Feature: Convert username/email to lower case Change-Id: I2614c3f84dc7a64d9cf66dad3e8db9bd6cfada35

diff --git a/src/main/java/com/googlesource/gerrit/plugins/avatars/external/ExternalUrlAvatarProvider.java b/src/main/java/com/googlesource/gerrit/plugins/avatars/external/ExternalUrlAvatarProvider.java
index 7e718ef..fafa92e 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/avatars/external/ExternalUrlAvatarProvider.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/avatars/external/ExternalUrlAvatarProvider.java

@@ -41,6 +41,7 @@
   private String externalAvatarUrl;
   private String avatarChangeUrl;
   private String sizeParameter;
+  private boolean lowerCase;
 
   @Inject
   ExternalUrlAvatarProvider(PluginConfigFactory cfgFactory,
@@ -51,6 +52,7 @@
     externalAvatarUrl = cfg.getString("url");
     avatarChangeUrl = cfg.getString("changeUrl");
     sizeParameter = cfg.getString("sizeParameter");
+    lowerCase = cfg.getBoolean("lowerCase", false);
     ssl = canonicalUrl != null && canonicalUrl.startsWith("https://");
   }
 
@@ -118,6 +120,9 @@
         || !url.contains(placeholder)) {
       return url;
     }
+    if (lowerCase) {
+      replacement = replacement.toLowerCase();
+    }
 
     // as we can't assume anything of 'replacement', we're URL encoding it
     return url.replace(placeholder, Url.encode(replacement));

diff --git a/src/main/resources/Documentation/config.md b/src/main/resources/Documentation/config.md
index 83ab4e7..0a61965 100644
--- a/src/main/resources/Documentation/config.md
+++ b/src/main/resources/Documentation/config.md

@@ -9,6 +9,7 @@
     url = http://example.org/avatars/${user}.jpg
     changeUrl = http://example.org/account.html
     sizeParameter = s=${size}x${size}
+    lowerCase = true
 ```
 
 <a id="url">
@@ -29,5 +30,9 @@
 :	URL parameter with `${size}` placeholder to forward the preferred
 	image size to the avatar provider. Optional.
 
+<a id="lowerCase">
+`plugin.@PLUGIN@.lowerCase`
+:	Convert the username and email to lower case. Default value = false. Optional.
+
 Please note that `http://` URLs will be automatically rewritten to
 `https://`, if `gerrit.canonicalWebUrl` uses HTTPS.