snapshot of https://github.com/toeverything/AFFiNE.git (canary, 2026-09-16; blobs > 131072B omitted)

packages/common/native/Cargo.toml

@@ -0,0 +1,27 @@
+[package]
+edition      = "2024"
+license-file = "LICENSE"
+name         = "affine_common"
+publish      = false
+version      = "0.1.0"
+
+[features]
+default  = []
+hashcash = ["chrono", "hex", "sha3", "rand"]
+napi     = ["dep:napi"]
+
+[dependencies]
+chrono = { workspace = true, optional = true }
+hex    = { workspace = true, optional = true }
+napi   = { workspace = true, optional = true }
+rand   = { workspace = true, optional = true }
+sha3   = { workspace = true, optional = true }
+
+[dev-dependencies]
+criterion = { workspace = true }
+rayon     = { workspace = true }
+tempfile  = "3"
+
+[[bench]]
+harness = false
+name    = "hashcash"

packages/common/native/LICENSE

@@ -0,0 +1,44 @@
+The AFFiNE Enterprise Edition (EE) license (the “EE License”)
+Copyright (c) 2022-present TOEVERYTHING PTE. LTD. and its affiliates.
+
+With regard to the AFFiNE Software:
+
+This software and associated documentation files (the "Software") may only be
+used in production, if you (and any entity that you represent) have agreed to,
+and are in compliance with, the AFFiNE Subscription Terms of Service, available
+at https://affine.pro/terms/#subscription (the “EE Terms”), or other
+agreement governing the use of the Software, as agreed by you and AFFiNE,
+and otherwise have a valid AFFiNE Enterprise Edition subscription for the
+correct number of user seats. Subject to the foregoing sentence, you are free to
+modify this Software and publish patches to the Software. You agree that AFFiNE
+and/or its licensors (as applicable) retain all right, title and interest in and
+to all such modifications and/or patches, and all such modifications and/or
+patches may only be used, copied, modified, displayed, distributed, or otherwise
+exploited with a valid AFFiNE Enterprise Edition subscription for the correct
+number of user seats. Notwithstanding the foregoing, you may copy and modify
+the Software for development and testing purposes, without requiring a
+subscription. You agree that AFFiNE and/or its licensors (as applicable) retain
+all right, title and interest in and to all such modifications. You are not
+granted any other rights beyond what is expressly stated herein. Subject to the
+foregoing, it is forbidden to copy, merge, publish, distribute, sublicense,
+and/or sell the Software.
+
+This EE License applies only to the part of this Software that is not
+distributed as part of AFFiNE Community Edition (CE). Any part of this Software
+distributed as part of AFFiNE CE or is served client-side as an image, font,
+cascading stylesheet (CSS), file which produces or is compiled, arranged,
+augmented, or combined into client-side JavaScript, in whole or in part, is
+copyrighted under the MPL2.0 license. The full text of this EE License shall
+be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+For all third party components incorporated into the AFFiNE Software, those
+components are licensed under the original license provided by the owner of the
+applicable component.

packages/common/native/benches/hashcash.rs

@@ -0,0 +1,27 @@
+use std::hint::black_box;
+
+use affine_common::hashcash::Stamp;
+use criterion::{BenchmarkId, Criterion, criterion_group, criterion_main};
+
+fn bench_hashcash(c: &mut Criterion) {
+  let mut group = c.benchmark_group("hashcash");
+
+  group.bench_function(BenchmarkId::from_parameter("Generate"), |b| {
+    b.iter(|| {
+      black_box(Stamp::mint("test".to_string(), Some(20)).format());
+    });
+  });
+
+  group.bench_function(BenchmarkId::from_parameter("Verify"), |b| {
+    b.iter(|| {
+      black_box(
+        Stamp::try_from("1:20:20241114061212:test::RsRAAkoxjr4FattQ:292f0d")
+          .unwrap()
+          .check(20, "test"),
+      );
+    });
+  });
+}
+
+criterion_group!(benches, bench_hashcash);
+criterion_main!(benches);

