Added Linode support

Author: summerisgone

app/server.py

@@ -301,6 +301,19 @@ async def azure_regions(_):
         return web.json_response(regions)
 
 
+@routes.get('/linode_config')
+async def linode_config(_):
+    return web.json_response({"has_secret": 'LINODE_API_TOKEN' in os.environ})
+
+
+@routes.get('/linode_regions')
+async def linode_config(_):
+    async with ClientSession() as session:
+        async with session.get('https://api.linode.com/v4/regions') as r:
+            json_body = await r.json()
+            return web.json_response(json_body)
+
+
 app = web.Application()
 app.router.add_routes(routes)
 app.add_routes([web.static('/static', join(PROJECT_ROOT, 'app', 'static'))])

app/static/provider-linode.vue

@@ -0,0 +1,109 @@
+<template>
+  <div>
+    <div v-if="ui_token_from_env">
+      <div v-if="ui_token_from_env" class="form-text alert alert-success" role="alert">
+        The token was read from the environment variable
+      </div>
+    </div>
+    <div class="form-group" v-else>
+      <label for="id_token">
+          Enter your API token. The token must have read and write permissions
+          <a href="https://github.com/trailofbits/algo/blob/master/docs/cloud-linode.md" title="https://github.com/trailofbits/algo/blob/master/docs/cloud-linode.md" class="badge bagde-pill badge-primary" target="_blank" rel="noopener noreferrer">?</a>
+      </label>
+      <input
+        type="text"
+        class="form-control"
+        id="id_token"
+        name="linode_token"
+        v-bind:disabled="ui_loading_check"
+        v-model="linode_token"
+      />
+    </div>
+    <region-select v-model="region"
+      v-bind:options="ui_region_options"
+      v-bind:loading="ui_loading_check || ui_loading_regions"
+      v-bind:error="ui_region_error">
+    </region-select>
+    <button v-on:click="submit"
+      v-bind:disabled="!is_valid" class="btn btn-primary" type="button">Next</button>
+  </div>
+</template>
+
+<script>
+module.exports = {
+  data: function() {
+    return {
+      linode_token: null,
+      region: null,
+      // helper variables
+      ui_loading_check: false,
+      ui_loading_regions: false,
+      ui_region_error: null,
+      ui_token_from_env: false,
+      ui_region_options: []
+    }
+  },
+  computed: {
+    is_valid() {
+      return (this.linode_token || this.ui_token_from_env) && this.region;
+    }
+  },
+  created: function() {
+    this.check_config();
+    this.load_regions();
+  },
+  methods: {
+    check_config() {
+      this.ui_loading_check = true;
+      return fetch("/linode_config")
+        .then(r => r.json())
+        .then(response => {
+          if (response.has_secret) {
+            this.ui_token_from_env = true;
+          }
+        })
+        .finally(() => {
+          this.ui_loading_check = false;
+        });
+    },
+    load_regions() {
+      this.ui_loading_regions = true;
+      this.ui_region_error = null;
+      const payload = this.ui_token_from_env ? {} : {
+        token: this.hcloud_token
+      };
+      fetch("/linode_regions")
+        .then((r) => {
+          if (r.status === 200) {
+            return r.json();
+          }
+          throw new Error(r.status);
+        })
+        .then((data) => {
+          this.ui_region_options = data.data.map(i => ({key: i.id, value: i.id}));
+        })
+        .catch((err) => {
+          this.ui_region_error = err;
+        })
+        .finally(() => {
+          this.ui_loading_regions = false;
+        });
+    },
+    submit() {
+      if (this.ui_token_from_env) {
+        this.$emit("submit", {
+          region: this.region
+        });
+      } else {
+        this.$emit("submit", {
+          linode_token: this.linode_token,
+          region: this.region
+        });
+      }
+    }
+  },
+  components: {
+    "region-select": window.httpVueLoader("/static/region-select.vue"),
+  }
+};
+</script>

app/static/provider-setup.vue

@@ -34,6 +34,7 @@ module.exports = {
         { name: "Google Compute Engine", alias: "gce" },
         { name: "Hetzner Cloud", alias: "hetzner" },
         { name: "Vultr", alias: "vultr" },
+        { name: "Linode", alias: "linode" },
         { name: "Scaleway", alias: "scaleway" },
         { name: "OpenStack (DreamCompute optimised)", alias: "openstack" },
         { name: "CloudStack (Exoscale optimised)", alias: "cloudstack" },
@@ -64,7 +65,8 @@ module.exports = {
     'vultr': window.httpVueLoader('/static/provider-vultr.vue'),
     'scaleway': window.httpVueLoader('/static/provider-scaleway.vue'),
     'hetzner': window.httpVueLoader('/static/provider-hetzner.vue'),
-    'azure': window.httpVueLoader('/static/provider-azure.vue')
+    'azure': window.httpVueLoader('/static/provider-azure.vue'),
+    'linode': window.httpVueLoader('/static/provider-linode.vue')
   }
 };
 </script>