Replace handlebars with string.replace

The html.hbs template does not contain any logic,
so we can replace the lib with good old string.replace calls.
This significantly reduces the bundle size, as we don't have to ship
a full template engine to the client.

Signed-off-by: David Mehren <git@herrmehren.de>

package.json

@@ -40,7 +40,6 @@
     "file-type": "^16.1.0",
     "formidable": "^1.0.17",
     "graceful-fs": "^4.1.11",
-    "handlebars": "^4.5.2",
     "helmet": "^4.5.0",
     "i18n": "^0.13.0",
     "is-svg": "^4.3.1",

public/js/extra.js

@@ -17,7 +17,6 @@ import markdownitContainer from 'markdown-it-container'
 /* Defined regex markdown it plugins */
 import Plugin from 'markdown-it-regexp'
 
-import handlebars from 'handlebars'
 import 'gist-embed'
 import abcjs from 'abcjs'
 
@@ -669,19 +668,15 @@ export function exportToHTML (view) {
   tocAffix.find('*').removeClass('active').find("a[href^='#'][smoothhashscroll]").removeAttr('smoothhashscroll')
   // generate html via template
   $.get(`${serverurl}/build/html.min.css`, css => {
-    $.get(`${serverurl}/views/html.hbs`, data => {
+    $.get(`${serverurl}/views/html.hbs`, template => {
-      const template = handlebars.compile(data)
+      let html = template.replace('{{{url}}}', serverurl)
-      const context = {
+      html = html.replace('{{title}}', title)
-        url: serverurl,
+      html = html.replace('{{{css}}}', css)
-        title,
+      html = html.replace('{{{html}}}', src[0].outerHTML)
-        css,
+      html = html.replace('{{{ui-toc}}}', toc.html())
-        html: src[0].outerHTML,
+      html = html.replace('{{{ui-toc-affix}}}', tocAffix.html())
-        'ui-toc': toc.html(),
+      html = html.replace('{{{lang}}}', (md && md.meta && md.meta.lang) ? `lang="${md.meta.lang}"` : '')
-        'ui-toc-affix': tocAffix.html(),
+      html = html.replace('{{{dir}}}', (md && md.meta && md.meta.dir) ? `dir="${md.meta.dir}"` : '')
-        lang: (md && md.meta && md.meta.lang) ? `lang="${md.meta.lang}"` : null,
-        dir: (md && md.meta && md.meta.dir) ? `dir="${md.meta.dir}"` : null
-      }
-      const html = template(context)
       const blob = new Blob([html], {
         type: 'text/html;charset=utf-8'
       })

public/views/hedgedoc/footer.ejs

@@ -14,7 +14,6 @@
 <script src="https://cdnjs.cloudflare.com/ajax/libs/emojify.js/1.1.0/js/emojify.min.js" integrity="sha256-VAB5tAlKBvgaxw8oJ1crWMVbdmBVl4mP/2M8MNRl+4E=" crossorigin="anonymous" defer></script>
 <script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.2/lodash.min.js" integrity="sha256-Cv5v4i4SuYvwRYzIONifZjoc99CkwfncROMSWat1cVA=" crossorigin="anonymous" defer></script>
 <script src="https://cdnjs.cloudflare.com/ajax/libs/socket.io/2.3.1/socket.io.js" integrity="sha256-0FUwWDJ65tQsnnxtK/o5aTM880+kQzktw2mfTBF36Zs=" crossorigin="anonymous"></script>
-<script src="https://cdnjs.cloudflare.com/ajax/libs/handlebars.js/4.0.6/handlebars.min.js" integrity="sha256-1O3BtOwnPyyRzOszK6P+gqaRoXHV6JXj8HkjZmPYhCI=" crossorigin="anonymous" defer></script>
 <script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.18.1/highlight.min.js" integrity="sha256-eOgo0OtLL4cdq7RdwRUiGKLX9XsIJ7nGhWEKbohmVAQ=" crossorigin="anonymous" defer></script>
 <script src="https://cdnjs.cloudflare.com/ajax/libs/gist-embed/2.6.0/gist-embed.min.js" integrity="sha256-KyF2D6xPIJUW5sUDSs93vWyZm+1RzIpKCexxElmxl8g=" crossorigin="anonymous" defer></script>
 <script src="https://cdnjs.cloudflare.com/ajax/libs/viz.js/1.7.0/viz.js" integrity="sha256-8t+rndrF+TU4JtelmOH1lDHTMe2ovhO2UbzDArp5lY8=" crossorigin="anonymous" defer></script>

