forked from sergiotarxz/mangareader
Multiple fixes in memory management.
This commit is contained in:
parent
f2e8f91f99
commit
dab00a460f
164
mangafox.c
164
mangafox.c
@ -13,6 +13,15 @@
|
||||
|
||||
const char *mangafox_url =
|
||||
"https://mangafox.fun";
|
||||
struct String {
|
||||
char *content;
|
||||
size_t size;
|
||||
};
|
||||
|
||||
struct SplittedString {
|
||||
struct String *substrings;
|
||||
size_t n_strings;
|
||||
};
|
||||
|
||||
struct Manga *
|
||||
parse_main_mangafox_page (
|
||||
@ -22,9 +31,6 @@ xmlXPathObjectPtr
|
||||
get_nodes_xpath_expression (
|
||||
const xmlDocPtr document,
|
||||
char *xpath);
|
||||
struct SplittedString *
|
||||
split(char *re_str, size_t re_str_size, const char *subject,
|
||||
size_t subject_size);
|
||||
char *
|
||||
alloc_string(size_t len);
|
||||
void
|
||||
@ -36,27 +42,26 @@ print_classes (const char *class_attribute,
|
||||
int
|
||||
has_class (const char *class_attribute,
|
||||
char *class_to_check);
|
||||
void
|
||||
splitted_string_free (struct SplittedString *splitted_string);
|
||||
|
||||
struct String {
|
||||
char *content;
|
||||
size_t size;
|
||||
};
|
||||
|
||||
struct SplittedString {
|
||||
struct String *substrings;
|
||||
size_t n_strings;
|
||||
};
|
||||
|
||||
struct SplittedString *
|
||||
split(char *re_str, size_t re_str_size, const char *subject,
|
||||
size_t subject_size);
|
||||
void
|
||||
iterate_string_to_split(struct SplittedString *splitted_string, pcre2_code *re, int *will_break, const char *subject,
|
||||
size_t subject_size, size_t *start_pos, size_t *offset);
|
||||
char *
|
||||
get_request (const char *url, gsize *size_response_text);
|
||||
|
||||
void
|
||||
retrieve_mangafox_title () {
|
||||
xmlDocPtr html_response;
|
||||
gsize *size_response_text = malloc (sizeof (gsize));
|
||||
gsize size_response_text;
|
||||
char *response_text = get_request (mangafox_url,
|
||||
size_response_text);
|
||||
&size_response_text);
|
||||
html_response = htmlReadMemory (response_text,
|
||||
*size_response_text,
|
||||
size_response_text,
|
||||
NULL,
|
||||
NULL,
|
||||
HTML_PARSE_RECOVER | HTML_PARSE_NODEFDTD
|
||||
@ -64,6 +69,7 @@ retrieve_mangafox_title () {
|
||||
);
|
||||
size_t manga_size;
|
||||
parse_main_mangafox_page (html_response, &manga_size);
|
||||
xmlFreeDoc (html_response);
|
||||
free (response_text);
|
||||
}
|
||||
|
||||
@ -127,8 +133,9 @@ parse_main_mangafox_page (const xmlDocPtr html_document,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
xmlXPathFreeObject (xpath_result);
|
||||
}
|
||||
|
||||
int
|
||||
@ -136,75 +143,111 @@ has_class (const char *class_attribute,
|
||||
char *class_to_check) {
|
||||
char *re = "\\s+";
|
||||
struct SplittedString *classes;
|
||||
int return_value = 0;
|
||||
classes = split(re, strlen(re), class_attribute,
|
||||
strlen(class_attribute));
|
||||
for (int i = 0; i<classes->n_strings; i++) {
|
||||
if (strcmp(classes->substrings[i].content, class_to_check) == 0) {
|
||||
return 1;
|
||||
return_value = 1;
|
||||
goto cleanup_has_class;
|
||||
}
|
||||
}
|
||||
return 0;
|
||||
|
||||
cleanup_has_class:
|
||||
splitted_string_free (classes);
|
||||
return return_value;
|
||||
}
|
||||
|
||||
void
|
||||
splitted_string_free (struct SplittedString *splitted_string) {
|
||||
for (int i = 0; i<splitted_string->n_strings; i++) {
|
||||
g_free (splitted_string->substrings[i].content);
|
||||
}
|
||||
|
||||
g_free (splitted_string->substrings);
|
||||
g_free (splitted_string);
|
||||
}
|
||||
|
||||
struct SplittedString *
|
||||
split(char *re_str, size_t re_str_size, const char *subject, size_t subject_size) {
|
||||
pcre2_code_8 *re;
|
||||
pcre2_match_data_8 *match_data;
|
||||
PCRE2_SIZE *ovector;
|
||||
int rc;
|
||||
int start_pos = 0;
|
||||
int offset = 0;
|
||||
size_t start_pos = 0;
|
||||
size_t offset = 0;
|
||||
int regex_compile_error;
|
||||
PCRE2_SIZE error_offset;
|
||||
struct SplittedString *splitted_string;
|
||||
|
||||
splitted_string = g_malloc ((sizeof (struct SplittedString)));
|
||||
splitted_string = g_malloc (sizeof *splitted_string);
|
||||
|
||||
