diff --git a/locale/en/LC_MESSAGES/django.po b/locale/en/LC_MESSAGES/django.po
index 13f1ce72a6..ba1b8bb1b9 100644
--- a/locale/en/LC_MESSAGES/django.po
+++ b/locale/en/LC_MESSAGES/django.po
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2017-04-28 16:23+0800\n"
+"POT-Creation-Date: 2017-05-09 13:14+0800\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -110,6 +110,21 @@ msgstr ""
 msgid "Cancel failed"
 msgstr ""
 
+#: seahub/api2/endpoints/dir_shared_items.py:278
+msgid "username invalid."
+msgstr ""
+
+#: seahub/api2/endpoints/dir_shared_items.py:287
+#, python-format
+msgid "User %s not found."
+msgstr ""
+
+#: seahub/api2/endpoints/dir_shared_items.py:294
+#: seahub/api2/endpoints/dir_shared_items.py:359
+#, python-format
+msgid "This item has been shared to %s."
+msgstr ""
+
 #: seahub/api2/endpoints/file.py:404 seahub/views/file.py:1099
 msgid "Check file lock error"
 msgstr ""
@@ -838,8 +853,8 @@ msgstr ""
 #: seahub/institutions/templates/institutions/useradmin.html:57
 #: seahub/institutions/templates/institutions/useradmin_search.html:54
 #: seahub/notifications/templates/notifications/notification_list.html:33
-#: seahub/profile/templates/profile/set_profile.html:138
 #: seahub/profile/templates/profile/set_profile.html:140
+#: seahub/profile/templates/profile/set_profile.html:142
 #: seahub/templates/js/sysadmin-templates.html:391
 #: seahub/templates/js/sysadmin-templates.html:453
 #: seahub/templates/js/sysadmin-templates.html:518
@@ -936,7 +951,7 @@ msgstr ""
 #: seahub/notifications/templates/notifications/notification_list.html:14
 #: seahub/options/templates/options/set_user_options.html:14
 #: seahub/profile/templates/profile/set_profile.html:74
-#: seahub/profile/templates/profile/set_profile.html:104
+#: seahub/profile/templates/profile/set_profile.html:106
 #: seahub/share/templates/share/share_link_audit.html:22
 #: seahub/templates/decrypt_repo_form.html:11
 #: seahub/templates/file_edit.html:102 seahub/templates/file_edit.html:135
@@ -1023,7 +1038,7 @@ msgstr ""
 #: seahub/institutions/templates/institutions/user_info.html:173
 #: seahub/notifications/templates/notifications/user_notification_list.html:90
 #: seahub/share/templates/share/share_link_audit.html:70
-#: seahub/templates/base.html:141 seahub/templates/decrypt_repo_form.html:47
+#: seahub/templates/base.html:143 seahub/templates/decrypt_repo_form.html:47
 #: seahub/templates/file_edit.html:545
 #: seahub/templates/repo_dir_recycle_view.html:141
 #: seahub/templates/repo_dir_recycle_view.html:175
@@ -1348,13 +1363,13 @@ msgid "Choose a library as wiki:"
 msgstr ""
 
 #: seahub/group/templates/group/group_wiki.html:60
-#: seahub/profile/templates/profile/set_profile.html:103
+#: seahub/profile/templates/profile/set_profile.html:105
 #: seahub/templates/wiki/personal_wiki.html:57
 msgid "Please click and choose a library."
 msgstr ""
 
 #: seahub/group/templates/group/group_wiki.html:62
-#: seahub/profile/templates/profile/set_profile.html:105
+#: seahub/profile/templates/profile/set_profile.html:107
 #: seahub/templates/file_edit.html:103 seahub/templates/file_edit.html:152
 #: seahub/templates/file_edit.html:427
 #: seahub/templates/js/lib-op-popups.html:10
@@ -2142,7 +2157,7 @@ msgstr ""
 
