/* bookmarks.c * (c) 2002 Petr 'Brain' Kulhavy, Karel 'Clock' Kulhavy * This file is a part of the Links program, released under GPL. */ #include #include #include "links.h" #define SEARCH_IN_URL #ifdef SEARCH_IN_URL #define SHOW_URL #endif int bookmarks_codepage=0; unsigned char bookmarks_file[MAX_STR_LEN]=""; static struct stat bookmarks_st; static void *bookmark_new_item(void *); static unsigned char *bookmark_type_item(struct terminal *, void *, int); static void bookmark_delete_item(void *); static void bookmark_edit_item(struct dialog_data *,void *,void (*)(struct dialog_data *,void *,void *,struct list_description *),void *, unsigned char); static void bookmark_copy_item(void *, void *); static void bookmark_goto_item(struct session *, void *); static void *bookmark_default_value(struct session*, unsigned char); static void *bookmark_find_item(void *start, unsigned char *str, int direction); static void save_bookmarks(struct session *ses); struct list bookmarks={&bookmarks,&bookmarks,0,-1,NULL}; static struct history bookmark_search_history = { 0, { &bookmark_search_history.items, &bookmark_search_history.items } }; /* when you change anything, don't forget to change it in reinit_bookmarks too !*/ struct bookmark_ok_struct{ void (*fn)(struct dialog_data *,void *,void *,struct list_description *); void *data; struct dialog_data *dlg; }; struct bookmark_list{ /* common for all lists */ struct bookmark_list *next; struct bookmark_list *prev; unsigned char type; int depth; void *fotr; /* bookmark specific */ unsigned char *title; unsigned char *url; }; static struct list_description bookmark_ld= { 1, /* 0= flat; 1=tree */ &bookmarks, /* list */ bookmark_new_item, /* no codepage translations */ bookmark_edit_item, /* translate when create dialog and translate back when ok is pressed */ bookmark_default_value, /* codepage translation from current_page_encoding to UTF8 */ bookmark_delete_item, /* no codepage translations */ bookmark_copy_item, /* no codepage translations */ bookmark_type_item, /* no codepage translations (bookmarks are internally in UTF8) */ bookmark_find_item, &bookmark_search_history, 0, /* this is set in init_bookmarks function */ 15, /* # of items in main window */ T_BOOKMARK, T_BOOKMARKS_ALREADY_IN_USE, T_BOOKMARK_MANAGER, T_DELETE_BOOKMARK, T_GOTO, bookmark_goto_item, /* FIXME: should work (URL in UTF8), but who knows? */ save_bookmarks, NULL,NULL,0,0, /* internal vars */ 0, /* modified */ NULL, NULL, 0, }; struct kawasaki { unsigned char *title; unsigned char *url; }; /* clears the bookmark list */ static void free_bookmarks(void) { struct bookmark_list *bm; foreach(bm, bookmarks) { mem_free(bm->title); mem_free(bm->url); } free_list(bookmarks); free_list(bookmark_search_history.items); } /* called before exiting the links */ void finalize_bookmarks(void) { free_bookmarks(); } /* allocates struct kawasaki and puts current page title and url */ /* type: 0=item, 1=directory */ /* on error returns NULL */ static void *bookmark_default_value(struct session *ses, unsigned char type) { struct kawasaki *zelena; unsigned char *txt; txt=mem_alloc(MAX_STR_LEN); zelena=mem_alloc(sizeof(struct kawasaki)); zelena->url=NULL; zelena->title=NULL; if (get_current_url(ses,txt,MAX_STR_LEN)) { if (ses->screen->f_data) { struct