forked from sergiotarxz/mangareader
Refactoring a little to make the code easier to change.
This commit is contained in:
parent
dab00a460f
commit
6dd5f63428
412
mangafox.c
412
mangafox.c
@ -11,278 +11,324 @@
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#include <manga.h>
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#define XML_COPY_NODE_RECURSIVE 2 | 1
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const char *mangafox_url =
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"https://mangafox.fun";
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"https://mangafox.fun";
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struct String {
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char *content;
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size_t size;
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char *content;
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size_t size;
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};
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struct SplittedString {
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struct String *substrings;
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size_t n_strings;
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struct String *substrings;
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size_t n_strings;
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};
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struct Manga *
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parse_main_mangafox_page (
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const xmlDocPtr html_document,
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const size_t *size);
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const xmlDocPtr html_document,
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const size_t *size);
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xmlXPathObjectPtr
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get_nodes_xpath_expression (
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const xmlDocPtr document,
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char *xpath);
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const xmlDocPtr document,
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char *xpath);
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char *
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alloc_string(size_t len);
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void
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copy_substring(const char *origin, char *dest,
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size_t dest_len, size_t start, size_t len);
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size_t dest_len, size_t start, size_t len);
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void
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print_classes (const char *class_attribute,
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size_t class_attribute_size);
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size_t class_attribute_size);
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int
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has_class (const char *class_attribute,
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char *class_to_check);
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const char *class_to_check);
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void
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splitted_string_free (struct SplittedString *splitted_string);
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struct SplittedString *
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split(char *re_str, size_t re_str_size, const char *subject,
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size_t subject_size);
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size_t subject_size);
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void
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iterate_string_to_split(struct SplittedString *splitted_string, pcre2_code *re, int *will_break, const char *subject,
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size_t subject_size, size_t *start_pos, size_t *offset);
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size_t subject_size, size_t *start_pos, size_t *offset);
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char *
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get_request (const char *url, gsize *size_response_text);
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xmlNodePtr *
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loop_search_class(const xmlNodePtr node, xmlNodePtr *nodes,
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const char * class, size_t *len);
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void
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print_debug_nodes (const xmlDocPtr html_document,
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xmlNodePtr *nodes, size_t nodes_len);
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xmlNodePtr *
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find_all_manga_slide(const xmlDocPtr html_document,
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size_t *len);
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void
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retrieve_mangafox_title () {
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xmlDocPtr html_response;
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gsize size_response_text;
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char *response_text = get_request (mangafox_url,
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&size_response_text);
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html_response = htmlReadMemory (response_text,
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size_response_text,
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NULL,
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NULL,
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HTML_PARSE_RECOVER | HTML_PARSE_NODEFDTD
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| HTML_PARSE_NOERROR | HTML_PARSE_NOWARNING
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);
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size_t manga_size;
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parse_main_mangafox_page (html_response, &manga_size);
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xmlFreeDoc (html_response);
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free (response_text);
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xmlDocPtr html_response;
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gsize size_response_text;
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char *response_text = get_request (mangafox_url,
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&size_response_text);
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html_response = htmlReadMemory (response_text,
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size_response_text,
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NULL,
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NULL,
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HTML_PARSE_RECOVER | HTML_PARSE_NODEFDTD
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| HTML_PARSE_NOERROR | HTML_PARSE_NOWARNING
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);
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size_t manga_size;
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parse_main_mangafox_page (html_response, &manga_size);
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xmlFreeDoc (html_response);
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free (response_text);
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}
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char *
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get_request (const char *url, gsize *size_response_text) {
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SoupSession *soup_session;
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SoupMessage *msg;
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GValue response = G_VALUE_INIT;
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guint status;
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SoupSession *soup_session;
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SoupMessage *msg;
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GValue response = G_VALUE_INIT;
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guint status;
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*size_response_text = 0;
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g_value_init (&response, G_TYPE_BYTES);
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*size_response_text = 0;
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soup_session = soup_session_new ();
