How to avoid double redirection 301

redirect 301 htaccess

[chms]

Hi,

I'm having problem to make a redirect because I'm getting two steps, in first step change to https and in the second redirect to the correct url.

RewriteRule ^search/(.*)$ https://search.domain.com/$1 [R=301,L] --> this doesn't work infinite looping
RewriteCond %{HTTP_HOST} !^search.domain.com$
RewriteCond %{HTTP_HOST} !^images.domain.com$
RewriteCond %{HTTP_HOST} !^css.domain.com$
RewriteCond %{HTTP_HOST} !^www.domain.com$

RewriteRule ^(.*) https://www.domain.com/$1 [L,R=301]

RewriteRule ^photos/originals/([0-9]+)_1\.jpg$ https://www.domain.com/photos/$1/$1_l.jpg [R=301,L]

When I load http://www.domain.com/originals/123_1.jpg (301 to) --> https://www.domain.com/originals/123_1.jpg (301 to) --> https://www.domain.com/photos/123/123_l.jpg
When I load http://domain.com/originals/123_1.jpg (301 to) --> https://www.domain.com/originals/123_1.jpg (301 to) --> https://www.domain.com/photos/123/123_l.jpg

Also I want to redirect www.domain.com/search/1234/several-words to search.domain.com/1234/several-words with the first instruction but I get infinite looping.

Really what I want is to include different redirections for every subdomain and by defect load www if don't have it, but only in one step but I don't know how to do it.

Thank you,
Carlos

[edited by: phranque at 12:43 am (utc) on Dec 19, 2017]
[edit reason] unlinked urls [/edit]

[phranque]

the first thing you should do is reorder the rulesets so the hostname canonicalization redirect is last. (you have it as the second ruleset)
i would also add a condition to this rule so that it fires when either the hostname is noncanonical or it's a non-https request.

this doesn't work infinite looping

could you give an example of the redirect series in this infinite loop?

https://www.domain.com/originals/123_1.jpg (301 to) --> https://www.domain.com/photos/123/123_l.jpg

i don't see a rule that would redirect /originals/ to /photos/

[chms]

Hi phranque,

if I load https://www.domain.com/search/1244/several-words redirect continuosly to https://search.domain.com/1244/several-words although it is the correct url.

The last rule (RewriteRule ^photos/originals/([0-9]+)_1\.jpg$ https://www.domain.com/photos/$1/$1_l.jpg [R=301,L]) make that redirect.

How can I check if is noncanonical or it's a non-https request?

Thank you

[edited by: phranque at 3:02 am (utc) on Dec 19, 2017]
[edit reason] unlinked urls [/edit]

[lucy24]

i don't see a rule that would redirect /originals/ to /photos/

It's this one, isn't it?

RewriteRule ^photos/originals/([0-9]+)_1\.jpg$ https://www.domain.com/photos/$1/$1_l.jpg [R=301,L]

It redirects /photos/originals/blahblah to /photos/modified-blahblah/blahblah with a newly added subdirectory replacing /originals/

Please take a minute to absorb the rule about using example.com (or example.any-old-tld if you need more than one). There's more than one reason for this rule.

RewriteCond %{HTTP_HOST} !^search.example.com$
RewriteCond %{HTTP_HOST} !^images.example.com$
RewriteCond %{HTTP_HOST} !^css.example.com$
RewriteCond %{HTTP_HOST} !^www.example.com$
RewriteRule ^(.*) https://www.example.com/$1 [L,R=301]

This can all be collapsed to

RewriteCond %{HTTP_HOST} !^(search|images|css|www)\.example\.com$
RewriteRule ^(.*) https://www.example.com/$1 [L,R=301]

... except I don't think this rule will do exactly what you want it to. You need two rules: one for (search|css|images) non-HTTPS to HTTPS, and another one for all other incorrect host and/or protocol to https://www.example.com/etcetera.

Get rid of the blank line between Conditions and Rule. It has no effect on the server (unlike, say, blank lines in robots.txt which do have syntactic meaning), but it does create confusion in the human reader.

[phranque]

i don't see a rule that would redirect /originals/ to /photos/

It's this one, isn't it?

RewriteRule ^photos/originals/([0-9]+)_1\.jpg$ https://www.domain.com/photos/$1/$1_l.jpg [R=301,L]

It redirects /photos/originals/blahblah to /photos/modified-blahblah/blahblah with a newly added subdirectory replacing /originals/

this rule redirects ^photos/originals/blahblah to /photos/modified-blahblah/blahblah but it won't match this request:

http://www.domain.com/originals/123_1.jpg 

(i.e. it doesn't match ^originals/blahblah)

[edited by: phranque at 4:52 am (utc) on Dec 19, 2017]

[phranque]

if I load https://www.domain.com/search/1244/several-words redirect continuosly to https://search.domain.com/1244/several-words although it is the correct url.

you must add RewriteCond directives to this ruleset to exclude the rule if the protocol and hostname are already canonical (i.e. search.domain.com [AND] HTTPS is on)

How can I check if is noncanonical or it's a non-https request?

after "everything else" (meaning the more specific redirect rulesets) you will need something like this:

RewriteCond %{HTTP_HOST} !^(www\.example\.com)?$ [OR]
RewriteCond %{HTTPS} off
RewriteRule ^(.*)$ https://www.example.com/$1 [L,R=301]

with the RewriteCond modified to exclude all your canonical hostnames from the redirect to avoid chained redirects, perhaps similar to lucy24's suggestion.