packages/common/native/fixtures/demo.docx.0.md

@@ -0,0 +1,182 @@
+# DOCX Demo
+
+# <a name="OLE_LINK1"></a><a name="OLE_LINK2"></a><a name="_Toc359077851"></a>Demonstration of DOCX support in calibre
+
+This document demonstrates the ability of the calibre DOCX Input plugin to convert the various typographic features in a Microsoft Word (2007 and newer) document. Convert this document to a modern ebook format, such as AZW3 for Kindles or EPUB for other ebook readers, to see it in action.
+
+There is support for images, tables, lists, footnotes, endnotes, links, dropcaps and various types of text and paragraph level formatting.
+
+To see the DOCX conversion in action, simply add this file to calibre using the **“Add Books” **button and then click “**Convert”. ** Set the output format in the top right corner of the conversion dialog to EPUB or AZW3 and click **“OK”**.
+
+# <a name="_Toc359077852"></a>Text Formatting
+
+## <a name="_Toc359077853"></a>Inline formatting
+
+Here, we demonstrate various types of inline text formatting and the use of embedded fonts.
+
+Here is some **bold, ***italic, ****bold-italic, ***__underlined __and ~~struck out ~~ text. Then, we have a superscript and a subscript. Now we see some red, green and blue text. Some text with a yellow highlight. Some text in a box. Some text in inverse video.
+
+A paragraph with styled text: subtle emphasis  followed by strong text and intense emphasis. This paragraph uses document wide styles for styling rather than inline text properties as demonstrated in the previous paragraph — calibre can handle both with equal ease.
+
+## <a name="_Toc359077854"></a>Fun with fonts
+
+This document has embedded the Ubuntu font family. The body text is in the Ubuntu typeface, here is some text in the Ubuntu Mono typeface, notice how every letter has the same width, even i and m. Every embedded font will automatically be embedded in the output ebook during conversion. 
+
+## ***<a name="_Paragraph_level_formatting"></a>******<a name="_Toc359077855"></a>******Paragraph level formatting***
+
+You can do crazy things with paragraphs, if the urge strikes you. For instance this paragraph is right aligned and has a right border. It has also been given a light gray background.
+
+For the lovers of poetry amongst you, paragraphs with hanging indents, like this often come in handy. You can use hanging indents to ensure that a line of poetry retains its individual identity as a line even when the screen is  too narrow to display it as a single line. Not only does this paragraph have a hanging indent, it is also has an extra top margin, setting it apart from the preceding paragraph.
+
+# <a name="_Toc359077856"></a>Tables
+
+|             |          |
+| ----------- | -------- |
+| ITEM        | NEEDED   |
+| Books       | 1        |
+| Pens        | 3        |
+| Pencils     | 2        |
+| Highlighter | 2 colors |
+| Scissors    | 1 pair   |
+
+Tables in Word can vary from the extremely simple to the extremely complex. calibre tries to do its best when converting tables. While you may run into trouble with the occasional table, the vast majority of common cases should be converted very well, as demonstrated in this section. Note that for optimum results, when creating tables in Word, you should set their widths using percentages, rather than absolute units.  To the left of this paragraph is a floating two column table with a nice green border and header row.
+
+Now let’s look at a fancier table—one with alternating row colors and partial borders. This table is stretched out to take 100% of the available width.
+
+|              |         |         |         |         |         |
+| ------------ | ------- | ------- | ------- | ------- | ------- |
+| City or Town | Point A | Point B | Point C | Point D | Point E |
+| Point A      | —     |         |         |         |         |
+| Point B      | 87      | —     |         |         |         |
+| Point C      | 64      | 56      | —     |         |         |
+| Point D      | 37      | 32      | 91      | —     |         |
+| Point E      | 93      | 35      | 54      | 43      | —     |
+
+Next, we see a table with special formatting in various locations. Notice how the formatting for the header row and sub header rows is preserved.
+
+|                  |               |                     |        |
+| ---------------- | ------------- | ------------------- | ------ |
+| College          | New students  | Graduating students | Change |
+|                  | Undergraduate |                     |        |
+| Cedar University | 110           | 103                 | +7     |
+| Oak Institute    | 202           | 210                 | -8     |
+|                  | Graduate      |                     |        |
+| Cedar University | 24            | 20                  | +4     |
+| Elm College      | 43            | 53                  | -10    |
+| Total            | 998           | 908                 | 90     |
+
+Source: Fictitious data, for illustration purposes only
+
+Next, we have something a little more complex, a nested table, i.e. a table inside another table. Additionally, the inner table has some of its cells merged. The table is displayed horizontally centered.
+
+|     |                                                                |
+| --- | -------------------------------------------------------------- |
+|     | To the left is a table inside a table, with some cells merged. |
+
+We end with a fancy calendar, note how much of the original formatting is preserved. Note that this table will only display correctly on relatively wide screens. In general, very wide tables or tables whose cells have fixed width requirements don’t fare well in ebooks.
+
+|               |  |     |  |     |  |     |  |     |  |     |  |     |
+| ------------- |  | --- |  | --- |  | --- |  | --- |  | --- |  | --- |
+| December 2007 |  |     |  |     |  |     |  |     |  |     |  |     |
+| Sun           |  | Mon |  | Tue |  | Wed |  | Thu |  | Fri |  | Sat |
+|               |  |     |  |     |  |     |  |     |  |     |  | 1   |
+|               |  |     |  |     |  |     |  |     |  |     |  |     |
+| 2             |  | 3   |  | 4   |  | 5   |  | 6   |  | 7   |  | 8   |
+|               |  |     |  |     |  |     |  |     |  |     |  |     |
+| 9             |  | 10  |  | 11  |  | 12  |  | 13  |  | 14  |  | 15  |
+|               |  |     |  |     |  |     |  |     |  |     |  |     |
+| 16            |  | 17  |  | 18  |  | 19  |  | 20  |  | 21  |  | 22  |
+|               |  |     |  |     |  |     |  |     |  |     |  |     |
+| 23            |  | 24  |  | 25  |  | 26  |  | 27  |  | 28  |  | 29  |
+|               |  |     |  |     |  |     |  |     |  |     |  |     |
+| 30            |  | 31  |  |     |  |     |  |     |  |     |  |     |
+
+# <a name="_Toc359077857"></a>Structural Elements
+
+Miscellaneous structural elements you can add to your document, like footnotes, endnotes, dropcaps and the like. 
+
+## <a name="_Toc359077858"></a>Footnotes & Endnotes
+
+Footnotes and endnotes are automatically recognized and both are converted to endnotes, with backlinks for maximum ease of use in ebook devices.
+
+## <a name="_Toc359077859"></a>Dropcaps
+
+D
+
+rop caps are used to emphasize the leading paragraph at the start of a section. In Word it is possible to specify how many lines of text a drop-cap should use. Because of limitations in ebook technology, this is not possible when converting.  Instead, the converted drop cap will use font size and line height to simulate the effect as well as possible. While not as good as the original, the result is usually tolerable. This paragraph has a “D” dropcap set to occupy three lines of text with a font size of 58.5 pts. Depending on the screen width and capabilities of the device you view the book on, this dropcap can look anything from perfect to ugly.
+
+## <a name="_Toc359077860"></a>Links
+
+Two kinds of links are possible, those that refer to an external website and those that refer to locations inside the document itself. Both are supported by calibre. For example, here is a link pointing to the [calibre download page](http://calibre-ebook.com/download). Then we have a link that points back to the section on [paragraph level formatting](#_Paragraph_level_formatting) in this document.
+
+## <a name="_Toc359077861"></a>Table of Contents
+
+There are two approaches that calibre takes when generating a Table of Contents. The first is if the Word document has a Table of Contents itself. Provided that the Table of Contents uses hyperlinks, calibre will automatically use it. The levels of the Table of Contents are identified by their left indent, so if you want the ebook to have a multi-level Table of Contents, make sure you create a properly indented Table of Contents in Word.
+
+If no Table of Contents is found in the document, then a table of contents is automatically generated from the headings in the document. A heading is identified as something that has the Heading 1 or Heading 2, etc. style applied to it. These headings are turned into a Table of Contents with Heading 1 being the topmost level, Heading 2 the second level and so on.
+
+ You can see the Table of Contents created by calibre by clicking the Table of Contents button in whatever viewer you are using to view the converted ebook. 
+
+# <a name="_Toc359077862"></a>Images
+
+Images can be of three main types. Inline images are images that are part of the normal text flow, like this image of a green dot ![dot_green.png](./media/image2.png). Inline images do not cause breaks in the text and are usually small in size. The next category of image is a floating image, one that “floats “ on the page and is surrounded by text. Word supports more types of floating images than are possible with current ebook technology, so the conversion maps floating images to simple left and right floats, as you can see with the left and right arrow images on the sides of this paragraph.
+
+The final type of image is a “block” image, one that becomes a paragraph on its own and has no text on either side. Below is a centered green dot.
+
+Centered images like this are useful for large pictures that should be a focus of attention. 
+
+Generally, it is not possible to translate the exact positioning of images from a Word document to an ebook. That is because in Word, image positioning is specified in absolute units from the page boundaries.  There is no analogous technology in ebooks, so the conversion will usually end up placing the image either centered or floating close to the point in the text where it was inserted, not necessarily where it appears on the page in Word.
+
+# <a name="_Toc359077863"></a>Lists
+
+All types of lists are supported by the conversion, with the exception of lists that use fancy bullets, these get converted to regular bullets.
+
+## <a name="_Toc359077864"></a>Bulleted List
+
+- One
+
+- Two
+
+## <a name="_Toc359077865"></a>Numbered List
+
+1. One, with a very long line to demonstrate that the hanging indent for the list is working correctly
+
+2. Two
+
+## <a name="_Toc359077866"></a>Multi-level Lists
+
+1. One
+
+    2. Two
+
+        3. Three
+
+        4. Four with a very long line to demonstrate that the hanging indent for the list is working correctly.
+
+        5. Five
+
+6. Six
+
+A Multi-level list with bullets:
+
+- One
+
+    - Two
+
+        - This bullet uses an image as the bullet item
+
+            - Four
+
+- Five
+
+## <a name="_Toc359077867"></a>Continued Lists
+
+i. One
+
+j. Two
+
+An interruption in our regularly scheduled listing, for this essential and very relevant public service announcement.
+
+k. We now resume our normal programming
+
+l. Four