conv_table* ct; ct=get_translation_table(ses->term->spec->charset,bookmark_ld.codepage); zelena->url=convert_string(ct,txt,strlen(txt),NULL); clr_white(zelena->url); } else zelena->url=stracpy(txt); } if (get_current_title(ses,txt,MAX_STR_LEN)) /* ses->screen->f_data must exist here */ { struct conv_table* ct; ct=get_translation_table(ses->term->spec->charset,bookmark_ld.codepage); zelena->title=convert_string(ct,txt,strlen(txt),NULL); clr_white(zelena->title); } mem_free(txt); return zelena; } static void bookmark_copy_item(void *in, void *out) { struct bookmark_list *item_in=(struct bookmark_list*)in; struct bookmark_list *item_out=(struct bookmark_list*)out; item_out->type=item_in->type; item_out->depth=item_in->depth; if (item_out->title) { mem_free(item_out->title); item_out->title=stracpy(item_in->title); } else internal("Bookmarks inconsistency.\n"); if (item_out->url) { mem_free(item_out->url); item_out->url=stracpy(item_in->url); } else internal("Bookmarks inconsistency.\n"); return; } static unsigned char *bm_add_msg[] = { TEXT_(T_NNAME), TEXT_(T_URL), }; /* Called to setup the add bookmark dialog */ static void bookmark_edit_item_fn(struct dialog_data *dlg) { int max = 0, min = 0; int w, rw; int y = gf_val(-1, -1*G_BFU_FONT_SIZE); struct terminal *term; int a; if (dlg->win->term->spec->braille) y += gf_val(1, G_BFU_FONT_SIZE); term = dlg->win->term; for (a=0;an-2;a++) { max_text_width(term, bm_add_msg[a], &max, AL_LEFT); min_text_width(term, bm_add_msg[a], &min, AL_LEFT); } max_buttons_width(term, dlg->items + dlg->n-2, 2, &max); min_buttons_width(term, dlg->items + dlg->n-2, 2, &min); w = term->x * 9 / 10 - 2 * DIALOG_LB; /*if (w > max) w = max;*/ if (w < min) w = min; /* if (w > term->x - 2 * DIALOG_LB) w = term->x - 2 * DIALOG_LB; if (w < 1) w = 1; */ /*w = rw = gf_val(50,30*G_BFU_FONT_SIZE);*/ rw = w; for (a=0;an-2;a++) { dlg_format_text_and_field(dlg, NULL, bm_add_msg[a], &dlg->items[a], 0, &y, w, &rw, COLOR_DIALOG_TEXT, AL_LEFT); y += gf_val(1,1*G_BFU_FONT_SIZE); } dlg_format_buttons(dlg, NULL, dlg->items+dlg->n-2, 2, 0, &y, w, &rw, AL_CENTER); w = rw; dlg->xw = w + 2 * DIALOG_LB; dlg->yw = y + 2 * DIALOG_TB; center_dlg(dlg); draw_dlg(dlg); y = dlg->y + DIALOG_TB; if (dlg->win->term->spec->braille) y += gf_val(1, G_BFU_FONT_SIZE); for (a=0;an-2;a++) { dlg_format_text_and_field(dlg, term, bm_add_msg[a], &dlg->items[a], dlg->x + DIALOG_LB, &y, w, NULL, COLOR_DIALOG_TEXT, AL_LEFT); y+=gf_val(1,G_BFU_FONT_SIZE); } dlg_format_buttons(dlg, term, &dlg->items[dlg->n-2], 2, dlg->x + DIALOG_LB, &y, w, NULL, AL_CENTER); } /* Puts url and title into the bookmark item */ static void bookmark_edit_done(void *data) { struct dialog *d=(struct dialog*)data; struct bookmark_list *item=(struct bookmark_list *)d->udata; unsigned char *title, *url; struct bookmark_ok_struct* s=(struct bookmark_ok_struct*)d->udata2; int a; if ((item->type)&1)a=4; /* folder */ else a=5; title = (unsigned char *)&d->items[a]; url = title + MAX_STR_LEN; if (item->title) { struct conv_table* ct; mem_free(item->title); ct=get_translation_table(s->dlg->win->term->spec->charset,bookmark_ld.codepage); item->title=convert_string(ct,title,strlen(title),NULL); clr_white(item->title); } if (item->url) { struct conv_table* ct; mem_free(item->url); ct=get_translation_table(s->dlg->win->term->spec->charset,bookmark_ld.codepage); item->url=convert_string(ct,url,strlen(url),NULL); clr_white(item->url); } s->fn(s->dlg,s->data,item,&bookmark_ld); d->udata=NULL; /* for