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POCurl loses body when a POST redirected from http to https
 

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  1. POCurl loses body when a POST redirected from http to https
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    <p>I'm trying to use curl 7.23.1 to POST some data to my server (which runs an <code>nginx</code> server). When this <code>nginx</code> is queried using <code>http://</code>, it redirects to <code>https://</code> if it can (if it has keys and all the mambo-jumbo)</p> <p>It looks like curl is doing something... odd. For compatibility reasons, my script (the thing that runs <code>curl</code>) is sending its requests to <code>http://</code>, but when it hits a server that has <code>https://</code> available (and therefore, gets redirected), the body in the <code>POST</code> request disappears. </p> <p>I'm trying to upload a bunch of text using <a href="http://curl.haxx.se/docs/manpage.html#--data-urlencode" rel="nofollow">--data-urlencode name@filename</a> option. Basically, I run an script, dump its output in the file <code>/tmp/checkin/cmd_result</code>, and I want to upload that as the "data" attribute of the request:</p> <pre><code>curl --max-time 30 --silent --location-trusted \ --insecure --write-out "%{http_code}" --request POST \ --data-urlencode "data@/tmp/checkin/cmd_result" \ "http:/myserver/command_reply?command_id=524729ce93bc63292c1c9831" \ --trace-ascii /tmp/command_response_trace.log \ --output /tmp/checkin/cmd_res_resp --connect-timeout 10 </code></pre> <p>But the redirection seems to strip the body. If I send my data directly to <code>https://</code>, everything works like a charm. Adding <code>-L</code> (<code>--location</code>) or <code>--location-trusted</code> to the curl instruction doesn't seem to fix the issue.</p> <p>Has someone experienced the same issue? Any help will be deeply appreciated.</p> <p>PS:</p> <p>This is the trace <code>curl</code> outputs (I've cleaned it a bit):</p> <pre><code>=&gt; Send header, 300 bytes (0x12c) 0000: POST /command_reply?&amp;command_id=52 0040: 4729ce93bc63292c1c9831 HTTP/1.1 0061: User-Agent: curl/7.23.1 (mips-openwrt-linux-gnu) libcurl/7.23.1 00a1: OpenSSL/1.0.1c zlib/1.2.7 00e4: Content-Length: 356 00f9: Content-Type: application/x-www-form-urlencoded 012a: =&gt; Send data, 356 bytes (0x164) 0000: data=PING%20google.coms%0A &lt;= Recv header, 32 bytes (0x20) 0000: HTTP/1.1 302 Moved Temporarily &lt;= Recv header, 22 bytes (0x16) 0000: Server: nginx/1.1.19 &lt;= Recv header, 37 bytes (0x25) 0000: Date: Sat, 28 Sep 2013 19:11:27 GMT &lt;= Recv header, 25 bytes (0x19) 0000: Content-Type: text/html &lt;= Recv header, 21 bytes (0x15) 0000: Content-Length: 161 &lt;= Recv header, 24 bytes (0x18) 0000: Connection: keep-alive &lt;= Recv header, 120 bytes (0x78) 0000: Location: https://myserver/sensor/command_reply?command_id 0040: =524729ce93bc63292c1c9831 &lt;= Recv header, 2 bytes (0x2) 0000: &lt;= Recv data, 161 bytes (0xa1) 0000: &lt;html&gt; 0008: &lt;head&gt;&lt;title&gt;302 Found&lt;/title&gt;&lt;/head&gt; 002f: &lt;body bgcolor="white"&gt; 0047: &lt;center&gt;&lt;h1&gt;302 Found&lt;/h1&gt;&lt;/center&gt; 006c: &lt;hr&gt;&lt;center&gt;nginx/1.1.19&lt;/center&gt; 008f: &lt;/body&gt; 0098: &lt;/html&gt; == Info: SSLv3, TLS handshake, Client hello (1): =&gt; Send SSL data, 189 bytes (0xbd) 0000: ..... == Info: SSLv3, TLS handshake, Server hello (2): &lt;= Recv SSL data, 90 bytes (0x5a) 0000: ..... == Info: SSLv3, TLS handshake, CERT (11): &lt;= Recv SSL data, 3227 bytes (0xc9b) 0000: .....?. == Info: SSLv3, TLS handshake, Server key exchange (12): &lt;= Recv SSL data, 525 bytes (0x20d) 0000: .^~... == Info: SSLv3, TLS handshake, Server finished (14): &lt;= Recv SSL data, 4 bytes (0x4) 0000: .... == Info: SSLv3, TLS handshake, Client key exchange (16): =&gt; Send SSL data, 134 bytes (0x86) 0000: ...' == Info: SSLv3, TLS change cipher, Client hello (1): =&gt; Send SSL data, 1 bytes (0x1) 0000: . == Info: SSLv3, TLS handshake, Finished (20): =&gt; Send SSL data, 16 bytes (0x10) 0000: .... == Info: SSLv3, TLS change cipher, Client hello (1): &lt;= Recv SSL data, 1 bytes (0x1) 0000: . == Info: SSLv3, TLS handshake, Finished (20): &lt;= Recv SSL data, 16 bytes (0x10) 0000: ... =&gt; Send header, 230 bytes (0xe6) 0000: POST /sensor/command_reply?command_id=52 0040: 4729ce93bc63292c1c9831 HTTP/1.1 0061: User-Agent: curl/7.23.1 (mips-openwrt-linux-gnu) libcurl/7.23.1 00a1: OpenSSL/1.0.1c zlib/1.2.7 00bc: Host: myserver 00d7: Accept: */* 00e4: &lt;= Recv header, 17 bytes (0x11) 0000: HTTP/1.1 200 OK &lt;= Recv header, 22 bytes (0x16) 0000: Server: nginx/1.1.19 &lt;= Recv header, 37 bytes (0x25) 0000: Date: Sat, 28 Sep 2013 19:11:27 GMT &lt;= Recv header, 47 bytes (0x2f) 0000: Content-Type: application/json; charset=UTF-8 &lt;= Recv header, 20 bytes (0x14) 0000: Content-Length: 22 &lt;= Recv header, 24 bytes (0x18) 0000: Connection: keep-alive &lt;= Recv header, 2 bytes (0x2) 0000: &lt;= Recv data, 22 bytes (0x16) 0000: {"r": 200, "data": {}} == Info: SSLv3, TLS alert, Client hello (1): =&gt; Send SSL data, 2 bytes (0x2) 0000: .. </code></pre>
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