packages/common/native/fixtures/demo.docx.md

@@ -0,0 +1,182 @@
+# DOCX Demo
+
+# <a name="OLE_LINK1"></a><a name="OLE_LINK2"></a><a name="_Toc359077851"></a>Demonstration of DOCX support in calibre
+
+This document demonstrates the ability of the calibre DOCX Input plugin to convert the various typographic features in a Microsoft Word (2007 and newer) document. Convert this document to a modern ebook format, such as AZW3 for Kindles or EPUB for other ebook readers, to see it in action.
+
+There is support for images, tables, lists, footnotes, endnotes, links, dropcaps and various types of text and paragraph level formatting.
+
+To see the DOCX conversion in action, simply add this file to calibre using the **“Add Books” **button and then click “**Convert”. ** Set the output format in the top right corner of the conversion dialog to EPUB or AZW3 and click **“OK”**.
+
+# <a name="_Toc359077852"></a>Text Formatting
+
+## <a name="_Toc359077853"></a>Inline formatting
+
+Here, we demonstrate various types of inline text formatting and the use of embedded fonts.
+
+Here is some **bold, ***italic, ****bold-italic, ***__underlined __and ~~struck out ~~ text. Then, we have a superscript and a subscript. Now we see some red, green and blue text. Some text with a yellow highlight. Some text in a box. Some text in inverse video.
+
+A paragraph with styled text: subtle emphasis  followed by strong text and intense emphasis. This paragraph uses document wide styles for styling rather than inline text properties as demonstrated in the previous paragraph — calibre can handle both with equal ease.
+
+## <a name="_Toc359077854"></a>Fun with fonts
+
+This document has embedded the Ubuntu font family. The body text is in the Ubuntu typeface, here is some text in the Ubuntu Mono typeface, notice how every letter has the same width, even i and m. Every embedded font will automatically be embedded in the output ebook during conversion. 
+
+## ***<a name="_Paragraph_level_formatting"></a>******<a name="_Toc359077855"></a>******Paragraph level formatting***
+
+You can do crazy things with paragraphs, if the urge strikes you. For instance this paragraph is right aligned and has a right border. It has also been given a light gray background.
+
+For the lovers of poetry amongst you, paragraphs with hanging indents, like this often come in handy. You can use hanging indents to ensure that a line of poetry retains its individual identity as a line even when the screen is  too narrow to display it as a single line. Not only does this paragraph have a hanging indent, it is also has an extra top margin, setting it apart from the preceding paragraph.
+
+# <a name="_Toc359077856"></a>Tables
+
+|             |          |
+| ----------- | -------- |
+| ITEM        | NEEDED   |
+| Books       | 1        |
+| Pens        | 3        |
+| Pencils     | 2        |
+| Highlighter | 2 colors |
+| Scissors    | 1 pair   |
+
+Tables in Word can vary from the extremely simple to the extremely complex. calibre tries to do its best when converting tables. While you may run into trouble with the occasional table, the vast majority of common cases should be converted very well, as demonstrated in this section. Note that for optimum results, when creating tables in Word, you should set their widths using percentages, rather than absolute units.  To the left of this paragraph is a floating two column table with a nice green border and header row.
+
+Now let’s look at a fancier table—one with alternating row colors and partial borders. This table is stretched out to take 100% of the available width.
+
+|              |         |         |         |         |         |
+| ------------ | ------- | ------- | ------- | ------- | ------- |
+| City or Town | Point A | Point B | Point C | Point D | Point E |
+| Point A      | —     |         |         |         |         |
+| Point B      | 87      | —     |         |         |         |
+| Point C      | 64      | 56      | —     |         |         |
+| Point D      | 37      | 32      | 91      | —     |         |
+| Point E      | 93      | 35      | 54      | 43      | —     |
+
+Next, we see a table with special formatting in various locations. Notice how the formatting for the header row and sub header rows is preserved.
+
+|                  |               |                     |        |
+| ---------------- | ------------- | ------------------- | ------ |
+| College          | New students  | Graduating students | Change |
+|                  | Undergraduate |                     |        |
+| Cedar University | 110           | 103                 | +7     |
+| Oak Institute    | 202           | 210                 | -8     |
+|                  | Graduate      |                     |        |
+| Cedar University | 24            | 20                  | +4     |
+| Elm College      | 43            | 53                  | -10    |
+| Total            | 998           | 908                 | 90     |
+
+Source: Fictitious data, for illustration purposes only
+
+Next, we have something a little more complex, a nested table, i.e. a table inside another table. Additionally, the inner table has some of its cells merged. The table is displayed horizontally centered.
+
+|     |                                                                |
+| --- | -------------------------------------------------------------- |
+|     | To the left is a table inside a table, with some cells merged. |
+
+We end with a fancy calendar, note how much of the original formatting is preserved. Note that this table will only display correctly on relatively wide screens. In general, very wide tables or tables whose cells have fixed width requirements don’t fare well in ebooks.
+
+|               |  |     |  |     |  |     |  |     |  |     |  |     |
+| ------------- |  | --- |  | --- |  | --- |  | --- |  | --- |  | --- |
+| December 2007 |  |     |  |     |  |     |  |     |  |     |  |     |
+| Sun           |  | Mon |  | Tue |  | Wed |  | Thu |  | Fri |  | Sat |
+|               |  |     |  |     |  |     |  |     |  |     |  | 1   |
+|               |  |     |  |     |  |     |  |     |  |     |  |     |
+| 2             |  | 3   |  | 4   |  | 5   |  | 6   |  | 7   |  | 8   |
+|               |  |     |  |     |  |     |  |     |  |     |  |     |
+| 9             |  | 10  |  | 11  |  | 12  |  | 13  |  | 14  |  | 15  |
+|               |  |     |  |     |  |     |  |     |  |     |  |     |
+| 16            |  | 17  |  | 18  |  | 19  |  | 20  |  | 21  |  | 22  |
+|               |  |     |  |     |  |     |  |     |  |     |  |     |
+| 23            |  | 24  |  | 25  |  | 26  |  | 27  |  | 28  |  | 29  |
+|               |  |     |  |     |  |     |  |     |  |     |  |     |
+| 30            |  | 31  |  |     |  |     |  |     |  |     |  |     |
+
+# <a name="_Toc359077857"></a>Structural Elements
+
+Miscellaneous structural elements you can add to your document, like footnotes, endnotes, dropcaps and the like. 
+
+## <a name="_Toc359077858"></a>Footnotes & Endnotes
+
+Footnotes and endnotes are automatically recognized and both are converted to endnotes, with backlinks for maximum ease of use in ebook devices.
+
+## <a name="_Toc359077859"></a>Dropcaps
+
+D
+
+rop caps are used to emphasize the leading paragraph at the start of a section. In Word it is possible to specify how many lines of text a drop-cap should use. Because of limitations in ebook technology, this is not possible when converting.  Instead, the converted drop cap will use font size and line height to simulate the effect as well as possible. While not as good as the original, the result is usually tolerable. This paragraph has a “D” dropcap set to occupy three lines of text with a font size of 58.5 pts. Depending on the screen width and capabilities of the device you view the book on, this dropcap can look anything from perfect to ugly.
+
+## <a name="_Toc359077860"></a>Links
+
+Two kinds of links are possible, those that refer to an external website and those that refer to locations inside the document itself. Both are supported by calibre. For example, here is a link pointing to the [calibre download page](http://calibre-ebook.com/download). Then we have a link that points back to the section on [paragraph level formatting](#_Paragraph_level_formatting) in this document.
+
+## <a name="_Toc359077861"></a>Table of Contents
+
+There are two approaches that calibre takes when generating a Table of Contents. The first is if the Word document has a Table of Contents itself. Provided that the Table of Contents uses hyperlinks, calibre will automatically use it. The levels of the Table of Contents are identified by their left indent, so if you want the ebook to have a multi-level Table of Contents, make sure you create a properly indented Table of Contents in Word.
+
+If no Table of Contents is found in the document, then a table of contents is automatically generated from the headings in the document. A heading is identified as something that has the Heading 1 or Heading 2, etc. style applied to it. These headings are turned into a Table of Contents with Heading 1 being the topmost level, Heading 2 the second level and so on.
+
+ You can see the Table of Contents created by calibre by clicking the Table of Contents button in whatever viewer you are using to view the converted ebook. 
+
+# <a name="_Toc359077862"></a>Images
+
+Images can be of three main types. Inline images are images that are part of the normal text flow, like this image of a green dot ![dot_green.png](./media/image2.png). Inline images do not cause breaks in the text and are usually small in size. The next category of image is a floating image, one that “floats “ on the page and is surrounded by text. Word supports more types of floating images than are possible with current ebook technology, so the conversion maps floating images to simple left and right floats, as you can see with the left and right arrow images on the sides of this paragraph.
+
+The final type of image is a “block” image, one that becomes a paragraph on its own and has no text on either side. Below is a centered green dot.
+
+Centered images like this are useful for large pictures that should be a focus of attention. 
+
+Generally, it is not possible to translate the exact positioning of images from a Word document to an ebook. That is because in Word, image positioning is specified in absolute units from the page boundaries.  There is no analogous technology in ebooks, so the conversion will usually end up placing the image either centered or floating close to the point in the text where it was inserted, not necessarily where it appears on the page in Word.
+
+# <a name="_Toc359077863"></a>Lists
+
+All types of lists are supported by the conversion, with the exception of lists that use fancy bullets, these get converted to regular bullets.
+
+## <a name="_Toc359077864"></a>Bulleted List
+
+- One
+
+- Two
+
+## <a name="_Toc359077865"></a>Numbered List
+
+1. One, with a very long line to demonstrate that the hanging indent for the list is working correctly
+
+2. Two
+
+## <a name="_Toc359077866"></a>Multi-level Lists
+
+1. One
+
+    2. Two
+
+        3. Three
+
+        4. Four with a very long line to demonstrate that the hanging indent for the list is working correctly.
+
+        5. Five
+
+6. Six
+
+A Multi-level list with bullets:
+
+- One
+
+    - Two
+
+        - This bullet uses an image as the bullet item
+
+            - Four
+
+- Five
+
+## <a name="_Toc359077867"></a>Continued Lists
+
+i. One
+
+j. Two
+
+An interruption in our regularly scheduled listing, for this essential and very relevant public service announcement.
+
+k. We now resume our normal programming
+
+l. Four