abort function */ } /* destroys an item, this function is called when edit window is aborted */ static void bookmark_edit_abort(struct dialog_data *data) { struct bookmark_list *item=(struct bookmark_list*)data->dlg->udata; struct dialog *dlg=data->dlg; mem_free(dlg->udata2); if (item)bookmark_delete_item(item); } /* dlg_title is TITLE_EDIT or TITLE_ADD */ /* edit item function */ static void bookmark_edit_item(struct dialog_data *dlg,void *data,void (*ok_fn)(struct dialog_data *,void * ,void *, struct list_description *),void * ok_arg, unsigned char dlg_title) { struct bookmark_list *item=(struct bookmark_list *)data; unsigned char *title, *url; struct dialog *d; struct bookmark_ok_struct *s; int a; /* Create the dialog */ s=mem_alloc(sizeof(struct bookmark_ok_struct)); s->fn=ok_fn; s->data=ok_arg; s->dlg=dlg; if ((item->type)&1)a=4; /* folder */ else a=5; d = mem_calloc(sizeof(struct dialog) + a * sizeof(struct dialog_item) + 2 * MAX_STR_LEN); title = (unsigned char *)&d->items[a]; url = title + MAX_STR_LEN; { unsigned char *txt; struct conv_table* ct; ct=get_translation_table(bookmark_ld.codepage,dlg->win->term->spec->charset); txt=convert_string(ct,item->title,strlen(item->title),NULL); clr_white(txt); safe_strncpy(title,txt,MAX_STR_LEN); mem_free(txt); txt=convert_string(ct,item->url,strlen(item->url),NULL); clr_white(txt); safe_strncpy(url,txt,MAX_STR_LEN); mem_free(txt); } switch (dlg_title) { case TITLE_EDIT: if ((item->type)&1)d->title=TEXT_(T_EDIT_FOLDER); else d->title=TEXT_(T_EDIT_BOOKMARK); break; case TITLE_ADD: if ((item->type)&1)d->title=TEXT_(T_ADD_FOLDER); else d->title=TEXT_(T_ADD_BOOKMARK); break; default: internal("Unsupported dialog title.\n"); } d->fn = bookmark_edit_item_fn; d->udata=data; /* item */ d->udata2=s; d->refresh = bookmark_edit_done; d->abort = bookmark_edit_abort; d->refresh_data = d; d->items[0].type = D_FIELD; d->items[0].dlen = MAX_STR_LEN; d->items[0].data = title; d->items[0].fn = check_nonempty; a=0; if (!((item->type)&1)) /* item */ { d->items[1].type = D_FIELD; d->items[1].dlen = MAX_STR_LEN; d->items[1].data = url; d->items[1].fn = check_nonempty; a++; } d->items[a+1].type = D_BUTTON; d->items[a+1].gid = B_ENTER; d->items[a+1].fn = ok_dialog; d->items[a+1].text = TEXT_(T_OK); d->items[a+2].type = D_BUTTON; d->items[a+2].gid = B_ESC; d->items[a+2].text = TEXT_(T_CANCEL); d->items[a+2].fn = cancel_dialog; d->items[a+3].type = D_END; do_dialog(dlg->win->term, d, getml(d, NULL)); } /* create new bookmark item and returns pointer to it, on error returns 0*/ /* bookmark is filled with given data, data are deallocated afterwards */ static void *bookmark_new_item(void * data) { struct bookmark_list *b; struct kawasaki *zelena=(struct kawasaki *)data; b=mem_alloc(sizeof(struct bookmark_list)); b->url=mem_alloc(1); b->title=mem_alloc(1); *(b->url)=0; /* empty strings */ *(b->title)=0; if (!zelena) return b; if (zelena->title) { add_to_strn(&(b->title),zelena->title); mem_free(zelena->title); } if (zelena->url) { add_to_strn(&(b->url),zelena->url); mem_free(zelena->url); } mem_free(zelena); return b; } /* allocate string and print bookmark into it */ /* x: 0=type all, 1=type title only */ static unsigned char *bookmark_type_item(struct terminal *term, void *data, int x) { unsigned char *txt, *txt1; struct bookmark_list* item=(struct bookmark_list*)data; struct conv_table *table; if (item==(struct bookmark_list*)(void *)&bookmarks) /* head */ return stracpy(_(TEXT_(T_BOOKMARKS),term)); txt=stracpy(item->title); #ifdef SHOW_URL x=0; #endif if (!x&&!