src/lib-http/http-header.c

/* Copyright (c) 2013-2018 Dovecot authors, see the included COPYING file */

#include "lib.h"
#include "array.h"

#include "http-header.h"

struct http_header {
    ARRAY_TYPE(http_header_field) fields;
    /* FIXME: ARRAY(struct http_header_field *) *btree; */
};

struct http_header *
http_header_create(pool_t pool, unsigned int init_count)
{
    struct http_header *header;

    header = p_new(pool, struct http_header, 1);
    p_array_init(&header->fields, pool, init_count);

    return header;
}

const struct http_header_field *
http_header_field_add(struct http_header *header,
    const char *name, const unsigned char *data, size_t size)
{
    struct http_header_field *hfield;
    pool_t pool = array_get_pool(&header->fields);
    void *value;

    hfield = array_append_space(&header->fields);
    hfield->name = p_strdup(pool, name);
    hfield->size = size;

    value = p_malloc(pool, size+1);
    memcpy(value, data, size);
    hfield->value = (const char *)value;

    return hfield;
}

void http_header_field_delete(struct http_header *header, const char *name)
{
    ARRAY_TYPE(http_header_field) *hfields = &header->fields;
    const struct http_header_field *hfield;

    array_foreach(hfields, hfield) {
        if (http_header_field_is(hfield, name)) {
            array_delete(hfields, array_foreach_idx(hfields, hfield), 1);
        }
    }
}

const ARRAY_TYPE(http_header_field) *
http_header_get_fields(const struct http_header *header)
{
    return &header->fields;
}

const struct http_header_field *
http_header_field_find(const struct http_header *header, const char *name)
{
    const struct http_header_field *hfield;

    array_foreach(&header->fields, hfield) {
        if (http_header_field_is(hfield, name))
            return hfield;
    }

    return NULL;
}

const char *
http_header_field_get(const struct http_header *header, const char *name)
{
    const struct http_header_field *hfield =
        http_header_field_find(header, name);
    return (hfield == NULL ? NULL : hfield->value);
}

int http_header_field_find_unique(const struct http_header *header,
    const char *name, const struct http_header_field **hfield_r)
{
    const struct http_header_field *hfield, *hfield_found = NULL;

    array_foreach(&header->fields, hfield) {
        if (http_header_field_is(hfield, name)) {
            if (hfield_found != NULL)
                return -1;
            hfield_found = hfield;
        }
    }

    *hfield_r = hfield_found;
    return (hfield_found == NULL ? 0 : 1);
}