Fix GitHub tags of dependencies in the Dockerfiles

[skip ci]

.github/workflows/build.yml

@@ -19,13 +19,22 @@ jobs:
     - name: Install dependencies
       run: apk add --no-cache yarn yaml sqlite-static libarchive-dev libarchive-static acl-static expat-static zstd-static lz4-static bzip2-static
     - name: Build
-      run: make static
+      run: make static || make static
     - name: Linter
       run: make check
     - name: Run tests
       run: make test
-    - name: Upload artifact
+    - name: Upload binary
       uses: actions/upload-artifact@v2
       with:
         name: mango
         path: mango
+    - name: build arm32v7 object file
+      run: make arm32v7 || make arm32v7
+    - name: build arm64v8 object file
+      run: make arm64v8 || make arm64v8
+    - name: Upload object files
+      uses: actions/upload-artifact@v2
+      with:
+        name: object files
+        path: ./*.o

Dockerfile.arm32v7

@@ -0,0 +1,13 @@
+FROM arm32v7/ubuntu:18.04
+
+RUN apt-get update && apt-get install -y wget git make llvm-8 llvm-8-dev g++ libsqlite3-dev libyaml-dev libgc-dev libssl-dev libcrypto++-dev libevent-dev libgmp-dev zlib1g-dev libpcre++-dev pkg-config libarchive-dev libxml2-dev libacl1-dev nettle-dev liblzo2-dev liblzma-dev libbz2-dev
+
+RUN git clone https://github.com/crystal-lang/crystal && cd crystal && git checkout 0.34.0 && make deps && cd ..
+RUN git clone https://github.com/kostya/myhtml && cd myhtml/src/ext && git checkout v1.5.0 && make && cd ..
+RUN git clone https://github.com/jessedoyle/duktape.cr && cd duktape.cr/ext && git checkout v0.20.0 && make && cd ..
+
+COPY mango-arm32v7.o .
+
+RUN cc 'mango-arm32v7.o' -o 'mango' -rdynamic -lxml2 /myhtml/src/ext/modest-c/lib/libmodest_static.a -L/duktape.cr/src/.build/lib -L/duktape.cr/src/.build/include -lduktape -lm `pkg-config libarchive --libs` -lz `command -v pkg-config > /dev/null && pkg-config --libs --silence-errors libssl || printf %s '-lssl -lcrypto'` `command -v pkg-config > /dev/null && pkg-config --libs --silence-errors libcrypto || printf %s '-lcrypto'` -lgmp -lsqlite3 -lyaml -lpcre -lm /usr/lib/arm-linux-gnueabihf/libgc.so -lpthread /crystal/src/ext/libcrystal.a -levent -lrt -ldl -L/usr/bin/../lib/crystal/lib -L/usr/bin/../lib/crystal/lib
+
+CMD ["./mango"]

Dockerfile.arm64v8

@@ -0,0 +1,13 @@
+FROM arm64v8/ubuntu:18.04
+
+RUN apt-get update && apt-get install -y wget git make llvm-8 llvm-8-dev g++ libsqlite3-dev libyaml-dev libgc-dev libssl-dev libcrypto++-dev libevent-dev libgmp-dev zlib1g-dev libpcre++-dev pkg-config libarchive-dev libxml2-dev libacl1-dev nettle-dev liblzo2-dev liblzma-dev libbz2-dev
+
+RUN git clone https://github.com/crystal-lang/crystal && cd crystal && git checkout 0.34.0 && make deps && cd ..
+RUN git clone https://github.com/kostya/myhtml && cd myhtml/src/ext && git checkout v1.5.0 && make && cd ..
+RUN git clone https://github.com/jessedoyle/duktape.cr && cd duktape.cr/ext && git checkout v0.20.0 && make && cd ..
+
+COPY mango-arm64v8.o .
+
+RUN cc 'mango-arm64v8.o' -o 'mango' -rdynamic -lxml2 /myhtml/src/ext/modest-c/lib/libmodest_static.a -L/duktape.cr/src/.build/lib -L/duktape.cr/src/.build/include -lduktape -lm `pkg-config libarchive --libs` -lz `command -v pkg-config > /dev/null && pkg-config --libs --silence-errors libssl || printf %s '-lssl -lcrypto'` `command -v pkg-config > /dev/null && pkg-config --libs --silence-errors libcrypto || printf %s '-lcrypto'` -lgmp -lsqlite3 -lyaml -lpcre -lm /usr/lib/aarch64-linux-gnu/libgc.so -lpthread /crystal/src/ext/libcrystal.a -levent -lrt -ldl -L/usr/bin/../lib/crystal/lib -L/usr/bin/../lib/crystal/lib
+
+CMD ["./mango"]

