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Simon Bruder 2024-07-08 19:35:22 +02:00
parent 21c99a1677
commit af2ce1e9b1
Signed by: simon
GPG key ID: 347FF8699CDA0776
8 changed files with 855 additions and 18 deletions
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@ -88,7 +88,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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version = "1.0.12"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "3354b9ac3fae1ff6755cb6db53683adb661634f67557942dea4facebec0fee4b"
[[package]]
name = "unicode-joining-type"
version = "0.7.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "22f8cb47ccb8bc750808755af3071da4a10dcd147b68fc874b7ae4b12543f6f5"
[[package]]
name = "unicode-normalization"
version = "0.1.23"
@ -1904,7 +2268,7 @@ dependencies = [
"once_cell",
"proc-macro2",
"quote",
"syn",
"syn 2.0.68",
"wasm-bindgen-shared",
]
@ -1926,7 +2290,7 @@ checksum = "e94f17b526d0a461a191c78ea52bbce64071ed5c04c9ffe424dcb38f74171bb7"
dependencies = [
"proc-macro2",
"quote",
"syn",
"syn 2.0.68",
"wasm-bindgen-backend",
"wasm-bindgen-shared",
]
@ -1947,6 +2311,12 @@ dependencies = [
"wasm-bindgen",
]
[[package]]
name = "weezl"
version = "0.1.8"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "53a85b86a771b1c87058196170769dd264f66c0782acf1ae6cc51bfd64b39082"
[[package]]
name = "whoami"
version = "1.5.1"
@ -1958,6 +2328,28 @@ dependencies = [
"web-sys",
]
[[package]]
name = "winapi"
version = "0.3.9"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
dependencies = [
"winapi-i686-pc-windows-gnu",
"winapi-x86_64-pc-windows-gnu",
]
[[package]]
name = "winapi-i686-pc-windows-gnu"
version = "0.4.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
[[package]]
name = "winapi-x86_64-pc-windows-gnu"
version = "0.4.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
[[package]]
name = "windows-sys"
version = "0.48.0"
@ -2106,6 +2498,12 @@ dependencies = [
"memchr",
]
[[package]]
name = "xmlparser"
version = "0.13.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "66fee0b777b0f5ac1c69bb06d361268faafa61cd4682ae064a171c16c433e9e4"
[[package]]
name = "zerocopy"
version = "0.7.34"
@ -2123,7 +2521,7 @@ checksum = "15e934569e47891f7d9411f1a451d947a60e000ab3bd24fbb970f000387d1b3b"
dependencies = [
"proc-macro2",
"quote",
"syn",
"syn 2.0.68",
]
[[package]]

6
Cargo.toml
View file

@ -14,11 +14,17 @@ actix-files = "0.6.6"
actix-web = "4.8.0"
askama = { version = "0.12.1", features = ["with-actix-web"] }
askama_actix = "0.14.0"
barcoders = { version = "2.0.0", default-features = false, features = ["std"] }
datamatrix = "0.3.1"
diesel = { version = "2.2.1", features = ["uuid"] }
diesel-async = { git = "https://github.com/weiznich/diesel_async.git", version = "0.4.1", features = ["postgres", "deadpool", "async-connection-wrapper"] }
diesel-derive-enum = { version = "2.1.0", features = ["postgres"] }
diesel_migrations = { version = "2.2.0", features = ["postgres"] }
env_logger = "0.11.3"
log = "0.4.21"
mime = "0.3.17"
printpdf = "0.7.0"
rust-fontconfig = "0.1.7"
serde = { version = "1.0.203", features = ["serde_derive"] }
thiserror = "1.0.61"
uuid = { version = "1.9.0", features = ["serde", "v4"] }

