Allow uploading files locally instead of through WebDAV

This gives us more flexibility: after all how often does one have
a WebDAV server handy (unless you're smart enough to use HelioHost
or some other awesome server)?

README.md

@@ -40,10 +40,15 @@ files, and for your Ghost API interface. The parameters to set are:
 * `WEBDAV_SERVER_URL` - location of your WebDAV server
 * `WEBDAV_USERNAME` - username for signing in
 * `WEBDAV_PASSWORD` - password, likewise
-* `WEBDAV_UPLOADED_PATH` - path where uploaded images will be served (it
+* `WEBDAV_PATH_PREFIX` - prefix to add to all WebDAV paths: no uploads
-  could end up being different from `WEBDAV_SERVER_URL`: say you go to
+  will happen outside of this path
-  `https://myhost.com:1234/dav/[folder]` to upload, but the public sees
+* `UPLOADED_PATH_PREFIX` - path where uploaded images will be
-  it as `https://media.mysite.com/[folder]`.
+  served (it could end up being different from `WEBDAV_SERVER_URL`: say
+  you go to `https://myhost.com:1234/dav/[folder]` to upload, but the
+  public sees it as `https://media.mysite.com/[folder]`—or, more
+  significantly, when you're doing a local-directory upload!
+* `LOCAL_UPLOAD_PATH_PREFIX` - path where uploaded images will be copied
+  locally, if you choose not to use WebDAV
 * `GHOST_URL` - URL of your Ghost installation
 * `GHOST_VERSION` - 'v2' or 'v3' depending on which version you're using
 * `GHOST_ADMIN_KEY` - 'Admi API key for Ghost'
@@ -51,7 +56,11 @@ files, and for your Ghost API interface. The parameters to set are:
 In case you're wondering about the WebDAV server: that's the setup we
 use at Snipette. We'd like to eventually let you upload directly through
 Ghost as well, but we're prioritising our setup first to get running
-before we think of anything else. Pull requests are welcome!
+before we think of anything else.
+
+Now, we've got a "local upload" option as well which basically copies
+the file to a specified directory on the system. Pull requests for
+anything else are welcome!
 
 ## Pull a post from Medium
 

cli.js

@@ -42,14 +42,34 @@ program.command('setup')
       '\n\nWe\'re going to take you through some steps' +
       ' to set up your system.\n'
     )
-    console.log('First up: WebDAV details.')
+
+    var res
+    prompt.start()
+
+    console.log('First up: File uploads.')
+    console.log(
+      'Would you like to upload your files via WebDAV, or just ' +
+      'copy them to a local folder on your filesystem? Type ' +
+      '"webdav" or "local" to choose.\n'
+    )
+
+    res = await prompt.get([
+      {
+        name: 'upload_mode',
+        default: 'webdav',
+        pattern: /^(webdav|local)$/ig,
+        message: 'Please enter "webdav" or "local"',
+      },
+    ])
+
+    if (res.upload_mode == 'webdav') {
+
+      console.log('You\'re going with WebDAV? Awesome!')
       console.log(
         'Please enter your server url (including the port), ' +
         'username, and password\n'
       )
 
-    var res
-    prompt.start()
       res = await prompt.get([
         { name: 'server_url', default: config.webdav.server_url || '' },
         { name: 'username', default: config.webdav.username || '' },
@@ -70,11 +90,34 @@ program.command('setup')
       )
       res = await prompt.get([
         { name: 'path_prefix', default: config.webdav.path_prefix || '' },
-      { name: 'uploaded_path_prefix', default: config.webdav.uploaded_path_prefix || '' },
+        {
+          name: 'uploaded_path_prefix',
+          default: config.uploaded_path_prefix || config.webdav.uploaded_path_prefix || ''
+        },
       ])
       config.webdav.path_prefix = res.path_prefix
-    config.webdav.uploaded_path_prefix = res.uploaded_path_prefix
+      config.uploaded_path_prefix = res.uploaded_path_prefix
-    console.log(`Cool. So uploads to ${config.webdav.path_prefix} will go to ${config.webdav.uploaded_path_prefix}.`)
+      console.log(`Cool. So uploads to ${config.webdav.path_prefix} will be visible at ${config.uploaded_path_prefix}.`)
+
+    } else if (res.upload_mode == 'local') {
+      console.log('You\'re saving files locally? Smart!')
+      console.log(
+        'Two settings we need to know to get things running ' +
+        'smoothly: we need the local path/folder where you\'ll be ' +
+        'uploading the files, and the uploaded path prefix.\n' +
+        'The local path is the folder to which you upload, like ' +
+        '`/var/www/seance-uploads`, while the uploaded path prefix ' +
+        'is what you\'d stick in front of the filename after ' +
+        'uploading (like `https://media.mysite.com/seance-uploads`).\n'
+      )
+      res = await prompt.get([
+        { name: 'path_prefix', default: config.local_upload.path_prefix || '' },
+        { name: 'uploaded_path_prefix', default: config.uploaded_path_prefix || '' },
+      ])
+      config.local_upload.path_prefix = res.path_prefix
+      config.uploaded_path_prefix = res.uploaded_path_prefix
+      console.log(`Cool. So uploads to ${config.local_upload.path_prefix} will be visible at ${config.uploaded_path_prefix}.`)
+    }
 