Makefile

@@ -12,10 +12,10 @@ setup: libs
 	yarn gulp dev
 
 build: libs
-	crystal build src/mango.cr --release --progress
+	crystal build src/mango.cr --release --progress --error-trace
 
 static: uglify | libs
-	crystal build src/mango.cr --release --progress --static
+	crystal build src/mango.cr --release --progress --static --error-trace
 
 libs:
 	shards install --production
@@ -31,6 +31,12 @@ check:
 	./bin/ameba
 	./dev/linewidth.sh
 
+arm32v7:
+	crystal build src/mango.cr --release --progress --error-trace --cross-compile --target='arm-linux-gnueabihf' -o mango-arm32v7
+
+arm64v8:
+	crystal build src/mango.cr --release --progress --error-trace --cross-compile --target='aarch64-linux-gnu' -o mango-arm64v8
+
 install:
 	cp mango $(INSTALL_DIR)/mango
 

README.md

@@ -51,7 +51,7 @@ The official docker images are available on [Dockerhub](https://hub.docker.com/r
 ### CLI
 
 ```
-  Mango - Manga Server and Web Reader. Version 0.10.0
+  Mango - Manga Server and Web Reader. Version 0.11.0
 
   Usage:
 
@@ -139,8 +139,12 @@ Mobile UI:
 
 ![mobile screenshot](./.github/screenshots/mobile.png)
 
+## Sponsors
+
+<a href="https://casinoshunter.com/online-casinos/"><img src="https://i.imgur.com/EJb3wBo.png" width="150" height="auto"></a>
+
 ## Contributors
 
-Please check the [development guideline](https://github.com/hkalexling/Mango/wiki/Development) if you are interest in code contributions.
+Please check the [development guideline](https://github.com/hkalexling/Mango/wiki/Development) if you are interested in code contributions.
 
 [![](https://sourcerer.io/fame/hkalexling/hkalexling/Mango/images/0)](https://sourcerer.io/fame/hkalexling/hkalexling/Mango/links/0)[![](https://sourcerer.io/fame/hkalexling/hkalexling/Mango/images/1)](https://sourcerer.io/fame/hkalexling/hkalexling/Mango/links/1)[![](https://sourcerer.io/fame/hkalexling/hkalexling/Mango/images/2)](https://sourcerer.io/fame/hkalexling/hkalexling/Mango/links/2)[![](https://sourcerer.io/fame/hkalexling/hkalexling/Mango/images/3)](https://sourcerer.io/fame/hkalexling/hkalexling/Mango/links/3)[![](https://sourcerer.io/fame/hkalexling/hkalexling/Mango/images/4)](https://sourcerer.io/fame/hkalexling/hkalexling/Mango/links/4)[![](https://sourcerer.io/fame/hkalexling/hkalexling/Mango/images/5)](https://sourcerer.io/fame/hkalexling/hkalexling/Mango/links/5)[![](https://sourcerer.io/fame/hkalexling/hkalexling/Mango/images/6)](https://sourcerer.io/fame/hkalexling/hkalexling/Mango/links/6)[![](https://sourcerer.io/fame/hkalexling/hkalexling/Mango/images/7)](https://sourcerer.io/fame/hkalexling/hkalexling/Mango/links/7)

public/css/mango.css

@@ -135,3 +135,20 @@ td>.uk-dropdown {
 #select-bar-controls a:hover {
     color: orange;
 }
+
+#main-section {
+    position: relative;
+}
+
+#totop-wrapper {
+    position: absolute;
+    top: 100vh;
+    right: 2em;
+    bottom: 0;
+}
+
+#totop-wrapper a {
+    position: fixed;
+    position: sticky;
+    top: calc(100vh - 5em);
+}

shard.lock

@@ -28,6 +28,10 @@ shards:
     github: crystal-loot/exception_page
     version: 0.1.4
 
+  http_proxy:
+    github: mamantoha/http_proxy
+    version: 0.7.1
+
   kemal:
     github: kemalcr/kemal
     version: 0.26.1

shard.yml

@@ -1,5 +1,5 @@
 name: mango
-version: 0.10.0
+version: 0.11.0
 
 authors:
   - Alex Ling <hkalexling@gmail.com>
@@ -32,3 +32,5 @@ dependencies:
     version: ~> 0.20.0
   myhtml:
     github: kostya/myhtml
+  http_proxy:
+    github: mamantoha/http_proxy

spec/spec_helper.cr

@@ -2,6 +2,7 @@ require "spec"
 require "../src/queue"
 require "../src/server"
 require "../src/config"
+require "../src/main_fiber"
 
 class State
   @@hash = {} of String => String

src/config.cr

@@ -52,12 +52,8 @@ class Config
       config.fill_defaults
       return config
     end
-    puts "The config file #{cfg_path} does not exist." \
-         " Do you want mango to dump the default config there? [Y/n]"
-    input = gets
-    if input && input.downcase == "n"
-      abort "Aborting..."
-    end
