Fix bug in media upload, add optional detectoin of mime-/file-type

Cargo.toml

@@ -26,6 +26,10 @@ url = "1"
 hyper-old-types = "0.11.0"
 futures-util = "0.3.25"
 
+[dependencies.magic]
+version = "0.13.0"
+optional = true
+
 [dependencies.uuid]
 version = "1.2.2"
 features = ["v4"]
@@ -80,8 +84,9 @@ html2text = "0.4.4"
 version = "0.13"
 
 [features]
-all = ["toml", "json", "env"]
+all = ["toml", "json", "env", "magic"]
-default = ["reqwest/default-tls"]
+# default = ["reqwest/default-tls"]
+default = ["reqwest/default-tls", "magic"]
 env = ["envy"]
 json = []
 rustls-tls = ["reqwest/rustls-tls"]

examples/upload_photo.rs

@@ -30,8 +30,14 @@ async fn main() -> Result<()> {
     femme::with_level(femme::LevelFilter::Trace);
     let mastodon = register::get_mastodon_data().await?;
     let input = register::read_line("Enter the path to the photo you'd like to post: ")?;
+    let description = register::read_line("describe the media?  ")?;
+    let description = if description.trim().is_empty() {
+        None
+    } else {
+        Some(description)
+    };
 
-    let media = mastodon.media(input).await?;
+    let media = mastodon.media(input, description).await?;
     let status = StatusBuilder::new()
         .status("Mastodon-async photo upload example/demo (automated post)")
         .media_ids([media.id])

src/errors.rs

@@ -3,6 +3,8 @@ use std::{error, fmt, io::Error as IoError, num::TryFromIntError};
 #[cfg(feature = "env")]
 use envy::Error as EnvyError;
 use hyper_old_types::Error as HeaderParseError;
+#[cfg(feature = "magic")]
+use magic::MagicError;
 use reqwest::{header::ToStrError as HeaderStrError, Error as HttpError, StatusCode};
 use serde::Deserialize;
 use serde_json::Error as SerdeError;
@@ -68,6 +70,9 @@ pub enum Error {
     /// At the time of writing, this can only be triggered when a file is
     /// larger than the system's usize allows.
     IntConversion(TryFromIntError),
+    #[cfg(feature = "magic")]
+    /// An error received from the magic crate
+    Magic(MagicError),
     /// Other errors
     Other(String),
 }
@@ -80,30 +85,33 @@ impl fmt::Display for Error {
 
 impl error::Error for Error {
     fn source(&self) -> Option<&(dyn error::Error + 'static)> {
+        use Error::*;
         match *self {
-            Error::Serde(ref e) => Some(e),
+            Serde(ref e) => Some(e),
-            Error::UrlEncoded(ref e) => Some(e),
+            UrlEncoded(ref e) => Some(e),
-            Error::Http(ref e) => Some(e),
+            Http(ref e) => Some(e),
-            Error::Io(ref e) => Some(e),
+            Io(ref e) => Some(e),
-            Error::Url(ref e) => Some(e),
+            Url(ref e) => Some(e),
             #[cfg(feature = "toml")]
-            Error::TomlSer(ref e) => Some(e),
+            TomlSer(ref e) => Some(e),
             #[cfg(feature = "toml")]
-            Error::TomlDe(ref e) => Some(e),
+            TomlDe(ref e) => Some(e),
-            Error::HeaderStrError(ref e) => Some(e),
+            HeaderStrError(ref e) => Some(e),
-            Error::HeaderParseError(ref e) => Some(e),
+            HeaderParseError(ref e) => Some(e),
             #[cfg(feature = "env")]
-            Error::Envy(ref e) => Some(e),
+            Envy(ref e) => Some(e),
-            Error::SerdeQs(ref e) => Some(e),
+            SerdeQs(ref e) => Some(e),
-            Error::IntConversion(ref e) => Some(e),
+            IntConversion(ref e) => Some(e),
-            Error::Api {
+            #[cfg(feature = "magic")]
+            Magic(ref e) => Some(e),
+            Api {
                 ..
             }
-            | Error::ClientIdRequired
+            | ClientIdRequired
-            | Error::ClientSecretRequired
+            | ClientSecretRequired
-            | Error::AccessTokenRequired
+            | AccessTokenRequired
-            | Error::MissingField(_)
+            | MissingField(_)
-            | Error::Other(..) => None,
+            | Other(..) => None,
         }
     }
 }
@@ -145,14 +153,19 @@ from! {
     SerdeError => Serde,
     UrlEncodedError => UrlEncoded,
     UrlError => Url,
-    #[cfg(feature = "toml")] TomlSerError => TomlSer,
+    #[cfg(feature = "toml")]
-    #[cfg(feature = "toml")] TomlDeError => TomlDe,
+    TomlSerError => TomlSer,
+    #[cfg(feature = "toml")]
+    TomlDeError => TomlDe,
     HeaderStrError => HeaderStrError,
     HeaderParseError => HeaderParseError,
-    #[cfg(feature = "env")] EnvyError => Envy,
+    #[cfg(feature = "env")]
+    EnvyError => Envy,
     SerdeQsError => SerdeQs,
     String => Other,
     TryFromIntError => IntConversion,
+    #[cfg(feature = "magic")]
+    MagicError => Magic,
 }
 
