ESL_DECLARE(int) esl_config_open_file(esl_config_t *cfg, const char *file_path)
{
FILE *f;
const char *path = NULL;
char path_buf[1024];
if (file_path[0] == '/') {
path = file_path;
} else {
esl_snprintf(path_buf, sizeof(path_buf), "%s%s%s", ESL_CONFIG_DIR, ESL_PATH_SEPARATOR, file_path);
path = path_buf;
}
if (!path) {
return 0;
}
memset(cfg, 0, sizeof(*cfg));
cfg->lockto = -1;
esl_log(ESL_LOG_DEBUG, "Configuration file is %s.\n", path);
f = fopen(path, "r");
if (!f) {
if (file_path[0] != '/') {
int last = -1;
char *var, *val;
esl_snprintf(path_buf, sizeof(path_buf), "%s%sopenesl.conf", ESL_CONFIG_DIR, ESL_PATH_SEPARATOR);
path = path_buf;
if ((f = fopen(path, "r")) == 0) {
return 0;
}
cfg->file = f;
esl_set_string(cfg->path, path);
while (esl_config_next_pair(cfg, &var, &val)) {
if ((cfg->sectno != last) && !strcmp(cfg->section, file_path)) {
cfg->lockto = cfg->sectno;
return 1;
}
}
esl_config_close_file(cfg);
memset(cfg, 0, sizeof(*cfg));
return 0;
}
return 0;
} else {
cfg->file = f;
esl_set_string(cfg->path, path);
return 1;
}
}
ESL_DECLARE(esl_status_t) esl_event_serialize_json(esl_event_t *event, char **str)
{
esl_event_header_t *hp;
cJSON *cj;
*str = NULL;
cj = cJSON_CreateObject();
for (hp = event->headers; hp; hp = hp->next) {
cJSON_AddItemToObject(cj, hp->name, cJSON_CreateString(hp->value));
}
if (event->body) {
int blen = (int) strlen(event->body);
char tmp[25];
esl_snprintf(tmp, sizeof(tmp), "%d", blen);
cJSON_AddItemToObject(cj, "Content-Length", cJSON_CreateString(tmp));
cJSON_AddItemToObject(cj, "_body", cJSON_CreateString(event->body));
}
*str = cJSON_Print(cj);
cJSON_Delete(cj);
return ESL_SUCCESS;
}
ESL_DECLARE(esl_status_t) esl_event_serialize(esl_event_t *event, char **str, esl_bool_t encode)
{
size_t len = 0;
esl_event_header_t *hp;
size_t llen = 0, dlen = 0, blocksize = 512, encode_len = 1536, new_len = 0;
char *buf;
char *encode_buf = NULL; /* used for url encoding of variables to make sure unsafe things stay out of the serialized copy */
int clen = 0;
if (!event || !event->headers)
return ESL_FAIL;
*str = NULL;
dlen = blocksize * 2;
if (!(buf = malloc(dlen))) {
return ESL_FAIL;
}
/* go ahead and give ourselves some space to work with, should save a few reallocs */
if (!(encode_buf = malloc(encode_len))) {
esl_safe_free(buf);
return ESL_FAIL;
}
/* esl_log_printf(ESL_CHANNEL_LOG, ESL_LOG_INFO, "hit serialized!.\n"); */
for (hp = event->headers; hp; hp = hp->next) {
/*
* grab enough memory to store 3x the string (url encode takes one char and turns it into %XX)
* so we could end up with a string that is 3 times the originals length, unlikely but rather
* be safe than destroy the string, also add one for the null. And try to be smart about using
* the memory, allocate and only reallocate if we need more. This avoids an alloc, free CPU
* destroying loop.