((item->type)&1)) { add_to_strn(&txt," ("); if (item->url)add_to_strn(&txt,item->url); add_to_strn(&txt,")"); } table=get_translation_table(bookmark_ld.codepage,term->spec->charset); txt1=convert_string(table,txt,strlen(txt),NULL); clr_white(txt1); mem_free(txt); return txt1; } /* goto bookmark (called when goto button is pressed) */ static void bookmark_goto_item(struct session *ses, void *i) { struct bookmark_list *item=(struct bookmark_list*)i; goto_url(ses,item->url); } /* delete bookmark from list */ static void bookmark_delete_item(void *data) { struct bookmark_list* item=(struct bookmark_list*)data; struct bookmark_list *prev=item->prev; struct bookmark_list *next=item->next; if (list_empty(*item)||((struct list*)data==&bookmarks))return; /* empty list or head */ if (item->url)mem_free(item->url); if (item->title)mem_free(item->title); if (next)next->prev=item->prev; if (prev)prev->next=item->next; mem_free(item); } static int substr_utf8(unsigned char *string, unsigned char *substr) { int r; string = unicode_upcase_string(string); substr = unicode_upcase_string(substr); r = !!strstr(string, substr); mem_free(string); mem_free(substr); return r; } static void * bookmark_find_item(void *start, unsigned char *str, int direction) { struct bookmark_list *b,*s=(struct bookmark_list *)start; if (direction==1) { for (b=s->next; b!=s; b=b->next) if (b->depth>-1) { if (b->title && substr_utf8(b->title,str)) return b; #ifdef SEARCH_IN_URL if (b->url && casestrstr(b->url,str)) return b; #endif } } else { for (b=s->prev; b!=s; b=b->prev) if (b->depth>-1) { if (b->title && substr_utf8(b->title,str)) return b; #ifdef SEARCH_IN_URL if (b->url && casestrstr(b->url,str)) return b; #endif } } if (b==s&&b->depth>-1&&b->title && substr_utf8(b->title,str)) return b; #ifdef SEARCH_IN_URL if (b==s&&b->depth>-1&&b->url && casestrstr(b->url,str)) return b; #endif return NULL; } /* returns previous item in the same folder and with same the depth, or father if there's no previous item */ /* we suppose that previous items have correct pointer fotr */ static struct bookmark_list *previous_on_this_level(struct bookmark_list *item) { struct bookmark_list *p; for (p=item->prev;p->depth>item->depth;p=p->fotr) ; return p; } /* create new bookmark at the end of the list */ /* if url is NULL, create folder */ /* both strings are null terminated */ static void add_bookmark(unsigned char *title, unsigned char *url, int depth) { struct bookmark_list *b,*p; struct document_options *dop; if (!title) return; b=mem_alloc(sizeof(struct bookmark_list)); dop=mem_calloc(sizeof(struct document_options)); dop->cp=bookmarks_codepage; { struct conv_table* ct; ct=get_translation_table(bookmarks_codepage,bookmark_ld.codepage); b->title=convert_string(ct,title,strlen(title),dop); clr_white(b->title); } if (url) { struct conv_table* ct; dop->plain=1; ct=get_translation_table(bookmarks_codepage,bookmark_ld.codepage); b->url=convert_string(ct,url,strlen(url),dop); clr_white(b->url); dop->plain=0; b->type=0; } else { b->url=mem_alloc(1); *(b->url)=0; b->type=1; } b->depth=depth; p=bookmarks.prev; b->prev=p; b->next=(struct