55
src/api/v1/label.rs Normal file
View file

@ -0,0 +1,55 @@
// SPDX-FileCopyrightText: 2024 Simon Bruder <simon@sbruder.de>
//
// SPDX-License-Identifier: AGPL-3.0-or-later
use actix_web::http::header::{ContentDisposition, ContentType, DispositionParam, DispositionType};
use actix_web::{error, get, web, HttpResponse, Responder};
use serde::Deserialize;
use uuid::Uuid;
use crate::label::{Label, LabelPage, LabelPreset};
pub fn config(cfg: &mut web::ServiceConfig) {
cfg.service(items);
}
#[derive(Debug, Deserialize)]
struct QueryParams {
// FIXME: serde_urlencoded does not support sequences
ids: String,
preset: LabelPreset,
}
#[get("/label/items")]
async fn items(params: web::Query<QueryParams>) -> actix_web::Result<impl Responder> {
let ids = params
.ids
.split(',')
.skip_while(|s| s.is_empty()) // to make the empty string parse as an empty iterator
.map(Uuid::try_parse)
.collect::<Result<Vec<Uuid>, uuid::Error>>()
.map_err(error::ErrorInternalServerError)?;
let label_config = params.preset.clone().into();
let label = Label {
pages: ids
.into_iter()
.map(|id| LabelPage {
id: Some(id),
short_id: None,
})
.collect(),
config: label_config,
};
Ok(HttpResponse::Ok()
.insert_header(ContentType(mime::APPLICATION_PDF))
.insert_header(ContentDisposition {
disposition: DispositionType::Inline,
parameters: vec![DispositionParam::Filename(
"li7y-item-labels.pdf".to_string(),
)],
})
.body(label.generate().map_err(error::ErrorInternalServerError)?))
}

5
src/api/v1/mod.rs
View file

@ -4,9 +4,12 @@
mod item;
mod item_class;
mod label;
use actix_web::web;
pub fn config(cfg: &mut web::ServiceConfig) {
cfg.configure(item::config).configure(item_class::config);
cfg.configure(item::config)
.configure(item_class::config)
.configure(label::config);
}

60
src/label/barcode.rs Normal file
View file

@ -0,0 +1,60 @@
// SPDX-FileCopyrightText: 2024 Simon Bruder <simon@sbruder.de>
//
// SPDX-License-Identifier: AGPL-3.0-or-later
use barcoders::sym::code128::Code128;
use datamatrix::{DataMatrix, SymbolSize};
use printpdf::{ColorBits, ColorSpace, Image, ImageXObject, Px};
use uuid::Uuid;
fn create_image(width: usize, height: usize, data: Vec<bool>) -> Image {
Image::from(ImageXObject {
width: Px(width),
height: Px(height),
color_space: ColorSpace::Greyscale,
bits_per_component: ColorBits::Bit8, // TODO: why does Bit1 not work?
image_data: data
.iter()
.map(|x| match x {
true => 0,
false => u8::MAX,
})
.collect(),
interpolate: false,
image_filter: None,
smask: None,
clipping_bbox: None,
})
}
pub fn encode_data_matrix(id: Uuid) -> Result<Image, datamatrix::data::DataEncodingError> {
let code = DataMatrix::encode(
&id.to_string().bytes().collect::<Vec<u8>>(),
SymbolSize::Square22,
)?;
let bitmap = code.bitmap();
assert_eq!(bitmap.width(), 22);
assert_eq!(bitmap.height(), 22);
let mut buf = vec![false; bitmap.width() * bitmap.height()];
for (x, y) in bitmap.pixels() {
buf[x + y * bitmap.width()] = true;
}
Ok(create_image(22, 22, buf))
}
pub fn encode_code128(text: String) -> Result<Image, barcoders::error::Error> {
let mut text = text;
// barcoders uses special characters for setting the Code128 type (A, B, C)
text.insert(0, 'À');
let buf: Vec<bool> = Code128::new(text)?
.encode()
.iter()
.map(|x| !matches!(x, 0))
.collect();
Ok(create_image(buf.len(), 1, buf))
}

