I'm trying to implement a feature like that where a user inputs a url and when displaying that url I want to have a custom display (an embed object if it's a video from youtube, a thumbnail if it's an image link, title and excerpt of body if it's a normal link).
How can such a feature be realized?
There is a new idea called oEmbed that a few sites support (Flickr, Vimeo and a few others) that addresses this problem. oEmbed site
Otherwise, just check the site against a list of ones you pick and then pull out the relevant bits to construct an embed link.
I liked the idea of oEmbed a lot but unfortunately it doesn't has that much adoption yet.
oohEmbed tries to solve this issue by building oEmbed for many websites.
For the feature to work, it needs the server's interaction where I believe the following scenario is how it works
Assume that we have the site humanzz.com and that it provides such feature
A user enters a url on the humanzz.com's webpage and presses a button like facebooks' preview button
An AJAX call is made to a dedicated page on humanzz.com
humanzz.com does calls the remote website and gets its data
The AJAX call now returns the page's data (oEmbed JSON object)
This involves so much server's overhead.
I really wanted to do it using JavaScript as the server's role was only to bypass "Same Origin Policy"'s restrictions.
oohEmbed allows bypassing the server's step by specifying a callback parameter to oohEmbed so that the JSON object returned is passed to a callback function on your page.
An example illustrating this is as follows
Add a script tag dynamically to your page
< script type="text/javascript" src="http://oohembed.com/oohembed/?url=http%3A//www.amazon.com/Myths-Innovation-Scott-Berkun/dp/0596527055/&callback=myCallBack">< /script>
This would result in executing myCallback(oEmbedJSONObject) which is great.
The problem with that solution is you still have to have a fallback for websites that don't have oEmbed representations.
For the embedded things, I have been using auto_html ( https://github.com/dejan/auto_html) with great success (vimeo, youtube, images) and even added soundcloud myself. But I am still looking for a "thumbnail" generation with an image and text facebook-like.
I guess you have to construct it by yourself by manually parsing the kind of URL you get.
If it is an image url, well then you just have to rescale it and in case the user clicks on it, then handle that by opening the original one somehow.
If it is a link to some youtube video, then you have to take a look at how the embedding of Youtube videos works. You can just copy the code that is provided by Youtube itself, and then exchange the parts with the URL to the video with the URL you got from your user.
I did never implement something like that, but I assume it should work somehow like this.
Related
I have implemented AMP successfully for my webpages and google started indexing it, which I came to know via WebMaster tool. I am facing some issues which is present and disappears in short span of time.
Issue logged are:
User authored JavaScript found on page
The pages doesn't contain any script tags except schema.
This error is showing for few pages from 120 pages instead of following same
template. Below is the image link:
Have some more query:
I have observe different amp urls getting redirected to its original page when the same amp url is being used in Web Browser.
Is Google taking care of it or its on us to do the redirection?
I am planning to implement the sign in and share buttons on my web pages which will be using javascript. But if I do so, I do get validation error. So what is the right approach.
Can anyone please help me on this?
Please ensure that all script tags are of type application/ld+json. There should be no executable code in these script tags.
Redirection is something that you must be doing on your end. Google doesn't do any sort of redirection from AMP to non-amp pages if the URL is hit directly. In fact that URL schema that Google uses in their carousel is entirely their own, and just includes the path to your page inside it. E.g. https://cdn.ampproject.org/v/www.yoursitehere.com/path/to/article.html
Social sharing using Javascript inserted in the page is not allowed, as no Javascript is allowed. If you want to use social sharing, use a non-javascript implemention, or try out the amp-social-share
thanks for the response. As per the query which I asked
Please ensure that all script tags are of type application/ld+json. There should be no executable code in these script tags - I am not using any Script as of now except amp only
Redirection is something that you must be doing on your end. Google doesn't do any sort of redirection from AMP to non-amp pages if the URL is hit directly. In fact that URL schema that Google uses in their carousel is entirely their own, and just includes the path to your page inside it. E.g. https://cdn.ampproject.org/v/www.yoursitehere.com/path/to/article.html -
Understood
Social sharing using Javascript inserted in the page is not allowed, as no Javascript is allowed. If you want to use social sharing, use a non-javascript implementation, or try out the amp-social-share - Implemented Social Share and its working fine
Can we implement AMP for eCommerce sites where a lot of JavaScript, forms, plugins can be included? As of my knowledge AMP wants to keep it simple and thus restrict as many JavaScript, form tag is not valid only. So is there any chance we can implement AMP on eCommerce sites.
I've came across this page https://www.tumblr.com/examples/share/sharing-links-to-articles.html which shows a possible way to customly create a share URL for tumblr.
Simplified version of what they have:
Click to share
http://jsfiddle.net/m5ow6bhs/2/
This will take you to the log in page or straight to the share page if you're already logged in. However, if you change the http%3A%2F%2F part to a simple http:// it will now load to a "Not Found Page". http://jsfiddle.net/m5ow6bhs/3/ What the hell Tumblr?
Do you guys have any idea what's going on or what's the correct code to share something to Tumblr?
