int formparse(struct OperationConfig *config,
const char *input,
struct curl_httppost **httppost,
struct curl_httppost **last_post,
bool literal_value)
{
/* nextarg MUST be a string in the format 'name=contents' and we'll
build a linked list with the info */
char name[256];
char *contents = NULL;
char type_major[128] = "";
char type_minor[128] = "";
char *contp;
const char *type = NULL;
char *sep;
if((1 == sscanf(input, "%255[^=]=", name)) &&
((contp = strchr(input, '=')) != NULL)) {
/* the input was using the correct format */
/* Allocate the contents */
contents = strdup(contp+1);
if(!contents) {
fprintf(config->global->errors, "out of memory\n");
return 1;
}
contp = contents;
if('@' == contp[0] && !literal_value) {
/* we use the @-letter to indicate file name(s) */
struct multi_files *multi_start = NULL;
struct multi_files *multi_current = NULL;
char *ptr = contp;
char *end = ptr + strlen(ptr);
do {
/* since this was a file, it may have a content-type specifier
at the end too, or a filename. Or both. */
char *filename = NULL;
char *word_end;
bool semicolon;
type = NULL;
++ptr;
contp = get_param_word(&ptr, &word_end);
semicolon = (';' == *ptr) ? TRUE : FALSE;
*word_end = '\0'; /* terminate the contp */
/* have other content, continue parse */
while(semicolon) {
/* have type or filename field */
++ptr;
while(*ptr && (ISSPACE(*ptr)))
++ptr;
if(checkprefix("type=", ptr)) {
/* set type pointer */
type = &ptr[5];
/* verify that this is a fine type specifier */
if(2 != sscanf(type, "%127[^/]/%127[^;,\n]",
type_major, type_minor)) {
warnf(config, "Illegally formatted content-type field!\n");
Curl_safefree(contents);
FreeMultiInfo(&multi_start, &multi_current);
return 2; /* illegal content-type syntax! */
}
/* now point beyond the content-type specifier */
sep = (char *)type + strlen(type_major)+strlen(type_minor)+1;
/* there's a semicolon following - we check if it is a filename
specified and if not we simply assume that it is text that
the user wants included in the type and include that too up
to the next sep. */
ptr = sep;
if(*sep==';') {
if(!checkprefix(";filename=", sep)) {
ptr = sep + 1;
(void)get_param_word(&ptr, &sep);
semicolon = (';' == *ptr) ? TRUE : FALSE;
}
}
else
semicolon = FALSE;
if(*sep)
*sep = '\0'; /* zero terminate type string */
}
else if(checkprefix("filename=", ptr)) {
ptr += 9;
filename = get_param_word(&ptr, &word_end);
semicolon = (';' == *ptr) ? TRUE : FALSE;
*word_end = '\0';
}
else {
/* unknown prefix, skip to next block */
char *unknown = NULL;
unknown = get_param_word(&ptr, &word_end);
semicolon = (';' == *ptr) ? TRUE : FALSE;
if(*unknown) {
*word_end = '\0';
warnf(config, "skip unknown form field: %s\n", unknown);
}
}
}
/* now ptr point to comma or string end */
/* if type == NULL curl_formadd takes care of the problem */
if(*contp && !AddMultiFiles(contp, type, filename, &multi_start,
&multi_current)) {
warnf(config, "Error building form post!\n");
Curl_safefree(contents);
FreeMultiInfo(&multi_start, &multi_current);
return 3;
}
/* *ptr could be '\0', so we just check with the string end */
} while(ptr < end); /* loop if there's another file name */
/* now we add the multiple files section */
if(multi_start) {
struct curl_forms *forms = NULL;
struct multi_files *start = multi_start;
unsigned int i, count = 0;
while(start) {
start = start->next;
++count;
}
forms = malloc((count+1)*sizeof(struct curl_forms));
if(!forms) {
fprintf(config->global->errors, "Error building form post!\n");
Curl_safefree(contents);
