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request.c
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request.c
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#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "request.h"
#include "chibiWebDefs.h"
Request *request_new() {
Request *r = (Request *) malloc (sizeof(Request));
if (r == NULL) return NULL;
r->version = NULL;
r->type = REQUEST_NULL;
r->path = NULL;
r->param = NULL;
r->body = NULL;
r->headers = tsq_create();
return r;
}
void request_free(Request *r) {
if (r == NULL) return;
/* Free parameter list */
Param *p, *q;
p = r->param;
while (p != NULL) {
q = p;
p = q->next;
free(q);
}
tsq_destroy(r->headers, NULL);
/* Free rest of struct */
free(r);
}
void request_addParam(Request *r, Param *p) {
if (r->param == NULL) r->param = p;
else {
Param *np = r->param;
while (np->next != NULL) np = np->next;
np->next = p;
}
}
Request *request_parse(char *request) {
int pathLen = 0;
char *paramStr;
Request *r = request_new();
if (r == NULL) return NULL;
r->buf = request;
printf("%s\n", r->buf);
/* Save pointers for strtok_r */
char *hdrsave, *urlsave, *querysave, *http_type;
/* Get request type (GET, POST) */
http_type = strtok_r(r->buf, " ", &hdrsave);
printf("-----------------------\n");
printf("Request:%s\n", http_type);
if (strncmp(http_type, "GET", 3) == 0) {
r->type = REQUEST_GET;
}
else if (strncmp(http_type, "POST", 4) == 0) {
r->type = REQUEST_POST;
}
if (r->type == REQUEST_NULL) {
printf("We only accept GET/POST\n");
request_free(r);
return NULL;
}
/* Get request URL */
r->path = strtok_r(NULL, " ", &hdrsave);
printf("PATH: %i: %s\n", pathLen, r->path);
r->version = strtok_r(NULL, "\n", &hdrsave);
printf("VERSION: %s\n", r->version);
Param *p;
char *hdr, *save;
hdr = strtok_r(NULL, "\n", &hdrsave);;
do {
p = (Param *) malloc(sizeof(Param));
if (p == NULL) {
request_free(r);
return NULL;
}
/* Key, value pairs are split by : */
p->key = strtok_r(hdr, ":", &save);
p->value = save;
p->next = NULL;
printf("HEADER: %s:%s\n", p->key, p->value);
/* Add to param list */
tsq_put(r->headers, p);
} while((hdr = strtok_r(NULL, "\n", &hdrsave)) && *hdr != '\r'); /* Next param */
r->body= hdrsave;
printf("BODY: %s\n", r->body);
/* Chop off parameters, finishing path */
char *url = strtok_r(r->path, "?", &urlsave);
printf("params -> %s\n", url);
paramStr = strtok_r(NULL, " ", &urlsave);
paramStr = paramStr ? paramStr : r->body;
if (paramStr) {
r->paramStr = strdup(paramStr);
r->path = url;
/* Get query param half */
printf("ParamStr: %s\n", r->paramStr);
printf("Params:\n");
/* Do we have more than one? (Split by &) */
char *q = strtok_r(r->paramStr, "&", &urlsave);
if (q == NULL) q = r->paramStr;
/* Retrieve params */
Param *p, *lastP;
do {
p = (Param *) malloc(sizeof(Param));
if (p == NULL) {
request_free(r);
return NULL;
}
/* Key, value pairs are split by = */
p->key = strtok_r(q, "=", &querysave);
p->value = strtok_r(NULL, "=", &querysave);
p->next = NULL;
printf("\t%s: %s\n", p->key, p->value);
/* Add to param list */
if (r->param == NULL) r->param = p;
else lastP->next = p;
lastP = p; /* Used for next iteration, makes insertion O(1) */
} while((q = strtok_r(NULL, "&", &urlsave))); /* Next param */
}
pathLen = strlen(r->path);
r->root = strdup(r->path);
strtok_r(r->root + 1, "/", &urlsave);
r->file = urlsave;
printf("Root: %s\nFile: %s\n", r->root, urlsave);
/* Remove trailing forward-slash (/) */
if (pathLen > 1 && r->path[pathLen - 1] == '/') r->path[pathLen - 1] = '\0';
printf("PATH(%i): %s\n", pathLen, r->path);
return r;
}