packages/common/native/fixtures/demo.ydoc.json

@@ -0,0 +1,567 @@
+{
+  "blocks": [
+    {
+      "block_id": "F_zl1z0ex6dSxM25ZBUWk",
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+    {
+      "block_id": "ErTXTP8VqP5fabuB5FZHH",
+      "flavour": "affine:image",
+      "content": [
+        ""
+      ],
+      "blob": [
+        "HWvCItS78DzPGbwcuaGcfkpVDUvL98IvH5SIK8-AcL8="
+      ],
+      "ref_doc_id": null,
+      "ref_info": null,
+      "parent_flavour": "affine:surface",
+      "parent_block_id": "Jn4N8YdsFnqjBn-ae5zeR",
+      "additional": "{\"displayMode\":\"edgeless\"}"
+    },
+    {
+      "block_id": "hMg8RXNlkD7XJS9b27fGA",
+      "flavour": "affine:image",
+      "content": [
+        ""
+      ],
+      "blob": [
+        "ZRKpsBoC88qEMmeiXKXqywfA1rLvWoLa5rpEh9x9Oj0="
+      ],
+      "ref_doc_id": null,
+      "ref_info": null,
+      "parent_flavour": "affine:surface",
+      "parent_block_id": "Jn4N8YdsFnqjBn-ae5zeR",
+      "additional": "{\"displayMode\":\"edgeless\"}"
+    }
+  ],
+  "title": "Write, Draw, Plan all at Once.",
+  "summary": "AFFiNE is an open source all in one workspace, an operating system for all the building blocks of your team wiki, knowledge management and digital assets and a better alternative to Notion and Miro. You own your data, with no compromisesLocal-first & Real-time collaborativeWe love the idea proposed by Ink & Switch in the famous article about you owning your data, despite the cloud. Furthermore, AFFiNE is the first all-in-one workspace that keeps your data ownership with no compromises on real-time collaboration and editing experience.AFFiNE is a local-first application upon CRDTs with real-time collaboration support. Your data is always stored locally while multiple nodes remain synced in real-time.Blocks that assemble your next docs, tasks kanban or whiteboardThere is a large overlap of their atomic \"building blocks\" between these apps. They are neither open source nor have a plugin system like VS Code for contributors to customize. We want to have something that contains all the features we love and goes one step further. "
+}

packages/common/native/fixtures/sample.c

@@ -0,0 +1,7 @@
+
+#include <stdio.h>
+
+int main() {
+    printf("Hello, World!\n");
+    return 0;
+}

