mirror of
https://framagit.org/bortzmeyer/echoping
synced 2024-11-05 06:00:37 +00:00
117 lines
3.2 KiB
C
117 lines
3.2 KiB
C
/* $Id$ */
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#include "echoping.h"
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#ifdef HTTP
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#include "HTParse.h"
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char big_recvline[MAXTOREAD];
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char *
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make_http_sendline (char *url, char *host, int port, int nocache)
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{
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short sport = (short) port;
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int size = 200; /* Enough? */
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char *sendline = (char *) malloc (size);
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char *hostname = (char *) malloc (size);
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char *cache_directive = "";
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#ifdef HTTP10
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if (nocache)
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cache_directive = "Pragma: no-cache\r\n"; /* RFC 1945, "Hypertext
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Transfer Protocol --
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HTTP/1.0" */
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sprintf (sendline,
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"GET %s HTTP/1.0\r\nUser-Agent: Echoping/%s\r\n%s\r\n",
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url, VERSION, cache_directive);
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#else
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if (nocache)
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{
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if (nocache == 1)
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cache_directive = "Cache-control: max-age=0\r\n"; /* Simply force a
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recheck with the
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server */
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else
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cache_directive = "Cache-control: no-cache\r\n"; /* RFC 2616
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"Hypertext
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Transfer
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Protocol --
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HTTP/1.1" */
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}
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strcpy (hostname, HTParse (url, "", PARSE_HOST));
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if (!strcmp (hostname, ""))
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sprintf (hostname, "%s:%d", host, sport);
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sprintf (sendline,
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"GET %s HTTP/1.1\r\nUser-Agent: Echoping/%s\r\nHost: %s\r\nConnection: close\r\n%s\r\n",
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url, VERSION, hostname, cache_directive);
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free (hostname);
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#endif
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return sendline;
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}
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int
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read_from_server (CHANNEL fs, short ssl)
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{
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int nr;
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int total = 0;
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char reply_code;
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int first_line = TRUE;
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short body = FALSE;
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#ifdef OPENSSL
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int sslcode;
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#endif
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while (!body)
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{
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if (!ssl)
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nr = readline (fs.fs, big_recvline, MAXTOREAD, TRUE);
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#ifdef OPENSSL
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else {
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nr = SSL_readline (fs.ssl, big_recvline, MAXTOREAD, TRUE);
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if (nr == -1) {
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sslcode = ERR_get_error ();
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err_ret ("SSL_readline error: %s",
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ERR_error_string (sslcode, NULL));
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}
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}
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#endif
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/* printf ("DEBUG: reading \"%s\"\n (%d chars)\n", big_recvline, nr); */
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/* HTTP replies should be separated by CR-LF. Unfortunately, some
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servers send only CR :-( */
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body = ((nr == 2) || (nr == 1)); /* Empty line CR-LF seen */
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if ((nr < 1) && (errno == EINTR)) /* Probably a timeout */
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return -1;
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if (nr < 1)
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/* SourceForge bug #109385 */
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/* err_sys ("Error reading HTTP header"); */
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return -1;
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/* if ((int) big_recvline[nr-1] == 10)
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nr--; */
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if (first_line)
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{
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reply_code = big_recvline[9]; /* 9 because "HTTP/1.x 200..." */
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if (reply_code != '2') /* Status codes beginning with 3 are not errors
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but should never appear in reply to echoping's requests */
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err_quit ("HTTP error \"%s\"", big_recvline);
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}
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total = total + nr;
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first_line = FALSE;
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}
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/* Read the body */
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if (!ssl)
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nr = readline (fs.fs, big_recvline, MAXTOREAD, FALSE);
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#ifdef OPENSSL
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else
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nr = SSL_readline (fs.ssl, big_recvline, MAXTOREAD, FALSE);
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#endif
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/* printf ("DEBUG: reading body \"%s\"\n (%d chars)\n", big_recvline, nr); */
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if ((nr < 2) && (errno == EINTR)) /* Probably a timeout */
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return -1;
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if (nr < 2) /* Hmm, if the body is empty, we'll
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get a meaningless error message */
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err_sys ("Error reading HTTP body");
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total = total + nr;
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return total; /* How to do if we want only the body's size? */
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}
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#endif /* HTTP */
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