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up2s3.py
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up2s3.py
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# -*- coding: utf-8 -*-
"""
up2s3
~~~~~
Save uploaded pictures in AWS S3.
:copyright: (c) 2021 by Hiroshi.tao.
:license: Apache 2.0, see LICENSE for more details.
"""
__version__ = "0.1.0"
__author__ = "staugur <me@tcw.im>"
__hookname__ = "up2s3"
__description__ = "将图片保存到S3"
__catalog__ = "upload"
from flask import g
from io import BytesIO
from posixpath import join
from mimetypes import guess_type
from boto3.session import Session
from boto3.exceptions import Boto3Error
from utils._compat import string_types
from utils.web import set_site_config
from utils.tool import slash_join
intpl_localhooksetting = """
<div class="layui-col-xs12 layui-col-sm12 layui-col-md6">
<fieldset
class="layui-elem-field layui-field-title"
style="margin-bottom: auto"
>
<legend>
AWS S3（{% if "up2s3" in g.site.upload_includes %}使用中{% else
%}未使用{% endif %}）
</legend>
<div class="layui-field-box">
<div class="layui-form-item">
<label class="layui-form-label"
><b style="color: red">*</b> Bucket</label
>
<div class="layui-input-block">
<input
type="text"
name="s3_bucket"
value="{{ g.site.s3_bucket }}"
placeholder="S3服务的存储桶名称"
autocomplete="off"
class="layui-input"
/>
</div>
</div>
<div class="layui-form-item">
<label class="layui-form-label"
><b style="color: red">*</b> AccessKey</label
>
<div class="layui-input-block">
<input
type="text"
name="s3_ak"
value="{{ g.site.s3_ak }}"
placeholder="AWS访问密钥ID"
autocomplete="off"
class="layui-input"
/>
</div>
</div>
<div class="layui-form-item">
<label class="layui-form-label"
><b style="color: red">*</b> SecretKey</label
>
<div class="layui-input-block">
<input
type="password"
name="s3_sk"
value="{{ g.site.s3_sk }}"
placeholder="AWS访问密钥密码"
autocomplete="off"
class="layui-input"
/>
</div>
</div>
<div class="layui-form-item">
<label class="layui-form-label">自定义域名</label>
<div class="layui-input-block">
<input
type="url"
name="s3_dn"
value="{{ g.site.s3_dn }}"
placeholder="S3服务绑定的自定义域名"
autocomplete="off"
class="layui-input"
/>
</div>
</div>
<div class="layui-form-item">
<label class="layui-form-label">存储根目录</label>
<div class="layui-input-block">
<input
type="text"
name="s3_basedir"
value="{{ g.site.s3_basedir }}"
placeholder="图片存储到S3的基础目录，默认是根目录"
autocomplete="off"
class="layui-input"
/>
</div>
</div>
</div>
</fieldset>
</div>
"""
def get_session(region_name=None):
ak = g.cfg.s3_ak
sk = g.cfg.s3_sk
region = g.cfg.s3_region or region_name
return Session(
aws_access_key_id=ak,
aws_secret_access_key=sk,
region_name=region,
)
def upimg_save(**kwargs):
res = dict(code=1)
try:
filename = kwargs["filename"]
stream = kwargs["stream"]
upload_path = kwargs.get("upload_path") or ""
if not filename or not stream:
return ValueError
except (KeyError, ValueError):
res.update(msg="Parameter error")
else:
bucket = g.cfg.s3_bucket
ak = g.cfg.s3_ak
sk = g.cfg.s3_sk
dn = g.cfg.s3_dn
s3_basedir = g.cfg.s3_basedir or ""
if not bucket or not ak or not sk:
res.update(msg="The s3 parameter error")
return res
errmsg = "An unknown error occurred in the program"
if isinstance(upload_path, string_types):
if upload_path.startswith("/"):
upload_path = upload_path.lstrip("/")
if s3_basedir.startswith("/"):
s3_basedir = s3_basedir.lstrip("/")
filepath = join(s3_basedir, upload_path, filename)
#: 使用AWS官方SDK上传
session = get_session()
region = g.cfg.s3_region
if not region:
try:
info = session.client("s3").get_bucket_location(
Bucket=bucket,
)
if "LocationConstraint" not in info:
raise ValueError
except (Boto3Error, ValueError) as e:
res.update(code=500, msg=str(e) or errmsg)
return res
else:
region = info["LocationConstraint"]
session = get_session(region)
set_site_config(dict(s3_region=region))
s3 = session.resource("s3").Bucket(bucket)
try:
mime_type, _ = guess_type(filename)
s3.upload_fileobj(
BytesIO(stream),
filepath,
ExtraArgs=dict(ACL="public-read", ContentType=mime_type),
)
except Boto3Error as e:
res.update(code=500, msg=str(e) or errmsg)
else:
src = "https://{}.s3.{}.amazonaws.com/{}".format(
bucket, region, filepath
)
if dn:
src = slash_join(dn, filepath)
res.update(
code=0,
src=src,
basedir=s3_basedir,
)
else:
res.update(msg="The upload_path type error")
return res
def upimg_delete(sha, upload_path, filename, basedir, save_result):
s3_basedir = g.cfg.s3_basedir or ""
filepath = join(basedir or s3_basedir, upload_path, filename)
session = get_session()
s3 = session.resource("s3").Bucket(g.cfg.s3_bucket)
s3.Object(filepath).delete()