239
src/label/mod.rs Normal file
View file

@ -0,0 +1,239 @@
// SPDX-FileCopyrightText: 2024 Simon Bruder <simon@sbruder.de>
//
// SPDX-License-Identifier: AGPL-3.0-or-later
mod barcode;
mod preset;
use std::fs::File;
use std::sync::OnceLock;
use pdf::{IndirectFontRef, PdfLayerReference};
use printpdf as pdf;
use printpdf::{ImageTransform, Mm, PdfDocument, PdfDocumentReference, Pt, Px};
use rust_fontconfig::{FcFontCache, FcPattern};
use thiserror::Error;
use uuid::Uuid;
use barcode::{encode_code128, encode_data_matrix};
pub use preset::LabelPreset;
#[derive(Error, Debug)]
pub enum Error {
#[error("could not encode data matrix")]
DataMatrixEncoding(datamatrix::data::DataEncodingError),
#[error("could not encode barcode: {0}]")]
Barcoders(#[from] barcoders::error::Error),
#[error("IO error: {0}")]
Io(#[from] std::io::Error),
#[error("PDF error: {0}")]
PrintPdf(#[from] printpdf::Error),
#[error("data is incomplete ({0} not given in data, but required in config)")]
DataIncomplete(String),
#[error("can’t create labels without any pages")]
NoPages,
}
// The datamatrix crate does not implement Into<std::error::Error> for its error type
impl From<datamatrix::data::DataEncodingError> for Error {
fn from(value: datamatrix::data::DataEncodingError) -> Self {
Self::DataMatrixEncoding(value)
}
}
type Result<T> = std::result::Result<T, Error>;
// this is implemented based on lazy_static’s recommendation
fn fc_cache() -> &'static FcFontCache {
static FC_CACHE: OnceLock<FcFontCache> = OnceLock::new();
FC_CACHE.get_or_init(FcFontCache::build)
}
fn get_font_path(name: &str) -> String {
fc_cache()
.query(&FcPattern {
name: Some(name.to_string()),
..Default::default()
})
.expect("Could not find font")
.path
.clone()
}
fn mm_to_scale_factor(mm: Mm, size: Px) -> f32 {
mm / Mm::from(Pt(0.24 * (size.0 as f32)))
}
#[derive(Debug)]
pub struct LabelConfig {
width: Mm,
height: Mm,
data_matrix: Option<DataMatrixConfig>,
code128: Option<Code128Config>,
id_text: Option<IdTextConfig>,
short_id_text: Option<IdTextConfig>,
}
#[derive(Debug)]
pub struct DataMatrixConfig {
scale: Mm,
position: (Mm, Mm),
}
impl DataMatrixConfig {
fn draw(&self, layer: &PdfLayerReference, id: Option<Uuid>) -> Result<()> {
let image = encode_data_matrix(id.ok_or(Error::DataIncomplete("UUID".to_string()))?)?;
let size = image.image.width;
image.add_to_layer(
layer.clone(),
ImageTransform {
translate_x: Some(self.position.0),
translate_y: Some(self.position.1),
scale_x: Some(mm_to_scale_factor(self.scale, size)),
scale_y: Some(mm_to_scale_factor(self.scale, size)),
..Default::default()
},
);
Ok(())
}
}
#[derive(Debug)]
pub struct Code128Config {
scale: (Mm, Mm),
position: (Mm, Mm),
}
impl Code128Config {
fn draw<S: Into<String>>(&self, layer: &PdfLayerReference, id: Option<S>) -> Result<()> {
let image = encode_code128(
id.ok_or(Error::DataIncomplete("short ID".to_string()))?
.into(),
)?;
let width = image.image.width;
image.add_to_layer(
layer.clone(),
ImageTransform {
translate_x: Some(self.position.0),
translate_y: Some(self.position.1),
scale_x: Some(mm_to_scale_factor(self.scale.0, width)),
scale_y: Some(mm_to_scale_factor(self.scale.1, Px(1))),
..Default::default()
},
);
Ok(())
}
}
#[derive(Debug)]
pub struct IdTextConfig {
font_size: f32,
position: (Mm, Mm),
}
impl IdTextConfig {
fn draw<S: Into<String>>(
&self,
layer: &PdfLayerReference,
font: &IndirectFontRef,
text: Option<S>,
) -> Result<()> {
layer.use_text(
text.ok_or(Error::DataIncomplete("ID text".to_string()))?,
self.font_size,
self.position.0,
self.position.1,
font,
);
Ok(())
}
}
#[derive(Debug)]
pub struct LabelPage {
pub id: Option<Uuid>,
pub short_id: Option<String>,
}
impl LabelPage {
fn draw(
&self,
config: &LabelConfig,
layer: &PdfLayerReference,
font: &IndirectFontRef,
) -> Result<()> {
if let Some(cfg) = &config.data_matrix {
cfg.draw(layer, self.id)?;
}
if let Some(cfg) = &config.code128 {
cfg.draw(layer, self.short_id.as_ref())?;
}
if let Some(cfg) = &config.id_text {
cfg.draw(layer, font, self.id)?;
}
if let Some(cfg) = &config.short_id_text {
cfg.draw(layer, font, self.short_id.as_ref())?;
}
Ok(())
}
}
#[derive(Debug)]
pub struct Label {
pub pages: Vec<LabelPage>,
pub config: LabelConfig,
}
impl Label {
pub fn generate(&self) -> Result<Vec<u8>> {
let mut doc: Option<PdfDocumentReference> = None;
let mut font: Option<IndirectFontRef> = None;
for label in &self.pages {
let page;
let layer;
let name: String = label
.id
.map(String::from)
.or(label.short_id.clone())
.unwrap_or("empty".into());
if let Some(ref doc) = &doc {
(page, layer) = doc.add_page(self.config.width, self.config.height, name);
} else {
let (new_doc, page1, layer1) =
PdfDocument::new("li7y labels", self.config.width, self.config.height, name);
// TODO: do not hardcode font
// counter-argument: the presets rely on its spacing
// but at least it should be somehow included (or at least documented)
font =
Some(new_doc.add_external_font(File::open(get_font_path(
"IosevkaSbruder Nerd Font",
))?)?);
doc = Some(new_doc);
page = page1;
layer = layer1;
}
let doc = doc.as_ref().unwrap();
let font = font.as_ref().unwrap();
let layer_ref = doc.get_page(page).get_layer(layer);
label.draw(&self.config, &layer_ref, font)?
}
Ok(doc.ok_or(Error::NoPages)?.save_to_bytes()?)
}
}