 #: seahub/institutions/templates/institutions/useradmin.html:17
 #: seahub/institutions/templates/institutions/useradmin_search.html:19
-#: seahub/profile/templates/profile/set_profile.html:113
+#: seahub/profile/templates/profile/set_profile.html:115
 #: seahub/templates/sysadmin/sys_inst_info_admins.html:16
 #: seahub/templates/sysadmin/sys_inst_info_user.html:16
 #: seahub/templates/sysadmin/sys_inst_search_user.html:17
@@ -2655,13 +2670,13 @@ msgid "Default Library"
 msgstr ""
 
 #: seahub/profile/templates/profile/set_profile.html:19
-#: seahub/profile/templates/profile/set_profile.html:111
+#: seahub/profile/templates/profile/set_profile.html:113
 msgid "Two-Factor Authentication"
 msgstr ""
 
 #: seahub/profile/templates/profile/set_profile.html:21
-#: seahub/profile/templates/profile/set_profile.html:136
-#: seahub/profile/templates/profile/set_profile.html:159
+#: seahub/profile/templates/profile/set_profile.html:138
+#: seahub/profile/templates/profile/set_profile.html:161
 msgid "Delete Account"
 msgstr ""
 
@@ -2719,68 +2734,68 @@ msgstr ""
 msgid "Language Setting"
 msgstr ""
 
-#: seahub/profile/templates/profile/set_profile.html:90
+#: seahub/profile/templates/profile/set_profile.html:92
 msgid "Default Library Setting"
 msgstr ""
 
-#: seahub/profile/templates/profile/set_profile.html:92
+#: seahub/profile/templates/profile/set_profile.html:94
 msgid "Your default library:"
 msgstr ""
 
-#: seahub/profile/templates/profile/set_profile.html:94
+#: seahub/profile/templates/profile/set_profile.html:96
 msgid ""
 "Default library is the default place to store your personal documents and "
 "pictures."
 msgstr ""
 
-#: seahub/profile/templates/profile/set_profile.html:95
+#: seahub/profile/templates/profile/set_profile.html:97
 msgid "Choose Default Library"
 msgstr ""
 
-#: seahub/profile/templates/profile/set_profile.html:98
+#: seahub/profile/templates/profile/set_profile.html:100
 msgid "Choose default library:"
 msgstr ""
 
-#: seahub/profile/templates/profile/set_profile.html:113
+#: seahub/profile/templates/profile/set_profile.html:115
 msgid "enabled"
 msgstr ""
 
-#: seahub/profile/templates/profile/set_profile.html:115
+#: seahub/profile/templates/profile/set_profile.html:117
 msgid "Disable Two-Factor Authentication"
 msgstr ""
 
-#: seahub/profile/templates/profile/set_profile.html:119
+#: seahub/profile/templates/profile/set_profile.html:121
 msgid ""
 "If you don't have any device with you, you can access your account using "
 "backup codes."
 msgstr ""
 
-#: seahub/profile/templates/profile/set_profile.html:120
+#: seahub/profile/templates/profile/set_profile.html:122
 #, python-format
 msgid "You have only one backup code remaining."
 msgid_plural "You have %(counter)s backup codes remaining."
 msgstr[0] ""
 msgstr[1] ""
 
-#: seahub/profile/templates/profile/set_profile.html:123
+#: seahub/profile/templates/profile/set_profile.html:125
 msgid "Show Codes"
 msgstr ""
 
-#: seahub/profile/templates/profile/set_profile.html:127
+#: seahub/profile/templates/profile/set_profile.html:129
 msgid ""
 "Two-factor authentication is not enabled for your account. Enable two-factor "
 "authentication for enhanced account security."
 msgstr ""
 
-#: seahub/profile/templates/profile/set_profile.html:129
+#: seahub/profile/templates/profile/set_profile.html:131
 msgid "Enable Two-Factor Authentication"
 msgstr ""
 
-#: seahub/profile/templates/profile/set_profile.html:137
+#: seahub/profile/templates/profile/set_profile.html:139
 msgid "This operation will not be reverted. Please think twice!"
 msgstr ""
 