bookmark_list *)(void *)&bookmarks; p->next=b; bookmarks.prev=b; p=previous_on_this_level(b); if (p->depthdepth)b->fotr=p; /* directory b belongs into */ else b->fotr=p->fotr; mem_free(dop); } /* Created pre-cooked bookmarks */ static void create_initial_bookmarks(void) { bookmarks_codepage=utf8_table; add_bookmark("Links",NULL,0); add_bookmark("English",NULL,1); add_bookmark("Calibration Procedure","http://atrey.karlin.mff.cuni.cz/~clock/twibright/links/calibration.html",2); add_bookmark("Links Homepage","http://atrey.karlin.mff.cuni.cz/~clock/twibright/links/",2); add_bookmark("Links Manual","http://links.twibright.com/user_en.html",2); add_bookmark("Cesky",NULL,1); add_bookmark("Kalibracni procedura","http://atrey.karlin.mff.cuni.cz/~clock/twibright/links/kalibrace.html",2); add_bookmark("Links: domaci stranka","http://atrey.karlin.mff.cuni.cz/~clock/twibright/links/index_cz.html",2); add_bookmark("Manual k Linksu","http://links.twibright.com/user.html",2); } static void load_bookmarks(struct session *ses) { unsigned char *buf; long len; unsigned char *p, *end; unsigned char *name, *attr; int namelen; int status; unsigned char *title=0; unsigned char *url=0; int depth; struct document_options dop; int rs; memset(&dop, 0, sizeof(dop)); dop.plain=1; /* status: * 0 = find
or element * 1 = find or

element * 2 = reading bookmark, find element, title is pointer * behind the leading element * 3 = reading folder name, find

element, title is * pointer behind leading

element */ buf=read_config_file(bookmarks_file); if (!buf){ create_initial_bookmarks(); bookmark_ld.modified=1; save_bookmarks(ses); return; } len=strlen(buf); p=buf; end=buf+len; status=0; /* find bookmark */ depth=0; d_opt=&dop; while (1) { unsigned char *s; while (p=end)break; /* parse end */ s=p; if (p+2<=end&&(p[1]=='!'||p[1]=='?')){p=skip_comment(p,end);continue;} if (parse_element(p, end, &name, &namelen, &attr, &p)){p++;continue;} switch (status) { case 0: /*
or */ if (namelen==2&&!casecmp(name,"dt",2)) status=1; else if (namelen==3&&!casecmp(name,"/dl",3)) { depth--; if (depth==-1)goto smitec; } continue; case 1: /* find "a" element */ if (namelen==1&&!casecmp(name,"a",1)) { if (!(url=get_attr_val(attr,"href")))continue; status=2; title=p; } if (namelen==2&&!casecmp(name,"h3",1)) { status=3; title=p; } continue; case 2: /* find "/a" element */ if (namelen!=2||casecmp(name,"/a",2))continue; /* ignore all other elements */ *s=0; add_bookmark(title,url,depth); mem_free(url); status=0; continue; case 3: /* find "/h3" element */ if (namelen!=3||casecmp(name,"/h3",2))continue; /* ignore all other elements */ *s=0; add_bookmark(title,NULL,depth); status=0; depth++; continue; } } if (status==2)mem_free(url); smitec: mem_free(buf); d_opt=&dd_opt; bookmark_ld.modified=0; EINTRLOOP(rs, stat(bookmarks_file, &bookmarks_st)); if (rs) memset(&bookmarks_st, 0, sizeof bookmarks_st); } void init_bookmarks(void) { memset(&bookmarks_st, 0, sizeof bookmarks_st); if (!