+    puts "The config file #{cfg_path} does not exist. " \
+         "Dumping the default config there."
     default = self.allocate
     default.path = path
     default.fill_defaults

src/library/library.cr

@@ -92,7 +92,6 @@ class Library
                   "Attempting to create it"
       Dir.mkdir_p @dir
     end
-    @title_ids.clear
 
     storage = Storage.new auto_close: false
 
@@ -103,6 +102,7 @@ class Library
       .map { |path| Title.new path, "", storage, self }
       .select { |title| !(title.entries.empty? && title.titles.empty?) }
       .sort { |a, b| a.title <=> b.title }
+      .tap { |_| @title_ids.clear }
       .each do |title|
         @title_hash[title.id] = title
         @title_ids << title.id

src/main_fiber.cr

@@ -0,0 +1,34 @@
+# On ARM, connecting to the SQLite DB from a spawned fiber would crash
+#   https://github.com/crystal-lang/crystal-sqlite3/issues/30
+# This is a temporary workaround that forces the relevant code to run in the
+#   main fiber
+
+class MainFiber
+  @@channel = Channel(-> Nil).new
+  @@done = Channel(Bool).new
+  @@main_fiber = Fiber.current
+
+  def self.start_and_block
+    loop do
+      if proc = @@channel.receive
+        begin
+          proc.call
+        ensure
+          @@done.send true
+        end
+      end
+      Fiber.yield
+    end
+  end
+
+  def self.run(&block : -> Nil)
+    if @@main_fiber == Fiber.current
+      block.call
+    else
+      @@channel.send block
+      until @@done.receive
+        Fiber.yield
+      end
+    end
+  end
+end

src/mangadex/api.cr

@@ -1,4 +1,3 @@
-require "http/client"
 require "json"
 require "csv"
 require "../rename"

src/mangadex/downloader.cr

@@ -27,14 +27,16 @@ module MangaDex
 
     def pop : Queue::Job?
       job = nil
-      DB.open "sqlite3://#{@queue.path}" do |db|
-        begin
-          db.query_one "select * from queue where id not like '%-%' " \
-                       "and (status = 0 or status = 1) " \
-                       "order by time limit 1" do |res|
-            job = Queue::Job.from_query_result res
+      MainFiber.run do
+        DB.open "sqlite3://#{@queue.path}" do |db|
+          begin
+            db.query_one "select * from queue where id not like '%-%' " \
+                         "and (status = 0 or status = 1) " \
+                         "order by time limit 1" do |res|
+              job = Queue::Job.from_query_result res
+            end
+          rescue
           end
-        rescue
         end
       end
       job

src/mango.cr

@@ -1,12 +1,29 @@
 require "./config"
 require "./queue"
 require "./server"
+require "./main_fiber"
 require "./mangadex/*"
 require "option_parser"
 require "clim"
 require "./plugin/*"
 
-MANGO_VERSION = "0.10.0"
+MANGO_VERSION = "0.11.0"
+
+# From http://www.network-science.de/ascii/
+BANNER = %{
+
+              _|      _|
+              _|_|  _|_|    _|_|_|  _|_|_|      _|_|_|    _|_|
+              _|  _|  _|  _|    _|  _|    _|  _|    _|  _|    _|
+              _|      _|  _|    _|  _|    _|  _|    _|  _|    _|
+              _|      _|    _|_|_|  _|    _|    _|_|_|    _|_|
+                                                    _|
+                                                _|_|
+
+
+}
+
+DESCRIPTION = "Mango - Manga Server and Web Reader. Version #{MANGO_VERSION}"
 
 macro common_option
   option "-c PATH", "--config=PATH", type: String,
@@ -22,20 +39,28 @@ end
 
 class CLI < Clim
   main do
-    desc "Mango - Manga Server and Web Reader. Version #{MANGO_VERSION}"
+    desc DESCRIPTION
     usage "mango [sub_command] [options]"
     help short: "-h"
     version "Version #{MANGO_VERSION}", short: "-v"
     common_option
     run do |opts|
+      puts BANNER
+      puts DESCRIPTION
+      puts
+
+      # empty ARGV so it won't be passed to Kemal
+      ARGV.clear
+
       Config.load(opts.config).set_current
       MangaDex::Downloader.default
       Plugin::Downloader.default
 
-      # empty ARGV so it won't be passed to Kemal
-      ARGV.clear
