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AkamaiGlobalHostのファイルはブラウザを使用してダウンロードできますが、カールは使用できません。

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AkamaiGlobalHostのファイルはブラウザを使用してダウンロードできますが、カールは使用できません。

ブラウザ（firefoxとwaterfox）から次のファイルをダウンロードすると、https://launcher-public-service-prod06.ol.epicgames.com/launcher/api/installer/download/EpicGamesLauncherInstaller.msi?productName=unrealengine.itがリダイレクトされ、https://epicgames-download1.akamaized.net/Builds/UnrealEngineLauncher/Installers/Win32/EpicInstaller-7.14.2.msi?launcherfilename=EpicInstaller-7.14.2-unrealengine.msiファイルがダウンロードされます。

ただし、カールを使用してファイルをダウンロードできるようにFirefoxからカールコマンドをコピーすると、ホストAkamaiGHostから403 Forbiddenが受信されます。ダウンロードマネージャプログラムを使用してもダウンロードできません。

これは私がコピーしたカールリクエストです（firefox devtoolsから）：

curl "https://launcher-public-service-prod06.ol.epicgames.com/launcher/api/installer/download/EpicGamesLauncherInstaller.msi?productName=unrealengine" -H "User-Agent: Mozilla/5.0 (Windows NT 6.3; Win64; x64; rv:61.0) Gecko/20100101 Firefox/61.0" -H "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8" -H "Accept-Language: en-US,en;q=0.5" --compressed -H "DNT: 1" -H "Connection: keep-alive" -H "Upgrade-Insecure-Requests: 1"