Cheers.
As with most share services, the URL should be passed as an encoded string. This supports the OPs comments about http%3A%2F%2F(encoded) and http:// (raw).
Tumblr provides variable transformations in the theme operators to handle encoding, but sadly it doesn't work with custom variables.
One quick solution is to drop the http:// part. Example: http://jsfiddle.net/L9jd8dhz/
I have discovered as of recently that the share URL needs to be updated as such:
https://www.tumblr.com/widgets/share/tool?shareSource=legacy&canonicalUrl=<-urlencode(share_url)->&posttype=link
The &posttype= seems to be a new requirement to make the share work correctly.
I'm basically looking at a security problem between a parent page and an iframe with links to a third party.
I want to send a POST or a GET (doesn't matter which as I can control the other side) to the third party, but not expose any details within it (say a SID or a user token) and have it's HTML content (JS/HTML/Images) loaded into the iframe.
I've looked at server-side redirects, creating a proxy using webclinet/webresponse and am curious to whether there is a good way to do it.
Has anyone ever done this before, or think that the secrity is not possible? Hell, even if I'm barking up the wrong tree on how to solve this.
If anybody has any examples on this it would be greatly appreciated.
Cheers,
Jamie
[Edit] Was thinking I might need to add some more details.
Say I have a parent page: https://mycompany.com/ShowThirdParty.
This has an iframe in it at the moment which will have the content of another component (also owned by me, or another team more specifically)
Basically I'd like to send some credentials to content in the iframe in such a way that the external pages can't read it, the iframe is put into a modal (I've done that) and the iframe has the restricted content with the auhtentication almost seamless and invisible.
I currently have it working as a GET url generated dynamically via JS and then passed into the iframe src parameter, obviously that isn't secure.
I kind of want some kind of server side redirect across a full url, but I don't even think that's possible.
You could try using AJAX and load a PHP script (with any parameters to the script encoded/encrypted) to query the 3rd party page and load the response into the iframe. Not really sure how your code is setup but there should be a way.
It can also be done by POST Method (submit the data to iFrame using POST) as it is HTTPS so the data you send to iFrame is encryped.
In trying to create an "object" page for my first facebook app, I've run into some difficulty. I followed Facebook's Open Graph Tutorial nearly exactly.
After creating an "object" html page with the appropriate <meta property="og:... tags I tried running the URL through the Debugger Tool as suggested in the tutorial but I'm given the following error:
"Facebook URLs aren't scrapable by this Debugger. Try your own."
This page is in the same directory on my company's linux box as the canvas page, and is certainly not a "Facebook URL". If it matters, I'm using an IP instead of a domain name: xx.x.x.xxx/app/obj.html
...
I continued the tutorial anyway, but ultimately it does not seem to want to post a new action/object (is this even right?). I did however manage to get something to work, as in the app timeline view I apparently actioned one of those objects a couple hours ago. I assume this happened when I was pasting curl POST commands into the terminal.
I'm pretty new to the whole open graph, and facebook APIs, etc., so I'm probably operating under false assumptions of some sort, and I've been all over trying different things, but this error seems pretty bizarre to me and I can't seem to resolve it.
UPDATE
I just took the object page and put it on my own personal shared hosting acct. The debugger worked (inexplicably) fine on it, but I couldn't go too far since it's a different domain than the one authorized by my app.
Make sure og:url inside your html page does not point to facebook.
Also, make sure to look at the open graph protocol page (to see you formatted the og tags correctly.
Also, make sure the page is accessible to everyone, not just yourself.
Without knowing the URL it's hard to be sure, but it's most likely that your URL is either including a og:url tag pointing to a facebook.com address, or a HTTP 301/302 redirect to Facebook instead
in titanium, i'm using the webview to display a wordpress blog page, that is already formatted for mobile browser. instead of writing my own interface, this works as a good work around. the apps sole focus isn't the browser.
but my issue lies, when the user clicks a link outside of the initial displayed domain. i only want the main domain to be displayed in the apps browser. if any other link is clicked, that takes the user outside of that domain, i want to have it open in the phones default browser.
can anyone point me in a direction for this. i tried adding a listener to try and catch link clicks, however, i've been unsuccessful.
thanks
in this blog posting I show how to find links in a webpage and change the link behavior. Using the same method, you can intercept the links and redirect to opening the URL in the devices default browser
One solution would be to catch the onclick() Event by Javascript inside the WebView (your blog code) and handle this by a custom handler. Maybe you can inject the javascript event handler code into the running WebView through Titanium.
Another solution is to make your blogposts readable for app technology and create a new data interface. This is the way I would do. For that I would use some kind of JSON data format and a simple REST Interface to get the data.
I don't think bove solutions are that simple. If you want an app with "great feeling", you'll have to handle the events by your own. Maybe Phonegap would be a better solution four your problem. But there you will still need a kind of REST/JSON interface for your blog data. The idea behind an app is, that the main code is in your app and you get the content from a remote source. This way you'll get an advantage compared to a simple browser optimized site.