Add Backblaze Driver (#32)

* Backblaze Driver

* Update action to work with new tests

* Fix minor issues

* Run Formatter + Switch to reqwest json parser

src/file_hosting/authorization.rs

@@ -0,0 +1,73 @@
+use crate::file_hosting::FileHostingError;
+use base64::encode;
+use serde::{Deserialize, Serialize};
+use serde_json::json;
+
+#[derive(Serialize, Deserialize, Debug, Clone)]
+#[serde(rename_all = "camelCase")]
+pub struct AuthorizationPermissions {
+    bucket_id: Option<String>,
+    bucket_name: Option<String>,
+    capabilities: Vec<String>,
+    name_prefix: Option<String>,
+}
+
+#[derive(Serialize, Deserialize, Debug, Clone)]
+#[serde(rename_all = "camelCase")]
+pub struct AuthorizationData {
+    pub absolute_minimum_part_size: i32,
+    pub account_id: String,
+    pub allowed: AuthorizationPermissions,
+    pub api_url: String,
+    pub authorization_token: String,
+    pub download_url: String,
+    pub recommended_part_size: i32,
+}
+
+#[derive(Serialize, Deserialize, Debug)]
+#[serde(rename_all = "camelCase")]
+pub struct UploadUrlData {
+    pub bucket_id: String,
+    pub upload_url: String,
+    pub authorization_token: String,
+}
+
+pub async fn authorize_account(
+    key_id: String,
+    application_key: String,
+) -> Result<AuthorizationData, FileHostingError> {
+    let combined_key = format!("{}:{}", key_id, application_key);
+    let formatted_key = format!("Basic {}", encode(combined_key));
+
+    Ok(reqwest::Client::new()
+        .get("https://api.backblazeb2.com/b2api/v2/b2_authorize_account")
+        .header(reqwest::header::CONTENT_TYPE, "application/json")
+        .header(reqwest::header::AUTHORIZATION, formatted_key)
+        .send()
+        .await?
+        .json()
+        .await?)
+}
+
+pub async fn get_upload_url(
+    authorization_data: AuthorizationData,
+    bucket_id: String,
+) -> Result<UploadUrlData, FileHostingError> {
+    Ok(reqwest::Client::new()
+        .post(&format!("{}/b2api/v2/b2_get_upload_url", authorization_data.api_url).to_string())
+        .header(reqwest::header::CONTENT_TYPE, "application/json")
+        .header(
+            reqwest::header::AUTHORIZATION,
+            authorization_data.authorization_token,
+        )
+        .body(
+            json!({
+                "bucketId": bucket_id,
+            })
+            .to_string(),
+        )
+        .send()
+        .await?
+        .json()
+        .await?)
+}