public/views/pretty.ejs

@@ -92,7 +92,6 @@
 <script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.17.1/moment-with-locales.min.js" integrity="sha256-vvT7Ok9u6GbfnBPXnbM6FVDEO8E1kTdgHOFZOAXrktA=" crossorigin="anonymous" defer></script>
 <script src="https://cdnjs.cloudflare.com/ajax/libs/mermaid/8.8.2/mermaid.min.js" integrity="sha256-KqisLh8jVMBRjpNkOhH5W9VWs+F6x6vQksLqxs7+x9A=" crossorigin="anonymous" defer></script>
 <script src="https://cdnjs.cloudflare.com/ajax/libs/emojify.js/1.1.0/js/emojify.min.js" integrity="sha256-VAB5tAlKBvgaxw8oJ1crWMVbdmBVl4mP/2M8MNRl+4E=" crossorigin="anonymous" defer></script>
-<script src="https://cdnjs.cloudflare.com/ajax/libs/handlebars.js/4.0.6/handlebars.min.js" integrity="sha256-1O3BtOwnPyyRzOszK6P+gqaRoXHV6JXj8HkjZmPYhCI=" crossorigin="anonymous" defer></script>
 <script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.18.1/highlight.min.js" integrity="sha256-eOgo0OtLL4cdq7RdwRUiGKLX9XsIJ7nGhWEKbohmVAQ=" crossorigin="anonymous" defer></script>
 <script src="https://cdnjs.cloudflare.com/ajax/libs/gist-embed/2.6.0/gist-embed.min.js" integrity="sha256-KyF2D6xPIJUW5sUDSs93vWyZm+1RzIpKCexxElmxl8g=" crossorigin="anonymous" defer></script>
 <script src="https://cdnjs.cloudflare.com/ajax/libs/viz.js/1.7.0/viz.js" integrity="sha256-8t+rndrF+TU4JtelmOH1lDHTMe2ovhO2UbzDArp5lY8=" crossorigin="anonymous" defer></script>

public/views/slide.ejs

@@ -99,7 +99,6 @@
         <script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.17.1/moment-with-locales.min.js" integrity="sha256-vvT7Ok9u6GbfnBPXnbM6FVDEO8E1kTdgHOFZOAXrktA=" crossorigin="anonymous" defer></script>
         <script src="https://cdnjs.cloudflare.com/ajax/libs/mermaid/8.8.2/mermaid.min.js" integrity="sha256-KqisLh8jVMBRjpNkOhH5W9VWs+F6x6vQksLqxs7+x9A=" crossorigin="anonymous" defer></script>
         <script src="https://cdnjs.cloudflare.com/ajax/libs/emojify.js/1.1.0/js/emojify.min.js" integrity="sha256-VAB5tAlKBvgaxw8oJ1crWMVbdmBVl4mP/2M8MNRl+4E=" crossorigin="anonymous" defer></script>
-        <script src="https://cdnjs.cloudflare.com/ajax/libs/handlebars.js/4.0.6/handlebars.min.js" integrity="sha256-1O3BtOwnPyyRzOszK6P+gqaRoXHV6JXj8HkjZmPYhCI=" crossorigin="anonymous" defer></script>
         <script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.12.0/highlight.min.js" integrity="sha256-/BfiIkHlHoVihZdc6TFuj7MmJ0TWcWsMXkeDFwhi0zw=" crossorigin="anonymous" defer></script>
         <script src="https://cdnjs.cloudflare.com/ajax/libs/gist-embed/2.6.0/gist-embed.min.js" integrity="sha256-KyF2D6xPIJUW5sUDSs93vWyZm+1RzIpKCexxElmxl8g=" crossorigin="anonymous" defer></script>
         <script src="https://cdnjs.cloudflare.com/ajax/libs/viz.js/1.7.0/viz.js" integrity="sha256-8t+rndrF+TU4JtelmOH1lDHTMe2ovhO2UbzDArp5lY8=" crossorigin="anonymous" defer></script>

yarn.lock

@@ -568,7 +568,6 @@
 
 "Idle.Js@git+https://github.com/shawnmclean/Idle.js":
   version "0.0.1"
-  uid db9beb3483a460ad638ec947867720f0ed066a62
   resolved "git+https://github.com/shawnmclean/Idle.js#db9beb3483a460ad638ec947867720f0ed066a62"
 
 JSV@^4.0.x:
@@ -586,7 +585,7 @@ abcjs@5.10.3:
   resolved "https://registry.yarnpkg.com/abcjs/-/abcjs-5.10.3.tgz#294702140ec1caa292859ba9d2af0452f7e9e046"
   integrity sha512-YGmW4CUWd7T2/HqZa/SQOTE+lXg7Z68HwwpJhHJBvdHqLi1uLCiYva1ZRGhB/MPyl1QKqJMfF+LQ1jGAEK69XQ==
   dependencies:
-    midi "git+https://github.com/paulrosen/MIDI.js.git#abcjs"
+    midi "https://github.com/paulrosen/MIDI.js.git#abcjs"
 
