Merge branch 'master' into pico-1.1

Conflicts:
	content-sample/index.md
	themes/default/font/fontello.eot
	themes/default/font/fontello.svg
	themes/default/font/fontello.ttf
	themes/default/font/fontello.woff
	themes/default/font/fontello.woff2
	themes/default/fontello.css

CHANGELOG.md

@@ -6,6 +6,9 @@ Released: -
 
 ```
 * [Changed] Improve documentation
+* [Fixed] Improve hostname detection with proxies
+* [Fixed] Fix detection of Windows-based server environments
+* [Removed] Remove Twitter links
 ```
 
 ### Version 1.0.4

README.md

@@ -5,7 +5,6 @@ Pico
 [![Version](https://picocms.github.io/badges/pico-version.svg)](https://github.com/picocms/Pico/releases/latest)
 [![Build Status](https://api.travis-ci.org/picocms/Pico.svg)](https://travis-ci.org/picocms/Pico)
 [![Freenode IRC Webchat](https://picocms.github.io/badges/pico-chat.svg)](https://webchat.freenode.net/?channels=%23picocms)
-[![Tweet Button](https://cloud.githubusercontent.com/assets/640217/11483728/b0842918-976f-11e5-9185-d53261b3125b.png)](https://twitter.com/intent/tweet?text=Pico+is+a+stupidly+simple%2C+blazing+fast%2C+flat+file+CMS.+Visit+http%3A%2F%2Fpicocms.org+and+downlaod+%23picocms+today%21+via+%40gitpicocms&related=gitpicocms)
 
 Pico is a stupidly simple, blazing fast, flat file CMS.
 

content-sample/_meta.md

@@ -3,9 +3,6 @@ social:
     - title: Visit us on GitHub
       url: https://github.com/picocms/Pico
       icon: octocat
-    - title: Check us out on Twitter
-      url: https://twitter.com/gitpicocms
-      icon: birdy
     - title: Join us on Freenode IRC Webchat
       url: https://webchat.freenode.net/?channels=%23picocms
       icon: chat

lib/Pico.php

@@ -1618,6 +1618,10 @@ class Pico
     /**
      * Returns the base URL of this Pico instance
      *
+     * Security Notice: You MUST configure Pico's base URL explicitly when
+     * using the base URL in contexts that are potentially vulnerable to
+     * HTTP Host Header Injection attacks (e.g. when generating emails).
+     *
      * @return string the base url
      */
     public function getBaseUrl()
@@ -1637,9 +1641,14 @@ class Pico
             $protocol = 'https';
         }
 
-        $this->config['base_url'] =
-            $protocol . "://" . $_SERVER['HTTP_HOST']
-            . rtrim(dirname($_SERVER['SCRIPT_NAME']), '/\\') . '/';
+        $host = $_SERVER['SERVER_NAME'];
+        if (!empty($_SERVER['HTTP_X_FORWARDED_HOST'])) {
+            $host = $_SERVER['HTTP_X_FORWARDED_HOST'];
+        } elseif (!empty($_SERVER['HTTP_HOST'])) {
+            $host = $_SERVER['HTTP_HOST'];
+        }
+
+        $this->config['base_url'] = $protocol . "://" . $host . rtrim(dirname($_SERVER['SCRIPT_NAME']), '/\\') . '/';
 
         return $this->config['base_url'];
     }
@@ -1954,7 +1963,7 @@ class Pico
      */
     public function getAbsolutePath($path)
     {
-        if (strncasecmp(PHP_OS, 'WIN', 3) === 0) {
+        if (DIRECTORY_SEPARATOR === '\\') {
             if (preg_match('/^([a-zA-Z]:\\\\|\\\\\\\\)/', $path) !== 1) {
                 $path = $this->getRootDir() . $path;
             }

themes/default/font/LICENSE.txt

@@ -20,4 +20,4 @@ Font license info
     License:    SIL OFL 1.1 <http://scripts.sil.org/OFL>
     Homepage:   http://fortawesome.github.com/Font-Awesome/
 