packages/common/native/fixtures/sample.c.0.md

@@ -0,0 +1 @@
+#include <stdio.h>

packages/common/native/fixtures/sample.c.1.md

@@ -0,0 +1,4 @@
+int main() {
+    printf("Hello, World!\n");
+    return 0;
+}

packages/common/native/fixtures/sample.html

@@ -0,0 +1,481 @@
+<!doctype html>
+<!-- saved from url=(0020)https://example.org/ -->
+<html>
+  <head>
+    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+    <title>Example Domain</title>
+
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
+    <style type="text/css">
+      body {
+        background-color: #f0f0f2;
+        margin: 0;
+        padding: 0;
+        font-family: -apple-system, system-ui, BlinkMacSystemFont, 'Segoe UI',
+          'Open Sans', 'Helvetica Neue', Helvetica, Arial, sans-serif;
+      }
+      div {
+        width: 600px;
+        margin: 5em auto;
+        padding: 2em;
+        background-color: #fdfdff;
+        border-radius: 0.5em;
+        box-shadow: 2px 3px 7px 2px rgba(0, 0, 0, 0.02);
+      }
+      a:link,
+      a:visited {
+        color: #38488f;
+        text-decoration: none;
+      }
+      @media (max-width: 700px) {
+        div {
+          margin: 0 auto;
+          width: auto;
+        }
+      }
+    </style>
+  </head>
+
+  <body>
+    <div>
+      <h1>Example Domain</h1>
+      <p>
+        This domain is for use in illustrative examples in documents. You may
+        use this domain in literature without prior coordination or asking for
+        permission.
+      </p>
+      <p>
+        <a
+          href="https://www.iana.org/domains/example"
+          rel="noreferrer"
+          data-ss1736873651="1"
+          >More information...</a
+        >
+      </p>
+    </div>
+  </body>
+  <script type="text/javascript">
+    (function (
+      canvas,
+      canvasfont,
+      audioblock,
+      battery,
+      webgl,
+      webrtcdevice,
+      gamepad,
+      webvr,
+      bluetooth,
+      timezone,
+      clientrects,
+      clipboard,
+      browserplugins
+    ) {
+      function processFunctions(scope) {
+        /* Browser Plugins */
+        if (browserplugins == 'true') {
+          scope.Object.defineProperty(navigator, 'plugins', {
+            enumerable: true,
+            configurable: true,
+            get: function () {
+              var browserplugins_triggerblock =
+                scope.document.createElement('div');
+              browserplugins_triggerblock.className =
+                'scriptsafe_oiigbmnaadbkfbmpbfijlflahbdbdgdf_browserplugins';
+              browserplugins_triggerblock.title = 'navigator.plugins';
+              document.documentElement.appendChild(browserplugins_triggerblock);
+              return '';
+            },
+          });
+        }
+        /* Canvas */
+        if (canvas != 'false') {
+          var fakecanvas = scope.document.createElement('canvas');
+          fakecanvas.className =
+            'scriptsafe_oiigbmnaadbkfbmpbfijlflahbdbdgdf_canvas';
+          if (canvas == 'random') {
+            var fakewidth = (fakecanvas.width =
+              Math.floor(Math.random() * 999) + 1);
+            var fakeheight = (fakecanvas.height =
+              Math.floor(Math.random() * 999) + 1);
+          }
+          var canvas_a = scope.HTMLCanvasElement;
+          var origToDataURL = canvas_a.prototype.toDataURL;
+          var origToBlob = canvas_a.prototype.toBlob;
+          canvas_a.prototype.toDataURL = function () {
+            fakecanvas.title = 'toDataURL';
+            document.documentElement.appendChild(fakecanvas);
+            if (canvas == 'block') return false;
+            else if (canvas == 'blank') {
+              fakecanvas.width = this.width;
+              fakecanvas.height = this.height;
+              return origToDataURL.apply(fakecanvas, arguments);
+            } else if (canvas == 'random') {
+              return origToDataURL.apply(fakecanvas, arguments);
+            }
+          };
+          canvas_a.prototype.toBlob = function () {
+            fakecanvas.title = 'toBlob';
+            document.documentElement.appendChild(fakecanvas);
+            if (canvas == 'block') return false;
+            else if (canvas == 'blank') {
+              fakecanvas.width = this.width;
+              fakecanvas.height = this.height;
+              return origToBlob.apply(fakecanvas, arguments);
+            } else if (canvas == 'random') {
+              return origToBlob.apply(fakecanvas, arguments);
+            }
+          };
+          var canvas_b = scope.CanvasRenderingContext2D;
+          var origGetImageData = canvas_b.prototype.getImageData;
+          canvas_b.prototype.getImageData = function () {
+            fakecanvas.title = 'getImageData';
+            document.documentElement.appendChild(fakecanvas);
+            if (canvas == 'block') return false;
+            else if (canvas == 'blank') {
+              fakecanvas.width = this.width;
+              fakecanvas.height = this.height;
+              return origGetImageData.apply(
+                fakecanvas.getContext('2d'),
+                arguments
+              );
+            } else if (canvas == 'random') {
+              return origGetImageData.apply(fakecanvas.getContext('2d'), [
+                Math.floor(Math.random() * fakewidth) + 1,
+                Math.floor(Math.random() * fakeheight) + 1,
+                Math.floor(Math.random() * fakewidth) + 1,
+                Math.floor(Math.random() * fakeheight) + 1,
+              ]);
+            }
+          };
+          var origGetLineDash = canvas_b.prototype.getLineDash;
+          canvas_b.prototype.getLineDash = function () {
+            fakecanvas.title = 'getLineDash';
+            document.documentElement.appendChild(fakecanvas);
+            if (canvas == 'block') return false;
+            else if (canvas == 'blank') {
+              fakecanvas.width = this.width;
+              fakecanvas.height = this.height;
+              return origGetLineDash.apply(fakecanvas.getContext('2d'), [0, 0]);
+            } else if (canvas == 'random') {
+              return origGetLineDash.apply(fakecanvas.getContext('2d'), [
+                Math.floor(Math.random() * fakewidth) + 1,
+                Math.floor(Math.random() * fakeheight) + 1,
+              ]);
+            }
+          };
+          var canvas_c = scope.WebGLRenderingContext;
+          var origReadPixels = canvas_c.prototype.readPixels;
+          canvas_c.prototype.readPixels = function () {
+            fakecanvas.title = 'readPixels';
+            document.documentElement.appendChild(fakecanvas);
+            if (canvas == 'block') return false;
+            else if (canvas == 'blank') {
+              fakecanvas.width = this.width;
+              fakecanvas.height = this.height;
+              return origReadPixels.apply(
+                fakecanvas.getContext('webgl'),
+                arguments
+              );
+            } else if (canvas == 'random') {
+              return origReadPixels.apply(fakecanvas.getContext('webgl'), [
+                Math.floor(Math.random() * fakewidth) + 1,
+                Math.floor(Math.random() * fakeheight) + 1,
+                Math.floor(Math.random() * fakewidth) + 1,
+                Math.floor(Math.random() * fakeheight) + 1,
+                arguments[4],
+                arguments[5],
+                arguments[6],
+              ]);
+            }
+          };
+        }
+        /* Audio Block */
+        if (audioblock == 'true') {
+          var audioblock_triggerblock = scope.document.createElement('div');
+          audioblock_triggerblock.className =
+            'scriptsafe_oiigbmnaadbkfbmpbfijlflahbdbdgdf_audio';
+          var audioblock_a = scope.AudioBuffer;
+          audioblock_a.prototype.copyFromChannel = function () {
+            audioblock_triggerblock.title = 'copyFromChannel';
+            document.documentElement.appendChild(audioblock_triggerblock);
+            return false;
+          };
+          audioblock_a.prototype.getChannelData = function () {
+            audioblock_triggerblock.title = 'getChannelData';
+            document.documentElement.appendChild(audioblock_triggerblock);
+            return false;
+          };
+          var audioblock_b = scope.AnalyserNode;
+          audioblock_b.prototype.getFloatFrequencyData = function () {
+            audioblock_triggerblock.title = 'getFloatFrequencyData';
+            document.documentElement.appendChild(audioblock_triggerblock);
+            return false;
+          };
+          audioblock_b.prototype.getByteFrequencyData = function () {
+            audioblock_triggerblock.title = 'getByteFrequencyData';
+            document.documentElement.appendChild(audioblock_triggerblock);
+            return false;
+          };
+          audioblock_b.prototype.getFloatTimeDomainData = function () {
+            audioblock_triggerblock.title = 'getFloatTimeDomainData';
+            document.documentElement.appendChild(audioblock_triggerblock);
+            return false;
+          };
+          audioblock_b.prototype.getByteTimeDomainData = function () {
+            audioblock_triggerblock.title = 'getByteTimeDomainData';
+            document.documentElement.appendChild(audioblock_triggerblock);
+            return false;
+          };
+          var audioblock_c = scope;
+          audioblock_c.AudioContext = function () {