*/
if (!strcasecmp(hp->name, "content-length")) {
clen++;
}
new_len = (strlen(hp->value) * 3) + 1;
if (encode_len < new_len) {
char *tmp;
/* esl_log_printf(ESL_CHANNEL_LOG, ESL_LOG_INFO, "Allocing %d was %d.\n", ((strlen(hp->value) * 3) + 1), encode_len); */
/* we can use realloc for initial alloc as well, if encode_buf is zero it treats it as a malloc */
/* keep track of the size of our allocation */
encode_len = new_len;
if (!(tmp = realloc(encode_buf, encode_len))) {
/* oh boy, ram's gone, give back what little we grabbed and bail */
esl_safe_free(buf);
esl_safe_free(encode_buf);
return ESL_FAIL;
}
encode_buf = tmp;
}
/* handle any bad things in the string like newlines : etc that screw up the serialized format */
if (encode) {
esl_url_encode(hp->value, encode_buf, encode_len);
} else {
esl_snprintf(encode_buf, encode_len, "%s", hp->value);
}
llen = strlen(hp->name) + strlen(encode_buf) + 8;
if ((len + llen) > dlen) {
char *m;
dlen += (blocksize + (len + llen));
if ((m = realloc(buf, dlen))) {
buf = m;
} else {
/* we seem to be out of memory trying to resize the serialize string, give back what we already have and give up */
esl_safe_free(buf);
esl_safe_free(encode_buf);
return ESL_FAIL;
}
}
snprintf(buf + len, dlen - len, "%s: %s\n", hp->name, *encode_buf == '\0' ? "_undef_" : encode_buf);
len = strlen(buf);
}
/* we are done with the memory we used for encoding, give it back */
esl_safe_free(encode_buf);
if (event->body) {
int blen = (int) strlen(event->body);
llen = blen;
if (blen) {
llen += 25;
} else {
llen += 5;
}
if ((len + llen) > dlen) {
char *m;
dlen += (blocksize + (len + llen));
if ((m = realloc(buf, dlen))) {
buf = m;
} else {
esl_safe_free(buf);
return ESL_FAIL;
}
}
if (blen) {
if (clen) {
snprintf(buf + len, dlen - len, "\n%s", event->body);
} else {
snprintf(buf + len, dlen - len, "Content-Length: %d\n\n%s", (int)strlen(event->body), event->body);
}
}
} else {
snprintf(buf + len, dlen - len, "\n");
}
*str = buf;
return ESL_SUCCESS;
}
ESL_DECLARE(esl_status_t) esl_event_serialize(esl_event_t *event, char **str, esl_bool_t encode)
{
esl_size_t len = 0;
esl_event_header_t *hp;
esl_size_t llen = 0, dlen = 0, blocksize = 512, encode_len = 1536, new_len = 0;
char *buf;
char *encode_buf = NULL; /* used for url encoding of variables to make sure unsafe things stay out of the serialized copy */
*str = NULL;
dlen = blocksize * 2;
if (!(buf = malloc(dlen))) {
abort();
}
/* go ahead and give ourselves some space to work with, should save a few reallocs */
if (!(encode_buf = malloc(encode_len))) {
abort();
}
/* esl_log_printf(ESL_CHANNEL_LOG, ESL_LOG_INFO, "hit serialized!.\n"); */
for (hp = event->headers; hp; hp = hp->next) {
/*
* grab enough memory to store 3x the string (url encode takes one char and turns it into %XX)
* so we could end up with a string that is 3 times the originals length, unlikely but rather
* be safe than destroy the string, also add one for the null. And try to be smart about using
* the memory, allocate and only reallocate if we need more. This avoids an alloc, free CPU
* destroying loop.