-      server = Server.new
-      server.start
+      spawn do
+        Server.new.start
+      end
+
+      MainFiber.start_and_block
     end
 
     sub "admin" do

src/plugin/downloader.cr

@@ -8,14 +8,16 @@ class Plugin
 
     def pop : Queue::Job?
       job = nil
-      DB.open "sqlite3://#{@queue.path}" do |db|
-        begin
-          db.query_one "select * from queue where id like '%-%' " \
-                       "and (status = 0 or status = 1) " \
-                       "order by time limit 1" do |res|
-            job = Queue::Job.from_query_result res
+      MainFiber.run do
+        DB.open "sqlite3://#{@queue.path}" do |db|
+          begin
+            db.query_one "select * from queue where id like '%-%' " \
+                         "and (status = 0 or status = 1) " \
+                         "order by time limit 1" do |res|
+              job = Queue::Job.from_query_result res
+            end
+          rescue
           end
-        rescue
         end
       end
       job

src/plugin/plugin.cr

@@ -1,6 +1,5 @@
 require "duktape/runtime"
 require "myhtml"
-require "http"
 require "xml"
 
 class Plugin

src/queue.cr

@@ -119,22 +119,24 @@ class Queue
                   "Attepmting to create it"
       Dir.mkdir_p dir
     end
-    DB.open "sqlite3://#{@path}" do |db|
-      begin
-        db.exec "create table if not exists queue " \
-                "(id text, manga_id text, title text, manga_title " \
-                "text, status integer, status_message text, " \
-                "pages integer, success_count integer, " \
-                "fail_count integer, time integer)"
-        db.exec "create unique index if not exists id_idx " \
-                "on queue (id)"
-        db.exec "create index if not exists manga_id_idx " \
-                "on queue (manga_id)"
-        db.exec "create index if not exists status_idx " \
-                "on queue (status)"
-      rescue e
-        Logger.error "Error when checking tables in DB: #{e}"
-        raise e
+    MainFiber.run do
+      DB.open "sqlite3://#{@path}" do |db|
+        begin
+          db.exec "create table if not exists queue " \
+                  "(id text, manga_id text, title text, manga_title " \
+                  "text, status integer, status_message text, " \
+                  "pages integer, success_count integer, " \
+                  "fail_count integer, time integer)"
+          db.exec "create unique index if not exists id_idx " \
+                  "on queue (id)"
+          db.exec "create index if not exists manga_id_idx " \
+                  "on queue (manga_id)"
+          db.exec "create index if not exists status_idx " \
+                  "on queue (status)"
+        rescue e
+          Logger.error "Error when checking tables in DB: #{e}"
+          raise e
+        end
       end
     end
   end
@@ -143,23 +145,27 @@ class Queue
   #   inserted. Any job already exists in the queue will be ignored.
   def push(jobs : Array(Job))
     start_count = self.count
-    DB.open "sqlite3://#{@path}" do |db|
-      jobs.each do |job|
-        db.exec "insert or ignore into queue values " \
-                "(?, ?, ?, ?, ?, ?, ?, ?, ?, ?)",
-          job.id, job.manga_id, job.title, job.manga_title,
-          job.status.to_i, job.status_message, job.pages,
-          job.success_count, job.fail_count, job.time.to_unix_ms
+    MainFiber.run do
+      DB.open "sqlite3://#{@path}" do |db|
+        jobs.each do |job|
+          db.exec "insert or ignore into queue values " \
+                  "(?, ?, ?, ?, ?, ?, ?, ?, ?, ?)",
+            job.id, job.manga_id, job.title, job.manga_title,
+            job.status.to_i, job.status_message, job.pages,
+            job.success_count, job.fail_count, job.time.to_unix_ms
+        end
       end
     end
     self.count - start_count
   end
 
   def reset(id : String)
-    DB.open "sqlite3://#{@path}" do |db|
-      db.exec "update queue set status = 0, status_message = '', " \
-              "pages = 0, success_count = 0, fail_count = 0 " \