+            audioblock_triggerblock.title = 'AudioContext';
+            document.documentElement.appendChild(audioblock_triggerblock);
+            return false;
+          };
+          audioblock_c.webkitAudioContext = function () {
+            audioblock_triggerblock.title = 'webkitAudioContext';
+            document.documentElement.appendChild(audioblock_triggerblock);
+            return false;
+          };
+        }
+        /* Canvas Font */
+        if (canvasfont == 'true') {
+          var canvasfont_triggerblock = scope.document.createElement('div');
+          canvasfont_triggerblock.className =
+            'scriptsafe_oiigbmnaadbkfbmpbfijlflahbdbdgdf_canvasfont';
+          var canvasfont_a = scope.CanvasRenderingContext2D;
+          canvasfont_a.prototype.measureText = function () {
+            canvasfont_triggerblock.title = 'measureText';
+            document.documentElement.appendChild(canvasfont_triggerblock);
+            return false;
+          };
+        }
+        /* Battery */
+        if (battery == 'true') {
+          var battery_triggerblock = scope.document.createElement('div');
+          battery_triggerblock.className =
+            'scriptsafe_oiigbmnaadbkfbmpbfijlflahbdbdgdf_battery';
+          var battery_a = scope.navigator;
+          battery_a.getBattery = function () {
+            battery_triggerblock.title = 'getBattery';
+            document.documentElement.appendChild(battery_triggerblock);
+            return void 0;
+          };
+        }
+        /* WebGL */
+        if (webgl == 'true') {
+          var webgl_triggerblock = scope.document.createElement('div');
+          webgl_triggerblock.className =
+            'scriptsafe_oiigbmnaadbkfbmpbfijlflahbdbdgdf_webgl';
+          var webgl_a = scope.HTMLCanvasElement;
+          var origGetContext = webgl_a.prototype.getContext;
+          webgl_a.prototype.getContext = function (arg) {
+            if (arg.match(/webgl/i)) {
+              webgl_triggerblock.title = 'getContext';
+              document.documentElement.appendChild(webgl_triggerblock);
+              return false;
+            }
+            return origGetContext.apply(this, arguments);
+          };
+        }
+        /* WebRTC */
+        if (webrtcdevice == 'true') {
+          var webrtc_triggerblock = scope.document.createElement('div');
+          webrtc_triggerblock.className =
+            'scriptsafe_oiigbmnaadbkfbmpbfijlflahbdbdgdf_webrtc';
+          var webrtc_a = scope.MediaStreamTrack;
+          webrtc_a.getSources = function () {
+            webrtc_triggerblock.title = 'getSources';
+            document.documentElement.appendChild(webrtc_triggerblock);
+            return false;
+          };
+          webrtc_a.getMediaDevices = function () {
+            webrtc_triggerblock.title = 'getMediaDevices';
+            document.documentElement.appendChild(webrtc_triggerblock);
+            return false;
+          };
+          var webrtc_b = scope.navigator.mediaDevices;
+          webrtc_b.enumerateDevices = function () {
+            webrtc_triggerblock.title = 'enumerateDevices';
+            document.documentElement.appendChild(webrtc_triggerblock);
+            return false;
+          };
+        }
+        /* Gamepad */
+        if (gamepad == 'true') {
+          var gamepad_triggerblock = scope.document.createElement('div');
+          gamepad_triggerblock.className =
+            'scriptsafe_oiigbmnaadbkfbmpbfijlflahbdbdgdf_gamepad';
+          var gamepad_a = scope.navigator;
+          gamepad_a.getGamepads = function () {
+            gamepad_triggerblock.title = 'getGamepads';
+            document.documentElement.appendChild(gamepad_triggerblock);
+            return false;
+          };
+        }
+        /* WebVR */
+        if (webvr == 'true') {
+          var webvr_triggerblock = scope.document.createElement('div');
+          webvr_triggerblock.className =
+            'scriptsafe_oiigbmnaadbkfbmpbfijlflahbdbdgdf_webvr';
+          var webvr_a = scope.navigator;
+          webvr_a.getVRDisplays = function () {
+            webvr_triggerblock.title = 'getVRDisplays';
+            document.documentElement.appendChild(webvr_triggerblock);
+            return false;
+          };
+        }
+        /* Bluetooth */
+        if (bluetooth == 'true') {
+          if (scope.navigator.bluetooth) {
+            var bluetooth_triggerblock = scope.document.createElement('div');
+            bluetooth_triggerblock.className =
+              'scriptsafe_oiigbmnaadbkfbmpbfijlflahbdbdgdf_bluetooth';
+            var bluetooth_a = scope.navigator.bluetooth;
+            bluetooth_a.requestDevice = function () {
+              bluetooth_triggerblock.title = 'requestDevice';
+              document.documentElement.appendChild(bluetooth_triggerblock);
+              return false;
+            };
+          }
+        }
+        /* Client Rectangles */
+        if (clientrects == 'true') {
+          var clientrects_triggerblock = scope.document.createElement('div');
+          clientrects_triggerblock.className =
+            'scriptsafe_oiigbmnaadbkfbmpbfijlflahbdbdgdf_clientrects';
+          Element.prototype.getClientRects = function () {
+            clientrects_triggerblock.title = 'getClientRects';
+            document.documentElement.appendChild(clientrects_triggerblock);
+            return [
+              { top: 0, bottom: 0, left: 0, right: 0, height: 0, width: 0 },
+            ];
+          };
+        }
+        /* Timezone */
+        if (timezone != 'false') {
+          var timezone_triggerblock = scope.document.createElement('div');
+          timezone_triggerblock.className =
+            'scriptsafe_oiigbmnaadbkfbmpbfijlflahbdbdgdf_timezone';
+          var timezone_a = scope.Date;
+          timezone_a.prototype.getTimezoneOffset = function () {
+            timezone_triggerblock.title = 'getTimezoneOffset';
+            document.documentElement.appendChild(timezone_triggerblock);
+            if (timezone == 'random')
+              return [
+                '720',
+                '660',
+                '600',
+                '570',
+                '540',
+                '480',
+                '420',
+                '360',
+                '300',
+                '240',
+                '210',
+                '180',
+                '120',
+                '60',
+                '0',
+                '-60',
+                '-120',
+                '-180',
+                '-210',
+                '-240',
+                '-270',
+                '-300',
+                '-330',
+                '-345',
+                '-360',
+                '-390',
+                '-420',
+                '-480',
+                '-510',
+                '-525',
+                '-540',
+                '-570',
+                '-600',
+                '-630',
+                '-660',
+                '-720',
+                '-765',
+                '-780',
+                '-840',
+              ][Math.floor(Math.random() * 39)];
+            return timezone;
+          };
+        }
+        /* Clipboard */
+        if (clipboard == 'true') {
+          var clipboard_triggerblock = scope.document.createElement('div');
+          clipboard_triggerblock.className =
+            'scriptsafe_oiigbmnaadbkfbmpbfijlflahbdbdgdf_clipboard';
+          var clipboard_a = document;
+          var origExecCommand = clipboard_a.execCommand;
+          clipboard_a.execCommand = function () {
+            clipboard_triggerblock.title = 'execCommand';
+            document.documentElement.appendChild(clipboard_triggerblock);
+            if (arguments[0] == 'cut' || arguments[0] == 'copy') return false;
+            return origExecCommand.apply(this, arguments);
+          };
+        }
+      }
+      processFunctions(window);
+      var iwin = HTMLIFrameElement.prototype.__lookupGetter__('contentWindow'),
+        idoc = HTMLIFrameElement.prototype.__lookupGetter__('contentDocument');
+      Object.defineProperties(HTMLIFrameElement.prototype, {
+        contentWindow: {
+          get: function () {
+            var frame = iwin.apply(this);
+            if (
+              this.src &&
+              this.src.indexOf('//') != -1 &&
+              location.host != this.src.split('/')[2]
+            )
+              return frame;
+            try {
+              frame.HTMLCanvasElement;
+            } catch (err) {
+              /* do nothing*/
+            }
+            processFunctions(frame);
+            return frame;
+          },
+        },
+        contentDocument: {
+          get: function () {
+            if (
+              this.src &&
+              this.src.indexOf('//') != -1 &&
+              location.host != this.src.split('/')[2]
+            )
+              return idoc.apply(this);
+            var frame = iwin.apply(this);
+            try {
+              frame.HTMLCanvasElement;
+            } catch (err) {
+              /* do nothing*/
+            }
+            processFunctions(frame);
+            return idoc.apply(this);
+          },
+        },
+      });
+    })(
+      'block',
+      'true',
+      'true',
+      'true',
+      'true',
+      'true',
+      'true',
+      'true',
+      'true',
+      'false',
+      'true',
+      'true',
+      'true'
+    );
+  </script>
+</html>