 #[macro_export]

src/macros.rs

@@ -163,33 +163,15 @@ macro_rules! route_v2 {
                 "`, with a description/alt-text.",
                 "\n# Errors\nIf `access_token` is not set."),
             pub async fn $name(&self $(, $param: $typ)*, description: Option<String>) -> Result<$ret> {
-                use reqwest::multipart::{Form, Part};
+                use reqwest::multipart::Form;
-                use std::io::Read;
+                use log::{debug, as_debug};
-                use log::{debug, error, as_debug};
                 use uuid::Uuid;
 
                 let call_id = Uuid::new_v4();
 
                 let form_data = Form::new()
                     $(
-                        .part(stringify!($param), {
+                        .part(stringify!($param), self.get_form_part($param)?)
-                            let path = $param.as_ref();
-                            match std::fs::File::open(path) {
-                                Ok(mut file) => {
-                                    let mut data = if let Ok(metadata) = file.metadata() {
-                                        Vec::with_capacity(metadata.len().try_into()?)
-                                    } else {
-                                        vec![]
-                                    };
-                                    file.read_to_end(&mut data)?;
-                                    Part::bytes(data)
-                                }
-                                Err(err) => {
-                                    error!(path = as_debug!(path), error = as_debug!(err); "error reading file contents for multipart form");
-                                    return Err(err.into());
-                                }
-                            }
-                        })
                      )*;
 
                 let form_data = if let Some(description) = description {
@@ -224,33 +206,16 @@ macro_rules! route_v2 {
                 $url,
                 "`\n# Errors\nIf `access_token` is not set."),
             pub async fn $name(&self, $($param: $typ,)*) -> Result<$ret> {
-                use reqwest::multipart::{Form, Part};
+                use reqwest::multipart::Form;
-                use std::io::Read;
+                use log::{debug, as_debug};
-                use log::{debug, error, as_debug};
                 use uuid::Uuid;
 
+
                 let call_id = Uuid::new_v4();
 
                 let form_data = Form::new()
                     $(
-                        .part(stringify!($param), {
+                        .part(stringify!($param), self.get_form_part($param)?)
-                            let path = $param.as_ref();
-                            match std::fs::File::open(path) {
-                                Ok(mut file) => {
-                                    let mut data = if let Ok(metadata) = file.metadata() {
-                                        Vec::with_capacity(metadata.len().try_into()?)
-                                    } else {
-                                        vec![]
-                                    };
-                                    file.read_to_end(&mut data)?;
-                                    Part::bytes(data)
-                                }
-                                Err(err) => {
-                                    error!(path = as_debug!(path), error = as_debug!(err); "error reading file contents for multipart form");
-                                    return Err(err.into());
-                                }
-                            }
-                        })
                      )*;
 
                 let url = &self.route(concat!("/api/v2/", $url));
@@ -285,33 +250,16 @@ macro_rules! route {
                 $url,
                 "`\n# Errors\nIf `access_token` is not set."),
             pub async fn $name(&self, $($param: $typ,)*) -> Result<$ret> {
-                use reqwest::multipart::{Form, Part};
+                use reqwest::multipart::Form;
-                use std::io::Read;
+                use log::{debug, as_debug};
-                use log::{debug, error, as_debug};
                 use uuid::Uuid;
 
+
                 let call_id = Uuid::new_v4();
 
                 let form_data = Form::new()
                     $(
-                        .part(stringify!($param), {
+                        .part(stringify!($param), self.get_form_part($param)?)
-                            let path = $param.as_ref();
-                            match std::fs::File::open(path) {
-                                Ok(mut file) => {
-                                    let mut data = if let Ok(metadata) = file.metadata() {
-                                        Vec::with_capacity(metadata.len().try_into()?)
-                                    } else {
-                                        vec![]
-                                    };
-                                    file.read_to_end(&mut data)?;
-                                    Part::bytes(data)
-                                }
-                                Err(err) => {
-                                    error!(path = as_debug!(path), error = as_debug!(err); "error reading file contents for multipart form");
-                                    return Err(err.into());
-                                }
-                            }
-                        })
                      )*;
 
                 let url = &self.route(concat!("/api/v1/", $url));
@@ -343,33 +291,16 @@ macro_rules! route {
                 "`, with a description/alt-text.",
                 "\n# Errors\nIf `access_token` is not set."),
             pub async fn $name(&self $(, $param: $typ)*, description: Option<String>) -> Result<$ret> {
-                use reqwest::multipart::{Form, Part};
+                use reqwest::multipart::Form;
-                use std::io::Read;
+                use log::{debug, as_debug};
-                use log::{debug, error, as_debug};
                 use uuid::Uuid;
 