-              "where id = (?)", id
+    MainFiber.run do
+      DB.open "sqlite3://#{@path}" do |db|
+        db.exec "update queue set status = 0, status_message = '', " \
+                "pages = 0, success_count = 0, fail_count = 0 " \
+                "where id = (?)", id
+      end
     end
   end
 
@@ -169,16 +175,20 @@ class Queue
 
   # Reset all failed tasks (missing pages and error)
   def reset
-    DB.open "sqlite3://#{@path}" do |db|
-      db.exec "update queue set status = 0, status_message = '', " \
-              "pages = 0, success_count = 0, fail_count = 0 " \
-              "where status = 2 or status = 4"
+    MainFiber.run do
+      DB.open "sqlite3://#{@path}" do |db|
+        db.exec "update queue set status = 0, status_message = '', " \
+                "pages = 0, success_count = 0, fail_count = 0 " \
+                "where status = 2 or status = 4"
+      end
     end
   end
 
   def delete(id : String)
-    DB.open "sqlite3://#{@path}" do |db|
-      db.exec "delete from queue where id = (?)", id
+    MainFiber.run do
+      DB.open "sqlite3://#{@path}" do |db|
+        db.exec "delete from queue where id = (?)", id
+      end
     end
   end
 
@@ -187,71 +197,89 @@ class Queue
   end
 
   def delete_status(status : JobStatus)
-    DB.open "sqlite3://#{@path}" do |db|
-      db.exec "delete from queue where status = (?)", status.to_i
+    MainFiber.run do
+      DB.open "sqlite3://#{@path}" do |db|
+        db.exec "delete from queue where status = (?)", status.to_i
+      end
     end
   end
 
   def count_status(status : JobStatus)
     num = 0
-    DB.open "sqlite3://#{@path}" do |db|
-      num = db.query_one "select count(*) from queue where " \
-                         "status = (?)", status.to_i, as: Int32
+    MainFiber.run do
+      DB.open "sqlite3://#{@path}" do |db|
+        num = db.query_one "select count(*) from queue where " \
+                           "status = (?)", status.to_i, as: Int32
+      end
     end
     num
   end
 
   def count
     num = 0
-    DB.open "sqlite3://#{@path}" do |db|
-      num = db.query_one "select count(*) from queue", as: Int32
+    MainFiber.run do
+      DB.open "sqlite3://#{@path}" do |db|
+        num = db.query_one "select count(*) from queue", as: Int32
+      end
     end
     num
   end
 
   def set_status(status : JobStatus, job : Job)
-    DB.open "sqlite3://#{@path}" do |db|
-      db.exec "update queue set status = (?) where id = (?)",
-        status.to_i, job.id
+    MainFiber.run do
+      DB.open "sqlite3://#{@path}" do |db|
+        db.exec "update queue set status = (?) where id = (?)",
+          status.to_i, job.id
+      end
     end
   end
 
   def get_all
     jobs = [] of Job
-    DB.open "sqlite3://#{@path}" do |db|
-      jobs = db.query_all "select * from queue order by time" do |rs|
-        Job.from_query_result rs
+    MainFiber.run do
+      DB.open "sqlite3://#{@path}" do |db|
+        jobs = db.query_all "select * from queue order by time" do |rs|
+          Job.from_query_result rs
+        end
       end
     end
     jobs
   end
 
   def add_success(job : Job)
-    DB.open "sqlite3://#{@path}" do |db|
-      db.exec "update queue set success_count = success_count + 1 " \
-              "where id = (?)", job.id
+    MainFiber.run do
+      DB.open "sqlite3://#{@path}" do |db|
+        db.exec "update queue set success_count = success_count + 1 " \
+                "where id = (?)", job.id
+      end
     end
   end
 
   def add_fail(job : Job)
-    DB.open "sqlite3://#{@path}" do |db|
-      db.exec "update queue set fail_count = fail_count + 1 " \
-              "where id = (?)", job.id
+    MainFiber.run do
+      DB.open "sqlite3://#{@path}" do |db|
+        db.exec "update queue set fail_count = fail_count + 1 " \
+                "where id = (?)", job.id
+      end
     end
   end
 
   def set_pages(pages : Int32, job : Job)
-    DB.open "sqlite3://#{@path}" do |db|