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msg = soup_message_new ("GET", url);
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status = soup_session_send_message (soup_session, msg);
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g_object_get_property(
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G_OBJECT (msg),
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"response-body-data",
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&response);
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g_value_init (&response, G_TYPE_BYTES);
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printf("%u\n", status);
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const char *html_response = g_bytes_get_data ((GBytes *)
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g_value_peek_pointer (&response),
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size_response_text);
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soup_session = soup_session_new ();
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msg = soup_message_new ("GET", url);
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status = soup_session_send_message (soup_session, msg);
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g_object_get_property(
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G_OBJECT (msg),
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"response-body-data",
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&response);
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char *return_value = g_strndup (html_response, *size_response_text);
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printf("%u\n", status);
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const char *html_response = g_bytes_get_data ((GBytes *)
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g_value_peek_pointer (&response),
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size_response_text);
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g_value_unset (&response);
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g_object_unref (soup_session);
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g_object_unref (msg);
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char *return_value = g_strndup (html_response, *size_response_text);
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return return_value;
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g_value_unset (&response);
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g_object_unref (soup_session);
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g_object_unref (msg);
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return return_value;
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}
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struct Manga *
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parse_main_mangafox_page (const xmlDocPtr html_document,
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const size_t *size) {
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xmlIndentTreeOutput = 1;
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xmlXPathObjectPtr xpath_result = get_nodes_xpath_expression (html_document,
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"//div[@class]");
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if (!xpath_result) {
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fprintf(stderr, "Empty xpath result\n");
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return NULL;
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}
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xmlNodeSetPtr node_set = xpath_result->nodesetval;
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if (!node_set) {
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fprintf(stderr, "No match\n");
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return NULL;
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}
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for (int i = 0; i < node_set->nodeNr; i++) {
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xmlNodePtr node = node_set->nodeTab[i];
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for (xmlAttr *attrs = node->properties; attrs; attrs=attrs->next) {
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if (!xmlStrcmp(attrs->name, (const xmlChar *)"class")
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&& attrs->children && attrs->children->content) {
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const char *content = (char *) attrs->children->content;
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if (has_class (content, "manga-slide")) {
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printf("%s\n", content);
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}
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}
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}
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}
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const size_t *size) {
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xmlNodePtr *nodes;
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size_t nodes_len = 0;
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xmlXPathFreeObject (xpath_result);
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nodes = find_all_manga_slide (html_document, &nodes_len);
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print_debug_nodes (html_document, nodes, nodes_len);
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}
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void
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print_debug_nodes (const xmlDocPtr html_document,
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xmlNodePtr *nodes, size_t nodes_len) {
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xmlBufferPtr buffer = xmlBufferCreate ();
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for (int i = 0; i < nodes_len; i++) {
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xmlNodeDump (buffer, html_document, nodes[i],
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0, 1);
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}
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xmlBufferDump (stdout, buffer);
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xmlBufferFree (buffer);
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}
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xmlNodePtr *
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find_all_manga_slide(const xmlDocPtr html_document,
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size_t *len) {
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xmlNodeSetPtr node_set;
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xmlNodePtr *nodes;
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xmlXPathObjectPtr xpath_result;
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node_set = NULL;
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nodes = NULL;
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xpath_result = get_nodes_xpath_expression (html_document,
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"//div[@class]");
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if (!xpath_result) {
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fprintf(stderr, "Empty xpath result\n");
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goto cleanup_find_all_manga_slide;
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}
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node_set = xpath_result->nodesetval;
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if (!node_set) {
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fprintf(stderr, "No match\n");
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goto cleanup_find_all_manga_slide;
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}
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for (int i = 0; i < node_set->nodeNr; i++) {
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xmlNodePtr node = node_set->nodeTab[i];
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nodes = loop_search_class (node, nodes, "manga-slide", len);
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}
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cleanup_find_all_manga_slide:
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xmlXPathFreeObject (xpath_result);
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return nodes;
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}
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xmlNodePtr *
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loop_search_class(const xmlNodePtr node, xmlNodePtr *nodes,
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const char * class, size_t *len) {
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for (xmlAttr *attr = node->properties; attr; attr=attr->next) {
