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** Fossil is run as a service.
*/
#include "config.h"
#include "robot.h"
#include <assert.h>
#include <time.h>
#define POW_COOKIE "fossil-proofofwork"
/*
** Rewrite the current page with a robot squelch captcha and return 1.
**
** Or, if valid proof-of-work is present as either a query parameter or
** as a cookie, then return 0.
*/
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** Fossil is run as a service.
*/
#include "config.h"
#include "robot.h"
#include <assert.h>
#include <time.h>
/*
** The name of the cookie used to demonstrate that the client has been
** tested and is believed to be operated by a human, not by a robot.
*/
#if INTERFACE
#define ROBOT_COOKIE "fossil-client-ok"
#endif
/*
** Rewrite the current page with a robot squelch captcha and return 1.
**
** Or, if valid proof-of-work is present as either a query parameter or
** as a cookie, then return 0.
*/
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}
h1 = (h1 % 900000000) + 100000000;
h2 = (h2 % 900000000) + 100000000;
/* If there is already a proof-of-work cookie with this value
** that means that the user agent has already authenticated.
*/
z = P(POW_COOKIE);
if( z
&& (atoi(z)==h1 || atoi(z)==h2)
&& !cgi_is_qp(POW_COOKIE) ){
return 0;
}
/* Check for a proof query parameter. If found, that means that
** the captcha has just now passed, so set the proof-of-work cookie
** in addition to letting the request through.
*/
z = P("proof");
if( z
&& (atoi(z)==h1 || atoi(z)==h2)
){
cgi_set_cookie(POW_COOKIE,z,"/",900);
return 0;
}
cgi_tag_query_parameter("proof");
/* Ask the client to present proof-of-work */
cgi_reset_content();
cgi_set_content_type("text/html");
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}
h1 = (h1 % 900000000) + 100000000;
h2 = (h2 % 900000000) + 100000000;
/* If there is already a proof-of-work cookie with this value
** that means that the user agent has already authenticated.
*/
z = P(ROBOT_COOKIE);
if( z
&& (atoi(z)==h1 || atoi(z)==h2)
&& !cgi_is_qp(ROBOT_COOKIE) ){
return 0;
}
/* Check for a proof query parameter. If found, that means that
** the captcha has just now passed, so set the proof-of-work cookie
** in addition to letting the request through.
*/
z = P("proof");
if( z
&& (atoi(z)==h1 || atoi(z)==h2)
){
cgi_set_cookie(ROBOT_COOKIE,z,"/",900);
return 0;
}
cgi_tag_query_parameter("proof");
/* Ask the client to present proof-of-work */
cgi_reset_content();
cgi_set_content_type("text/html");
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** Whenever this page is successfully rendered (when it doesn't go to
** the captcha) it deletes the proof-of-work cookie. So reloading the
** page will reset the cookie and restart the verification.
*/
void robot_restrict_test_page(void){
const char *zName = P("name");
const char *zP1 = P("proof");
const char *zP2 = P(POW_COOKIE);
const char *z;
if( zName==0 || zName[0]==0 ) zName = g.zPath;
login_check_credentials();
if( g.zLogin==0 ){ login_needed(1); return; }
g.zLogin = 0;
if( robot_restrict(zName) ) return;
style_set_current_feature("test");
style_header("robot_restrict() test");
@ <h1>Captcha passed</h1>
@
@ <p>
if( zP1 && zP1[0] ){
@ proof=%h(zP1)<br>
}
if( zP2 && zP2[0] ){
@ fossil_proofofwork=%h(zP2)<br>
cgi_set_cookie(POW_COOKIE,"",0,-1);
}
z = db_get("robot-restrict",robot_restrict_default());
if( z && z[0] ){
@ robot-restrict=%h(z)</br>
}
@ </p>
@ <p><a href="%R/test-robotck/%h(zName)">Retry</a>
style_finish_page();
}
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** Whenever this page is successfully rendered (when it doesn't go to
** the captcha) it deletes the proof-of-work cookie. So reloading the
** page will reset the cookie and restart the verification.
*/
void robot_restrict_test_page(void){
const char *zName = P("name");
const char *zP1 = P("proof");
const char *zP2 = P(ROBOT_COOKIE);
const char *z;
if( zName==0 || zName[0]==0 ) zName = g.zPath;
login_check_credentials();
if( g.zLogin==0 ){ login_needed(1); return; }
g.zLogin = 0;
if( robot_restrict(zName) ) return;
style_set_current_feature("test");
style_header("robot_restrict() test");
@ <h1>Captcha passed</h1>
@
@ <p>
if( zP1 && zP1[0] ){
@ proof=%h(zP1)<br>
}
if( zP2 && zP2[0] ){
@ %h(ROBOT_COOKIE)=%h(zP2)<br>
cgi_set_cookie(ROBOT_COOKIE,"",0,-1);
}
z = db_get("robot-restrict",robot_restrict_default());
if( z && z[0] ){
@ robot-restrict=%h(z)</br>
}
@ </p>
@ <p><a href="%R/test-robotck/%h(zName)">Retry</a>
style_finish_page();
}
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