--verbose および --location (リダイレクトを許可) を有効にすると、カールから次のような出力が得られます。

* STATE: INIT => CONNECT handle 0x6000574d8; line 1407 (connection #-5000)
* Added connection 0. The cache now contains 1 members
* STATE: CONNECT => WAITRESOLVE handle 0x6000574d8; line 1443 (connection #0)
*   Trying 35.169.251.130...
* TCP_NODELAY set
* STATE: WAITRESOLVE => WAITCONNECT handle 0x6000574d8; line 1524 (connection #0)
* Connected to launcher-public-service-prod06.ol.epicgames.com (35.169.251.130) port 443 (#0)
* STATE: WAITCONNECT => SENDPROTOCONNECT handle 0x6000574d8; line 1576 (connection #0)
* Marked for [keep alive]: HTTP default
* ALPN, offering h2
* ALPN, offering http/1.1
* Cipher selection: ALL:!EXPORT:!EXPORT40:!EXPORT56:!aNULL:!LOW:!RC4:@STRENGTH
* successfully set certificate verify locations:
*   CAfile: /usr/ssl/certs/ca-bundle.crt
  CApath: none
* TLSv1.2 (OUT), TLS header, Certificate Status (22):
* TLSv1.2 (OUT), TLS handshake, Client hello (1):
* STATE: SENDPROTOCONNECT => PROTOCONNECT handle 0x6000574d8; line 1590 (connection #0)
* TLSv1.2 (IN), TLS handshake, Server hello (2):
* TLSv1.2 (IN), TLS handshake, Certificate (11):
* TLSv1.2 (IN), TLS handshake, Server key exchange (12):
* TLSv1.2 (IN), TLS handshake, Server finished (14):
* TLSv1.2 (OUT), TLS handshake, Client key exchange (16):
* TLSv1.2 (OUT), TLS change cipher, Client hello (1):
* TLSv1.2 (OUT), TLS handshake, Finished (20):
* TLSv1.2 (IN), TLS change cipher, Client hello (1):
* TLSv1.2 (IN), TLS handshake, Finished (20):
* SSL connection using TLSv1.2 / ECDHE-RSA-AES128-GCM-SHA256
* ALPN, server did not agree to a protocol
* Server certificate:
*  subject: CN=*.ol.epicgames.com
*  start date: Mar 12 00:00:00 2018 GMT
*  expire date: Apr 12 12:00:00 2019 GMT
*  subjectAltName: host "launcher-public-service-prod06.ol.epicgames.com" matched cert's "*.ol.epicgames.com"
*  issuer: C=US; O=Amazon; OU=Server CA 1B; CN=Amazon
*  SSL certificate verify ok.
* STATE: PROTOCONNECT => DO handle 0x6000574d8; line 1611 (connection #0)
> GET /launcher/api/installer/download/EpicGamesLauncherInstaller.msi?productName=unrealengine HTTP/1.1
> Host: launcher-public-service-prod06.ol.epicgames.com
> Accept-Encoding: deflate, gzip
> User-Agent: Mozilla/5.0 (Windows NT 6.3; Win64; x64; rv:61.0) Gecko/20100101 Firefox/61.0
> Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
> Accept-Language: en-US,en;q=0.5
> DNT: 1
> Connection: keep-alive
> Upgrade-Insecure-Requests: 1
>
* STATE: DO => DO_DONE handle 0x6000574d8; line 1673 (connection #0)
* STATE: DO_DONE => WAITPERFORM handle 0x6000574d8; line 1800 (connection #0)
* STATE: WAITPERFORM => PERFORM handle 0x6000574d8; line 1815 (connection #0)
* HTTP 1.1 or later with persistent connection, pipelining supported
< HTTP/1.1 303 See Other
< Date: Wed, 15 Aug 2018 00:31:34 GMT
< Location: https://epicgames-download1.akamaized.net/Builds/UnrealEngineLauncher/Installers/Win32/EpicInstaller-7.14.2.msi?launcherfilename=EpicInstaller-7.14.2-unrealengine.msi
< X-Epic-Correlation-ID: 8cf2e9aa-2945-43f3-8489-ed8c1b4f832b
< Content-Length: 0
< Connection: keep-alive
<
* multi_done
* Connection #0 to host launcher-public-service-prod06.ol.epicgames.com left intact
* Issue another request to this URL: 'https://epicgames-download1.akamaized.net/Builds/UnrealEngineLauncher/Installers/Win32/EpicInstaller-7.14.2.msi?launcherfilename=EpicInstaller-7.14.2-unrealengine.msi'
* STATE: PERFORM => CONNECT handle 0x6000574d8; line 1967 (connection #-5000)
* Added connection 1. The cache now contains 2 members
* STATE: CONNECT => WAITRESOLVE handle 0x6000574d8; line 1443 (connection #1)
*   Trying 88.221.14.25...
* TCP_NODELAY set
* STATE: WAITRESOLVE => WAITCONNECT handle 0x6000574d8; line 1524 (connection #1)
* Connected to epicgames-download1.akamaized.net (88.221.14.25) port 443 (#1)
* STATE: WAITCONNECT => SENDPROTOCONNECT handle 0x6000574d8; line 1576 (connection #1)
* Marked for [keep alive]: HTTP default
* ALPN, offering h2
* ALPN, offering http/1.1
* Cipher selection: ALL:!EXPORT:!EXPORT40:!EXPORT56:!aNULL:!LOW:!RC4:@STRENGTH
* successfully set certificate verify locations:
*   CAfile: /usr/ssl/certs/ca-bundle.crt
  CApath: none
* TLSv1.2 (OUT), TLS header, Certificate Status (22):
* TLSv1.2 (OUT), TLS handshake, Client hello (1):
* STATE: SENDPROTOCONNECT => PROTOCONNECT handle 0x6000574d8; line 1590 (connection #1)
* TLSv1.2 (IN), TLS handshake, Server hello (2):
* TLSv1.2 (IN), TLS handshake, Certificate (11):
* TLSv1.2 (IN), TLS handshake, Server key exchange (12):
* TLSv1.2 (IN), TLS handshake, Server finished (14):
* TLSv1.2 (OUT), TLS handshake, Client key exchange (16):
* TLSv1.2 (OUT), TLS change cipher, Client hello (1):
* TLSv1.2 (OUT), TLS handshake, Finished (20):
* TLSv1.2 (IN), TLS change cipher, Client hello (1):
* TLSv1.2 (IN), TLS handshake, Finished (20):
* SSL connection using TLSv1.2 / ECDHE-ECDSA-AES256-GCM-SHA384
* ALPN, server accepted to use http/1.1
* Server certificate:
*  subject: C=US; ST=Massachusetts; L=Cambridge; O=Akamai Technologies, Inc.; CN=a248.e.akamai.net
*  start date: Jan 23 00:00:00 2018 GMT
*  expire date: Jan 19 12:00:00 2019 GMT
*  subjectAltName: host "epicgames-download1.akamaized.net" matched cert's "*.akamaized.net"
*  issuer: C=US; O=DigiCert Inc; CN=DigiCert ECC Secure Server CA
*  SSL certificate verify ok.
* STATE: PROTOCONNECT => DO handle 0x6000574d8; line 1611 (connection #1)
> GET /Builds/UnrealEngineLauncher/Installers/Win32/EpicInstaller-7.14.2.msi?launcherfilename=EpicInstaller-7.14.2-unrealengine.msi HTTP/1.1
> Host: epicgames-download1.akamaized.net
> Accept-Encoding: deflate, gzip
> User-Agent: Mozilla/5.0 (Windows NT 6.3; Win64; x64; rv:61.0) Gecko/20100101 Firefox/61.0
> Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
> Accept-Language: en-US,en;q=0.5
> DNT: 1
> Connection: keep-alive
> Upgrade-Insecure-Requests: 1
>
* STATE: DO => DO_DONE handle 0x6000574d8; line 1673 (connection #1)
* STATE: DO_DONE => WAITPERFORM handle 0x6000574d8; line 1800 (connection #1)
* STATE: WAITPERFORM => PERFORM handle 0x6000574d8; line 1815 (connection #1)
* HTTP 1.1 or later with persistent connection, pipelining supported
< HTTP/1.1 403 Forbidden
* Server AkamaiGHost is not blacklisted
< Server: AkamaiGHost
< Mime-Version: 1.0
< Content-Type: text/html
< Content-Length: 391
< Expires: Wed, 15 Aug 2018 00:31:35 GMT
< Date: Wed, 15 Aug 2018 00:31:35 GMT
< Connection: keep-alive
< Content-Disposition: filename=EpicInstaller-7.14.2-unrealengine.msi
<
<HTML><HEAD>
<TITLE>Access Denied</TITLE>
</HEAD><BODY>
<H1>Access Denied</H1>