-#: seahub/profile/templates/profile/set_profile.html:160
+#: seahub/profile/templates/profile/set_profile.html:162
 msgid "Really want to delete your account?"
 msgstr ""
 
@@ -2814,110 +2829,118 @@ msgid "Successfully set \"%s\" as your default library."
 msgstr ""
 
 #: seahub/settings.py:143
-msgid "català"
-msgstr ""
-
-#: seahub/settings.py:144
-msgid "Deutsch"
+msgid "العربية"
 msgstr ""
 
 #: seahub/settings.py:145
-msgid "English"
-msgstr ""
-
-#: seahub/settings.py:146
-msgid "Español"
+msgid "Català"
 msgstr ""
 
 #: seahub/settings.py:147
-msgid "Español de Argentina"
+msgid "Deutsch"
 msgstr ""
 
 #: seahub/settings.py:148
-msgid "Español de México"
+msgid "ελληνικά"
 msgstr ""
 
 #: seahub/settings.py:149
-msgid "Suomi"
+msgid "English"
 msgstr ""
 
 #: seahub/settings.py:150
-msgid "français"
+msgid "Español"
 msgstr ""
 
 #: seahub/settings.py:151
-msgid "עברית"
+msgid "Español de Argentina"
 msgstr ""
 
 #: seahub/settings.py:152
-msgid "Magyar"
+msgid "Español de México"
 msgstr ""
 
 #: seahub/settings.py:153
-msgid "Íslenska"
+msgid "Suomi"
 msgstr ""
 
 #: seahub/settings.py:154
-msgid "Italiano"
+msgid "français"
 msgstr ""
 
 #: seahub/settings.py:155
-msgid "日本語"
+msgid "עברית"
 msgstr ""
 
 #: seahub/settings.py:156
-msgid "한국어"
+msgid "Magyar"
 msgstr ""
 
 #: seahub/settings.py:157
-msgid "Latvian"
+msgid "Íslenska"
 msgstr ""
 
 #: seahub/settings.py:158
-msgid "Nederlands"
+msgid "Italiano"
 msgstr ""
 
 #: seahub/settings.py:159
-msgid "Polski"
+msgid "日本語"
 msgstr ""
 
 #: seahub/settings.py:160
-msgid "Portuguese, Brazil"
-msgstr ""
-
-#: seahub/settings.py:161
-msgid "Русский"
+msgid "한국어"
 msgstr ""
 
 #: seahub/settings.py:162
-msgid "Slovak"
-msgstr ""
-
-#: seahub/settings.py:163
-msgid "Slovenian"
+msgid "Latvian"
 msgstr ""
 
 #: seahub/settings.py:164
-msgid "Svenska"
+msgid "Nederlands"
 msgstr ""
 
 #: seahub/settings.py:165
-msgid "ไทย"
+msgid "Polski"
 msgstr ""
 
 #: seahub/settings.py:166
-msgid "Türkçe"
+msgid "Portuguese, Brazil"
 msgstr ""
 
 #: seahub/settings.py:167
-msgid "українська мова"
-msgstr ""
-
-#: seahub/settings.py:168
-msgid "简体中文"
+msgid "Русский"
 msgstr ""
 
 #: seahub/settings.py:169
+msgid "Slovenian"
+msgstr ""
+
+#: seahub/settings.py:170
+msgid "Svenska"
+msgstr ""
+
+#: seahub/settings.py:171
+msgid "ไทย"
+msgstr ""
+
+#: seahub/settings.py:172
+msgid "Türkçe"
+msgstr ""
+
+#: seahub/settings.py:173
+msgid "українська мова"
+msgstr ""
+
+#: seahub/settings.py:174
+msgid "Tiếng Việt"
+msgstr ""
+
+#: seahub/settings.py:175
+msgid "简体中文"
+msgstr ""
+
+#: seahub/settings.py:176
 msgid "繁體中文"
 msgstr ""
 
@@ -3050,13 +3073,13 @@ msgstr ""
 msgid "Log out"
 msgstr ""
 