FreeMultiInfo(&multi_start, &multi_current);
return 4;
}
for(i = 0, start = multi_start; i < count; ++i, start = start->next) {
forms[i].option = start->form.option;
forms[i].value = start->form.value;
}
forms[count].option = CURLFORM_END;
FreeMultiInfo(&multi_start, &multi_current);
if(curl_formadd(httppost, last_post,
CURLFORM_COPYNAME, name,
CURLFORM_ARRAY, forms, CURLFORM_END) != 0) {
warnf(config, "curl_formadd failed!\n");
Curl_safefree(forms);
Curl_safefree(contents);
return 5;
}
Curl_safefree(forms);
}
}
else {
struct curl_forms info[4];
int i = 0;
char *ct = literal_value ? NULL : strstr(contp, ";type=");
info[i].option = CURLFORM_COPYNAME;
info[i].value = name;
i++;
if(ct) {
info[i].option = CURLFORM_CONTENTTYPE;
info[i].value = &ct[6];
i++;
ct[0] = '\0'; /* zero terminate here */
}
if(contp[0]=='<' && !literal_value) {
info[i].option = CURLFORM_FILECONTENT;
info[i].value = contp+1;
i++;
info[i].option = CURLFORM_END;
if(curl_formadd(httppost, last_post,
CURLFORM_ARRAY, info, CURLFORM_END ) != 0) {
warnf(config, "curl_formadd failed, possibly the file %s is bad!\n",
contp+1);
Curl_safefree(contents);
return 6;
}
}
else {
#ifdef CURL_DOES_CONVERSIONS
if(convert_to_network(contp, strlen(contp))) {
warnf(config, "curl_formadd failed!\n");
Curl_safefree(contents);
return 7;
}
#endif
info[i].option = CURLFORM_COPYCONTENTS;
info[i].value = contp;
i++;
info[i].option = CURLFORM_END;
if(curl_formadd(httppost, last_post,
CURLFORM_ARRAY, info, CURLFORM_END) != 0) {
warnf(config, "curl_formadd failed!\n");
Curl_safefree(contents);
return 8;
}
}
}
}
else {
warnf(config, "Illegally formatted input field!\n");
return 1;
}
Curl_safefree(contents);
return 0;
}
int formparse(struct Configurable *config,
const char *input,
struct curl_httppost **httppost,
struct curl_httppost **last_post,
bool literal_value)
{
/* nextarg MUST be a string in the format 'name=contents' and we'll
build a linked list with the info */
char name[256];
char *contents = NULL;
char major[128];
char minor[128];
char *contp;
const char *type = NULL;
char *sep;
char *sep2;
if((1 == sscanf(input, "%255[^=]=", name)) &&
((contp = strchr(input, '=')) != NULL)) {
/* the input was using the correct format */
/* Allocate the contents */
contents = strdup(contp+1);
if(!contents) {
fprintf(config->errors, "out of memory\n");
return 1;
}
contp = contents;
if('@' == contp[0] && !literal_value) {
/* we use the @-letter to indicate file name(s) */
struct multi_files *multi_start = NULL;
struct multi_files *multi_current = NULL;
contp++;
do {
/* since this was a file, it may have a content-type specifier
at the end too, or a filename. Or both. */
char *ptr;
char *filename = NULL;
sep = strchr(contp, FORM_TYPE_SEPARATOR);
sep2 = strchr(contp, FORM_FILE_SEPARATOR);
/* pick the closest */
if(sep2 && (sep2 < sep)) {
sep = sep2;
/* no type was specified! */
}
type = NULL;
if(sep) {
/* if we got here on a comma, don't do much */
if(FORM_FILE_SEPARATOR == *sep)
ptr = NULL;
else
ptr = sep+1;
*sep = '\0'; /* terminate file name at separator */
while(ptr && (FORM_FILE_SEPARATOR!= *ptr)) {
/* pass all white spaces */
while(ISSPACE(*ptr))
ptr++;
if(checkprefix("type=", ptr)) {
/* set type pointer */
type = &ptr[5];
/* verify that this is a fine type specifier */
if(2 != sscanf(type, "%127[^/]/%127[^;,\n]",
major, minor)) {
warnf(config, "Illegally formatted content-type field!\n");
Curl_safefree(contents);
FreeMultiInfo(&multi_start, &multi_current);
return 2; /* illegal content-type syntax! */