splitted_string->n_strings = 0;
|
||||
splitted_string->substrings = NULL;
|
||||
re = pcre2_compile ((PCRE2_SPTR8) re_str,
|
||||
re_str_size, 0, ®ex_compile_error, &error_offset, NULL);
|
||||
while (start_pos < subject_size) {
|
||||
splitted_string->n_strings++;
|
||||
match_data = pcre2_match_data_create_from_pattern_8 (re, NULL);
|
||||
rc = pcre2_match_8 ( re, (PCRE2_SPTR8) subject, subject_size, start_pos, 0, match_data,
|
||||
NULL);
|
||||
if (splitted_string->substrings) {
|
||||
splitted_string->substrings = g_realloc (splitted_string
|
||||
->substrings, (sizeof (struct String)) * (offset + 1));
|
||||
} else {
|
||||
splitted_string->substrings = g_malloc (sizeof
|
||||
(struct String));
|
||||
}
|
||||
if (rc < 0) {
|
||||
struct String *current_substring =
|
||||
&splitted_string->substrings [offset];
|
||||
current_substring->content = alloc_string (subject_size
|
||||
- start_pos);
|
||||
copy_substring (subject, current_substring->content,
|
||||
subject_size,
|
||||
start_pos,
|
||||
subject_size - start_pos);
|
||||
current_substring->size = subject_size - start_pos;
|
||||
int will_break = 0;
|
||||
iterate_string_to_split(splitted_string, re, &will_break,
|
||||
subject, subject_size, &start_pos, &offset);
|
||||
if (will_break) {
|
||||
break;
|
||||
}
|
||||
ovector = pcre2_get_ovector_pointer_8(match_data);
|
||||
splitted_string->substrings[offset].content = alloc_string (
|
||||
ovector[0] - start_pos);
|
||||
copy_substring (subject, splitted_string->substrings[offset]
|
||||
.content,
|
||||
subject_size,
|
||||
start_pos,
|
||||
ovector[0] - start_pos - 1);
|
||||
splitted_string->substrings[offset].size =
|
||||
ovector[0] - start_pos - 1;
|
||||
|
||||
start_pos = ovector[1];
|
||||
offset++;
|
||||
}
|
||||
|
||||
pcre2_code_free (re);
|
||||
re = NULL;
|
||||
|
||||
return splitted_string;
|
||||
}
|
||||
|
||||
void
|
||||
iterate_string_to_split(struct SplittedString *splitted_string, pcre2_code *re, int *will_break, const char *subject,
|
||||
size_t subject_size, size_t *start_pos, size_t *offset) {
|
||||
pcre2_match_data_8 *match_data;
|
||||
PCRE2_SIZE *ovector;
|
||||
int rc;
|
||||
|
||||
splitted_string->n_strings++;
|
||||
match_data = pcre2_match_data_create_from_pattern_8 (re, NULL);
|
||||
rc = pcre2_match_8 ( re, (PCRE2_SPTR8) subject, subject_size, *start_pos, 0, match_data,
|
||||
NULL);
|
||||
if (splitted_string->substrings) {
|
||||
splitted_string->substrings = g_realloc (splitted_string->substrings,
|
||||
(sizeof *splitted_string->substrings) * (*offset + 1));
|
||||
} else {
|
||||
splitted_string->substrings = g_malloc (sizeof *splitted_string->substrings);
|
||||
}
|
||||
if (rc < 0) {
|
||||
struct String *current_substring =
|
||||
&splitted_string->substrings [*offset];
|
||||
current_substring->content = alloc_string (subject_size
|
||||
- *start_pos);
|
||||
copy_substring (subject, current_substring->content,
|
||||
subject_size,
|
||||
*start_pos,
|
||||
subject_size - *start_pos);
|
||||
current_substring->size = subject_size - *start_pos;
|
||||
|
||||
*will_break = 1;
|
||||
goto cleanup_iterate_string_to_split;
|
||||
}
|
||||
ovector = pcre2_get_ovector_pointer_8(match_data);
|
||||
splitted_string->substrings[*offset].content = alloc_string (
|
||||
ovector[0] - *start_pos);
|
||||
copy_substring (subject, splitted_string->substrings[*offset]
|
||||
.content,
|
||||
subject_size,
|
||||
*start_pos,
|
||||
ovector[0] - *start_pos - 1);
|
||||
splitted_string->substrings[*offset].size =
|
||||
ovector[0] - *start_pos - 1;
|
||||
|
||||
*start_pos = ovector[1];
|
||||
|
||||
*offset += 1;
|
||||
|
||||
cleanup_iterate_string_to_split:
|
||||
pcre2_match_data_free (match_data);
|
||||
}
|
||||
|
||||
char *
|
||||
alloc_string(size_t len) {
|
||||
char * return_value;
|
||||
@ -237,6 +280,9 @@ get_nodes_xpath_expression (const xmlDocPtr document, char *xpath) {
|
||||
return NULL;
|
||||
}
|
||||
result = xmlXPathEvalExpression ((const xmlChar *)xpath, context);
|
||||
|
||||
xmlXPathFreeContext (context);
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user