-#: seahub/templates/base.html:123 seahub/templates/base_for_backbone.html:87
+#: seahub/templates/base.html:125 seahub/templates/base_for_backbone.html:87
 #: seahub/templates/sysadmin/sysadmin_backbone.html:70
 #: seahub/views/sysadmin.py:332 seahub/views/sysadmin.py:333
 msgid "Yes"
 msgstr ""
 
-#: seahub/templates/base.html:124 seahub/templates/base_for_backbone.html:88
+#: seahub/templates/base.html:126 seahub/templates/base_for_backbone.html:88
 #: seahub/templates/sysadmin/sysadmin_backbone.html:71
 msgid "No"
 msgstr ""
@@ -6334,6 +6357,7 @@ msgid "Personal Wiki Pages"
 msgstr ""
 
 #: seahub/thumbnail/views.py:46 seahub/thumbnail/views.py:170
+#: seahub/views/__init__.py:613 seahub/views/file.py:1116
 msgid "Invalid arguments."
 msgstr ""
 
@@ -6367,10 +6391,6 @@ msgstr ""
 msgid "Please specify history ID"
 msgstr ""
 
-#: seahub/views/__init__.py:613 seahub/views/file.py:1116
-msgid "Invalid arguments"
-msgstr ""
-
 #: seahub/views/__init__.py:617
 msgid "History you specified does not exist"
 msgstr ""
diff --git a/locale/en/LC_MESSAGES/djangojs.po b/locale/en/LC_MESSAGES/djangojs.po
index 010e255088..efa46d74b2 100644
--- a/locale/en/LC_MESSAGES/djangojs.po
+++ b/locale/en/LC_MESSAGES/djangojs.po
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2017-04-28 16:23+0800\n"
+"POT-Creation-Date: 2017-05-09 13:14+0800\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -17,8 +17,8 @@ msgstr ""
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
 
-#: static/scripts/app/models/dirent.js:113 static/scripts/app/views/dir.js:623
-#: static/scripts/app/views/dir.js:694
+#: static/scripts/app/models/dirent.js:113 static/scripts/app/views/dir.js:628
+#: static/scripts/app/views/dir.js:699
 #: static/scripts/app/views/fileupload.js:366
 #: static/scripts/app/views/fileupload.js:380
 #: static/scripts/app/views/fileupload.js:392
@@ -32,8 +32,8 @@ msgstr ""
 
 #: static/scripts/app/models/repo.js:35
 #: static/scripts/app/views/dialogs/dirent-rename.js:65
-#: static/scripts/app/views/dir.js:608 static/scripts/app/views/dir.js:669
-#: static/scripts/app/views/dirent.js:429 static/scripts/app/views/repo.js:167
+#: static/scripts/app/views/dir.js:613 static/scripts/app/views/dir.js:674
+#: static/scripts/app/views/dirent.js:458 static/scripts/app/views/repo.js:167
 msgid "Name should not include '/'."
 msgstr ""
 
@@ -79,7 +79,7 @@ msgstr ""
 #: static/scripts/app/views/account.js:58
 #: static/scripts/app/views/dialogs/repo-folder-perm-admin.js:134
 #: static/scripts/app/views/dialogs/repo-share-link-admin.js:96
-#: static/scripts/app/views/dir.js:469 static/scripts/app/views/dirent.js:240
+#: static/scripts/app/views/dir.js:469 static/scripts/app/views/dirent.js:269
 #: static/scripts/app/views/group-discussions.js:125
 #: static/scripts/app/views/group-discussions.js:203
 #: static/scripts/app/views/group-discussions.js:246
@@ -139,8 +139,8 @@ msgstr ""
 #: static/scripts/app/views/dialogs/repo-folder-perm-admin.js:302
 #: static/scripts/app/views/dialogs/repo-history-settings.js:82
 #: static/scripts/app/views/dialogs/repo-history-settings.js:141
-#: static/scripts/app/views/dir.js:1262 static/scripts/app/views/dir.js:1296
-#: static/scripts/app/views/dir.js:1343 static/scripts/app/views/dirent.js:447
+#: static/scripts/app/views/dir.js:1267 static/scripts/app/views/dir.js:1301
+#: static/scripts/app/views/dir.js:1348 static/scripts/app/views/dirent.js:476
 #: static/scripts/app/views/folder-perm.js:205
 #: static/scripts/app/views/folder-share-item.js:85
 #: static/scripts/app/views/folder-share-item.js:121
@@ -234,17 +234,17 @@ msgstr ""
 
