xdfcgi/main.c

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C
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#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <string.h>
#include <sqlite3.h>
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inline char *get_filename(const char c) {
char *qout;
switch(c) {
default:
qout = "queries/mranks.sql";
break;
case 'm':
qout = "queries/mleaderboard-ojoin.sql";
break;
case 'p':
qout = "queries/rplayers.sql";
break;
case 't':
qout = "queries/test.txt";
break;
}
return qout;
}
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inline void print_tblheader(const char *c) {
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char *out;
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switch (*c) {
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default:
out = "<TABLE class='center'>\
<TH class='tablename' COLSPAN='4'> <H3><BR>Map List</H3> </TH>\
<TR>\
<TH class='columnname'>Name</TH>\
<TH class='columnname'>Records</TH>\
<TH class='columnname'>Best Time</TH>\
<TH class='columnname'>Held By</TH>\
</TR>";
break;
case 'm':
out = "<TABLE class='center'>\
<TH class='tablename' COLSPAN='3'><H3><BR>Leaderboard</H3></TH>\
<TR>\
<TH class='columnname'>Rank</TH>\
<TH class='columnname'>Name</TH>\
<TH class='columnname'>Time</TH>\
</TR>";
break;
case 'p':
out = "<TABLE class='center'>\
<TH class='tablename' COLSPAN='3'> <H3><BR>Ranks</H3> </TH>\
<TR>\
<TH class='columnname'>Name</TH>\
<TH class='columnname'>Map</TH>\
<TH class='columnname'>Rank</TH>\
</TR>";
break;
}
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printf("%s", out);
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}
//display and format the results of the query.
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void qresult(sqlite3_stmt *sp, const char *c) {
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int e;
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unsigned int i;
unsigned int cc = sqlite3_column_count(sp);
print_tblheader(c);
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while ((e = sqlite3_step(sp)) == SQLITE_ROW) {
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printf("<TR>");
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for (i = 0; i < cc; i++) {
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printf("<TD>%s</TD>", sqlite3_column_text(sp, i));
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}
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printf("</TR>");
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}
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printf("</TABLE>");
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}
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bool executequery(const char *sql, const char *str) {
const char *p = strchr(str, '=') + 1;
const char qc = str[0];
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sqlite3 *db;
char *error;
int con = sqlite3_open("db/cts.db", &db);
if (con != SQLITE_OK) {
fprintf(stderr, "Can not open database: %s\n", sqlite3_errmsg(db));
return false;
}
sqlite3_stmt *s;
// prepare sql to s, reading until null character.
con = sqlite3_prepare_v2(db, sql, -1, &s, NULL);
if (con != SQLITE_OK) {
fprintf(stderr, "Could not prepare SQL statement: %s\n", sqlite3_errmsg(db));
return false;
}
// bind parameter with a string length that is the # of bytes to null char.
con = sqlite3_bind_text(s, 1, p, -1, NULL);
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qresult(s, &qc);
sqlite3_finalize(s);
sqlite3_close(db);
return true;
}
// both allocates and frees memory used up by the string..
// containing the data from query files.
void getquery(const char *qs) {
char *qf, *qp;
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char *fname = get_filename(qs[0]);
if (fname != NULL) {
FILE *f = fopen(fname, "r");
if (f != NULL && qf != NULL) {
// change from fseek/SEEK_END when sql queries are >2 GB in size.
fseek(f, 0, SEEK_END); // go to the end of file
unsigned int size = ftell(f);
qf = calloc(size, sizeof(char));
if (qf != NULL) {
fseek(f, 0, SEEK_SET); // go to the start of file
fread(qf, sizeof(char), size, f);
}
}
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fclose(f);
}
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qp = strchr(qs, '=') + 1;
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executequery(qf, qs);
free(qf);
}
void html(void) {
const char *html_top = "Content-Type: text/html\n\n\
<html><head><meta content=\"text/html; charset=UTF-8\" />\
<link rel=\"stylesheet\" type=\"text/css\" href=\"page.css\">\
<title>/v/ - Xonotic</title>\
<p class='hidden'>:-) / nice one<br></p>";
const char *html_bot = "<br><br><p classname='footer'>Pages under construction.<br>\
Service may sporadically become unavailable.<br>\
In-game database is not directly synced with this web server.\
</p>\
</body></html>";
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printf("%s", html_top);
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// getquery(getenv("QUERY_STRING"));
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getquery("map=pornstar-kaine");
printf("%s", html_bot);
}
int main(void) {
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html();
// getquery("player=duHTyaSGpdTk7oebwPFoo899xPoTwP9bja4DUjCjTLo=");
}