Host our own PDF viewer instead of using Mozilla demo page

config/.eslintrc.js

@@ -1,6 +1,7 @@
 module.exports = {
     extends: 'expensify',
     parser: 'babel-eslint',
+    ignorePatterns: 'src/vendor',
     rules: {
         'react/jsx-filename-extension': [1, {extensions: ['.js']}],
     },

config/webpack/webpack.common.js

@@ -30,6 +30,11 @@ module.exports = {
             patterns: [
                 {from: 'web/favicon.png'},
                 {from: 'web/favicon-unread.png'},
+
+                // These files are copied over as per instructions here
+                // https://github.com/mozilla/pdf.js/wiki/Setup-pdf.js-in-a-website#examples
+                {from: 'src/vendor/pdf-js/web', to: 'pdf/web'},
+                {from: 'src/vendor/pdf-js/build', to: 'pdf/build'},
             ],
         }),
 

src/CONST.js

@@ -1,9 +1,8 @@
 const CLOUDFRONT_URL = 'https://d2k5nsl2zxldvw.cloudfront.net';
-const MOZILLA_PDF_VIEWER_URL = 'http://mozilla.github.com/pdf.js/web/viewer.html';
 
 const CONST = {
     CLOUDFRONT_URL,
-    MOZILLA_PDF_VIEWER_URL,
+    PDF_VIEWER_URL: '/pdf/web/viewer.html',
     EXPENSIFY_ICON_URL: `${CLOUDFRONT_URL}/images/favicon-2019.png`,
 };
 

src/components/PDFView/index.js

@@ -26,7 +26,7 @@ const defaultProps = {
 
 const PDFView = props => (
     <WebView
-        source={{uri: `${CONST.MOZILLA_PDF_VIEWER_URL}?file=${encodeURIComponent(props.sourceURL)}`}}
+        source={{uri: `${CONST.PDF_VIEWER_URL}?file=${encodeURIComponent(props.sourceURL)}`}}
         style={props.style}
     />
 );

src/vendor/pdf-js/web/cmaps/CNS2-V.bcmap

@@ -0,0 +1,3 @@
+�RCopyright 1990-2009 Adobe Systems Incorporated.
+All rights reserved.
+See ./LICENSE�CNS2-H

src/vendor/pdf-js/web/cmaps/ETenms-B5-H.bcmap

@@ -0,0 +1,3 @@
+�RCopyright 1990-2009 Adobe Systems Incorporated.
+All rights reserved.
+See ./LICENSE�	ETen-B5-H`
 ^

src/vendor/pdf-js/web/cmaps/GB-H.bcmap

@@ -0,0 +1,4 @@
+�RCopyright 1990-2009 Adobe Systems Incorporated.
+All rights reserved.
+See ./LICENSE

!!��]aX!!]`�21�>	�p�z�$]��"R�d�-U�7�*�4�%�+ �Z �{�/�%�<�9K�b�1]�.�"��`]�,�"]�
+�"]�h�"]�F�"]�$�"]��"]�`�"]�>�"]��"]�z�"]�X�"]�6�"]��"]�r�"]�P�"]�.�"]��"]�j�"]�H�"]�&�"]��"]�b�"]�@�"]��"]�|�"]�Z�"]�8�"]��"]�t�"]�R�"]�0�"]��"]�l�"]�J�"]�(�"]��"]�d�"]�B�"]� �"X�~�']�W�"]�5�"]��"]�q�"]�O�"]�-�"]��"]�i�"]�G�"]�%�"]��"]�a�"]�?�"]��"]�{�"]�Y�"]�7�"]��"]�s�"]�Q�"]�/�"]��"]�k�"]�I�"]�'�"]��"]�c�"]�A�"]��"]�}�"]�[�"]�9

src/vendor/pdf-js/web/cmaps/LICENSE

@@ -0,0 +1,36 @@
+%%Copyright: -----------------------------------------------------------
+%%Copyright: Copyright 1990-2009 Adobe Systems Incorporated.
+%%Copyright: All rights reserved.
+%%Copyright:
+%%Copyright: Redistribution and use in source and binary forms, with or
+%%Copyright: without modification, are permitted provided that the
+%%Copyright: following conditions are met:
+%%Copyright:
+%%Copyright: Redistributions of source code must retain the above
+%%Copyright: copyright notice, this list of conditions and the following
+%%Copyright: disclaimer.
+%%Copyright:
+%%Copyright: Redistributions in binary form must reproduce the above
+%%Copyright: copyright notice, this list of conditions and the following
+%%Copyright: disclaimer in the documentation and/or other materials
+%%Copyright: provided with the distribution. 
+%%Copyright:
+%%Copyright: Neither the name of Adobe Systems Incorporated nor the names
+%%Copyright: of its contributors may be used to endorse or promote
+%%Copyright: products derived from this software without specific prior
+%%Copyright: written permission. 
+%%Copyright:
+%%Copyright: THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+%%Copyright: CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+%%Copyright: INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+%%Copyright: MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+%%Copyright: DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+%%Copyright: CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+%%Copyright: SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+%%Copyright: NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+%%Copyright: LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+%%Copyright: HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+%%Copyright: CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+%%Copyright: OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+%%Copyright: SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+%%Copyright: -----------------------------------------------------------