 #: static/scripts/app/views/dialogs/dirent-mvcp.js:132
 #: static/scripts/app/views/dialogs/dirent-mvcp.js:163
-#: static/scripts/app/views/dir.js:1334
+#: static/scripts/app/views/dir.js:1339
 msgid "Canceled."
 msgstr ""
 
 #: static/scripts/app/views/dialogs/dirent-mvcp.js:195
-#: static/scripts/app/views/dir.js:1106
+#: static/scripts/app/views/dir.js:1111
 msgid "Invalid destination path"
 msgstr ""
 
 #: static/scripts/app/views/dialogs/dirent-mvcp.js:214
-#: static/scripts/app/views/dirent.js:231
+#: static/scripts/app/views/dirent.js:260
 msgid "Successfully moved %(name)s"
 msgstr ""
 
@@ -261,8 +261,8 @@ msgid "Rename File"
 msgstr ""
 
 #: static/scripts/app/views/dialogs/dirent-rename.js:59
-#: static/scripts/app/views/dir.js:603 static/scripts/app/views/dir.js:664
-#: static/scripts/app/views/dirent.js:423
+#: static/scripts/app/views/dir.js:608 static/scripts/app/views/dir.js:669
+#: static/scripts/app/views/dirent.js:452
 #: static/scripts/app/views/groups.js:112
 #: static/scripts/app/views/invitations.js:54
 #: static/scripts/app/views/repo.js:161
@@ -410,127 +410,127 @@ msgstr ""
 msgid "Password is required."
 msgstr ""
 
-#: static/scripts/app/views/dir.js:675
+#: static/scripts/app/views/dir.js:680
 msgid "Only an extension there, please input a name."
 msgstr ""
 
-#: static/scripts/app/views/dir.js:713
+#: static/scripts/app/views/dir.js:718
 msgid "New File"
 msgstr ""
 
-#: static/scripts/app/views/dir.js:721
+#: static/scripts/app/views/dir.js:726
 msgid "New Markdown File"
 msgstr ""
 
-#: static/scripts/app/views/dir.js:729
+#: static/scripts/app/views/dir.js:734
 msgid "New Excel File"
 msgstr ""
 
-#: static/scripts/app/views/dir.js:737
+#: static/scripts/app/views/dir.js:742
 msgid "New PowerPoint File"
 msgstr ""
 
-#: static/scripts/app/views/dir.js:745
+#: static/scripts/app/views/dir.js:750
 msgid "New Word File"
 msgstr ""
 
-#: static/scripts/app/views/dir.js:969 static/scripts/app/views/dir.js:1111
+#: static/scripts/app/views/dir.js:974 static/scripts/app/views/dir.js:1116
 msgid "Processing..."
 msgstr ""
 
-#: static/scripts/app/views/dir.js:1006
+#: static/scripts/app/views/dir.js:1011
 msgid "Successfully deleted %(name)s."
 msgstr ""
 
-#: static/scripts/app/views/dir.js:1008
+#: static/scripts/app/views/dir.js:1013
 msgid "Successfully deleted %(name)s and 1 other item."
 msgstr ""
 
-#: static/scripts/app/views/dir.js:1010
+#: static/scripts/app/views/dir.js:1015
 msgid "Successfully deleted %(name)s and %(amount)s other items."
 msgstr ""
 
-#: static/scripts/app/views/dir.js:1019
+#: static/scripts/app/views/dir.js:1024
 msgid "Failed to delete %(name)s."
 msgstr ""
 