     console.log('\n\nNext up: Ghost settings.')
     console.log(

config.js

@@ -11,18 +11,26 @@ convict.addFormats(convict_format_with_validator)
 convict.addParser({ extension: ['yml', 'yaml'], parse: yaml.safeLoad })
 
 let config = convict({
+  uploaded_path_prefix: {
+    doc: 'URL where files are uploaded (eg. https://mysitem.com/media)',
+    format: 'url',
+    env: 'UPLOADED_PATH_PREFIX',
+    default: null,
+  },
   webdav: {
     server_url: {
       doc: 'WebDAV server URL (eg. https://myhost.com:2078)',
       format: 'url',
       env: 'WEBDAV_SERVER_URL',
       default: null,
+      nullable: true,
     },
     username: {
       doc: 'Username for WebDAV server',
       format: 'String',
       env: 'WEBDAV_USERNAME',
       default: null,
+      nullable: true,
     },
     password: {
       doc: 'Password for WebDAV server',
@@ -30,18 +38,21 @@ let config = convict({
       env: 'WEBDAV_PASSWORD',
       default: null,
       sensitive: true,
+      nullable: true,
     },
     path_prefix: {
       doc: 'Where to upload files (eg. /seance-uploads)',
       format: 'String',
       env: 'WEBDAV_PATH_PREFIX',
       default: null,
+      nullable: true,
     },
-    uploaded_path_prefix: {
+    uploaded_path_prefix: { // FIXME: Deprecated; remove
       doc: 'URL where files are uploaded (eg. https://mysitem.com/media)',
       format: 'url',
       env: 'WEBDAV_UPLOADED_PATH_PREFIX',
       default: null,
+      nullable: true,
     },
     use_digest: {
       doc: 'Whether to use digest authentication',
@@ -50,6 +61,14 @@ let config = convict({
       default: false,
     }
   },
+  local_upload: {
+     path_prefix: {
+      doc: 'Where to upload files locally (eg. /media/seance-uploads)',
+      format: 'String',
+      env: 'LOCAL_UPLOAD_PATH_PREFIX',
+      default: null,
+    },
+  },
   ghost: {
     url: {
       doc: 'URL of Ghost installation',
@@ -75,7 +94,7 @@ let config = convict({
     format: '*', // TODO: validate by checking path
     env: 'SEPARATOR_IMAGE',
     default: null,
-  }
+  },
 })
 
 // Load configs from home directory, if present
@@ -100,6 +119,17 @@ try {
   validated = false
 }
 
+// Update deprecated value: config.webdav.uploaded_path_prefix
+if (!!config.webdav && !!config.webdav.uploaded_path_prefix) {
+  console.warn(
+    'Warning: config.webdav.uploaded_path_prefix and the ' +
+    'WEBDAV_UPLOADED_PATH_PREFIX environment variable are ' +
+    'deprecated! Please use config.uploaded_path_prefix or ' +
+    'the UPLOADED_PATH_PREFIX environment variable instead.'
+  )
+  config.uploaded_path_prefix = config.webdav.uploaded_path_prefix
+}
+
 allConf = config.getProperties()
 allConf.validated = validated
 

seance.js

@@ -159,7 +159,7 @@ class Seance {
       return false
     }
 
-    // Decide WebDAV upload path
+    // Decide file/WebDAV upload path
     var current_date = new Date()
 
     const uploadPath = path.join(
@@ -168,12 +168,9 @@ class Seance {
       postSlug
     )
 
-    // Path where WebDAV files will be placed (eg. https://example.com:2078)
+    // Public path to upload those files (eg. https://example.com:2078)
-    const davPath = path.join(config.webdav.path_prefix, uploadPath)
-
-    // Public path to upload those files (eg. https://media.example.com/uploads)
     // We'll do it directly since path.join mangles the protocol
-    const uploadedPath = config.webdav.uploaded_path_prefix + '/' + uploadPath
+    const uploadedPath = config.uploaded_path_prefix + '/' + uploadPath
 
     // load metadata file
     this.emit('update', {
@@ -270,7 +267,7 @@ class Seance {
 