-      db.exec "update queue set pages = (?), success_count = 0, " \
-              "fail_count = 0 where id = (?)", pages, job.id
+    MainFiber.run do
+      DB.open "sqlite3://#{@path}" do |db|
+        db.exec "update queue set pages = (?), success_count = 0, " \
+                "fail_count = 0 where id = (?)", pages, job.id
+      end
     end
   end
 
   def add_message(msg : String, job : Job)
-    DB.open "sqlite3://#{@path}" do |db|
-      db.exec "update queue set status_message = " \
-              "status_message || (?) || (?) where id = (?)",
-        "\n", msg, job.id
+    MainFiber.run do
+      DB.open "sqlite3://#{@path}" do |db|
+        db.exec "update queue set status_message = " \
+                "status_message || (?) || (?) where id = (?)",
+          "\n", msg, job.id
+      end
     end
   end
 

src/storage.cr

@@ -32,38 +32,40 @@ class Storage
                   "Attepmting to create it"
       Dir.mkdir_p dir
     end
-    DB.open "sqlite3://#{@path}" do |db|
-      begin
-        # We create the `ids` table first. even if the uses has an
-        #   early version installed and has the `user` table only,
-        #   we will still be able to create `ids`
-        db.exec "create table ids" \
-                "(path text, id text, is_title integer)"
-        db.exec "create unique index path_idx on ids (path)"
-        db.exec "create unique index id_idx on ids (id)"
+    MainFiber.run do
+      DB.open "sqlite3://#{@path}" do |db|
+        begin
+          # We create the `ids` table first. even if the uses has an
+          #   early version installed and has the `user` table only,
+          #   we will still be able to create `ids`
+          db.exec "create table ids" \
+                  "(path text, id text, is_title integer)"
+          db.exec "create unique index path_idx on ids (path)"
+          db.exec "create unique index id_idx on ids (id)"
 
-        db.exec "create table users" \
-                "(username text, password text, token text, admin integer)"
-      rescue e
-        unless e.message.not_nil!.ends_with? "already exists"
-          Logger.fatal "Error when checking tables in DB: #{e}"
-          raise e
+          db.exec "create table users" \
+                  "(username text, password text, token text, admin integer)"
+        rescue e
+          unless e.message.not_nil!.ends_with? "already exists"
+            Logger.fatal "Error when checking tables in DB: #{e}"
+            raise e
+          end
+
+          # If the DB is initialized through CLI but no user is added, we need
+          #   to create the admin user when first starting the app
+          user_count = db.query_one "select count(*) from users", as: Int32
+          init_admin if init_user && user_count == 0
+        else
+          Logger.debug "Creating DB file at #{@path}"
+          db.exec "create unique index username_idx on users (username)"
+          db.exec "create unique index token_idx on users (token)"
+
+          init_admin if init_user
         end
-
-        # If the DB is initialized through CLI but no user is added, we need
-        #   to create the admin user when first starting the app
-        user_count = db.query_one "select count(*) from users", as: Int32
-        init_admin if init_user && user_count == 0
-      else
-        Logger.debug "Creating DB file at #{@path}"
-        db.exec "create unique index username_idx on users (username)"
-        db.exec "create unique index token_idx on users (token)"
-
-        init_admin if init_user
       end
-    end
-    unless @auto_close
-      @db = DB.open "sqlite3://#{@path}"
+      unless @auto_close
+        @db = DB.open "sqlite3://#{@path}"
+      end
     end
   end
 
@@ -87,37 +89,45 @@ class Storage
   end
 
   def verify_user(username, password)
-    get_db do |db|
-      begin
-        hash, token = db.query_one "select password, token from " \
-                                   "users where username = (?)",
-          username, as: {String, String?}