You don't have permission to access "http&#58;&#47;&#47;epicgames&#45;download1&#46;akamaized&#46;net&#47;Builds&#47;UnrealEngineLauncher&#47;Installers&#47;Win32&#47;EpicInstaller&#45;7&#46;14&#46;2&#46;msi&#63;" on this server.<P>
Reference&#32;&#35;18&#46;150edd58&#46;1534293095&#46;8f2cbe
</BODY>
</HTML>
* STATE: PERFORM => DONE handle 0x6000574d8; line 1986 (connection #1)
* multi_done
* Connection #1 to host epicgames-download1.akamaized.net left intact
* Expire cleared

何が間違っていますか？

答え1

curlなぜ動作しないのかよく分からないが、wget私には効果があった。

% wget \
    --header="Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8" \
    --header="Accept-Encoding: gzip, deflate, br" \
    --header="Accept-Language: en-US,en;q=0.9" \
    --header="Cache-Control: no-cache" \
    --header="Connection: keep-alive" \
    --header="Pragma: no-cache" \
    --header="Upgrade-Insecure-Requests: 1" \
    --header="User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.75 Safari/537.36" \
    "https://launcher-public-service-prod06.ol.epicgames.com/launcher/api/installer/download/EpicGamesLauncherInstaller.msi?productName=unrealengine"

% ls -l EpicGamesLauncherInstaller.msi\?productName=unrealengine
-rw-r--r-- 1 sweh sweh 33411072 Aug  8 08:55 EpicGamesLauncherInstaller.msi?productName=unrealengine

% file *msi*
EpicGamesLauncherInstaller.msi?productName=unrealengine: Composite Document File V2 Document, Little Endian, Os: Windows, Version 6.1, Code page: 1252, Title: Installation Database, Subject: Epic Games Launcher, Author: Epic Games, Inc., Keywords: Installer, Comments: This installer database contains the logic and data required to install Epic Games Launcher., Create Time/Date: Wed Aug  8 13:15:26 2018, Name of Creating Application: Windows Installer XML Toolset (3.8.1128.0), Security: 4, Template: Intel;1033,1042,1041,2052,1025,1031,1034,1036,1040,1045,1046,1049,1055, Last Saved By: Intel;1033,1042,1041,2052,1025,1031,1034,1036,1040,1045,1046,1049,1055, Revision Number: {2CF87DD4-2327-44B3-81B8-3E85B197848B}1.1.163.0;{3A945EBF-3302-4D14-ABE5-C11696582633}1.1.163.0;{D0769F44-D459-450F-B084-CAE38062C75B}, Number of Pages: 405, Number of Characters: 0

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