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if (!xmlStrcmp(attr->name, (const xmlChar *)"class")
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&& attr->children && attr->children->content) {
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const char *content = (char *) attr->children->content;
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if (has_class (content, class)) {
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(*len)++;
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nodes = g_realloc (nodes, (sizeof *nodes) * *len);
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nodes[(*len)-1] = xmlCopyNode(node, XML_COPY_NODE_RECURSIVE);
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}
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}
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}
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return nodes;
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}
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int
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has_class (const char *class_attribute,
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char *class_to_check) {
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char *re = "\\s+";
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struct SplittedString *classes;
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int return_value = 0;
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classes = split(re, strlen(re), class_attribute,
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strlen(class_attribute));
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for (int i = 0; i<classes->n_strings; i++) {
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if (strcmp(classes->substrings[i].content, class_to_check) == 0) {
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return_value = 1;
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goto cleanup_has_class;
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}
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}
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const char *class_to_check) {
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char *re = "\\s+";
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struct SplittedString *classes;
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int return_value = 0;
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classes = split(re, strlen(re), class_attribute,
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strlen(class_attribute));
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for (int i = 0; i<classes->n_strings; i++) {
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if (strcmp(classes->substrings[i].content, class_to_check) == 0) {
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return_value = 1;
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goto cleanup_has_class;
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}
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}
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cleanup_has_class:
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splitted_string_free (classes);
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return return_value;
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splitted_string_free (classes);
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return return_value;
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}
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void
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splitted_string_free (struct SplittedString *splitted_string) {
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for (int i = 0; i<splitted_string->n_strings; i++) {
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g_free (splitted_string->substrings[i].content);
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}
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for (int i = 0; i<splitted_string->n_strings; i++) {
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g_free (splitted_string->substrings[i].content);
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}
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g_free (splitted_string->substrings);
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g_free (splitted_string);
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g_free (splitted_string->substrings);
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g_free (splitted_string);
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}
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struct SplittedString *
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split(char *re_str, size_t re_str_size, const char *subject, size_t subject_size) {
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pcre2_code_8 *re;
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size_t start_pos = 0;
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size_t offset = 0;
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int regex_compile_error;
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PCRE2_SIZE error_offset;
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struct SplittedString *splitted_string;
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pcre2_code_8 *re;
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size_t start_pos = 0;
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size_t offset = 0;
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int regex_compile_error;
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PCRE2_SIZE error_offset;
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struct SplittedString *splitted_string;
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splitted_string = g_malloc (sizeof *splitted_string);
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splitted_string = g_malloc (sizeof *splitted_string);
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splitted_string->n_strings = 0;
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splitted_string->substrings = NULL;
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re = pcre2_compile ((PCRE2_SPTR8) re_str,
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re_str_size, 0, ®ex_compile_error, &error_offset, NULL);
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while (start_pos < subject_size) {
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int will_break = 0;
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iterate_string_to_split(splitted_string, re, &will_break,
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subject, subject_size, &start_pos, &offset);
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if (will_break) {
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break;
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}
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}
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splitted_string->n_strings = 0;
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splitted_string->substrings = NULL;
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re = pcre2_compile ((PCRE2_SPTR8) re_str,
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re_str_size, 0, ®ex_compile_error, &error_offset, NULL);
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while (start_pos < subject_size) {
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int will_break = 0;
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iterate_string_to_split(splitted_string, re, &will_break,
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subject, subject_size, &start_pos, &offset);
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if (will_break) {
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break;
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}
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}
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pcre2_code_free (re);
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re = NULL;
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pcre2_code_free (re);
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re = NULL;
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return splitted_string;
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return splitted_string;
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}
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void
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iterate_string_to_split(struct SplittedString *splitted_string, pcre2_code *re, int *will_break, const char *subject,
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size_t subject_size, size_t *start_pos, size_t *offset) {
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pcre2_match_data_8 *match_data;
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PCRE2_SIZE *ovector;
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int rc;
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size_t subject_size, size_t *start_pos, size_t *offset) {