-        unless verify_password hash, password
-          Logger.debug "Password does not match the hash"
-          return nil
+    out_token = nil
+    MainFiber.run do
+      get_db do |db|
+        begin
+          hash, token = db.query_one "select password, token from " \
+                                     "users where username = (?)",
+            username, as: {String, String?}
+          unless verify_password hash, password
+            Logger.debug "Password does not match the hash"
+            next
+          end
+          Logger.debug "User #{username} verified"
+          if token
+            out_token = token
+            next
+          end
+          token = random_str
+          Logger.debug "Updating token for #{username}"
+          db.exec "update users set token = (?) where username = (?)",
+            token, username
+          out_token = token
+        rescue e
+          Logger.error "Error when verifying user #{username}: #{e}"
         end
-        Logger.debug "User #{username} verified"
-        return token if token
-        token = random_str
-        Logger.debug "Updating token for #{username}"
-        db.exec "update users set token = (?) where username = (?)",
-          token, username
-        return token
-      rescue e
-        Logger.error "Error when verifying user #{username}: #{e}"
-        return nil
       end
     end
+    out_token
   end
 
   def verify_token(token)
     username = nil
-    get_db do |db|
-      begin
-        username = db.query_one "select username from users where " \
-                                "token = (?)", token, as: String
-      rescue e
-        Logger.debug "Unable to verify token"
+    MainFiber.run do
+      get_db do |db|
+        begin
+          username = db.query_one "select username from users where " \
+                                  "token = (?)", token, as: String
+        rescue e
+          Logger.debug "Unable to verify token"
+        end
       end
     end
     username
@@ -125,12 +135,14 @@ class Storage
 
   def verify_admin(token)
     is_admin = false
-    get_db do |db|
-      begin
-        is_admin = db.query_one "select admin from users where " \
-                                "token = (?)", token, as: Bool
-      rescue e
-        Logger.debug "Unable to verify user as admin"
+    MainFiber.run do
+      get_db do |db|
+        begin
+          is_admin = db.query_one "select admin from users where " \
+                                  "token = (?)", token, as: Bool
+        rescue e
+          Logger.debug "Unable to verify user as admin"
+        end
       end
     end
     is_admin
@@ -138,10 +150,12 @@ class Storage
 
   def list_users
     results = Array(Tuple(String, Bool)).new
-    get_db do |db|
-      db.query "select username, admin from users" do |rs|
-        rs.each do
-          results << {rs.read(String), rs.read(Bool)}
+    MainFiber.run do
+      get_db do |db|
+        db.query "select username, admin from users" do |rs|
+          rs.each do
+            results << {rs.read(String), rs.read(Bool)}
+          end
         end
       end
     end
@@ -152,10 +166,12 @@ class Storage
     validate_username username
     validate_password password
     admin = (admin ? 1 : 0)
-    get_db do |db|
-      hash = hash_password password
-      db.exec "insert into users values (?, ?, ?, ?)",
-        username, hash, nil, admin
+    MainFiber.run do
+      get_db do |db|
+        hash = hash_password password
+        db.exec "insert into users values (?, ?, ?, ?)",
+          username, hash, nil, admin
+      end
     end
   end
 
@@ -163,40 +179,48 @@ class Storage
     admin = (admin ? 1 : 0)
     validate_username username
     validate_password password unless password.empty?
-    get_db do |db|
-      if password.empty?
-        db.exec "update users set username = (?), admin = (?) " \
-                "where username = (?)",
-          username, admin, original_username
-      else
-        hash = hash_password password