}
/* now point beyond the content-type specifier */
sep = (char *)type + strlen(major)+strlen(minor)+1;
/* there's a semicolon following - we check if it is a filename
specified and if not we simply assume that it is text that
the user wants included in the type and include that too up
to the next zero or semicolon. */
if((*sep==';') && !checkprefix(";filename=", sep)) {
sep2 = strchr(sep+1, ';');
if(sep2)
sep = sep2;
else
sep = sep + strlen(sep); /* point to end of string */
}
if(*sep) {
*sep = '\0'; /* zero terminate type string */
ptr = sep+1;
}
else
ptr = NULL; /* end */
}
else if(checkprefix("filename=", ptr)) {
filename = &ptr[9];
ptr = strchr(filename, FORM_TYPE_SEPARATOR);
if(!ptr) {
ptr = strchr(filename, FORM_FILE_SEPARATOR);
}
if(ptr) {
*ptr = '\0'; /* zero terminate */
ptr++;
}
}
else
/* confusion, bail out of loop */
break;
}
/* find the following comma */
if(ptr)
sep = strchr(ptr, FORM_FILE_SEPARATOR);
else
sep = NULL;
}
else {
sep = strchr(contp, FORM_FILE_SEPARATOR);
}
if(sep) {
/* the next file name starts here */
*sep = '\0';
sep++;
}
/* if type == NULL curl_formadd takes care of the problem */
if(!AddMultiFiles(contp, type, filename, &multi_start,
&multi_current)) {
warnf(config, "Error building form post!\n");
Curl_safefree(contents);
FreeMultiInfo(&multi_start, &multi_current);
return 3;
}
contp = sep; /* move the contents pointer to after the separator */
} while(sep && *sep); /* loop if there's another file name */
/* now we add the multiple files section */
if(multi_start) {
struct curl_forms *forms = NULL;
struct multi_files *ptr = multi_start;
unsigned int i, count = 0;
while(ptr) {
ptr = ptr->next;
++count;
}
forms = malloc((count+1)*sizeof(struct curl_forms));
if(!forms) {
fprintf(config->errors, "Error building form post!\n");
Curl_safefree(contents);
FreeMultiInfo(&multi_start, &multi_current);
return 4;
}
for(i = 0, ptr = multi_start; i < count; ++i, ptr = ptr->next) {
forms[i].option = ptr->form.option;
forms[i].value = ptr->form.value;
}
forms[count].option = CURLFORM_END;
FreeMultiInfo(&multi_start, &multi_current);
if(curl_formadd(httppost, last_post,
CURLFORM_COPYNAME, name,
CURLFORM_ARRAY, forms, CURLFORM_END) != 0) {
warnf(config, "curl_formadd failed!\n");
Curl_safefree(forms);
Curl_safefree(contents);
return 5;
}
Curl_safefree(forms);
}
}
else {
struct curl_forms info[4];
int i = 0;
char *ct = literal_value ? NULL : strstr(contp, ";type=");
info[i].option = CURLFORM_COPYNAME;
info[i].value = name;
i++;
if(ct) {
info[i].option = CURLFORM_CONTENTTYPE;
info[i].value = &ct[6];
i++;
ct[0] = '\0'; /* zero terminate here */
}
if(contp[0]=='<' && !literal_value) {
info[i].option = CURLFORM_FILECONTENT;
info[i].value = contp+1;
i++;
info[i].option = CURLFORM_END;
if(curl_formadd(httppost, last_post,
CURLFORM_ARRAY, info, CURLFORM_END ) != 0) {
warnf(config, "curl_formadd failed, possibly the file %s is bad!\n",
contp+1);
Curl_safefree(contents);
return 6;
}
}
else {
#ifdef CURL_DOES_CONVERSIONS
if(convert_to_network(contp, strlen(contp))) {
warnf(config, "curl_formadd failed!\n");
Curl_safefree(contents);
return 7;
}
#endif
info[i].option = CURLFORM_COPYCONTENTS;
info[i].value = contp;
i++;
info[i].option = CURLFORM_END;
if(curl_formadd(httppost, last_post,
CURLFORM_ARRAY, info, CURLFORM_END) != 0) {
warnf(config, "curl_formadd failed!\n");
Curl_safefree(contents);
return 8;
}
}
}
}
else {
warnf(config, "Illegally formatted input field!\n");
return 1;
}
Curl_safefree(contents);
return 0;
}