packages/common/native/fixtures/sample.html.0.md

@@ -0,0 +1,6 @@
+Example Domain
+
+        This domain is for use in illustrative examples in documents. You may
+        use this domain in literature without prior coordination or asking for
+        permission.
+      More information...

packages/common/native/fixtures/sample.pdf.0.md

@@ -0,0 +1,40 @@
+Sample PDF
+This is a simple PDF file. Fun fun fun.
+
+Lorem ipsum dolor  sit amet,  consectetuer  adipiscing elit.  Phasellus  facilisis odio  sed mi. 
+Curabitur suscipit. Nullam vel nisi. Etiam semper ipsum ut lectus. Proin  aliquam, erat eget 
+pharetra  commodo,  eros  mi  condimentum   quam,  sed  commodo  justo  quam  ut  velit. 
+Integer  a  erat.  Cras  laoreet  ligula  cursus  enim.  Aenean  scelerisque  velit  et  tellus. 
+Vestibulum  dictum aliquet sem.  Nulla  facilisi.  Vestibulum  accumsan  ante  vitae  elit.  Nulla 
+erat  dolor,  blandit  in,  rutrum  quis,  semper  pulvinar,  enim.  Nullam   varius  congue  risus. 
+Vivamus  sollicitudin,  metus  ut  interdum   eleifend,  nisi  tellus  pellentesque  elit,  tristique 
+accumsan  eros  quam   et  risus.  Suspendisse  libero  odio,  mattis  sit  amet,  aliquet  eget, 
+hendrerit vel,  nulla. Sed vitae  augue. Aliquam erat volutpat. Aliquam feugiat vulputate nisl. 
+Suspendisse quis nulla pretium ante pretium mollis. Proin  velit ligula, sagittis at, egestas a, 
+pulvinar quis, nisl.
+
+Pellentesque  sit  amet  lectus.  Praesent  pulvinar,  nunc  quis  iaculis  sagittis,  justo  quam 
+lobortis  tortor,  sed  vestibulum dui  metus  venenatis  est.  Nunc  cursus ligula.  Nulla facilisi. 
+Phasellus ullamcorper consectetuer ante. Duis tincidunt, urna id condimentum luctus, nibh 
+ante  vulputate  sapien,  id  sagittis  massa  orci  ut  enim.  Pellentesque  vestibulum convallis 
+sem.  Nulla consequat  quam ut  nisl.  Nullam est.  Curabitur  tincidunt  dapibus  lorem.  Proin 
+velit  turpis,  scelerisque  sit  amet,  iaculis  nec,  rhoncus  ac,  ipsum.  Phasellus  lorem  arcu, 
+feugiat  eu,  gravida  eu,  consequat  molestie,  ipsum.  Nullam  vel  est  ut  ipsum  volutpat 
+feugiat. Aenean pellentesque.
+
+In  mauris.  Pellentesque  dui  nisi,  iaculis eu,  rhoncus in,  venenatis ac,  ante.  Ut odio justo, 
+scelerisque vel,  facilisis  non,  commodo  a,  pede.  Cras nec  massa sit amet tortor volutpat 
+varius.  Donec  lacinia, neque  a luctus aliquet, pede  massa imperdiet ante,  at varius lorem 
+pede  sed  sapien.  Fusce  erat nibh,  aliquet in,  eleifend  eget,  commodo  eget,  erat.  Fusce 
+consectetuer.  Cras risus tortor,  porttitor  nec,  tristique  sed,  convallis  semper,  eros.  Fusce 
+vulputate  ipsum a mauris.  Phasellus mollis.  Curabitur  sed  urna.  Aliquam nec  sapien  non 
+nibh  pulvinar  convallis.  Vivamus  facilisis  augue  quis  quam.  Proin  cursus  aliquet  metus. 
+Suspendisse  lacinia.  Nulla  at tellus ac turpis eleifend scelerisque.  Maecenas a pede vitae 
+enim commodo interdum. Donec odio. Sed sollicitudin dui vitae justo.
+
+Morbi  elit nunc, facilisis a, mollis a, molestie at,  lectus.  Suspendisse eget mauris eu  tellus 
+molestie  cursus.  Duis  ut  magna  at  justo  dignissim  condimentum.  Cum   sociis  natoque 
+penatibus et magnis dis parturient montes,  nascetur ridiculus mus.  Vivamus varius. Ut sit 
+amet  diam suscipit mauris  ornare  aliquam.  Sed  varius.  Duis arcu.  Etiam tristique  massa 
+eget dui.  Phasellus congue. Aenean  est erat, tincidunt eget, venenatis quis,  commodo at, 
+quam.

packages/common/native/fixtures/sample.pdf.1.md

@@ -0,0 +1,9 @@
+Pellentesque  sit  amet  lectus.  Praesent  pulvinar,  nunc  quis  iaculis  sagittis,  justo  quam 
+lobortis  tortor,  sed  vestibulum dui  metus  venenatis  est.  Nunc  cursus ligula.  Nulla facilisi. 
+Phasellus ullamcorper consectetuer ante. Duis tincidunt, urna id condimentum luctus, nibh 
+ante  vulputate  sapien,  id  sagittis  massa  orci  ut  enim.  Pellentesque  vestibulum convallis 
+sem.  Nulla consequat  quam ut  nisl.  Nullam est.  Curabitur  tincidunt  dapibus  lorem.  Proin 
+velit  turpis,  scelerisque  sit  amet,  iaculis  nec,  rhoncus  ac,  ipsum.  Phasellus  lorem  arcu, 
+feugiat  eu,  gravida  eu,  consequat  molestie,  ipsum.  Nullam  vel  est  ut  ipsum  volutpat 
+feugiat. Aenean pellentesque.
+

packages/common/native/fixtures/sample.pdf.2.md

@@ -0,0 +1,16 @@
+In  mauris.  Pellentesque  dui  nisi,  iaculis eu,  rhoncus in,  venenatis ac,  ante.  Ut odio justo, 
+scelerisque vel,  facilisis  non,  commodo  a,  pede.  Cras nec  massa sit amet tortor volutpat 
+varius.  Donec  lacinia, neque  a luctus aliquet, pede  massa imperdiet ante,  at varius lorem 
+pede  sed  sapien.  Fusce  erat nibh,  aliquet in,  eleifend  eget,  commodo  eget,  erat.  Fusce 
+consectetuer.  Cras risus tortor,  porttitor  nec,  tristique  sed,  convallis  semper,  eros.  Fusce 
+vulputate  ipsum a mauris.  Phasellus mollis.  Curabitur  sed  urna.  Aliquam nec  sapien  non 
+nibh  pulvinar  convallis.  Vivamus  facilisis  augue  quis  quam.  Proin  cursus  aliquet  metus. 
+Suspendisse  lacinia.  Nulla  at tellus ac turpis eleifend scelerisque.  Maecenas a pede vitae 
+enim commodo interdum. Donec odio. Sed sollicitudin dui vitae justo.
+
+Morbi  elit nunc, facilisis a, mollis a, molestie at,  lectus.  Suspendisse eget mauris eu  tellus 
+molestie  cursus.  Duis  ut  magna  at  justo  dignissim  condimentum.  Cum   sociis  natoque 
+penatibus et magnis dis parturient montes,  nascetur ridiculus mus.  Vivamus varius. Ut sit 
+amet  diam suscipit mauris  ornare  aliquam.  Sed  varius.  Duis arcu.  Etiam tristique  massa 
+eget dui.  Phasellus congue. Aenean  est erat, tincidunt eget, venenatis quis,  commodo at, 
+quam.