*/
if (hp->idx) {
int i;
new_len = 0;
for(i = 0; i < hp->idx; i++) {
new_len += (strlen(hp->array[i]) * 3) + 1;
}
} else {
new_len = (strlen(hp->value) * 3) + 1;
}
if (encode_len < new_len) {
char *tmp;
/* keep track of the size of our allocation */
encode_len = new_len;
if (!(tmp = realloc(encode_buf, encode_len))) {
abort();
}
encode_buf = tmp;
}
/* handle any bad things in the string like newlines : etc that screw up the serialized format */
if (encode) {
esl_url_encode(hp->value, encode_buf, encode_len);
} else {
esl_snprintf(encode_buf, encode_len, "[%s]", hp->value);
}
llen = strlen(hp->name) + strlen(encode_buf) + 8;
if ((len + llen) > dlen) {
char *m;
char *old = buf;
dlen += (blocksize + (len + llen));
if ((m = realloc(buf, dlen))) {
buf = m;
} else {
buf = old;
abort();
}
}
esl_snprintf(buf + len, dlen - len, "%s: %s\n", hp->name, *encode_buf == '\0' ? "_undef_" : encode_buf);
len = strlen(buf);
}
/* we are done with the memory we used for encoding, give it back */
esl_safe_free(encode_buf);
if (event->body) {
int blen = (int) strlen(event->body);
llen = blen;
if (blen) {
llen += 25;
} else {
llen += 5;
}
if ((len + llen) > dlen) {
char *m;
char *old = buf;
dlen += (blocksize + (len + llen));
if ((m = realloc(buf, dlen))) {
buf = m;
} else {
buf = old;
abort();
}
}
if (blen) {
esl_snprintf(buf + len, dlen - len, "Content-Length: %d\n\n%s", blen, event->body);
} else {
esl_snprintf(buf + len, dlen - len, "\n");
}
} else {
esl_snprintf(buf + len, dlen - len, "\n");
}
*str = buf;
return ESL_SUCCESS;
}
static esl_status_t esl_event_base_add_header(esl_event_t *event, esl_stack_t stack, const char *header_name, char *data)
{
esl_event_header_t *header = NULL;
esl_ssize_t hlen = -1;
int exists = 0, fly = 0;
char *index_ptr;
int index = 0;
char *real_header_name = NULL;
if ((index_ptr = strchr(header_name, '['))) {
index_ptr++;
index = atoi(index_ptr);
real_header_name = DUP(header_name);
if ((index_ptr = strchr(real_header_name, '['))) {
*index_ptr++ = '\0';
}
header_name = real_header_name;
}
if (index_ptr || (stack & ESL_STACK_PUSH) || (stack & ESL_STACK_UNSHIFT)) {
if (!(header = esl_event_get_header_ptr(event, header_name)) && index_ptr) {
header = new_header(header_name);
if (esl_test_flag(event, ESL_EF_UNIQ_HEADERS)) {
esl_event_del_header(event, header_name);
}
fly++;
}
if ((header = esl_event_get_header_ptr(event, header_name))) {
if (index_ptr) {
if (index > -1 && index <= 4000) {
if (index < header->idx) {
FREE(header->array[index]);
header->array[index] = DUP(data);
} else {
int i;
char **m;
m = realloc(header->array, sizeof(char *) * (index + 1));
esl_assert(m);
header->array = m;
for (i = header->idx; i < index; i++) {
m[i] = DUP("");
}
m[index] = DUP(data);
header->idx = index + 1;
if (!fly) {
exists = 1;
}
goto redraw;
}
}
goto end;
} else {
if ((stack & ESL_STACK_PUSH) || (stack & ESL_STACK_UNSHIFT)) {
exists++;
stack &= ~(ESL_STACK_TOP | ESL_STACK_BOTTOM);
} else {
header = NULL;
}
}
}
}
if (!header) {
if (esl_strlen_zero(data)) {
esl_event_del_header(event, header_name);
FREE(data);
goto end;
}
if (esl_test_flag(event, ESL_EF_UNIQ_HEADERS)) {
esl_event_del_header(event, header_name);
}
if (strstr(data, "ARRAY::")) {
esl_event_add_array(event, header_name, data);
FREE(data);
goto end;
}
header = new_header(header_name);
}
if ((stack & ESL_STACK_PUSH) || (stack & ESL_STACK_UNSHIFT)) {
char **m = NULL;
esl_size_t len = 0;
char *hv;
int i = 0, j = 0;
if (header->value && !header->idx) {
m = malloc(sizeof(char *));
esl_assert(m);
m[0] = header->value;
header->value = NULL;
header->array = m;
header->idx++;
m = NULL;
}
i = header->idx + 1;