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pcre2_match_data_8 *match_data;
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PCRE2_SIZE *ovector;
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int rc;
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splitted_string->n_strings++;
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match_data = pcre2_match_data_create_from_pattern_8 (re, NULL);
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rc = pcre2_match_8 ( re, (PCRE2_SPTR8) subject, subject_size, *start_pos, 0, match_data,
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NULL);
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if (splitted_string->substrings) {
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splitted_string->substrings = g_realloc (splitted_string->substrings,
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(sizeof *splitted_string->substrings) * (*offset + 1));
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} else {
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splitted_string->substrings = g_malloc (sizeof *splitted_string->substrings);
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}
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if (rc < 0) {
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struct String *current_substring =
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&splitted_string->substrings [*offset];
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current_substring->content = alloc_string (subject_size
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- *start_pos);
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copy_substring (subject, current_substring->content,
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subject_size,
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*start_pos,
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subject_size - *start_pos);
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current_substring->size = subject_size - *start_pos;
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splitted_string->n_strings++;
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match_data = pcre2_match_data_create_from_pattern_8 (re, NULL);
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rc = pcre2_match_8 ( re, (PCRE2_SPTR8) subject, subject_size, *start_pos, 0, match_data,
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NULL);
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if (splitted_string->substrings) {
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splitted_string->substrings = g_realloc (splitted_string->substrings,
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(sizeof *splitted_string->substrings) * (*offset + 1));
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} else {
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splitted_string->substrings = g_malloc (sizeof *splitted_string->substrings);
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}
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if (rc < 0) {
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struct String *current_substring =
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&splitted_string->substrings [*offset];
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current_substring->content = alloc_string (subject_size
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- *start_pos);
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copy_substring (subject, current_substring->content,
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subject_size,
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*start_pos,
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subject_size - *start_pos);
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current_substring->size = subject_size - *start_pos;
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*will_break = 1;
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goto cleanup_iterate_string_to_split;
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}
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ovector = pcre2_get_ovector_pointer_8(match_data);
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splitted_string->substrings[*offset].content = alloc_string (
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ovector[0] - *start_pos);
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copy_substring (subject, splitted_string->substrings[*offset]
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.content,
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subject_size,
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*start_pos,
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ovector[0] - *start_pos - 1);
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splitted_string->substrings[*offset].size =
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ovector[0] - *start_pos - 1;
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*will_break = 1;
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goto cleanup_iterate_string_to_split;
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}
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ovector = pcre2_get_ovector_pointer_8(match_data);
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splitted_string->substrings[*offset].content = alloc_string (
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ovector[0] - *start_pos);
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copy_substring (subject, splitted_string->substrings[*offset]
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.content,
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subject_size,
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*start_pos,
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ovector[0] - *start_pos - 1);
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splitted_string->substrings[*offset].size =
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ovector[0] - *start_pos - 1;
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*start_pos = ovector[1];
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*start_pos = ovector[1];
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*offset += 1;
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*offset += 1;
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cleanup_iterate_string_to_split:
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pcre2_match_data_free (match_data);
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pcre2_match_data_free (match_data);
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}
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char *
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alloc_string(size_t len) {
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char * return_value;
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return g_malloc (len + 1 * sizeof *return_value);
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char * return_value;
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return g_malloc (len + 1 * sizeof *return_value);
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}
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void
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copy_substring(const char *origin, char *dest, size_t dest_len, size_t start,
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||||
size_t len) {
|
||||
size_t copying_offset = 0;
|
||||
while (copying_offset < len) {
|
||||
if (!(start+copying_offset <=dest_len)) {
|
||||
fprintf(stderr, "Read attempt out of bounds.%ld %ld %ld\n", dest_len, start, len);
|
||||
break;
|
||||
}
|
||||
dest[copying_offset] = origin[start+copying_offset];
|
||||
copying_offset++;
|
||||
}
|
||||
dest[len] = '\0';
|
||||
size_t len) {
|
||||
size_t copying_offset = 0;
|
||||
while (copying_offset < len) {
|
||||
if (!(start+copying_offset <=dest_len)) {
|
||||
fprintf(stderr, "Read attempt out of bounds.%ld %ld %ld\n", dest_len, start, len);
|
||||
break;
|
||||
}
|
||||
dest[copying_offset] = origin[start+copying_offset];
|
||||
copying_offset++;
|
||||
}
|
||||
dest[len] = '\0';
|
||||
}
|
||||
|
||||
xmlXPathObjectPtr
|
||||
get_nodes_xpath_expression (const xmlDocPtr document, char *xpath) {
|
||||
xmlXPathContextPtr context;
|
||||
xmlXPathObjectPtr result;
|
||||
xmlXPathContextPtr context;
|
||||
xmlXPathObjectPtr result;
|
||||
|
||||
context = xmlXPathNewContext (document);
|
||||
if (!context) {
|
||||
fprintf(stderr, "Error in xmlXpathNewContext\n");
|
||||
return NULL;
|
||||
}
|
||||
result = xmlXPathEvalExpression ((const xmlChar *)xpath, context);
|
||||
context = xmlXPathNewContext (document);
|
||||
result = xmlXPathEvalExpression ((const xmlChar *)xpath, context);
|
||||
|
||||
xmlXPathFreeContext (context);
|
||||
xmlXPathFreeContext (context);
|
||||
|
||||
return result;
|
||||
return result;
|
||||
}
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user