-    Icons:      menu, github-circled ("octocat"), twitter ("birdy"), chat
+    Icons:      menu, github-circled ("octocat"), chat

themes/default/font/fontello.svg

@@ -1,18 +1,16 @@
 <?xml version="1.0" standalone="no"?>
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
 <svg xmlns="http://www.w3.org/2000/svg">
-<metadata>Copyright (C) 2016 by original authors @ fontello.com</metadata>
+<metadata>Copyright (C) 2017 by original authors @ fontello.com</metadata>
 <defs>
 <font id="fontello" horiz-adv-x="1000" >
 <font-face font-family="fontello" font-weight="400" font-stretch="normal" units-per-em="1000" ascent="850" descent="-150" />
 <missing-glyph horiz-adv-x="1000" />
-<glyph glyph-name="chat" unicode="&#xe800;" d="M786 421q0-77-53-143t-143-104-197-38q-48 0-98 9-70-49-155-72-21-5-48-9h-2q-6 0-12 5t-6 12q-1 1-1 3t1 4 1 3l1 3t2 3 2 3 3 3 2 2q3 3 13 14t15 16 12 17 14 21 11 25q-69 40-108 98t-40 125q0 78 53 144t143 104 197 38 197-38 143-104 53-144z m214-142q0-67-40-126t-108-98q5-14 11-25t14-21 13-16 14-17 13-14q0 0 2-2t3-3 2-3 2-3l1-3t1-3 1-4-1-3q-2-8-7-13t-13-4q-27 4-48 9-85 23-155 72-50-9-98-9-151 0-263 74 32-3 49-3 90 0 172 25t148 72q69 52 107 119t37 141q0 43-13 85 72-39 114-99t42-128z" horiz-adv-x="1000" />
+<glyph glyph-name="chat" unicode="&#xe800;" d="M786 421q0-77-53-143t-143-104-197-38q-48 0-98 9-70-49-155-72-21-5-48-9h-2q-6 0-12 5t-6 12q-1 1-1 3t1 4 1 3l1 3t2 3 2 3 3 3 2 2q3 3 13 14t15 16 12 17 14 21 11 25q-69 40-108 98t-40 125q0 78 53 144t143 104 197 38 197-38 143-104 53-144z m214-142q0-67-40-126t-108-98q5-14 11-25t14-21 13-16 14-17 13-14q0 0 2-2t3-3 2-3 2-3l1-3t1-3 1-4-1-3q-2-8-7-13t-12-4q-28 4-48 9-86 23-156 72-50-9-98-9-151 0-263 74 32-3 49-3 90 0 172 25t148 72q69 52 107 119t37 141q0 43-13 85 72-39 114-99t42-128z" horiz-adv-x="1000" />
 
-<glyph glyph-name="birdy" unicode="&#xf099;" d="M904 622q-37-54-90-93 0-8 0-23 0-73-21-145t-64-139-103-117-144-82-181-30q-151 0-276 81 19-2 43-2 126 0 224 77-59 1-105 36t-64 89q19-3 34-3 24 0 48 6-63 13-104 62t-41 115v2q38-21 82-23-37 25-59 64t-22 86q0 49 25 91 68-83 164-133t208-55q-5 21-5 41 0 75 53 127t127 53q79 0 132-57 61 12 114 44-20-64-79-100 52 6 104 28z" horiz-adv-x="928.6" />
+<glyph glyph-name="octocat" unicode="&#xf09b;" d="M429 779q116 0 215-58t156-156 57-215q0-140-82-252t-211-155q-15-3-22 4t-7 17q0 1 0 43t0 75q0 54-29 79 32 3 57 10t53 22 45 37 30 58 11 84q0 67-44 115 21 51-4 114-16 5-46-6t-51-25l-21-13q-52 15-107 15t-108-15q-8 6-23 15t-47 22-47 7q-25-63-5-114-44-48-44-115 0-47 12-83t29-59 45-37 52-22 57-10q-21-20-27-58-12-5-25-8t-32-3-36 12-31 35q-11 18-27 29t-28 14l-11 1q-12 0-16-2t-3-7 5-8 7-6l4-3q12-6 24-21t18-29l6-13q7-21 24-34t37-17 39-3 31 1l13 3q0-22 0-50t1-30q0-10-8-17t-22-4q-129 43-211 155t-82 252q0 117 58 215t155 156 216 58z m-267-616q2 4-3 7-6 1-8-1-1-4 4-7 5-3 7 1z m18-19q4 3-1 9-6 5-9 2-4-3 1-9 5-6 9-2z m16-25q6 4 0 11-4 7-9 3-5-3 0-10t9-4z m24-23q4 4-2 10-7 7-11 2-5-5 2-11 6-6 11-1z m32-14q1 6-8 9-8 2-10-4t7-9q8-3 11 4z m35-3q0 7-10 6-9 0-9-6 0-7 10-6 9 0 9 6z m32 5q-1 7-10 5-9-1-8-8t10-4 8 7z" horiz-adv-x="857.1" />
 