m = realloc(header->array, sizeof(char *) * i);
esl_assert(m);
if ((stack & ESL_STACK_PUSH)) {
m[header->idx] = data;
} else if ((stack & ESL_STACK_UNSHIFT)) {
for (j = header->idx; j > 0; j--) {
m[j] = m[j-1];
}
m[0] = data;
}
header->idx++;
header->array = m;
redraw:
len = 0;
for(j = 0; j < header->idx; j++) {
len += strlen(header->array[j]) + 2;
}
if (len) {
len += 8;
hv = realloc(header->value, len);
esl_assert(hv);
header->value = hv;
esl_snprintf(header->value, len, "ARRAY::");
for(j = 0; j < header->idx; j++) {
esl_snprintf(header->value + strlen(header->value), len - strlen(header->value), "%s%s", j == 0 ? "" : "|:", header->array[j]);
}
}
} else {
header->value = data;
}
if (!exists) {
header->hash = esl_ci_hashfunc_default(header->name, &hlen);
if ((stack & ESL_STACK_TOP)) {
header->next = event->headers;
event->headers = header;
if (!event->last_header) {
event->last_header = header;
}
} else {
if (event->last_header) {
event->last_header->next = header;
} else {
event->headers = header;
header->next = NULL;
}
event->last_header = header;
}
}
end:
esl_safe_free(real_header_name);
return ESL_SUCCESS;
}
static esl_status_t esl_event_base_add_header(esl_event_t *event, esl_stack_t stack, const char *header_name, char *data)
{
esl_event_header_t *header = NULL;
esl_ssize_t hlen = -1;
int exists = 0;
if ((stack & ESL_STACK_PUSH) || (stack & ESL_STACK_UNSHIFT) || esl_test_flag(event, ESL_EF_CONTAINS_ARRAYS)) {
if ((header = esl_event_get_header_ptr(event, header_name))) {
if (!(stack & ESL_STACK_PUSH) && !(stack & ESL_STACK_UNSHIFT) && header->idx) {
stack |= ESL_STACK_PUSH;
}
if ((stack & ESL_STACK_PUSH) || (stack & ESL_STACK_UNSHIFT)) {
exists++;
stack &= ~(ESL_STACK_TOP | ESL_STACK_BOTTOM);
} else {
header = NULL;
}
}
}
if (!header) {
#ifdef ESL_EVENT_RECYCLE
void *pop;
if (esl_queue_trypop(EVENT_HEADER_RECYCLE_QUEUE, &pop) == ESL_SUCCESS) {
header = (esl_event_header_t *) pop;
} else {
#endif
header = ALLOC(sizeof(*header));
esl_assert(header);
#ifdef ESL_EVENT_RECYCLE
}
#endif
if (esl_test_flag(event, ESL_EF_UNIQ_HEADERS)) {
esl_event_del_header(event, header_name);
}
memset(header, 0, sizeof(*header));
header->name = DUP(header_name);
}
if ((stack & ESL_STACK_PUSH) || (stack & ESL_STACK_UNSHIFT)) {
char **m = NULL;
esl_size_t len = 0;
char *hv;
int i = 0, j = 0;
esl_set_flag(event, ESL_EF_CONTAINS_ARRAYS);
if (header->value && !header->idx) {
m = malloc(sizeof(char *));
esl_assert(m);
m[0] = header->value;
header->value = NULL;
header->array = m;
header->idx++;
m = NULL;
}
i = header->idx + 1;
m = realloc(header->array, sizeof(char *) * i);
esl_assert(m);
if ((stack & ESL_STACK_PUSH)) {
m[header->idx] = data;
} else if ((stack & ESL_STACK_UNSHIFT)) {
for (j = header->idx; j > 0; j--) {
m[j] = m[j-1];
}
m[0] = data;
}
header->idx++;
header->array = m;
for(j = 0; j < header->idx; j++) {
len += strlen(header->array[j]) + 2;
}
if (len) {
len += 8;
hv = realloc(header->value, len);
esl_assert(hv);
header->value = hv;
esl_snprintf(header->value, len, "ARRAY::");
for(j = 0; j < header->idx; j++) {
esl_snprintf(header->value + strlen(header->value), len - strlen(header->value), "%s%s", j == 0 ? "" : "::", header->array[j]);
}
}
} else {
header->value = data;
}
if (!exists) {
header->hash = esl_ci_hashfunc_default(header->name, &hlen);
if ((stack & ESL_STACK_TOP)) {
header->next = event->headers;
event->headers = header;
if (!event->last_header) {
event->last_header = header;
}
} else {
if (event->last_header) {
event->last_header->next = header;
} else {
event->headers = header;
header->next = NULL;
}
event->last_header = header;
}
}
return ESL_SUCCESS;
}
