\w]*\//)[0].replace(/\//,"")}`;
}
return console.error('Wrong URL, not a vlid drobox or google drive url');
}
let url = 'https://drive.google.com/file/d/1PiCWHIwyQWrn4YxatPZDkB8EfegRIkIV/view'
goobox(URL); // https://drive.google.com/uc?id=1PiCWHIwyQWrn4YxatPZDkB8EfegRIkIV
Con can disable javascript in your browser open the image file and in the view page source or right click on the image, you will see the image link. ( check share preference before )
However this answer is simple, infact very simple and yea many have mentioned it that simply put the id of image into the following link https://drive.google.com/uc?export=view&id={fileId}
But however easy that is, I made a script to run in the console.
Feed in an array of complete sharable links from google drive and get them converted into the above link. Then they can be simply used as static addresses.
array = ['https://drive.google.com/open?id=0B8kNn6zsgGEtUE5FaGNtcEthNWc','https://drive.google.com/open?id=0B8kNn6zsgGEtM2traVppYkhsV2s','https://drive.google.com/open?id=0B8kNn6zsgGEtNHgzT2x0MThJUlE']
function separateDriveImageId(arr) {
for (n=0;n<arr.length;n++){
str = arr[n]
for(i=0;i<str.length;i++){
if( str.charAt(i)== '=' ){
var num = i+1;
var extrctdStrng = str.substr(num)
}
}
console.log('https://drive.google.com/uc?export=view&id='+extrctdStrng)
window.open('https://drive.google.com/uc?export=view&id='+extrctdStrng,'_blank')
}
}
separateDriveImageId(array)

Loading images from various sources in QTWebKit

I am trying to create a "smart" web browser to load local images. Basically it works as a GUI for an application. I am using QTWebKit to power the browser, the problem is that the images of a given page can be found in different places, some are local files, others are in different resource files.
For example:
an HTML node to load image x.jpg can look like <img src="x.jpg"> and for image y.gif on the same page it can be <img src="y.gif">, now x.jpg is a local file that can be either in the root directory or in some other place. y.gif on the other hand can be in a resource file.
I want the web browser first to set the paths to all possible sources and once the page has been loaded or preferably while the page is loading searches for the images and loads them from their original path.
I considered the option of reading the HTML data first, parse it and search for the resources one by one, then edit the html to include the full path of the image but that would take a long time than what I want and it isn't practical.
Can any one put me on the right direction or does any one have any ideas on how such a design can be implemented.
EDIT: I have manage to delegate the requests by overriding the QNetwrokAccessManager and QNetwrokReply and been able to get the path to the image. The only problem is loading the image into view. I am currently using QHttp to handle the incoming requests but so far I haven't been able to load the image.
been trying to use QHttp's Get() function and passing the path to the jpg image as (file:///path/to/image) and also tried using the local path but nothing is working.
Take a look at How to tell QWebPage not to load specific type of resources?
You need the same approach but instead of dropping request by constructing QNetworkRequest with empty QUrl you need to pass url to the file on the disk.