packages/common/native/fixtures/sample.rs

@@ -0,0 +1,10 @@
+fn factorial(n: u64) -> u64 {
+  if n == 0 {
+    return 1;
+  }
+  n * factorial(n - 1)
+}
+
+fn main() {
+  println!("Hello, world!");
+}

packages/common/native/fixtures/sample.rs.0.md

@@ -0,0 +1,6 @@
+fn factorial(n: u64) -> u64 {
+  if n == 0 {
+    return 1;
+  }
+  n * factorial(n - 1)
+}

packages/common/native/fixtures/sample.rs.1.md

@@ -0,0 +1,3 @@
+fn main() {
+  println!("Hello, world!");
+}

packages/common/native/fixtures/sample.ts

@@ -0,0 +1,3 @@
+export default function sample() {
+  return 'sample';
+}

packages/common/native/fixtures/sample.ts.0.md

@@ -0,0 +1,3 @@
+export default function sample() {
+  return 'sample';
+}

packages/common/native/src/hashcash.rs

@@ -0,0 +1,175 @@
+use std::convert::TryFrom;
+
+use chrono::{DateTime, Duration, NaiveDateTime, Utc};
+use rand::{
+  distr::{Alphanumeric, Distribution},
+  rng,
+};
+use sha3::{Digest, Sha3_256};
+
+const SALT_LENGTH: usize = 16;
+
+#[derive(Debug)]
+pub struct Stamp {
+  version: String,
+  claim: u32,
+  ts: String,
+  resource: String,
+  ext: String,
+  rand: String,
+  counter: String,
+}
+
+impl Stamp {
+  fn check_expiration(&self) -> bool {
+    NaiveDateTime::parse_from_str(&self.ts, "%Y%m%d%H%M%S")
+      .ok()
+      .map(|ts| DateTime::<Utc>::from_naive_utc_and_offset(ts, Utc))
+      .and_then(|utc| {
+        utc
+          .checked_add_signed(Duration::minutes(5))
+          .map(|utc| Utc::now() <= utc)
+      })
+      .unwrap_or(false)
+  }
+
+  pub fn check<S: AsRef<str>>(&self, bits: u32, resource: S) -> bool {
+    if self.version == "1" && bits <= self.claim && self.check_expiration() && self.resource == resource.as_ref() {
+      let hex_digits = ((self.claim as f32) / 4.).floor() as usize;
+
+      // check challenge
+      let mut hasher = Sha3_256::new();
+      hasher.update(self.format().as_bytes());
+      let result = hex::encode(hasher.finalize());
+      result[..hex_digits] == String::from_utf8(vec![b'0'; hex_digits]).unwrap()
+    } else {
+      false
+    }
+  }
+
+  pub fn format(&self) -> String {
+    format!(
+      "{}:{}:{}:{}:{}:{}:{}",
+      self.version, self.claim, self.ts, self.resource, self.ext, self.rand, self.counter
+    )
+  }
+
+  /// Mint a new hashcash stamp.
+  pub fn mint(resource: String, bits: Option<u32>) -> Self {
+    let version = "1";
+    let now = Utc::now();
+    let ts = now.format("%Y%m%d%H%M%S");
+    let bits = bits.unwrap_or(20);
+    let rand = String::from_iter(Alphanumeric.sample_iter(rng()).take(SALT_LENGTH).map(char::from));
+    let challenge = format!("{}:{}:{}:{}:{}:{}", version, bits, ts, resource, "", rand);
+
+    Stamp {
+      version: version.to_string(),
+      claim: bits,
+      ts: ts.to_string(),
+      resource,
+      ext: "".to_string(),
+      rand,
+      counter: {
+        let mut hasher = Sha3_256::new();
+        let mut counter = 0;
+        let hex_digits = ((bits as f32) / 4.).ceil() as usize;
+        let zeros = String::from_utf8(vec![b'0'; hex_digits]).unwrap();
+        loop {
+          hasher.update(format!("{challenge}:{counter:x}").as_bytes());
+          let result = hex::encode(hasher.finalize_reset());
+          if result[..hex_digits] == zeros {
+            break format!("{counter:x}");
+          };
+          counter += 1
+        }
+      },
+    }
+  }
+}
+
+impl TryFrom<&str> for Stamp {
+  type Error = String;
+
+  fn try_from(value: &str) -> Result<Self, Self::Error> {
+    let stamp_vec = value.split(':').collect::<Vec<&str>>();
+    if stamp_vec.len() != 7 || stamp_vec.iter().enumerate().any(|(i, s)| i != 4 && s.is_empty()) {
+      return Err(format!("Malformed stamp, expected 6 parts, got {}", stamp_vec.len()));
+    }
+    Ok(Stamp {
+      version: stamp_vec[0].to_string(),
+      claim: stamp_vec[1].parse().map_err(|_| "Malformed stamp".to_string())?,
+      ts: stamp_vec[2].to_string(),
+      resource: stamp_vec[3].to_string(),
+      ext: stamp_vec[4].to_string(),
+      rand: stamp_vec[5].to_string(),
+      counter: stamp_vec[6].to_string(),
+    })
+  }
+}
+
+#[cfg(test)]
+mod tests {
+  use rand::{Rng, distr::Alphanumeric};
+  use rayon::prelude::*;
+
+  use super::Stamp;
+
+  #[test]
+  fn test_mint() {
+    {
+      let response = Stamp::mint("test".into(), Some(20)).format();
+      assert!(
+        Stamp::try_from(response.as_str()).unwrap().check(20, "test"),
+        "should pass"
+      );
+    }
+
+    {
+      let response = Stamp::mint("test".into(), Some(19)).format();
+      assert!(
+        !Stamp::try_from(response.as_str()).unwrap().check(20, "test"),
+        "should fail with lower bits"
+      );
+    }
+    {
+      let response = Stamp::mint("test".into(), Some(20)).format();
+      assert!(
+        !Stamp::try_from(response.as_str()).unwrap().check(20, "test2"),
+        "should fail with different resource"
+      );
+    }
+  }
+
+  #[test]
+  fn test_check_expiration() {
+    let response = Stamp::mint("test".into(), Some(20));
+    assert!(response.check_expiration());
+  }
+
+  #[test]
+  fn test_format() {
+    let response = Stamp::mint("test".into(), Some(20));
+    assert_eq!(
+      response.format(),
+      format!("1:20:{}:test::{}:{}", response.ts, response.rand, response.counter)
+    );
+  }
+
+  #[test]
+  fn test_fuzz() {
+    (0..1000).into_par_iter().for_each(|_| {
+      let bit = rand::random::<u32>() % 20 + 1;
+      let resource = rand::rng()
+        .sample_iter(&Alphanumeric)
+        .take(7)
+        .map(char::from)
+        .collect::<String>();
+      let response = Stamp::mint(resource.clone(), Some(bit)).format();
+      assert!(
+        Stamp::try_from(response.as_str()).unwrap().check(bit, resource),
+        "should pass"
+      );
+    });
+  }
+}

packages/common/native/src/lib.rs

@@ -0,0 +1,4 @@
+#[cfg(feature = "hashcash")]
+pub mod hashcash;
+#[cfg(feature = "napi")]
+pub mod napi_utils;

packages/common/native/src/napi_utils.rs

@@ -0,0 +1,22 @@
+use std::fmt::{Debug, Display};
+
+use napi::{Error, Result, Status};
+
+pub fn to_napi_error<E: Display + Debug>(err: E, status: Status) -> Error {
+  Error::new(status, err.to_string())
+}
+
+pub fn map_napi_err<T, E: Display + Debug>(value: std::result::Result<T, E>, status: Status) -> Result<T> {
+  value.map_err(|err| to_napi_error(err, status))
+}
+
+#[cfg(test)]
+mod tests {
+  use super::*;
+
+  #[test]
+  fn map_napi_err_keeps_message() {
+    let err = map_napi_err::<(), _>(Err("boom"), Status::GenericFailure).unwrap_err();
+    assert!(err.to_string().contains("boom"));
+  }
+}