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Using list in http header

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This commit is contained in:
Lorenz Stechauner
2023-01-03 14:05:11 +01:00
parent a54a6af497
commit e82869e993
5 changed files with 35 additions and 27 deletions
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45
src/lib/http.c
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@ -10,6 +10,7 @@
#include "http.h"
#include "utils.h"
#include "compress.h"
#include "list.h"
#include <string.h>
@ -69,10 +70,10 @@ void http_free_field(http_field *f) {
}
void http_free_hdr(http_hdr *hdr) {
for (int i = 0; i < hdr->field_num; i++) {
for (int i = 0; i < list_size(hdr->fields); i++) {
http_free_field(&hdr->fields[i]);
}
hdr->field_num = 0;
list_free(hdr->fields);
hdr->last_field_num = -1;
}
@ -86,8 +87,16 @@ void http_free_res(http_res *res) {
http_free_hdr(&res->hdr);
}
int http_init_hdr(http_hdr *hdr) {
hdr->fields = list_create(sizeof(http_field), HTTP_INIT_HEADER_FIELD_NUM);
if (hdr->fields == NULL)
return -1;
return 0;
}
int http_parse_header_field(http_hdr *hdr, const char *buf, const char *end_ptr, int flags) {
if (hdr->last_field_num > hdr->field_num) {
if (hdr->last_field_num > list_size(hdr->fields)) {
error("Unable to parse header: Invalid state");
return 3;
}
@ -117,7 +126,7 @@ int http_parse_header_field(http_hdr *hdr, const char *buf, const char *end_ptr,
str_trim_lws(&pos1, &pos2);
long len2 = pos2 - pos1;
char field_num = hdr->field_num;
int field_num = list_size(hdr->fields);
int found = http_get_header_field_num_len(hdr, buf, len1);
if (!(flags & HTTP_MERGE_FIELDS) || found == -1) {
if (http_add_header_field_len(hdr, buf, len1, pos1, len2 < 0 ? 0 : len2) != 0) {
@ -125,12 +134,12 @@ int http_parse_header_field(http_hdr *hdr, const char *buf, const char *end_ptr,
return 3;
}
} else {
field_num = (char) found;
field_num = found;
http_append_to_header_field(&hdr->fields[found], ", ", 2);
http_append_to_header_field(&hdr->fields[found], pos1, len2);
}
hdr->last_field_num = (char) field_num;
hdr->last_field_num = field_num;
return 0;
}
@ -142,8 +151,8 @@ int http_receive_request(sock *client, http_req *req) {
memset(req->method, 0, sizeof(req->method));
memset(req->version, 0, sizeof(req->version));
req->uri = NULL;
req->hdr.field_num = 0;
req->hdr.last_field_num = -1;
http_init_hdr(&req->hdr);
while (1) {
rcv_len = sock_recv(client, buf, CLIENT_MAX_HEADER_SIZE, MSG_PEEK);
@ -228,7 +237,7 @@ const char *http_get_header_field(const http_hdr *hdr, const char *field_name) {
const char *http_get_header_field_len(const http_hdr *hdr, const char *field_name, unsigned long len) {
int num = http_get_header_field_num_len(hdr, field_name, len);
return (num >= 0 && num < HTTP_MAX_HEADER_FIELD_NUM) ? http_field_get_value(&hdr->fields[num]) : NULL;
return (num >= 0 && num < list_size(hdr->fields)) ? http_field_get_value(&hdr->fields[num]) : NULL;
}
int http_get_header_field_num(const http_hdr *hdr, const char *field_name) {
@ -241,7 +250,7 @@ int http_get_header_field_num_len(const http_hdr *hdr, const char *field_name, u
field_name_1[len] = 0;
http_to_camel_case(field_name_1, HTTP_LOWER);
for (int i = 0; i < hdr->field_num; i++) {
for (int i = 0; i < list_size(hdr->fields); i++) {
strcpy(field_name_2, http_field_get_name(&hdr->fields[i]));
http_to_camel_case(field_name_2, HTTP_LOWER);
@ -257,10 +266,8 @@ int http_add_header_field(http_hdr *hdr, const char *field_name, const char *fie
}
int http_add_header_field_len(http_hdr *hdr, const char *name, unsigned long name_len, const char *value, unsigned long value_len) {
if (hdr->field_num >= HTTP_MAX_HEADER_FIELD_NUM)
return -1;
http_field *f = &hdr->fields[(int) hdr->field_num];
http_field *f;
hdr->fields = list_append_ptr(hdr->fields, (void **) &f);
if (name_len < sizeof(f->normal.name) && value_len < sizeof(f->normal.value)) {
f->type = HTTP_FIELD_NORMAL;
@ -288,7 +295,6 @@ int http_add_header_field_len(http_hdr *hdr, const char *name, unsigned long nam
http_to_camel_case(f->ex_name.name, HTTP_PRESERVE);
}
hdr->field_num++;
return 0;
}
@ -321,16 +327,15 @@ void http_remove_header_field(http_hdr *hdr, const char *field_name, int mode) {
int i = 0;
int diff = 1;
if (mode == HTTP_REMOVE_LAST) {
i = hdr->field_num - 1;
i = list_size(hdr->fields) - 1;
diff = -1;
}
for (; i < hdr->field_num && i >= 0; i += diff) {
for (; i < list_size(hdr->fields) && i >= 0; i += diff) {
strcpy(field_name_2, http_field_get_name(&hdr->fields[i]));
http_to_camel_case(field_name_2, HTTP_LOWER);
if (strcmp(field_name_1, field_name_2) == 0) {
http_free_field(&hdr->fields[i]);
memmove(&hdr->fields[i], &hdr->fields[i + 1], sizeof(hdr->fields[0]) * (hdr->field_num - i));
hdr->field_num--;
list_remove(hdr->fields, i);
if (mode == HTTP_REMOVE_ALL) {
i -= diff;
} else {
@ -343,7 +348,7 @@ void http_remove_header_field(http_hdr *hdr, const char *field_name, int mode) {
int http_send_response(sock *client, http_res *res) {
char buf[CLIENT_MAX_HEADER_SIZE];
long off = sprintf(buf, "HTTP/%s %03i %s\r\n", res->version, res->status->code, res->status->msg);
for (int i = 0; i < res->hdr.field_num; i++) {
for (int i = 0; i < list_size(res->hdr.fields); i++) {
const http_field *f = &res->hdr.fields[i];
off += sprintf(buf + off, "%s: %s\r\n", http_field_get_name(f), http_field_get_value(f));
}
@ -357,7 +362,7 @@ int http_send_response(sock *client, http_res *res) {
int http_send_request(sock *server, http_req *req) {
char buf[CLIENT_MAX_HEADER_SIZE];
long off = sprintf(buf, "%s %s HTTP/%s\r\n", req->method, req->uri, req->version);
for (int i = 0; i < req->hdr.field_num; i++) {
for (int i = 0; i < list_size(req->hdr.fields); i++) {
const http_field *f = &req->hdr.fields[i];
off += sprintf(buf + off, "%s: %s\r\n", http_field_get_name(f), http_field_get_value(f));
}