-<glyph glyph-name="octocat" unicode="&#xf09b;" d="M857 350q0-140-82-252t-211-155q-15-3-22 4t-7 17v118q0 54-29 79 32 3 57 10t53 22 45 37 30 58 11 84q0 68-44 115 21 51-5 114-15 5-45-6t-51-25l-21-13q-52 15-107 15t-108-15q-8 6-23 15t-47 22-48 7q-24-63-4-114-44-47-44-115 0-47 12-83t29-59 45-37 52-22 57-10q-22-20-27-58-12-5-25-8t-32-3-36 12-31 35q-11 18-27 29t-28 14l-11 1q-12 0-16-2t-3-7 5-8 7-6l4-3q12-6 24-21t18-29l5-13q8-21 25-34t37-17 39-4 31 2l13 3q0-22 0-50t1-30q0-10-8-17t-22-4q-129 43-211 155t-82 252q0 117 58 215t155 156 216 58 215-58 156-156 57-215z" horiz-adv-x="857.1" />
-
-<glyph glyph-name="menu" unicode="&#xf0c9;" d="M857 100v-71q0-15-10-25t-26-11h-785q-15 0-25 11t-11 25v71q0 15 11 25t25 11h785q15 0 26-11t10-25z m0 286v-72q0-14-10-25t-26-10h-785q-15 0-25 10t-11 25v72q0 14 11 25t25 10h785q15 0 26-10t10-25z m0 285v-71q0-15-10-25t-26-11h-785q-15 0-25 11t-11 25v71q0 15 11 26t25 10h785q15 0 26-10t10-26z" horiz-adv-x="857.1" />
+<glyph glyph-name="menu" unicode="&#xf0c9;" d="M857 100v-71q0-15-10-25t-26-11h-785q-15 0-25 11t-11 25v71q0 15 11 25t25 11h785q15 0 26-11t10-25z m0 286v-72q0-14-10-25t-26-10h-785q-15 0-25 10t-11 25v72q0 14 11 25t25 10h785q15 0 26-10t10-25z m0 285v-71q0-14-10-25t-26-11h-785q-15 0-25 11t-11 25v71q0 15 11 26t25 10h785q15 0 26-10t10-26z" horiz-adv-x="857.1" />
 </font>
 </defs>
 </svg>

themes/default/fontello.css

@@ -55,7 +55,6 @@
     /* text-shadow: 1px 1px 1px rgba(127, 127, 127, 0.3); */
 }
 
-.icon-menu:before { content: '\f0c9'; } /* '' */
-.icon-octocat:before { content: '\f09b'; } /* '' */
-.icon-birdy:before { content: '\f099'; } /* '' */
 .icon-chat:before { content: '\e800'; } /* '' */
+.icon-octocat:before { content: '\f09b'; } /* '' */
+.icon-menu:before { content: '\f0c9'; } /* '' */