Suppose I am expecting a url as part of my route - maybe a callback url or similar - I might use the following route:
get '/mymodel/:url', to: 'mycontroller#docallback', url: /.*/
Now I would like to be able to go to http://www.myapp.com/mymodel/http://www.google.co.uk/ and process http://www.google.co.uk/ in mycontroller - but it is processed as http:/www.google.co.uk/ (one slash). How can I rectify this? Is the regex wrong or is there some flag I have to set?
I don't think that "http://www.myapp.com/mymodel/http://www.google.co.uk/" is a valid url.
Normally if you want to pass a url as a parameter you would call CGI.escape on it first, which would convert "http://www.google.co.uk/" to "http%3A%2F%2Fwww.google.co.uk%2F" CGI.escape will turn any string into a url-safe version of itself, basically replacing any characters which have a special function in a url, like ":/?&" and also space and some other characters which would otherwise break the formatting.
So, you would end up with a url like
"http://www.myapp.com/mymodel/http%3A%2F%2Fwww.google.co.uk%2F"
which would come through in params like
params = {:url => "http://www.google.co.uk/"}
Note how it's been unescaped here: Rails automatically* calls CGI.unescape on parameter values before putting them into the params hash.
However, this url
"http://www.myapp.com/mymodel/http%3A%2F%2Fwww.google.co.uk%2F"
looks pretty weird to me. It would be better to be more explicit and pass it through as a named parameter in the url itself, like
"http://www.myapp.com/mymodel?url=http%3A%2F%2Fwww.google.co.uk%2F"
which will require a slight change to your routes.
* I think Rails will do this but it might depend on circumstances. Try it.
...Turned out that the request was not encoded on the client side before being sent, solution was to use encodeURIComponent() on the url before sending it.
Related
This is a silly question but weird enough I Googled it, I am sure i had seen it before in Rails guides but now couldn't find it.
I want to attach parameters to my URL.
My initial url is this: "http://localhost:3000/pharmacy/patients"
Now I attach one URL with string concatination in JavaScript and it will be this:
"http://localhost:3000/pharmacy/patients?provider=234"
And still good.
Now I want to attach a second parameter named thera_class and its values are strings with spaces between them like "Nasal Congestion"
If I want to also concatenate that second parameter to it, How would the URL look like?
The way it would look is:
http://localhost:3000/pharmacy/patients?provider=234&thera_class=Nasal Congestion
To be extra strict, spaces are replaced by %20 in the URL:
http://localhost:3000/pharmacy/patients?provider=234&thera_class=Nasal%20Congestion
How do I pass array of parameters through Get method in rails? Currently my URL loocs like this:
http://localhost:3000/jobs/1017/editing_job_suites/1017/editing_member_jobs/new?ids[]=1025&ids[]=1027
How can I pass the array with Get method but avoid ?ids[]=1025&ids[]=1027 part.
Request is being sent with javascript window.open method. Is there any workaround to send not ajax Post request.
You should stick to using a GET request if you are not changing the state of anything, and all you want to to access a read only value.
To send an array of ids to rails in a GET request simply name your variable with square brackets at the end.
//angular snippet
$http.(method:'GET',
...
params: {'channel_id':2, 'product_ids[]': productIds}
//where productIds is an array of integers
...
)
Do not concatenate your ids as a comma separated list, just pass them individually redundantly. So in the url it would look something like this:
?channel_id=2&product_ids[]=6900&product_ids[]=6901
url encoded it will actually be more like this:
?channel_id=2&product_ids%5B%5D=6900&product_ids%5B%5D=6901
Rails will separate this back out for you.
Parameters: {"channel_id"=>"2", "product_ids"=>["6900", "6901"]}
No, GET can only put variables on the url itself. If you want the URL to be shorter, you have to POST. That's a limitation feature of HTTP, not Rails.
I recently wanted to do this and found a workaround that is a little less complex, and so has some complexity limitations but may also be easier to implement. Can't speak to security, etc.
If you pass your array values as a string with a delimiter, e.g.
http://example.com/controller?job_ids=2342,2354,25245
Then you can take the result and parse it back to what you want:
job_ids = params[:job_ids].split(',')
Then do whatever:
job_ids.each do |job_id|
job = Job.find(job_id.to_i)
end
etc
#Homan answer is valid for using an external client (e.g curl or angular). Inside Rails test cases though, you should not use []. Here's an example:
get get_test_cases_url(**path_params), params: {case_ids: ["NON-9450", "NON-12345", "NON-9361"]}
This is using new format where get_test_cases is name of route and you pass to the method all params needed to construct the URL path. Query params are a separate hash.
FYI if I use [] like case_ids[], then instead of ["NON-9450", "NON-12345", "NON-9361"] I'm getting it parsed to [["NON-9450"], ["NON-12345"], ["NON-9361"]]
I have built a form that submits values to Wufoo as a GET request in the URL. I cannot get it to work if any of the values (in a textarea) contain a line-break or a forward slash. Is there a way to encode these in a URL?
This is being done in Rails.
I thought Rails would do that for you. But if you need to do it manually, you can use CGI::escape, e.g.
> require 'cgi'
...
> CGI.escape("hello%there\nworld")
=> "hello%25there%0Aworld"
EDIT:
Actually, CGI does not seem to escape a dot. URI can be used instead, it takes an extra parameter that lets you list extra characters you want escaped:
URI.escape("hello.there%world", ".")
http://en.wikipedia.org/wiki/Percent-encoding
I am facing a problem that one of my fields need to be shown in the url contains special character (/, \, :).
The stupid way to handle this generate action links by using UrlEncode(). Then UrlDecode is used before consuming in controller. But I think it really stupid because too many places need to be adapted.
So, my problem is there any way to extend the url route or just write my own one to achieve it?
Thanks,
Mike
You can extend the System.Web.Routing.Route object to create a custom route and override the GetRouteData and GetVirtualPath methods. These are called to resolve a route's values and create a URL from given route values, respectively. However, I don't think URLs can contain URL encoded values for / (%2f) within the path portion of a URL though it is ok in a query string.
I'm trying to pass u url as parameter to a get method.
I defined a route that accepts a {*url} parameter so I can send "/" characters without it separating my parameter.
As soon as there is a ":" in the url (like in http: or localhost:3857 for example), the method never gets hit.
The Html.ActionLink method escapes it's parameter itself, but it doesn't seem to escape the ':'. I cannot escape it manually because then the escape characters get escaped by the very same Html.Actionlink method.
any ideas?
Use EncodeUrl before you pass it, and then decode it on the other side.
I ran into the same problem. I ended up removing the Html.ActionLink and replaced it with:
#item.Title
#item.ID is a url returned from the netflix api, example http://api.netflix.com/catalog/titles/series/70021357/seasons/70021357. Now my url looks like this - /Home/Movies?id=http://api.netflix.com/catalog/titles/series/70021357/seasons/70021357, and I just used Request.QueryString to get the value in the controller:
Request.QueryString.Get("id")
Probably not ideal but it works for now.
It's a bit of a hack, but you could replace the ':' with '%3A' (which is the escaped form), and see what the ActionLink does with it. If it's escaped once more, you'd have to replace the twice-escaped version back to ':' at the server, otherwise just replace '%3A' back to ':'