             // Let's wait for the upload, just to avoid conflicts
             if (!options.noUpload) {
-              await this.uploadDav(davPath, imagePath)
+              await this.upload(uploadPath, imagePath)
             }
 
             newLine = '![' + imageAlt + '](' + uploadedPath + '/' + imageName + ')'
@@ -320,7 +317,7 @@ class Seance {
           })
 
           if (!options.noUpload) {
-            this.uploadDav(davPath, imagePath)
+            this.upload(uploadPath, imagePath)
           }
 
           featuredImagePath = uploadedPath + '/' + imageName
@@ -567,8 +564,7 @@ class Seance {
       loglevel: 'info'
     })
 
-    await this.uploadDav(path.join(config.webdav.path_prefix,'avatars'),
+    await this.upload('avatars', filePath)
-      filePath)
 
     // Generate Ghost JSON
 
@@ -581,7 +577,7 @@ class Seance {
             bio: json.payload.user.bio,
             email: email,
             name: json.payload.user.name,
-            profile_image: config.webdav.uploaded_path_prefix + '/avatars/' + fileName
+            profile_image: config.uploaded_path_prefix + '/avatars/' + fileName
           }
         ]
       },
@@ -680,6 +676,9 @@ class Seance {
    * @returns [string] status
   */
   async uploadDav (dirPath, filePath) {
+    // Set uploadPath
+    // We'll do it directly since path.join mangles the protocol
+    let uploadPath = path.join(config.webdav.path_prefix, dirPath)
 
     // connect to webdav
     const client = createClient(
@@ -692,7 +691,7 @@ class Seance {
 
     // create directory if not exists
     console.debug(`[dav-upload] Loading ${dirPath}`)
-    if (!await this.createDirIfNotExist(client, dirPath)) {
+    if (!await this.createDirIfNotExist(client, uploadPath)) {
       console.error(`[dav-upload] Could not upload ${path.basename(filePath)} :(`)
       return false
     }
@@ -700,7 +699,7 @@ class Seance {
     // upload a file
     console.debug('Uploading file')
     const outStream = client.createWriteStream(
-      path.join(dirPath, path.basename(filePath))
+      path.join(uploadPath, path.basename(filePath))
     )
     outStream.on('finish', () => console.debug('Uploaded successfully.'))
 
@@ -710,6 +709,90 @@ class Seance {
     return true
   }
 
+
+  /**
+   * function [exists]
+   * @returns [boolean]
+   *
+   * check if the given file exists or not
+  */
+  async fsExists (path) {
+    try {
+      await fs.promises.access(path)
+      return true
+    } catch {
+      return false
+    }
+  }
+
+  /**
+   * function [uploadLocal]
+   * @returns [string] status
+   *
+   * upload to a local file path. This should technically be
+   * called "copy" and not "upload", but the equivalent
+   * WebDAV one is actually an upload so ¯\_(ツ)_/¯
+  */
+  async uploadLocal (dirPath, filePath) {
+    // Set uploadPath
+    // We'll do it directly since path.join mangles the protocol
+    let uploadPath = path.join(config.local_upload.path_prefix, dirPath)
+
+    // safety: don't touch directories outside LOCAL_UPLOAD_PATH_PREFIX
+    if (!uploadPath.startsWith(config.local_upload.path_prefix)) {
+      console.error(`[local-upload] Cannot create directories outside ${config.local_upload.path_prefix}`)
+      return false
+    }
+
+    // create directory if not exists
+    console.debug(`[local-upload] Loading ${uploadPath}`)
+    if (
+      !(await this.fsExists(uploadPath)) ||
+      !(await fs.promises.lstat(uploadPath)).isDirectory()
+    ) {
+      if (!(await fs.promises.mkdir(uploadPath,
+        { recursive: true }))) {
+        console.error(`[local-upload] Could not upload ${path.basename(filePath)} :(`)
+        return false
+      }
+    }
+
+    // actually do the copying
+    console.debug('Uploading file')
+    try {
+      await fs.promises.copyFile(filePath,
+        path.join(uploadPath, path.basename(filePath)))
+    } catch (err) {
+      console.error(`Upload error: ${err}`)
+    }
+
+    return true
+  }
+
+
+  /**
+   * function [upload]
+   * @returns [boolean] status
+   *
+   * upload to WebDAV or a local folder, whichever is configured.
+   * If both are considered, WebDAV will be preferred.
+   */
+  async upload (dirPath, filePath) {
+    if (
+      !!config.webdav &&
+      !!config.webdav.server_url &&
+      !!config.webdav.path_prefix
+    ) {
+      return await this.uploadDav(dirPath, filePath)
+    } else if (
+      !!config.local_upload &&
+      !!config.local_upload.path_prefix
+    ) {
+      return await this.uploadLocal(dirPath, filePath)
+    } else {
+      throw { error: 'Either webdav or local_upload settings must be configured!' }
+    }
+  }
 }
 
 // Make Seance an EventEmitter