Add LDAP authentication strategy to omniauth

Gemfile

@@ -23,6 +23,8 @@ gem "figaro"
 # Secure decidim with a password until all requirements are met
 gem "lockup"
 
+gem "gitlab_omniauth-ldap"
+
 group :development, :test do
   gem "byebug", "~> 10.0", platform: :mri
   gem "decidim-dev", "0.18.0"

Gemfile.lock

@@ -100,8 +100,7 @@ GEM
       actionpack (>= 3.0)
       cells (>= 4.1.6, < 5.0.0)
     charlock_holmes (0.7.6)
-    childprocess (2.0.0)
-      rake (< 13.0)
+    childprocess (3.0.0)
     chronic (0.10.2)
     coercible (1.0.0)
       descendants_tracker (~> 0.0.1)
@@ -344,7 +343,7 @@ GEM
       railties (>= 4.2)
     doorkeeper-i18n (4.0.1)
     equalizer (0.0.11)
-    erb_lint (0.0.29)
+    erb_lint (0.0.30)
       activesupport
       better_html (~> 1.0.7)
       html_tokenizer
@@ -382,7 +381,12 @@ GEM
       activesupport (>= 4.1, < 6.0)
       railties (>= 4.1, < 6.0)
       tzinfo (~> 1.2, >= 1.2.2)
-    geocoder (1.5.1)
+    geocoder (1.5.2)
+    gitlab_omniauth-ldap (2.1.1)
+      net-ldap (~> 0.16)
+      omniauth (~> 1.3)
+      pyu-ruby-sasl (>= 0.0.3.3, < 0.1)
+      rubyntlm (~> 0.5)
     globalid (0.4.2)
       activesupport (>= 4.2.0)
     graphiql-rails (1.4.11)
@@ -448,10 +452,9 @@ GEM
       actionmailer (>= 3.2)
       letter_opener (~> 1.0)
       railties (>= 3.2)
-    listen (3.1.5)
-      rb-fsevent (~> 0.9, >= 0.9.4)
-      rb-inotify (~> 0.9, >= 0.9.7)
-      ruby_dep (~> 1.2)
+    listen (3.2.0)
+      rb-fsevent (~> 0.10, >= 0.10.3)
+      rb-inotify (~> 0.9, >= 0.9.10)
     lockup (1.5.1)
       rails (>= 3, < 6.1)
     lograge (0.11.2)
@@ -487,6 +490,7 @@ GEM
     multi_xml (0.6.0)
     multipart-post (2.1.1)
     mustache (1.1.0)
+    net-ldap (0.16.1)
     netrc (0.11.0)
     nio4r (2.5.2)
     nobspw (0.6.1)
@@ -526,7 +530,7 @@ GEM
       request_store (~> 1.1)
     paper_trail-association_tracking (1.1.1)
     parallel (1.17.0)
-    parser (2.6.4.1)
+    parser (2.6.5.0)
       ast (~> 2.4.0)
     pg (1.1.4)
     pg_search (2.3.0)
@@ -544,6 +548,7 @@ GEM
     progressbar (1.10.1)
     public_suffix (4.0.1)
     puma (3.12.1)
+    pyu-ruby-sasl (0.0.3.3)
     rack (2.0.7)
     rack-attack (5.4.2)
       rack (>= 1.0, < 3)
@@ -584,7 +589,7 @@ GEM
       rake (>= 0.8.7)
       thor (>= 0.19.0, < 2.0)
     rainbow (3.0.0)
-    rake (12.3.3)
+    rake (13.0.0)
     ransack (2.1.1)
       actionpack (>= 5.0)
       activerecord (>= 5.0)
@@ -621,13 +626,13 @@ GEM
       rspec-rails (~> 3.2)
     rspec-core (3.8.2)
       rspec-support (~> 3.8.0)
-    rspec-expectations (3.8.4)
+    rspec-expectations (3.8.5)
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.8.0)
     rspec-html-matchers (0.9.1)
       nokogiri (~> 1)
       rspec (>= 3.0.0.a, < 4)
-    rspec-mocks (3.8.1)
+    rspec-mocks (3.8.2)
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.8.0)
     rspec-rails (3.8.2)
@@ -638,7 +643,7 @@ GEM
       rspec-expectations (~> 3.8.0)
       rspec-mocks (~> 3.8.0)
       rspec-support (~> 3.8.0)
-    rspec-support (3.8.2)
+    rspec-support (3.8.3)
     rspec_junit_formatter (0.3.0)
       rspec-core (>= 2, < 4, != 2.12.0)
     rubocop (0.58.2)
@@ -653,7 +658,7 @@ GEM
       rubocop (>= 0.58.0)
     ruby-ole (1.2.12.2)
     ruby-progressbar (1.10.1)
-    ruby_dep (1.5.0)
+    rubyntlm (0.6.2)
     rubyzip (1.3.0)
     safe_yaml (1.0.5)
     sass (3.4.25)
@@ -668,10 +673,10 @@ GEM
       sprockets-rails
       tilt
     searchlight (4.1.0)
-    selenium-webdriver (3.142.5)
-      childprocess (>= 0.5, < 3.0)
+    selenium-webdriver (3.142.6)
+      childprocess (>= 0.5, < 4.0)
       rubyzip (>= 1.2.2)
-    sidekiq (6.0.0)
+    sidekiq (6.0.1)
       connection_pool (>= 2.2.2)
       rack (>= 2.0.0)
       rack-protection (>= 2.0.0)
@@ -763,6 +768,7 @@ DEPENDENCIES
   deface
   faker
   figaro
+  gitlab_omniauth-ldap
   letter_opener_web (~> 1.3)
   listen (~> 3.1)
   lockup

app/assets/stylesheets/_buehl.scss

@@ -135,6 +135,11 @@ a:hover .author__name{
    z-index: 701;
 }
 
+.button--ldap .button--social__icon .icon{
+         display: unset !important;
+         height: unset;
+}
+
 .section-heading.section-heading:before{
    background: image-url("buehl/icon.svg") no-repeat center;
    background-size: contain;