*bookmarks_file) snprintf(bookmarks_file,MAX_STR_LEN,"%sbookmarks.html",links_home?links_home:(unsigned char*)""); bookmark_ld.codepage=utf8_table; load_bookmarks(NULL); } void reinit_bookmarks(struct session *ses, unsigned char *new_bookmarks_file, int new_bookmarks_codepage) { unsigned char *buf; if (test_list_window_in_use(&bookmark_ld, ses->term)) return; if (!strcmp(bookmarks_file, new_bookmarks_file)) { goto save_only; } buf=read_config_file(new_bookmarks_file); if (buf) { mem_free(buf); free_bookmarks(); safe_strncpy(bookmarks_file,new_bookmarks_file,MAX_STR_LEN); bookmarks_codepage=new_bookmarks_codepage; load_bookmarks(ses); reinit_list_window(&bookmark_ld); } else { save_only: safe_strncpy(bookmarks_file,new_bookmarks_file,MAX_STR_LEN); bookmarks_codepage=new_bookmarks_codepage; bookmark_ld.modified=1; save_bookmarks(ses); } } /* gets str, converts all < = > & to appropriate entity * returns allocated string with result */ static unsigned char *convert_to_entity_string(unsigned char *str) { unsigned char *dst, *p, *q; int size; for (size=1,p=str;*p;size+=*p=='&'?5:*p=='<'||*p=='>'||*p=='='?4:*p=='"'?6:1,p++) ; dst=mem_alloc(size); for (p=str,q=dst;*p;p++,q++) { switch(*p) { case '<': case '>': q[0]='&',q[1]=*p=='<'?'l':'g',q[2]='t',q[3]=';',q+=3; break; case '=': q[0]='&',q[1]='e',q[2]='q',q[3]=';',q+=3; break; case '&': q[0]='&',q[1]='a',q[2]='m',q[3]='p',q[4]=';',q+=4; break; case '"': q[0]='&',q[1]='q',q[2]='u',q[3]='o',q[4]='t',q[5]=';',q+=5; break; default: *q=*p; break; } } *q=0; return dst; } /* writes bookmarks to disk */ static void save_bookmarks(struct session *ses) { struct bookmark_list *b; int depth; int a; struct conv_table *ct; unsigned char *data; int l; int err; int rs; if (!bookmark_ld.modified)return; ct=get_translation_table(bookmark_ld.codepage,bookmarks_codepage); data=init_str(); l=0; add_to_str(&data, &l, "\n" "\n" "\n" "Links bookmarks\n" "\n" "

Links bookmarks

\n\n" "

\n" ); depth=0; foreach(b,bookmarks) { for (a=b->depth;a\n"); depth=b->depth; if ((b->type)&1) { unsigned char *txt, *txt1; txt=convert_string(ct,b->title,strlen(b->title),NULL); clr_white(txt); txt1=convert_to_entity_string(txt); add_to_str(&data, &l, "

"); add_to_str(&data, &l, txt1); add_to_str(&data, &l, "

\n
\n"); mem_free(txt); mem_free(txt1); depth++; } else { unsigned char *txt1, *txt2, *txt11; txt1=convert_string(ct,b->title,strlen(b->title),NULL); clr_white(txt1); txt2=convert_string(ct,b->url,strlen(b->url),NULL); clr_white(txt2); txt11=convert_to_entity_string(txt1); add_to_str(&data, &l, "
"); add_to_str(&data, &l, txt11); add_to_str(&data, &l, "\n"); mem_free(txt1); mem_free(txt2); mem_free(txt11); } } for (a=0;a\n"); add_to_str(&data, &l, "

\n" "\n" ); err = write_to_config_file(bookmarks_file, data); mem_free(data); if (!err) { bookmark_ld.modified=0; } else { if (ses) { unsigned char *f = stracpy(bookmarks_file); msg_box(ses->term, getml(f, NULL), TEXT_(T_BOOKMARK_ERROR), AL_CENTER | AL_EXTD_TEXT, TEXT_(T_UNABLE_TO_WRITE_TO_BOOKMARK_FILE), " ", f, ": ", get_err_msg(err), NULL, NULL, 1, TEXT_(T_CANCEL), NULL, B_ENTER | B_ESC); } } EINTRLOOP(rs, stat(bookmarks_file, &bookmarks_st)); if (rs) memset(&bookmarks_st, 0, sizeof bookmarks_st); } void menu_bookmark_manager(struct terminal *term,void *fcp,struct session *ses) { struct stat st; int rs; EINTRLOOP(rs, stat(bookmarks_file, &st)); if (!rs && (st.st_ctime != bookmarks_st.st_ctime || st.st_mtime != bookmarks_st.st_mtime || st.st_size != bookmarks_st.st_size)) { if (!test_list_window_in_use(&bookmark_ld, NULL)) { free_bookmarks(); load_bookmarks(ses); reinit_list_window(&bookmark_ld); } } create_list_window(&bookmark_ld,&bookmarks,term,ses); }