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Apply cache on page, cover api

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Get image data and use it for hashing
This commit is contained in:
Leeingnyo 2021-08-15 20:21:36 +09:00
parent cd8944ed2d
commit 25b90a8724
1 changed files with 20 additions and 2 deletions
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22
src/routes/api.cr
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@ -1,6 +1,7 @@
require "../mangadex/*" require "../mangadex/*"
require "../upload" require "../upload"
require "koa" require "koa"
require "digest"
struct APIRouter struct APIRouter
@@api_json : String? @@api_json : String?
@ -81,6 +82,7 @@ struct APIRouter
tid = env.params.url["tid"] tid = env.params.url["tid"]
eid = env.params.url["eid"] eid = env.params.url["eid"]
page = env.params.url["page"].to_i page = env.params.url["page"].to_i
prev_e_tag = env.request.headers["If-None-Match"]?
title = Library.default.get_title tid title = Library.default.get_title tid
raise "Title ID `#{tid}` not found" if title.nil? raise "Title ID `#{tid}` not found" if title.nil?
@ -90,7 +92,14 @@ struct APIRouter
raise "Failed to load page #{page} of " \ raise "Failed to load page #{page} of " \
"`#{title.title}/#{entry.title}`" if img.nil? "`#{title.title}/#{entry.title}`" if img.nil?
send_img env, img e_tag = Digest::SHA1.hexdigest img.data
if prev_e_tag == e_tag
env.response.status_code = 304
""
else
env.response.headers["ETag"] = e_tag
send_img env, img
end
rescue e rescue e
Logger.error e Logger.error e
env.response.status_code = 500 env.response.status_code = 500
@ -102,12 +111,14 @@ struct APIRouter
Koa.path "tid", desc: "Title ID" Koa.path "tid", desc: "Title ID"
Koa.path "eid", desc: "Entry ID" Koa.path "eid", desc: "Entry ID"
Koa.response 200, schema: Bytes, media_type: "image/*" Koa.response 200, schema: Bytes, media_type: "image/*"
Koa.response 304, ""
Koa.response 500, "Page not found or not readable" Koa.response 500, "Page not found or not readable"
Koa.tag "library" Koa.tag "library"
get "/api/cover/:tid/:eid" do |env| get "/api/cover/:tid/:eid" do |env|
begin begin
tid = env.params.url["tid"] tid = env.params.url["tid"]
eid = env.params.url["eid"] eid = env.params.url["eid"]
prev_e_tag = env.request.headers["If-None-Match"]?
title = Library.default.get_title tid title = Library.default.get_title tid
raise "Title ID `#{tid}` not found" if title.nil? raise "Title ID `#{tid}` not found" if title.nil?
@ -118,7 +129,14 @@ struct APIRouter
raise "Failed to get cover of `#{title.title}/#{entry.title}`" \ raise "Failed to get cover of `#{title.title}/#{entry.title}`" \
if img.nil? if img.nil?
send_img env, img e_tag = Digest::SHA1.hexdigest img.data
if prev_e_tag == e_tag
env.response.status_code = 304
""
else
env.response.headers["ETag"] = e_tag
send_img env, img
end
rescue e rescue e
Logger.error e Logger.error e
env.response.status_code = 500 env.response.status_code = 500