-#: static/scripts/app/views/dir.js:1021
+#: static/scripts/app/views/dir.js:1026
 msgid "Failed to delete %(name)s and 1 other item."
 msgstr ""
 
-#: static/scripts/app/views/dir.js:1023
+#: static/scripts/app/views/dir.js:1028
 msgid "Failed to delete %(name)s and %(amount)s other items."
 msgstr ""
 
-#: static/scripts/app/views/dir.js:1036
+#: static/scripts/app/views/dir.js:1041
 msgid "Delete Items"
 msgstr ""
 
-#: static/scripts/app/views/dir.js:1037
+#: static/scripts/app/views/dir.js:1042
 msgid "Are you sure you want to delete these selected items?"
 msgstr ""
 
-#: static/scripts/app/views/dir.js:1051
+#: static/scripts/app/views/dir.js:1056
 msgid "Move selected item(s) to:"
 msgstr ""
 
-#: static/scripts/app/views/dir.js:1051
+#: static/scripts/app/views/dir.js:1056
 msgid "Copy selected item(s) to:"
 msgstr ""
 
-#: static/scripts/app/views/dir.js:1155
+#: static/scripts/app/views/dir.js:1160
 msgid "Successfully moved %(name)s."
 msgstr ""
 
-#: static/scripts/app/views/dir.js:1157
+#: static/scripts/app/views/dir.js:1162
 msgid "Successfully moved %(name)s and 1 other item."
 msgstr ""
 
-#: static/scripts/app/views/dir.js:1159
+#: static/scripts/app/views/dir.js:1164
 msgid "Successfully moved %(name)s and %(amount)s other items."
 msgstr ""
 
-#: static/scripts/app/views/dir.js:1164
+#: static/scripts/app/views/dir.js:1169
 msgid "Successfully copied %(name)s."
 msgstr ""
 
-#: static/scripts/app/views/dir.js:1166
+#: static/scripts/app/views/dir.js:1171
 msgid "Successfully copied %(name)s and 1 other item."
 msgstr ""
 
-#: static/scripts/app/views/dir.js:1168
+#: static/scripts/app/views/dir.js:1173
 msgid "Successfully copied %(name)s and %(amount)s other items."
 msgstr ""
 
-#: static/scripts/app/views/dir.js:1180
+#: static/scripts/app/views/dir.js:1185
 msgid "Internal error. Failed to move %(name)s and %(amount)s other item(s)."
 msgstr ""
 
-#: static/scripts/app/views/dir.js:1182
+#: static/scripts/app/views/dir.js:1187
 msgid "Internal error. Failed to move %(name)s."
 msgstr ""
 
-#: static/scripts/app/views/dir.js:1186
+#: static/scripts/app/views/dir.js:1191
 msgid "Internal error. Failed to copy %(name)s and %(amount)s other item(s)."
 msgstr ""
 
-#: static/scripts/app/views/dir.js:1188
+#: static/scripts/app/views/dir.js:1193
 msgid "Internal error. Failed to copy %(name)s."
 msgstr ""
 
-#: static/scripts/app/views/dir.js:1228
+#: static/scripts/app/views/dir.js:1233
 msgid "Moving file %(index)s of %(total)s"
 msgstr ""
 
-#: static/scripts/app/views/dir.js:1228
+#: static/scripts/app/views/dir.js:1233
 msgid "Copying file %(index)s of %(total)s"
 msgstr ""
 
-#: static/scripts/app/views/dir.js:1250
+#: static/scripts/app/views/dir.js:1255
 msgid "Failed to move %(name)s"
 msgstr ""
 
-#: static/scripts/app/views/dir.js:1250
+#: static/scripts/app/views/dir.js:1255
 msgid "Failed to copy %(name)s"
 msgstr ""
 
@@ -540,7 +540,7 @@ msgid "locked by {placeholder}"
 msgstr ""
 
 #: static/scripts/app/views/dirent-grid.js:174
-#: static/scripts/app/views/dirent.js:336
+#: static/scripts/app/views/dirent.js:365
 msgid "Successfully deleted %(name)s"
 msgstr ""