 abcjs@5.11.0:
   version "5.11.0"
@@ -594,7 +593,7 @@ abcjs@5.11.0:
   integrity sha512-kLehHwwttcTCVhKQaDkmqYbWBLAWmfyzYSbUQoEDAOTOX5RzDGakX8tXpzlsNHw6Lh8W8odZw44e0siwbG4TKA==
   dependencies:
     abcjs "5.10.3"
-    midi "git+https://github.com/paulrosen/MIDI.js.git#abcjs"
+    midi "https://github.com/paulrosen/MIDI.js.git#abcjs"
 
 abcjs@5.12.0:
   version "5.12.0"
@@ -602,7 +601,7 @@ abcjs@5.12.0:
   integrity sha512-pvi7SjOAKT7cRyRtywUSwYB0SNtRHKLxZUZ9Oc4E+nvpBHr8Z2/M9Pfyv3oIaiEpxlWTFK+B/H5t/DckiNFgpg==
   dependencies:
     abcjs "5.11.0"
-    midi "git+https://github.com/paulrosen/MIDI.js.git#abcjs"
+    midi "https://github.com/paulrosen/MIDI.js.git#abcjs"
 
 abstract-logging@^2.0.0:
   version "2.0.1"
@@ -2299,7 +2298,6 @@ code-point-at@^1.0.0:
 
 "codemirror@git+https://github.com/hedgedoc/CodeMirror.git":
   version "5.58.2"
-  uid f780b569b3717cdff4c8507538cc63101bfa02e1
   resolved "git+https://github.com/hedgedoc/CodeMirror.git#f780b569b3717cdff4c8507538cc63101bfa02e1"
 
 collection-visit@^1.0.0:
@@ -3311,7 +3309,6 @@ detect-libc@^1.0.2:
 
 "diff-match-patch@git+https://github.com/hackmdio/diff-match-patch.git":
   version "1.1.1"
-  uid c2f8fb9d69aa9490b764850aa86ba442c93ccf78
   resolved "git+https://github.com/hackmdio/diff-match-patch.git#c2f8fb9d69aa9490b764850aa86ba442c93ccf78"
 
 diff@5.0.0:
@@ -4698,18 +4695,6 @@ growl@1.10.5:
   resolved "https://registry.yarnpkg.com/growl/-/growl-1.10.5.tgz#f2735dc2283674fa67478b10181059355c369e5e"
   integrity sha512-qBr4OuELkhPenW6goKVXiv47US3clb3/IbuWF9KNKEijAy9oeHxU9IgzjvJhHkUzhaj7rOUD7+YGWqUjLp5oSA==
 
-handlebars@^4.5.2:
-  version "4.7.7"
-  resolved "https://registry.yarnpkg.com/handlebars/-/handlebars-4.7.7.tgz#9ce33416aad02dbd6c8fafa8240d5d98004945a1"
-  integrity sha512-aAcXm5OAfE/8IXkcZvCepKU3VzW1/39Fb5ZuqMtgI/hT8X2YgoMvBY5dLhq/cpOvw7Lk1nK/UF71aLG/ZnVYRA==
-  dependencies:
-    minimist "^1.2.5"
-    neo-async "^2.6.0"
-    source-map "^0.6.1"
-    wordwrap "^1.0.0"
-  optionalDependencies:
-    uglify-js "^3.1.4"
-
 har-schema@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/har-schema/-/har-schema-2.0.0.tgz#a94c2224ebcac04782a0d9035521f24735b7ec92"
@@ -5640,7 +5625,6 @@ js-cookie@2.2.1:
 
 "js-sequence-diagrams@git+https://github.com/hedgedoc/js-sequence-diagrams.git":
   version "2.0.1"
-  uid bda0e49b6c2754f3c7158b1dfb9ccf26efc24b39
   resolved "git+https://github.com/hedgedoc/js-sequence-diagrams.git#bda0e49b6c2754f3c7158b1dfb9ccf26efc24b39"
   dependencies:
     lodash "4.17.x"
@@ -6220,7 +6204,6 @@ lutim@^1.0.2:
 
 "lz-string@git+https://github.com/hackmdio/lz-string.git":
   version "1.4.4"
-  uid efd1f64676264d6d8871b01f4f375fc6ef4f9022
   resolved "git+https://github.com/hackmdio/lz-string.git#efd1f64676264d6d8871b01f4f375fc6ef4f9022"
 
 make-dir@^1.0.0:
@@ -6529,8 +6512,7 @@ messageformat@^2.3.0:
 
 "meta-marked@git+https://github.com/hedgedoc/meta-marked":
   version "0.4.5"
-  uid "3002adae670a6de0a845f3da7a7223d458c20d76"
+  resolved "git+https://github.com/hedgedoc/meta-marked#81d9036da9f4c3307b1787d20e89e996f4466d8c"
-  resolved "git+https://github.com/hedgedoc/meta-marked#3002adae670a6de0a845f3da7a7223d458c20d76"
   dependencies:
     js-yaml "~4.1.0"
     marked "~2.0.0"
@@ -6606,7 +6588,6 @@ micromatch@^4.0.2:
 