-        db.exec "update users set username = (?), admin = (?)," \
-                "password = (?) where username = (?)",
-          username, admin, hash, original_username
+    MainFiber.run do
+      get_db do |db|
+        if password.empty?
+          db.exec "update users set username = (?), admin = (?) " \
+                  "where username = (?)",
+            username, admin, original_username
+        else
+          hash = hash_password password
+          db.exec "update users set username = (?), admin = (?)," \
+                  "password = (?) where username = (?)",
+            username, admin, hash, original_username
+        end
       end
     end
   end
 
   def delete_user(username)
-    get_db do |db|
-      db.exec "delete from users where username = (?)", username
+    MainFiber.run do
+      get_db do |db|
+        db.exec "delete from users where username = (?)", username
+      end
     end
   end
 
   def logout(token)
-    get_db do |db|
-      begin
-        db.exec "update users set token = (?) where token = (?)", nil, token
-      rescue
+    MainFiber.run do
+      get_db do |db|
+        begin
+          db.exec "update users set token = (?) where token = (?)", nil, token
+        rescue
+        end
       end
     end
   end
 
   def get_id(path, is_title)
     id = nil
-    get_db do |db|
-      id = db.query_one? "select id from ids where path = (?)", path,
-        as: {String}
+    MainFiber.run do
+      get_db do |db|
+        id = db.query_one? "select id from ids where path = (?)", path,
+          as: {String}
+      end
     end
     id
   end
@@ -206,20 +230,24 @@ class Storage
   end
 
   def bulk_insert_ids
-    get_db do |db|
-      db.transaction do |tx|
-        @insert_ids.each do |tp|
-          tx.connection.exec "insert into ids values (?, ?, ?)", tp[:path],
-            tp[:id], tp[:is_title] ? 1 : 0
+    MainFiber.run do
+      get_db do |db|
+        db.transaction do |tx|
+          @insert_ids.each do |tp|
+            tx.connection.exec "insert into ids values (?, ?, ?)", tp[:path],
+              tp[:id], tp[:is_title] ? 1 : 0
+          end
         end
       end
+      @insert_ids.clear
     end
-    @insert_ids.clear
   end
 
   def close
-    unless @db.nil?
-      @db.not_nil!.close
+    MainFiber.run do
+      unless @db.nil?
+        @db.not_nil!.close
+      end
     end
   end
 

src/util/proxy.cr

@@ -0,0 +1,42 @@
+require "http_proxy"
+
+# Monkey-patch `HTTP::Client` to make it respect the `*_PROXY`
+#   environment variables
+module HTTP
+  class Client
+    private def self.exec(uri : URI, tls : TLSContext = nil)
+      Logger.debug "Using monkey-patched HTTP::Client"
+      previous_def uri, tls do |client, path|
+        client.set_proxy get_proxy uri
+        yield client, path
+      end
+    end
+  end
+end
+
+private def get_proxy(uri : URI) : HTTP::Proxy::Client?
+  no_proxy = ENV["no_proxy"]? || ENV["NO_PROXY"]?
+  return if no_proxy &&
+            no_proxy.split(",").any? &.== uri.hostname
+
+  case uri.scheme
+  when "http"
+    env_to_proxy "http_proxy"
+  when "https"
+    env_to_proxy "https_proxy"
+  else
+    nil
+  end
+end
+
+private def env_to_proxy(key : String) : HTTP::Proxy::Client?
+  val = ENV[key.downcase]? || ENV[key.upcase]?
+  return if val.nil?
+
+  begin
+    uri = URI.parse val
+    HTTP::Proxy::Client.new uri.hostname.not_nil!, uri.port.not_nil!
+  rescue
+    nil
+  end
+end

src/views/layout.html.ecr

@@ -67,10 +67,13 @@
     </div>
     <div class="uk-section uk-section-small">
     </div>
-    <div class="uk-section uk-section-small">
+    <div class="uk-section uk-section-small" id="main-section">
       <div class="uk-container uk-container-small">
         <div id="alert"></div>
         <%= content %>
+        <div class="uk-visible@m" id="totop-wrapper" x-data="{}" x-show="$('body').height() > 1.5 * $(window).height()">
+          <a href="#" uk-totop uk-scroll></a>
+        </div>
       </div>
     </div>
     <script>