75
src/label/preset.rs Normal file
View file

@ -0,0 +1,75 @@
// SPDX-FileCopyrightText: 2024 Simon Bruder <simon@sbruder.de>
//
// SPDX-License-Identifier: AGPL-3.0-or-later
use printpdf::Mm;
use serde::Deserialize;
use super::{Code128Config, DataMatrixConfig, IdTextConfig, LabelConfig};
#[derive(Clone, Debug, Deserialize)]
#[serde(rename_all = "kebab-case")]
pub enum LabelPreset {
SeikoSlpMrlDataMatrix,
SeikoSlpMrlCode128,
SeikoSlpMrl,
}
#[allow(clippy::from_over_into)]
impl Into<LabelConfig> for LabelPreset {
fn into(self) -> LabelConfig {
match self {
Self::SeikoSlpMrlDataMatrix => LabelConfig {
width: Mm(44.45),
height: Mm(24.13),
data_matrix: Some(DataMatrixConfig {
scale: Mm(20.0),
position: (Mm(0.0), Mm(0.0)),
}),
code128: None,
id_text: Some(IdTextConfig {
font_size: 7.0,
position: (Mm(0.0), Mm(22.0)),
}),
short_id_text: None,
},
Self::SeikoSlpMrlCode128 => LabelConfig {
width: Mm(44.45),
height: Mm(24.13),
data_matrix: None,
code128: Some(Code128Config {
scale: (Mm(44.45), Mm(19.0)),
position: (Mm(0.0), Mm(2.5)),
}),
id_text: Some(IdTextConfig {
font_size: 7.0,
position: (Mm(0.0), Mm(22.0)),
}),
short_id_text: Some(IdTextConfig {
font_size: 7.0,
position: (Mm(0.0), Mm(0.0)),
}),
},
Self::SeikoSlpMrl => LabelConfig {
width: Mm(44.45),
height: Mm(24.13),
data_matrix: Some(DataMatrixConfig {
scale: Mm(16.0),
position: (Mm(0.0), Mm(4.0)),
}),
code128: Some(Code128Config {
scale: (Mm(27.45), Mm(16.0)),
position: (Mm(17.0), Mm(4.0)),
}),
id_text: Some(IdTextConfig {
font_size: 7.0,
position: (Mm(0.0), Mm(22.0)),
}),
short_id_text: Some(IdTextConfig {
font_size: 7.0,
position: (Mm(17.0), Mm(0.0)),
}),
},
}
}
}

1
src/lib.rs
View file

@ -4,6 +4,7 @@
pub mod api;
pub mod frontend;
pub mod label;
pub mod manage;
pub mod models;
pub mod schema;