 "midi@git+https://github.com/paulrosen/MIDI.js.git#abcjs":
   version "0.4.2"
-  uid e593ffef81a0350f99448e3ab8111957145ff6b2
   resolved "git+https://github.com/paulrosen/MIDI.js.git#e593ffef81a0350f99448e3ab8111957145ff6b2"
 
 miller-rabin@^4.0.0:
@@ -6974,7 +6955,7 @@ negotiator@0.6.2:
   resolved "https://registry.yarnpkg.com/negotiator/-/negotiator-0.6.2.tgz#feacf7ccf525a77ae9634436a64883ffeca346fb"
   integrity sha512-hZXc7K2e+PgeI1eDBe/10Ard4ekbfrrqG8Ep+8Jmf4JID2bNg7NvCPOZN+kfF574pFQI7mum2AUqDidoKqcTOw==
 
-neo-async@^2.5.0, neo-async@^2.6.0, neo-async@^2.6.1:
+neo-async@^2.5.0, neo-async@^2.6.1:
   version "2.6.2"
   resolved "https://registry.yarnpkg.com/neo-async/-/neo-async-2.6.2.tgz#b4aafb93e3aeb2d8174ca53cf163ab7d7308305f"
   integrity sha512-Yd3UES5mWCSqR+qNT93S3UoYUkqAZ9lLg8a7g9rimsWmYGK8cVToA4/sF3RrshdyV3sAGMXVUmpMYOw+dLpOuw==
@@ -8151,9 +8132,9 @@ postcss-value-parser@^4.0.2, postcss-value-parser@^4.1.0:
   integrity sha512-97DXOFbQJhk71ne5/Mt6cOu6yxsSfM0QGQyl0L25Gca4yGWEGJaig7l7gbCX623VqTBNGLRLaVUCnNkcedlRSQ==
 
 postcss@^8.2.1, postcss@^8.2.15:
-  version "8.3.1"
+  version "8.3.2"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.3.1.tgz#71f380151c227f83b898294a46481f689f86b70a"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.3.2.tgz#ed3ec489f5428af5740cd6effcc216b4d455ee64"
-  integrity sha512-9qH0MGjsSm+fjxOi3GnwViL1otfi7qkj+l/WX5gcRGmZNGsIcqc+A5fBkE6PUobEQK4APqYVaES+B3Uti98TCw==
+  integrity sha512-y1FK/AWdZlBF5lusS5j5l4/vF67+vQZt1SXPVJ32y1kRGDQyrs1zk32hG1cInRTu14P0V+orPz+ifwW/7rR4bg==
   dependencies:
     colorette "^1.2.2"
     nanoid "^3.1.23"
@@ -10471,7 +10452,7 @@ uc.micro@^1.0.1, uc.micro@^1.0.5:
   resolved "https://registry.yarnpkg.com/uc.micro/-/uc.micro-1.0.6.tgz#9c411a802a409a91fc6cf74081baba34b24499ac"
   integrity sha512-8Y75pvTYkLJW2hWQHXxoqRgV7qb9B+9vFEtidML+7koHUFapnVJAZ6cKs+Qjz5Aw3aZWHMC6u0wJE3At+nSGwA==
 
-uglify-js@^3.1.4, uglify-js@^3.5.1:
+uglify-js@^3.5.1:
   version "3.13.9"
   resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-3.13.9.tgz#4d8d21dcd497f29cfd8e9378b9df123ad025999b"
   integrity sha512-wZbyTQ1w6Y7fHdt8sJnHfSIuWeDgk6B5rCb4E/AM6QNNPbOMIZph21PW5dRB3h7Df0GszN+t7RuUH6sWK5bF0g==
@@ -11104,11 +11085,6 @@ word-wrap@^1.2.3:
   resolved "https://registry.yarnpkg.com/word-wrap/-/word-wrap-1.2.3.tgz#610636f6b1f703891bd34771ccb17fb93b47079c"
   integrity sha512-Hz/mrNwitNRh/HUAtM/VT/5VH+ygD6DV7mYKZAtHOrbs8U7lvPS6xf7EJKMF0uW1KJCl0H701g3ZGus+muE5vQ==
 
-wordwrap@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-1.0.0.tgz#27584810891456a4171c8d0226441ade90cbcaeb"
-  integrity sha1-J1hIEIkUVqQXHI0CJkQa3pDLyus=
-
 worker-farm@^1.7.0:
   version "1.7.0"
   resolved "https://registry.yarnpkg.com/worker-farm/-/worker-farm-1.7.0.tgz#26a94c5391bbca926152002f69b84a4bf772e5a8"