Refactor bookmark import using a generic Netscape parser

Relates to #607
Relates to #608
Relates to #493 (abandoned)

Additions:
- use Composer's autoload to load 3rd-party dependencies under vendor/

Modifications:
- [import] replace the current parser with a generic, stable parser
  - move code to application/NetscapeBookmarkUtils
  - improve status report after parsing
- [router] use the same endpoint for both bookmark upload and import dialog
- [template] update bookmark import options
  - allow adding tags to all imported links
  - allow selecting the visibility (privacy) of imported links
- [tests] ensure bookmarks are properly parsed and imported in the LinkDB
  - reuse reference input from the parser's test data

See:
- https://github.com/shaarli/netscape-bookmark-parser
- https://getcomposer.org/doc/01-basic-usage.md#autoloading

Signed-off-by: VirtualTam <virtualtam@flibidi.net>

5 files changed, 60 insertions, 0 deletions

diff --git a/tests/NetscapeBookmarkUtils/input/empty.htm b/tests/NetscapeBookmarkUtils/input/empty.htm
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/tests/NetscapeBookmarkUtils/input/empty.htm
diff --git a/tests/NetscapeBookmarkUtils/input/netscape_basic.htm b/tests/NetscapeBookmarkUtils/input/netscape_basic.htm
new file mode 100644
index 00000000..affe0cf8
--- /dev/null
+++ b/tests/NetscapeBookmarkUtils/input/netscape_basic.htm
@@ -0,0 +1,11 @@
+<!DOCTYPE NETSCAPE-Bookmark-file-1>
+<!-- This is an automatically generated file.
+It will be read and overwritten.
+Do Not Edit! -->
+<TITLE>Bookmarks</TITLE>
+<H1>Bookmarks</H1>
+<DL><p>
+<DT><A HREF="https://private.tld" ADD_DATE="10/Oct/2000:13:55:36 +0300" PRIVATE="1" TAGS="private secret">Secret stuff</A>
+<DD>Super-secret stuff you're not supposed to know about
+<DT><A HREF="http://public.tld" ADD_DATE="1456433748" PRIVATE="0" TAGS="public hello world">Public stuff</A>
+</DL><p>
diff --git a/tests/NetscapeBookmarkUtils/input/netscape_nested.htm b/tests/NetscapeBookmarkUtils/input/netscape_nested.htm
new file mode 100644
index 00000000..b486fe18
--- /dev/null
+++ b/tests/NetscapeBookmarkUtils/input/netscape_nested.htm
@@ -0,0 +1,31 @@
+<!DOCTYPE NETSCAPE-Bookmark-file-1>
+<!-- This is an automatically generated file.
+It will be read and overwritten.
+Do Not Edit! -->
+<TITLE>Bookmarks</TITLE>
+<H1>Bookmarks</H1>
+<DL><p>
+  <DT><A HREF="http://nest.ed/1" ADD_DATE="1456433741" PRIVATE="0" TAGS="tag1,tag2">Nested 1</A>
+  <DT><H3 ADD_DATE="1456433722" LAST_MODIFIED="1456433739">Folder1</H3>
+  <DL><p>
+    <DT><A HREF="http://nest.ed/1-1" ADD_DATE="1456433742" PRIVATE="0" TAGS="tag1,tag2">Nested 1-1</A>
+    <DT><A HREF="http://nest.ed/1-2" ADD_DATE="1456433747" PRIVATE="0" TAGS="tag3,tag4">Nested 1-2</A>
+  </DL><p>
+  <DT><H3 ADD_DATE="1456433722">Folder2</H3>
+  <DD>This second folder contains wonderful links!
+  <DL><p>
+    <DT><A HREF="http://nest.ed/2-1" ADD_DATE="1454433742" PRIVATE="1">Nested 2-1</A>
+    <DD>First link of the second section
+    <DT><A HREF="http://nest.ed/2-2" ADD_DATE="1453233747" PRIVATE="1">Nested 2-2</A>
+    <DD>Second link of the second section
+  </DL><p>
+  <DT><H3>Folder3</H3>
+  <DL><p>
+    <DT><H3>Folder3-1</H3>
+    <DL><p>
+      <DT><A HREF="http://nest.ed/3-1" ADD_DATE="1454433742" PRIVATE="0" TAGS="tag3">Nested 3-1</A>
+      <DT><A HREF="http://nest.ed/3-2" ADD_DATE="1453233747" PRIVATE="0">Nested 3-2</A>
+    </DL><p>
+  </DL><p>
+  <DT><A HREF="http://nest.ed/2" ADD_DATE="1456733741" PRIVATE="0" TAGS="tag4">Nested 2</A>
+</DL><p>
diff --git a/tests/NetscapeBookmarkUtils/input/no_doctype.htm b/tests/NetscapeBookmarkUtils/input/no_doctype.htm
new file mode 100644
index 00000000..766d398b
--- /dev/null
+++ b/tests/NetscapeBookmarkUtils/input/no_doctype.htm
@@ -0,0 +1,7 @@
+<TITLE>Bookmarks</TITLE>
+<H1>Bookmarks</H1>
+<DL><p>
+<DT><A HREF="https://private.tld" ADD_DATE="10/Oct/2000:13:55:36 +0300" PRIVATE="1" TAGS="private secret">Secret stuff</A>
+<DD>Super-secret stuff you're not supposed to know about
+<DT><A HREF="http://public.tld" ADD_DATE="1456433748" PRIVATE="0" TAGS="public hello world">Public stuff</A>
+</DL><p>
diff --git a/tests/NetscapeBookmarkUtils/input/same_date.htm b/tests/NetscapeBookmarkUtils/input/same_date.htm
new file mode 100644
index 00000000..9d58a582
--- /dev/null
+++ b/tests/NetscapeBookmarkUtils/input/same_date.htm
@@ -0,0 +1,11 @@
+<!DOCTYPE NETSCAPE-Bookmark-file-1>
+<!-- This is an automatically generated file.
+It will be read and overwritten.
+Do Not Edit! -->
+<TITLE>Bookmarks</TITLE>
+<H1>Bookmarks</H1>
+<DL><p>
+<DT><A HREF="https://fir.st" ADD_DATE="1456433748" PRIVATE="0">Today's first link</A>
+<DT><A HREF="https://seco.nd" ADD_DATE="1456433748" PRIVATE="0">Today's second link</A>
+<DT><A HREF="https://thi.rd" ADD_DATE="1456433748" PRIVATE="0">Today's third link</A>
+</DL><p>