+
                 let call_id = Uuid::new_v4();
 
                 let form_data = Form::new()
                     $(
-                        .part(stringify!($param), {
+                        .part(stringify!($param), self.get_form_part($param)?)
-                            let path = $param.as_ref();
-                            match std::fs::File::open(path) {
-                                Ok(mut file) => {
-                                    let mut data = if let Ok(metadata) = file.metadata() {
-                                        Vec::with_capacity(metadata.len().try_into()?)
-                                    } else {
-                                        vec![]
-                                    };
-                                    file.read_to_end(&mut data)?;
-                                    Part::bytes(data)
-                                }
-                                Err(err) => {
-                                    error!(path = as_debug!(path), error = as_debug!(err); "error reading file contents for multipart form");
-                                    return Err(err.into());
-                                }
-                            }
-                        })
                      )*;
 
                 let form_data = if let Some(description) = description {

src/mastodon.rs

@@ -23,16 +23,21 @@ use crate::{
 };
 use futures::TryStream;
 use log::{as_debug, as_serde, debug, error, trace};
-use reqwest::{Client, RequestBuilder};
+#[cfg(feature = "magic")]
+use magic::CookieFlags;
+use reqwest::{multipart::Part, Client, RequestBuilder};
 use url::Url;
 use uuid::Uuid;
 
 /// The Mastodon client is a smart pointer to this struct
-#[derive(Clone, Debug)]
+#[derive(Debug)]
 pub struct MastodonClient {
     pub(crate) client: Client,
     /// Raw data about your mastodon instance.
     pub data: Data,
+    /// A handle to access libmagic for mime-types.
+    #[cfg(feature = "magic")]
+    magic: magic::Cookie,
 }
 
 /// Your mastodon application client, handles all requests to and from Mastodon.
@@ -49,6 +54,18 @@ pub struct MastodonUnauthenticated {
 
 impl From<Data> for Mastodon {
     /// Creates a mastodon instance from the data struct.
+    #[cfg(feature = "magic")]
+    fn from(data: Data) -> Mastodon {
+        MastodonClient {
+            client: Client::new(),
+            data,
+            magic: Self::default_magic().expect("failed to open magic cookie or load database"),
+        }
+        .into()
+    }
+
+    /// Creates a mastodon instance from the data struct.
+    #[cfg(not(feature = "magic"))]
     fn from(data: Data) -> Mastodon {
         MastodonClient {
             client: Client::new(),
@@ -156,7 +173,41 @@ impl Mastodon {
         stream_direct@"direct",
     }
 
+    /// Return a magic cookie, loaded with the default mime
+    #[cfg(feature = "magic")]
+    fn default_magic() -> Result<magic::Cookie> {
+        let magic = magic::Cookie::open(Default::default())?;
+        magic.load::<&str>(&[])?;
+        magic.set_flags(CookieFlags::MIME)?;
+        Ok(magic)
+    }
+
     /// Create a new Mastodon Client
+    #[cfg(feature = "magic")]
+    pub fn new(client: Client, data: Data) -> Self {
+        Self::new_with_magic(
+            client,
+            data,
+            Self::default_magic().expect("failed to open magic cookie or load database"),
+        )
+    }
+
+    /// Create a new Mastodon Client, passing in a pre-constructed magic
+    /// cookie.
+    ///
+    /// This is mainly here so you have a wait to construct the client which
+    /// won't panic.
+    #[cfg(feature = "magic")]
+    pub fn new_with_magic(client: Client, data: Data, magic: magic::Cookie) -> Self {
+        Mastodon(Arc::new(MastodonClient {
+            client,
+            data,
+            magic,
+        }))
+    }
+
+    /// Create a new Mastodon Client
+    #[cfg(not(feature = "magic"))]
     pub fn new(client: Client, data: Data) -> Self {
         Mastodon(Arc::new(MastodonClient {
             client,
@@ -342,6 +393,43 @@ impl Mastodon {
     fn authenticated(&self, request: RequestBuilder) -> RequestBuilder {
         request.bearer_auth(&self.data.token)
     }
+
+    /// Return a part for a multipart form submission from a file, including
+    /// the name of the file, and, if the "magic" feature is enabled, the mime-
+    /// type.
+    fn get_form_part(&self, path: impl AsRef<Path>) -> Result<Part> {
+        use std::io::Read;
+
+        let path = path.as_ref();
+        let mime = if cfg!(feature = "magic") {
+            self.magic.file(path).ok()
+            // if it doesn't work, it's no big deal. The server will look at
+            // the filepath if this isn't here and things should still work.
+        } else {
+            None
+        };
+        match std::fs::File::open(path) {
+            Ok(mut file) => {
+                let mut data = if let Ok(metadata) = file.metadata() {
+                    Vec::with_capacity(metadata.len().try_into()?)
+                } else {
+                    vec![]
+                };
+                file.read_to_end(&mut data)?;
+                let part =
+                    Part::bytes(data).file_name(Cow::Owned(path.to_string_lossy().to_string()));
+                Ok(if let Some(mime) = mime {
+                    part.mime_str(&mime)?
+                } else {
+                    part
+                })
+            },
+            Err(err) => {
+                error!(path = as_debug!(path), error = as_debug!(err); "error reading file contents for multipart form");
+                return Err(err.into());
+            },
+        }
+    }
 }
 
 impl MastodonUnauthenticated {